comparison d3.js @ 0:42c058ce5b7c

Initial public commit of Exif-Graphr
author IBBoard <dev@ibboard.co.uk>
date Sun, 14 Aug 2016 20:46:16 +0100
parents
children a11817a35877
comparison
equal deleted inserted replaced
-1:000000000000 0:42c058ce5b7c
1 !function() {
2 var d3 = {
3 version: "3.4.11"
4 };
5 if (!Date.now) Date.now = function() {
6 return +new Date();
7 };
8 var d3_arraySlice = [].slice, d3_array = function(list) {
9 return d3_arraySlice.call(list);
10 };
11 var d3_document = document, d3_documentElement = d3_document.documentElement, d3_window = window;
12 try {
13 d3_array(d3_documentElement.childNodes)[0].nodeType;
14 } catch (e) {
15 d3_array = function(list) {
16 var i = list.length, array = new Array(i);
17 while (i--) array[i] = list[i];
18 return array;
19 };
20 }
21 try {
22 d3_document.createElement("div").style.setProperty("opacity", 0, "");
23 } catch (error) {
24 var d3_element_prototype = d3_window.Element.prototype, d3_element_setAttribute = d3_element_prototype.setAttribute, d3_element_setAttributeNS = d3_element_prototype.setAttributeNS, d3_style_prototype = d3_window.CSSStyleDeclaration.prototype, d3_style_setProperty = d3_style_prototype.setProperty;
25 d3_element_prototype.setAttribute = function(name, value) {
26 d3_element_setAttribute.call(this, name, value + "");
27 };
28 d3_element_prototype.setAttributeNS = function(space, local, value) {
29 d3_element_setAttributeNS.call(this, space, local, value + "");
30 };
31 d3_style_prototype.setProperty = function(name, value, priority) {
32 d3_style_setProperty.call(this, name, value + "", priority);
33 };
34 }
35 d3.ascending = d3_ascending;
36 function d3_ascending(a, b) {
37 return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
38 }
39 d3.descending = function(a, b) {
40 return b < a ? -1 : b > a ? 1 : b >= a ? 0 : NaN;
41 };
42 d3.min = function(array, f) {
43 var i = -1, n = array.length, a, b;
44 if (arguments.length === 1) {
45 while (++i < n && !((a = array[i]) != null && a <= a)) a = undefined;
46 while (++i < n) if ((b = array[i]) != null && a > b) a = b;
47 } else {
48 while (++i < n && !((a = f.call(array, array[i], i)) != null && a <= a)) a = undefined;
49 while (++i < n) if ((b = f.call(array, array[i], i)) != null && a > b) a = b;
50 }
51 return a;
52 };
53 d3.max = function(array, f) {
54 var i = -1, n = array.length, a, b;
55 if (arguments.length === 1) {
56 while (++i < n && !((a = array[i]) != null && a <= a)) a = undefined;
57 while (++i < n) if ((b = array[i]) != null && b > a) a = b;
58 } else {
59 while (++i < n && !((a = f.call(array, array[i], i)) != null && a <= a)) a = undefined;
60 while (++i < n) if ((b = f.call(array, array[i], i)) != null && b > a) a = b;
61 }
62 return a;
63 };
64 d3.extent = function(array, f) {
65 var i = -1, n = array.length, a, b, c;
66 if (arguments.length === 1) {
67 while (++i < n && !((a = c = array[i]) != null && a <= a)) a = c = undefined;
68 while (++i < n) if ((b = array[i]) != null) {
69 if (a > b) a = b;
70 if (c < b) c = b;
71 }
72 } else {
73 while (++i < n && !((a = c = f.call(array, array[i], i)) != null && a <= a)) a = undefined;
74 while (++i < n) if ((b = f.call(array, array[i], i)) != null) {
75 if (a > b) a = b;
76 if (c < b) c = b;
77 }
78 }
79 return [ a, c ];
80 };
81 d3.sum = function(array, f) {
82 var s = 0, n = array.length, a, i = -1;
83 if (arguments.length === 1) {
84 while (++i < n) if (!isNaN(a = +array[i])) s += a;
85 } else {
86 while (++i < n) if (!isNaN(a = +f.call(array, array[i], i))) s += a;
87 }
88 return s;
89 };
90 function d3_number(x) {
91 return x != null && !isNaN(x);
92 }
93 d3.mean = function(array, f) {
94 var s = 0, n = array.length, a, i = -1, j = n;
95 if (arguments.length === 1) {
96 while (++i < n) if (d3_number(a = array[i])) s += a; else --j;
97 } else {
98 while (++i < n) if (d3_number(a = f.call(array, array[i], i))) s += a; else --j;
99 }
100 return j ? s / j : undefined;
101 };
102 d3.quantile = function(values, p) {
103 var H = (values.length - 1) * p + 1, h = Math.floor(H), v = +values[h - 1], e = H - h;
104 return e ? v + e * (values[h] - v) : v;
105 };
106 d3.median = function(array, f) {
107 if (arguments.length > 1) array = array.map(f);
108 array = array.filter(d3_number);
109 return array.length ? d3.quantile(array.sort(d3_ascending), .5) : undefined;
110 };
111 function d3_bisector(compare) {
112 return {
113 left: function(a, x, lo, hi) {
114 if (arguments.length < 3) lo = 0;
115 if (arguments.length < 4) hi = a.length;
116 while (lo < hi) {
117 var mid = lo + hi >>> 1;
118 if (compare(a[mid], x) < 0) lo = mid + 1; else hi = mid;
119 }
120 return lo;
121 },
122 right: function(a, x, lo, hi) {
123 if (arguments.length < 3) lo = 0;
124 if (arguments.length < 4) hi = a.length;
125 while (lo < hi) {
126 var mid = lo + hi >>> 1;
127 if (compare(a[mid], x) > 0) hi = mid; else lo = mid + 1;
128 }
129 return lo;
130 }
131 };
132 }
133 var d3_bisect = d3_bisector(d3_ascending);
134 d3.bisectLeft = d3_bisect.left;
135 d3.bisect = d3.bisectRight = d3_bisect.right;
136 d3.bisector = function(f) {
137 return d3_bisector(f.length === 1 ? function(d, x) {
138 return d3_ascending(f(d), x);
139 } : f);
140 };
141 d3.shuffle = function(array) {
142 var m = array.length, t, i;
143 while (m) {
144 i = Math.random() * m-- | 0;
145 t = array[m], array[m] = array[i], array[i] = t;
146 }
147 return array;
148 };
149 d3.permute = function(array, indexes) {
150 var i = indexes.length, permutes = new Array(i);
151 while (i--) permutes[i] = array[indexes[i]];
152 return permutes;
153 };
154 d3.pairs = function(array) {
155 var i = 0, n = array.length - 1, p0, p1 = array[0], pairs = new Array(n < 0 ? 0 : n);
156 while (i < n) pairs[i] = [ p0 = p1, p1 = array[++i] ];
157 return pairs;
158 };
159 d3.zip = function() {
160 if (!(n = arguments.length)) return [];
161 for (var i = -1, m = d3.min(arguments, d3_zipLength), zips = new Array(m); ++i < m; ) {
162 for (var j = -1, n, zip = zips[i] = new Array(n); ++j < n; ) {
163 zip[j] = arguments[j][i];
164 }
165 }
166 return zips;
167 };
168 function d3_zipLength(d) {
169 return d.length;
170 }
171 d3.transpose = function(matrix) {
172 return d3.zip.apply(d3, matrix);
173 };
174 d3.keys = function(map) {
175 var keys = [];
176 for (var key in map) keys.push(key);
177 return keys;
178 };
179 d3.values = function(map) {
180 var values = [];
181 for (var key in map) values.push(map[key]);
182 return values;
183 };
184 d3.entries = function(map) {
185 var entries = [];
186 for (var key in map) entries.push({
187 key: key,
188 value: map[key]
189 });
190 return entries;
191 };
192 d3.merge = function(arrays) {
193 var n = arrays.length, m, i = -1, j = 0, merged, array;
194 while (++i < n) j += arrays[i].length;
195 merged = new Array(j);
196 while (--n >= 0) {
197 array = arrays[n];
198 m = array.length;
199 while (--m >= 0) {
200 merged[--j] = array[m];
201 }
202 }
203 return merged;
204 };
205 var abs = Math.abs;
206 d3.range = function(start, stop, step) {
207 if (arguments.length < 3) {
208 step = 1;
209 if (arguments.length < 2) {
210 stop = start;
211 start = 0;
212 }
213 }
214 if ((stop - start) / step === Infinity) throw new Error("infinite range");
215 var range = [], k = d3_range_integerScale(abs(step)), i = -1, j;
216 start *= k, stop *= k, step *= k;
217 if (step < 0) while ((j = start + step * ++i) > stop) range.push(j / k); else while ((j = start + step * ++i) < stop) range.push(j / k);
218 return range;
219 };
220 function d3_range_integerScale(x) {
221 var k = 1;
222 while (x * k % 1) k *= 10;
223 return k;
224 }
225 function d3_class(ctor, properties) {
226 try {
227 for (var key in properties) {
228 Object.defineProperty(ctor.prototype, key, {
229 value: properties[key],
230 enumerable: false
231 });
232 }
233 } catch (e) {
234 ctor.prototype = properties;
235 }
236 }
237 d3.map = function(object) {
238 var map = new d3_Map();
239 if (object instanceof d3_Map) object.forEach(function(key, value) {
240 map.set(key, value);
241 }); else for (var key in object) map.set(key, object[key]);
242 return map;
243 };
244 function d3_Map() {}
245 d3_class(d3_Map, {
246 has: d3_map_has,
247 get: function(key) {
248 return this[d3_map_prefix + key];
249 },
250 set: function(key, value) {
251 return this[d3_map_prefix + key] = value;
252 },
253 remove: d3_map_remove,
254 keys: d3_map_keys,
255 values: function() {
256 var values = [];
257 this.forEach(function(key, value) {
258 values.push(value);
259 });
260 return values;
261 },
262 entries: function() {
263 var entries = [];
264 this.forEach(function(key, value) {
265 entries.push({
266 key: key,
267 value: value
268 });
269 });
270 return entries;
271 },
272 size: d3_map_size,
273 empty: d3_map_empty,
274 forEach: function(f) {
275 for (var key in this) if (key.charCodeAt(0) === d3_map_prefixCode) f.call(this, key.substring(1), this[key]);
276 }
277 });
278 var d3_map_prefix = "\x00", d3_map_prefixCode = d3_map_prefix.charCodeAt(0);
279 function d3_map_has(key) {
280 return d3_map_prefix + key in this;
281 }
282 function d3_map_remove(key) {
283 key = d3_map_prefix + key;
284 return key in this && delete this[key];
285 }
286 function d3_map_keys() {
287 var keys = [];
288 this.forEach(function(key) {
289 keys.push(key);
290 });
291 return keys;
292 }
293 function d3_map_size() {
294 var size = 0;
295 for (var key in this) if (key.charCodeAt(0) === d3_map_prefixCode) ++size;
296 return size;
297 }
298 function d3_map_empty() {
299 for (var key in this) if (key.charCodeAt(0) === d3_map_prefixCode) return false;
300 return true;
301 }
302 d3.nest = function() {
303 var nest = {}, keys = [], sortKeys = [], sortValues, rollup;
304 function map(mapType, array, depth) {
305 if (depth >= keys.length) return rollup ? rollup.call(nest, array) : sortValues ? array.sort(sortValues) : array;
306 var i = -1, n = array.length, key = keys[depth++], keyValue, object, setter, valuesByKey = new d3_Map(), values;
307 while (++i < n) {
308 if (values = valuesByKey.get(keyValue = key(object = array[i]))) {
309 values.push(object);
310 } else {
311 valuesByKey.set(keyValue, [ object ]);
312 }
313 }
314 if (mapType) {
315 object = mapType();
316 setter = function(keyValue, values) {
317 object.set(keyValue, map(mapType, values, depth));
318 };
319 } else {
320 object = {};
321 setter = function(keyValue, values) {
322 object[keyValue] = map(mapType, values, depth);
323 };
324 }
325 valuesByKey.forEach(setter);
326 return object;
327 }
328 function entries(map, depth) {
329 if (depth >= keys.length) return map;
330 var array = [], sortKey = sortKeys[depth++];
331 map.forEach(function(key, keyMap) {
332 array.push({
333 key: key,
334 values: entries(keyMap, depth)
335 });
336 });
337 return sortKey ? array.sort(function(a, b) {
338 return sortKey(a.key, b.key);
339 }) : array;
340 }
341 nest.map = function(array, mapType) {
342 return map(mapType, array, 0);
343 };
344 nest.entries = function(array) {
345 return entries(map(d3.map, array, 0), 0);
346 };
347 nest.key = function(d) {
348 keys.push(d);
349 return nest;
350 };
351 nest.sortKeys = function(order) {
352 sortKeys[keys.length - 1] = order;
353 return nest;
354 };
355 nest.sortValues = function(order) {
356 sortValues = order;
357 return nest;
358 };
359 nest.rollup = function(f) {
360 rollup = f;
361 return nest;
362 };
363 return nest;
364 };
365 d3.set = function(array) {
366 var set = new d3_Set();
367 if (array) for (var i = 0, n = array.length; i < n; ++i) set.add(array[i]);
368 return set;
369 };
370 function d3_Set() {}
371 d3_class(d3_Set, {
372 has: d3_map_has,
373 add: function(value) {
374 this[d3_map_prefix + value] = true;
375 return value;
376 },
377 remove: function(value) {
378 value = d3_map_prefix + value;
379 return value in this && delete this[value];
380 },
381 values: d3_map_keys,
382 size: d3_map_size,
383 empty: d3_map_empty,
384 forEach: function(f) {
385 for (var value in this) if (value.charCodeAt(0) === d3_map_prefixCode) f.call(this, value.substring(1));
386 }
387 });
388 d3.behavior = {};
389 d3.rebind = function(target, source) {
390 var i = 1, n = arguments.length, method;
391 while (++i < n) target[method = arguments[i]] = d3_rebind(target, source, source[method]);
392 return target;
393 };
394 function d3_rebind(target, source, method) {
395 return function() {
396 var value = method.apply(source, arguments);
397 return value === source ? target : value;
398 };
399 }
400 function d3_vendorSymbol(object, name) {
401 if (name in object) return name;
402 name = name.charAt(0).toUpperCase() + name.substring(1);
403 for (var i = 0, n = d3_vendorPrefixes.length; i < n; ++i) {
404 var prefixName = d3_vendorPrefixes[i] + name;
405 if (prefixName in object) return prefixName;
406 }
407 }
408 var d3_vendorPrefixes = [ "webkit", "ms", "moz", "Moz", "o", "O" ];
409 function d3_noop() {}
410 d3.dispatch = function() {
411 var dispatch = new d3_dispatch(), i = -1, n = arguments.length;
412 while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
413 return dispatch;
414 };
415 function d3_dispatch() {}
416 d3_dispatch.prototype.on = function(type, listener) {
417 var i = type.indexOf("."), name = "";
418 if (i >= 0) {
419 name = type.substring(i + 1);
420 type = type.substring(0, i);
421 }
422 if (type) return arguments.length < 2 ? this[type].on(name) : this[type].on(name, listener);
423 if (arguments.length === 2) {
424 if (listener == null) for (type in this) {
425 if (this.hasOwnProperty(type)) this[type].on(name, null);
426 }
427 return this;
428 }
429 };
430 function d3_dispatch_event(dispatch) {
431 var listeners = [], listenerByName = new d3_Map();
432 function event() {
433 var z = listeners, i = -1, n = z.length, l;
434 while (++i < n) if (l = z[i].on) l.apply(this, arguments);
435 return dispatch;
436 }
437 event.on = function(name, listener) {
438 var l = listenerByName.get(name), i;
439 if (arguments.length < 2) return l && l.on;
440 if (l) {
441 l.on = null;
442 listeners = listeners.slice(0, i = listeners.indexOf(l)).concat(listeners.slice(i + 1));
443 listenerByName.remove(name);
444 }
445 if (listener) listeners.push(listenerByName.set(name, {
446 on: listener
447 }));
448 return dispatch;
449 };
450 return event;
451 }
452 d3.event = null;
453 function d3_eventPreventDefault() {
454 d3.event.preventDefault();
455 }
456 function d3_eventSource() {
457 var e = d3.event, s;
458 while (s = e.sourceEvent) e = s;
459 return e;
460 }
461 function d3_eventDispatch(target) {
462 var dispatch = new d3_dispatch(), i = 0, n = arguments.length;
463 while (++i < n) dispatch[arguments[i]] = d3_dispatch_event(dispatch);
464 dispatch.of = function(thiz, argumentz) {
465 return function(e1) {
466 try {
467 var e0 = e1.sourceEvent = d3.event;
468 e1.target = target;
469 d3.event = e1;
470 dispatch[e1.type].apply(thiz, argumentz);
471 } finally {
472 d3.event = e0;
473 }
474 };
475 };
476 return dispatch;
477 }
478 d3.requote = function(s) {
479 return s.replace(d3_requote_re, "\\$&");
480 };
481 var d3_requote_re = /[\\\^\$\*\+\?\|\[\]\(\)\.\{\}]/g;
482 var d3_subclass = {}.__proto__ ? function(object, prototype) {
483 object.__proto__ = prototype;
484 } : function(object, prototype) {
485 for (var property in prototype) object[property] = prototype[property];
486 };
487 function d3_selection(groups) {
488 d3_subclass(groups, d3_selectionPrototype);
489 return groups;
490 }
491 var d3_select = function(s, n) {
492 return n.querySelector(s);
493 }, d3_selectAll = function(s, n) {
494 return n.querySelectorAll(s);
495 }, d3_selectMatcher = d3_documentElement.matches || d3_documentElement[d3_vendorSymbol(d3_documentElement, "matchesSelector")], d3_selectMatches = function(n, s) {
496 return d3_selectMatcher.call(n, s);
497 };
498 if (typeof Sizzle === "function") {
499 d3_select = function(s, n) {
500 return Sizzle(s, n)[0] || null;
501 };
502 d3_selectAll = Sizzle;
503 d3_selectMatches = Sizzle.matchesSelector;
504 }
505 d3.selection = function() {
506 return d3_selectionRoot;
507 };
508 var d3_selectionPrototype = d3.selection.prototype = [];
509 d3_selectionPrototype.select = function(selector) {
510 var subgroups = [], subgroup, subnode, group, node;
511 selector = d3_selection_selector(selector);
512 for (var j = -1, m = this.length; ++j < m; ) {
513 subgroups.push(subgroup = []);
514 subgroup.parentNode = (group = this[j]).parentNode;
515 for (var i = -1, n = group.length; ++i < n; ) {
516 if (node = group[i]) {
517 subgroup.push(subnode = selector.call(node, node.__data__, i, j));
518 if (subnode && "__data__" in node) subnode.__data__ = node.__data__;
519 } else {
520 subgroup.push(null);
521 }
522 }
523 }
524 return d3_selection(subgroups);
525 };
526 function d3_selection_selector(selector) {
527 return typeof selector === "function" ? selector : function() {
528 return d3_select(selector, this);
529 };
530 }
531 d3_selectionPrototype.selectAll = function(selector) {
532 var subgroups = [], subgroup, node;
533 selector = d3_selection_selectorAll(selector);
534 for (var j = -1, m = this.length; ++j < m; ) {
535 for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
536 if (node = group[i]) {
537 subgroups.push(subgroup = d3_array(selector.call(node, node.__data__, i, j)));
538 subgroup.parentNode = node;
539 }
540 }
541 }
542 return d3_selection(subgroups);
543 };
544 function d3_selection_selectorAll(selector) {
545 return typeof selector === "function" ? selector : function() {
546 return d3_selectAll(selector, this);
547 };
548 }
549 var d3_nsPrefix = {
550 svg: "http://www.w3.org/2000/svg",
551 xhtml: "http://www.w3.org/1999/xhtml",
552 xlink: "http://www.w3.org/1999/xlink",
553 xml: "http://www.w3.org/XML/1998/namespace",
554 xmlns: "http://www.w3.org/2000/xmlns/"
555 };
556 d3.ns = {
557 prefix: d3_nsPrefix,
558 qualify: function(name) {
559 var i = name.indexOf(":"), prefix = name;
560 if (i >= 0) {
561 prefix = name.substring(0, i);
562 name = name.substring(i + 1);
563 }
564 return d3_nsPrefix.hasOwnProperty(prefix) ? {
565 space: d3_nsPrefix[prefix],
566 local: name
567 } : name;
568 }
569 };
570 d3_selectionPrototype.attr = function(name, value) {
571 if (arguments.length < 2) {
572 if (typeof name === "string") {
573 var node = this.node();
574 name = d3.ns.qualify(name);
575 return name.local ? node.getAttributeNS(name.space, name.local) : node.getAttribute(name);
576 }
577 for (value in name) this.each(d3_selection_attr(value, name[value]));
578 return this;
579 }
580 return this.each(d3_selection_attr(name, value));
581 };
582 function d3_selection_attr(name, value) {
583 name = d3.ns.qualify(name);
584 function attrNull() {
585 this.removeAttribute(name);
586 }
587 function attrNullNS() {
588 this.removeAttributeNS(name.space, name.local);
589 }
590 function attrConstant() {
591 this.setAttribute(name, value);
592 }
593 function attrConstantNS() {
594 this.setAttributeNS(name.space, name.local, value);
595 }
596 function attrFunction() {
597 var x = value.apply(this, arguments);
598 if (x == null) this.removeAttribute(name); else this.setAttribute(name, x);
599 }
600 function attrFunctionNS() {
601 var x = value.apply(this, arguments);
602 if (x == null) this.removeAttributeNS(name.space, name.local); else this.setAttributeNS(name.space, name.local, x);
603 }
604 return value == null ? name.local ? attrNullNS : attrNull : typeof value === "function" ? name.local ? attrFunctionNS : attrFunction : name.local ? attrConstantNS : attrConstant;
605 }
606 function d3_collapse(s) {
607 return s.trim().replace(/\s+/g, " ");
608 }
609 d3_selectionPrototype.classed = function(name, value) {
610 if (arguments.length < 2) {
611 if (typeof name === "string") {
612 var node = this.node(), n = (name = d3_selection_classes(name)).length, i = -1;
613 if (value = node.classList) {
614 while (++i < n) if (!value.contains(name[i])) return false;
615 } else {
616 value = node.getAttribute("class");
617 while (++i < n) if (!d3_selection_classedRe(name[i]).test(value)) return false;
618 }
619 return true;
620 }
621 for (value in name) this.each(d3_selection_classed(value, name[value]));
622 return this;
623 }
624 return this.each(d3_selection_classed(name, value));
625 };
626 function d3_selection_classedRe(name) {
627 return new RegExp("(?:^|\\s+)" + d3.requote(name) + "(?:\\s+|$)", "g");
628 }
629 function d3_selection_classes(name) {
630 return (name + "").trim().split(/^|\s+/);
631 }
632 function d3_selection_classed(name, value) {
633 name = d3_selection_classes(name).map(d3_selection_classedName);
634 var n = name.length;
635 function classedConstant() {
636 var i = -1;
637 while (++i < n) name[i](this, value);
638 }
639 function classedFunction() {
640 var i = -1, x = value.apply(this, arguments);
641 while (++i < n) name[i](this, x);
642 }
643 return typeof value === "function" ? classedFunction : classedConstant;
644 }
645 function d3_selection_classedName(name) {
646 var re = d3_selection_classedRe(name);
647 return function(node, value) {
648 if (c = node.classList) return value ? c.add(name) : c.remove(name);
649 var c = node.getAttribute("class") || "";
650 if (value) {
651 re.lastIndex = 0;
652 if (!re.test(c)) node.setAttribute("class", d3_collapse(c + " " + name));
653 } else {
654 node.setAttribute("class", d3_collapse(c.replace(re, " ")));
655 }
656 };
657 }
658 d3_selectionPrototype.style = function(name, value, priority) {
659 var n = arguments.length;
660 if (n < 3) {
661 if (typeof name !== "string") {
662 if (n < 2) value = "";
663 for (priority in name) this.each(d3_selection_style(priority, name[priority], value));
664 return this;
665 }
666 if (n < 2) return d3_window.getComputedStyle(this.node(), null).getPropertyValue(name);
667 priority = "";
668 }
669 return this.each(d3_selection_style(name, value, priority));
670 };
671 function d3_selection_style(name, value, priority) {
672 function styleNull() {
673 this.style.removeProperty(name);
674 }
675 function styleConstant() {
676 this.style.setProperty(name, value, priority);
677 }
678 function styleFunction() {
679 var x = value.apply(this, arguments);
680 if (x == null) this.style.removeProperty(name); else this.style.setProperty(name, x, priority);
681 }
682 return value == null ? styleNull : typeof value === "function" ? styleFunction : styleConstant;
683 }
684 d3_selectionPrototype.property = function(name, value) {
685 if (arguments.length < 2) {
686 if (typeof name === "string") return this.node()[name];
687 for (value in name) this.each(d3_selection_property(value, name[value]));
688 return this;
689 }
690 return this.each(d3_selection_property(name, value));
691 };
692 function d3_selection_property(name, value) {
693 function propertyNull() {
694 delete this[name];
695 }
696 function propertyConstant() {
697 this[name] = value;
698 }
699 function propertyFunction() {
700 var x = value.apply(this, arguments);
701 if (x == null) delete this[name]; else this[name] = x;
702 }
703 return value == null ? propertyNull : typeof value === "function" ? propertyFunction : propertyConstant;
704 }
705 d3_selectionPrototype.text = function(value) {
706 return arguments.length ? this.each(typeof value === "function" ? function() {
707 var v = value.apply(this, arguments);
708 this.textContent = v == null ? "" : v;
709 } : value == null ? function() {
710 this.textContent = "";
711 } : function() {
712 this.textContent = value;
713 }) : this.node().textContent;
714 };
715 d3_selectionPrototype.html = function(value) {
716 return arguments.length ? this.each(typeof value === "function" ? function() {
717 var v = value.apply(this, arguments);
718 this.innerHTML = v == null ? "" : v;
719 } : value == null ? function() {
720 this.innerHTML = "";
721 } : function() {
722 this.innerHTML = value;
723 }) : this.node().innerHTML;
724 };
725 d3_selectionPrototype.append = function(name) {
726 name = d3_selection_creator(name);
727 return this.select(function() {
728 return this.appendChild(name.apply(this, arguments));
729 });
730 };
731 function d3_selection_creator(name) {
732 return typeof name === "function" ? name : (name = d3.ns.qualify(name)).local ? function() {
733 return this.ownerDocument.createElementNS(name.space, name.local);
734 } : function() {
735 return this.ownerDocument.createElementNS(this.namespaceURI, name);
736 };
737 }
738 d3_selectionPrototype.insert = function(name, before) {
739 name = d3_selection_creator(name);
740 before = d3_selection_selector(before);
741 return this.select(function() {
742 return this.insertBefore(name.apply(this, arguments), before.apply(this, arguments) || null);
743 });
744 };
745 d3_selectionPrototype.remove = function() {
746 return this.each(function() {
747 var parent = this.parentNode;
748 if (parent) parent.removeChild(this);
749 });
750 };
751 d3_selectionPrototype.data = function(value, key) {
752 var i = -1, n = this.length, group, node;
753 if (!arguments.length) {
754 value = new Array(n = (group = this[0]).length);
755 while (++i < n) {
756 if (node = group[i]) {
757 value[i] = node.__data__;
758 }
759 }
760 return value;
761 }
762 function bind(group, groupData) {
763 var i, n = group.length, m = groupData.length, n0 = Math.min(n, m), updateNodes = new Array(m), enterNodes = new Array(m), exitNodes = new Array(n), node, nodeData;
764 if (key) {
765 var nodeByKeyValue = new d3_Map(), dataByKeyValue = new d3_Map(), keyValues = [], keyValue;
766 for (i = -1; ++i < n; ) {
767 keyValue = key.call(node = group[i], node.__data__, i);
768 if (nodeByKeyValue.has(keyValue)) {
769 exitNodes[i] = node;
770 } else {
771 nodeByKeyValue.set(keyValue, node);
772 }
773 keyValues.push(keyValue);
774 }
775 for (i = -1; ++i < m; ) {
776 keyValue = key.call(groupData, nodeData = groupData[i], i);
777 if (node = nodeByKeyValue.get(keyValue)) {
778 updateNodes[i] = node;
779 node.__data__ = nodeData;
780 } else if (!dataByKeyValue.has(keyValue)) {
781 enterNodes[i] = d3_selection_dataNode(nodeData);
782 }
783 dataByKeyValue.set(keyValue, nodeData);
784 nodeByKeyValue.remove(keyValue);
785 }
786 for (i = -1; ++i < n; ) {
787 if (nodeByKeyValue.has(keyValues[i])) {
788 exitNodes[i] = group[i];
789 }
790 }
791 } else {
792 for (i = -1; ++i < n0; ) {
793 node = group[i];
794 nodeData = groupData[i];
795 if (node) {
796 node.__data__ = nodeData;
797 updateNodes[i] = node;
798 } else {
799 enterNodes[i] = d3_selection_dataNode(nodeData);
800 }
801 }
802 for (;i < m; ++i) {
803 enterNodes[i] = d3_selection_dataNode(groupData[i]);
804 }
805 for (;i < n; ++i) {
806 exitNodes[i] = group[i];
807 }
808 }
809 enterNodes.update = updateNodes;
810 enterNodes.parentNode = updateNodes.parentNode = exitNodes.parentNode = group.parentNode;
811 enter.push(enterNodes);
812 update.push(updateNodes);
813 exit.push(exitNodes);
814 }
815 var enter = d3_selection_enter([]), update = d3_selection([]), exit = d3_selection([]);
816 if (typeof value === "function") {
817 while (++i < n) {
818 bind(group = this[i], value.call(group, group.parentNode.__data__, i));
819 }
820 } else {
821 while (++i < n) {
822 bind(group = this[i], value);
823 }
824 }
825 update.enter = function() {
826 return enter;
827 };
828 update.exit = function() {
829 return exit;
830 };
831 return update;
832 };
833 function d3_selection_dataNode(data) {
834 return {
835 __data__: data
836 };
837 }
838 d3_selectionPrototype.datum = function(value) {
839 return arguments.length ? this.property("__data__", value) : this.property("__data__");
840 };
841 d3_selectionPrototype.filter = function(filter) {
842 var subgroups = [], subgroup, group, node;
843 if (typeof filter !== "function") filter = d3_selection_filter(filter);
844 for (var j = 0, m = this.length; j < m; j++) {
845 subgroups.push(subgroup = []);
846 subgroup.parentNode = (group = this[j]).parentNode;
847 for (var i = 0, n = group.length; i < n; i++) {
848 if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
849 subgroup.push(node);
850 }
851 }
852 }
853 return d3_selection(subgroups);
854 };
855 function d3_selection_filter(selector) {
856 return function() {
857 return d3_selectMatches(this, selector);
858 };
859 }
860 d3_selectionPrototype.order = function() {
861 for (var j = -1, m = this.length; ++j < m; ) {
862 for (var group = this[j], i = group.length - 1, next = group[i], node; --i >= 0; ) {
863 if (node = group[i]) {
864 if (next && next !== node.nextSibling) next.parentNode.insertBefore(node, next);
865 next = node;
866 }
867 }
868 }
869 return this;
870 };
871 d3_selectionPrototype.sort = function(comparator) {
872 comparator = d3_selection_sortComparator.apply(this, arguments);
873 for (var j = -1, m = this.length; ++j < m; ) this[j].sort(comparator);
874 return this.order();
875 };
876 function d3_selection_sortComparator(comparator) {
877 if (!arguments.length) comparator = d3_ascending;
878 return function(a, b) {
879 return a && b ? comparator(a.__data__, b.__data__) : !a - !b;
880 };
881 }
882 d3_selectionPrototype.each = function(callback) {
883 return d3_selection_each(this, function(node, i, j) {
884 callback.call(node, node.__data__, i, j);
885 });
886 };
887 function d3_selection_each(groups, callback) {
888 for (var j = 0, m = groups.length; j < m; j++) {
889 for (var group = groups[j], i = 0, n = group.length, node; i < n; i++) {
890 if (node = group[i]) callback(node, i, j);
891 }
892 }
893 return groups;
894 }
895 d3_selectionPrototype.call = function(callback) {
896 var args = d3_array(arguments);
897 callback.apply(args[0] = this, args);
898 return this;
899 };
900 d3_selectionPrototype.empty = function() {
901 return !this.node();
902 };
903 d3_selectionPrototype.node = function() {
904 for (var j = 0, m = this.length; j < m; j++) {
905 for (var group = this[j], i = 0, n = group.length; i < n; i++) {
906 var node = group[i];
907 if (node) return node;
908 }
909 }
910 return null;
911 };
912 d3_selectionPrototype.size = function() {
913 var n = 0;
914 this.each(function() {
915 ++n;
916 });
917 return n;
918 };
919 function d3_selection_enter(selection) {
920 d3_subclass(selection, d3_selection_enterPrototype);
921 return selection;
922 }
923 var d3_selection_enterPrototype = [];
924 d3.selection.enter = d3_selection_enter;
925 d3.selection.enter.prototype = d3_selection_enterPrototype;
926 d3_selection_enterPrototype.append = d3_selectionPrototype.append;
927 d3_selection_enterPrototype.empty = d3_selectionPrototype.empty;
928 d3_selection_enterPrototype.node = d3_selectionPrototype.node;
929 d3_selection_enterPrototype.call = d3_selectionPrototype.call;
930 d3_selection_enterPrototype.size = d3_selectionPrototype.size;
931 d3_selection_enterPrototype.select = function(selector) {
932 var subgroups = [], subgroup, subnode, upgroup, group, node;
933 for (var j = -1, m = this.length; ++j < m; ) {
934 upgroup = (group = this[j]).update;
935 subgroups.push(subgroup = []);
936 subgroup.parentNode = group.parentNode;
937 for (var i = -1, n = group.length; ++i < n; ) {
938 if (node = group[i]) {
939 subgroup.push(upgroup[i] = subnode = selector.call(group.parentNode, node.__data__, i, j));
940 subnode.__data__ = node.__data__;
941 } else {
942 subgroup.push(null);
943 }
944 }
945 }
946 return d3_selection(subgroups);
947 };
948 d3_selection_enterPrototype.insert = function(name, before) {
949 if (arguments.length < 2) before = d3_selection_enterInsertBefore(this);
950 return d3_selectionPrototype.insert.call(this, name, before);
951 };
952 function d3_selection_enterInsertBefore(enter) {
953 var i0, j0;
954 return function(d, i, j) {
955 var group = enter[j].update, n = group.length, node;
956 if (j != j0) j0 = j, i0 = 0;
957 if (i >= i0) i0 = i + 1;
958 while (!(node = group[i0]) && ++i0 < n) ;
959 return node;
960 };
961 }
962 d3_selectionPrototype.transition = function() {
963 var id = d3_transitionInheritId || ++d3_transitionId, subgroups = [], subgroup, node, transition = d3_transitionInherit || {
964 time: Date.now(),
965 ease: d3_ease_cubicInOut,
966 delay: 0,
967 duration: 250
968 };
969 for (var j = -1, m = this.length; ++j < m; ) {
970 subgroups.push(subgroup = []);
971 for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
972 if (node = group[i]) d3_transitionNode(node, i, id, transition);
973 subgroup.push(node);
974 }
975 }
976 return d3_transition(subgroups, id);
977 };
978 d3_selectionPrototype.interrupt = function() {
979 return this.each(d3_selection_interrupt);
980 };
981 function d3_selection_interrupt() {
982 var lock = this.__transition__;
983 if (lock) ++lock.active;
984 }
985 d3.select = function(node) {
986 var group = [ typeof node === "string" ? d3_select(node, d3_document) : node ];
987 group.parentNode = d3_documentElement;
988 return d3_selection([ group ]);
989 };
990 d3.selectAll = function(nodes) {
991 var group = d3_array(typeof nodes === "string" ? d3_selectAll(nodes, d3_document) : nodes);
992 group.parentNode = d3_documentElement;
993 return d3_selection([ group ]);
994 };
995 var d3_selectionRoot = d3.select(d3_documentElement);
996 d3_selectionPrototype.on = function(type, listener, capture) {
997 var n = arguments.length;
998 if (n < 3) {
999 if (typeof type !== "string") {
1000 if (n < 2) listener = false;
1001 for (capture in type) this.each(d3_selection_on(capture, type[capture], listener));
1002 return this;
1003 }
1004 if (n < 2) return (n = this.node()["__on" + type]) && n._;
1005 capture = false;
1006 }
1007 return this.each(d3_selection_on(type, listener, capture));
1008 };
1009 function d3_selection_on(type, listener, capture) {
1010 var name = "__on" + type, i = type.indexOf("."), wrap = d3_selection_onListener;
1011 if (i > 0) type = type.substring(0, i);
1012 var filter = d3_selection_onFilters.get(type);
1013 if (filter) type = filter, wrap = d3_selection_onFilter;
1014 function onRemove() {
1015 var l = this[name];
1016 if (l) {
1017 this.removeEventListener(type, l, l.$);
1018 delete this[name];
1019 }
1020 }
1021 function onAdd() {
1022 var l = wrap(listener, d3_array(arguments));
1023 onRemove.call(this);
1024 this.addEventListener(type, this[name] = l, l.$ = capture);
1025 l._ = listener;
1026 }
1027 function removeAll() {
1028 var re = new RegExp("^__on([^.]+)" + d3.requote(type) + "$"), match;
1029 for (var name in this) {
1030 if (match = name.match(re)) {
1031 var l = this[name];
1032 this.removeEventListener(match[1], l, l.$);
1033 delete this[name];
1034 }
1035 }
1036 }
1037 return i ? listener ? onAdd : onRemove : listener ? d3_noop : removeAll;
1038 }
1039 var d3_selection_onFilters = d3.map({
1040 mouseenter: "mouseover",
1041 mouseleave: "mouseout"
1042 });
1043 d3_selection_onFilters.forEach(function(k) {
1044 if ("on" + k in d3_document) d3_selection_onFilters.remove(k);
1045 });
1046 function d3_selection_onListener(listener, argumentz) {
1047 return function(e) {
1048 var o = d3.event;
1049 d3.event = e;
1050 argumentz[0] = this.__data__;
1051 try {
1052 listener.apply(this, argumentz);
1053 } finally {
1054 d3.event = o;
1055 }
1056 };
1057 }
1058 function d3_selection_onFilter(listener, argumentz) {
1059 var l = d3_selection_onListener(listener, argumentz);
1060 return function(e) {
1061 var target = this, related = e.relatedTarget;
1062 if (!related || related !== target && !(related.compareDocumentPosition(target) & 8)) {
1063 l.call(target, e);
1064 }
1065 };
1066 }
1067 var d3_event_dragSelect = "onselectstart" in d3_document ? null : d3_vendorSymbol(d3_documentElement.style, "userSelect"), d3_event_dragId = 0;
1068 function d3_event_dragSuppress() {
1069 var name = ".dragsuppress-" + ++d3_event_dragId, click = "click" + name, w = d3.select(d3_window).on("touchmove" + name, d3_eventPreventDefault).on("dragstart" + name, d3_eventPreventDefault).on("selectstart" + name, d3_eventPreventDefault);
1070 if (d3_event_dragSelect) {
1071 var style = d3_documentElement.style, select = style[d3_event_dragSelect];
1072 style[d3_event_dragSelect] = "none";
1073 }
1074 return function(suppressClick) {
1075 w.on(name, null);
1076 if (d3_event_dragSelect) style[d3_event_dragSelect] = select;
1077 if (suppressClick) {
1078 function off() {
1079 w.on(click, null);
1080 }
1081 w.on(click, function() {
1082 d3_eventPreventDefault();
1083 off();
1084 }, true);
1085 setTimeout(off, 0);
1086 }
1087 };
1088 }
1089 d3.mouse = function(container) {
1090 return d3_mousePoint(container, d3_eventSource());
1091 };
1092 var d3_mouse_bug44083 = /WebKit/.test(d3_window.navigator.userAgent) ? -1 : 0;
1093 function d3_mousePoint(container, e) {
1094 if (e.changedTouches) e = e.changedTouches[0];
1095 var svg = container.ownerSVGElement || container;
1096 if (svg.createSVGPoint) {
1097 var point = svg.createSVGPoint();
1098 if (d3_mouse_bug44083 < 0 && (d3_window.scrollX || d3_window.scrollY)) {
1099 svg = d3.select("body").append("svg").style({
1100 position: "absolute",
1101 top: 0,
1102 left: 0,
1103 margin: 0,
1104 padding: 0,
1105 border: "none"
1106 }, "important");
1107 var ctm = svg[0][0].getScreenCTM();
1108 d3_mouse_bug44083 = !(ctm.f || ctm.e);
1109 svg.remove();
1110 }
1111 if (d3_mouse_bug44083) point.x = e.pageX, point.y = e.pageY; else point.x = e.clientX,
1112 point.y = e.clientY;
1113 point = point.matrixTransform(container.getScreenCTM().inverse());
1114 return [ point.x, point.y ];
1115 }
1116 var rect = container.getBoundingClientRect();
1117 return [ e.clientX - rect.left - container.clientLeft, e.clientY - rect.top - container.clientTop ];
1118 }
1119 d3.touches = function(container, touches) {
1120 if (arguments.length < 2) touches = d3_eventSource().touches;
1121 return touches ? d3_array(touches).map(function(touch) {
1122 var point = d3_mousePoint(container, touch);
1123 point.identifier = touch.identifier;
1124 return point;
1125 }) : [];
1126 };
1127 d3.behavior.drag = function() {
1128 var event = d3_eventDispatch(drag, "drag", "dragstart", "dragend"), origin = null, mousedown = dragstart(d3_noop, d3.mouse, d3_behavior_dragMouseSubject, "mousemove", "mouseup"), touchstart = dragstart(d3_behavior_dragTouchId, d3.touch, d3_behavior_dragTouchSubject, "touchmove", "touchend");
1129 function drag() {
1130 this.on("mousedown.drag", mousedown).on("touchstart.drag", touchstart);
1131 }
1132 function dragstart(id, position, subject, move, end) {
1133 return function() {
1134 var that = this, target = d3.event.target, parent = that.parentNode, dispatch = event.of(that, arguments), dragged = 0, dragId = id(), dragName = ".drag" + (dragId == null ? "" : "-" + dragId), dragOffset, dragSubject = d3.select(subject()).on(move + dragName, moved).on(end + dragName, ended), dragRestore = d3_event_dragSuppress(), position0 = position(parent, dragId);
1135 if (origin) {
1136 dragOffset = origin.apply(that, arguments);
1137 dragOffset = [ dragOffset.x - position0[0], dragOffset.y - position0[1] ];
1138 } else {
1139 dragOffset = [ 0, 0 ];
1140 }
1141 dispatch({
1142 type: "dragstart"
1143 });
1144 function moved() {
1145 var position1 = position(parent, dragId), dx, dy;
1146 if (!position1) return;
1147 dx = position1[0] - position0[0];
1148 dy = position1[1] - position0[1];
1149 dragged |= dx | dy;
1150 position0 = position1;
1151 dispatch({
1152 type: "drag",
1153 x: position1[0] + dragOffset[0],
1154 y: position1[1] + dragOffset[1],
1155 dx: dx,
1156 dy: dy
1157 });
1158 }
1159 function ended() {
1160 if (!position(parent, dragId)) return;
1161 dragSubject.on(move + dragName, null).on(end + dragName, null);
1162 dragRestore(dragged && d3.event.target === target);
1163 dispatch({
1164 type: "dragend"
1165 });
1166 }
1167 };
1168 }
1169 drag.origin = function(x) {
1170 if (!arguments.length) return origin;
1171 origin = x;
1172 return drag;
1173 };
1174 return d3.rebind(drag, event, "on");
1175 };
1176 function d3_behavior_dragTouchId() {
1177 return d3.event.changedTouches[0].identifier;
1178 }
1179 function d3_behavior_dragTouchSubject() {
1180 return d3.event.target;
1181 }
1182 function d3_behavior_dragMouseSubject() {
1183 return d3_window;
1184 }
1185 var π = Math.PI, τ = 2 * π, halfπ = π / 2, ε = 1e-6, ε2 = ε * ε, d3_radians = π / 180, d3_degrees = 180 / π;
1186 function d3_sgn(x) {
1187 return x > 0 ? 1 : x < 0 ? -1 : 0;
1188 }
1189 function d3_cross2d(a, b, c) {
1190 return (b[0] - a[0]) * (c[1] - a[1]) - (b[1] - a[1]) * (c[0] - a[0]);
1191 }
1192 function d3_acos(x) {
1193 return x > 1 ? 0 : x < -1 ? π : Math.acos(x);
1194 }
1195 function d3_asin(x) {
1196 return x > 1 ? halfπ : x < -1 ? -halfπ : Math.asin(x);
1197 }
1198 function d3_sinh(x) {
1199 return ((x = Math.exp(x)) - 1 / x) / 2;
1200 }
1201 function d3_cosh(x) {
1202 return ((x = Math.exp(x)) + 1 / x) / 2;
1203 }
1204 function d3_tanh(x) {
1205 return ((x = Math.exp(2 * x)) - 1) / (x + 1);
1206 }
1207 function d3_haversin(x) {
1208 return (x = Math.sin(x / 2)) * x;
1209 }
1210 var ρ = Math.SQRT2, ρ2 = 2, ρ4 = 4;
1211 d3.interpolateZoom = function(p0, p1) {
1212 var ux0 = p0[0], uy0 = p0[1], w0 = p0[2], ux1 = p1[0], uy1 = p1[1], w1 = p1[2];
1213 var dx = ux1 - ux0, dy = uy1 - uy0, d2 = dx * dx + dy * dy, d1 = Math.sqrt(d2), b0 = (w1 * w1 - w0 * w0 + ρ4 * d2) / (2 * w0 * ρ2 * d1), b1 = (w1 * w1 - w0 * w0 - ρ4 * d2) / (2 * w1 * ρ2 * d1), r0 = Math.log(Math.sqrt(b0 * b0 + 1) - b0), r1 = Math.log(Math.sqrt(b1 * b1 + 1) - b1), dr = r1 - r0, S = (dr || Math.log(w1 / w0)) / ρ;
1214 function interpolate(t) {
1215 var s = t * S;
1216 if (dr) {
1217 var coshr0 = d3_cosh(r0), u = w0 / (ρ2 * d1) * (coshr0 * d3_tanh(ρ * s + r0) - d3_sinh(r0));
1218 return [ ux0 + u * dx, uy0 + u * dy, w0 * coshr0 / d3_cosh(ρ * s + r0) ];
1219 }
1220 return [ ux0 + t * dx, uy0 + t * dy, w0 * Math.exp(ρ * s) ];
1221 }
1222 interpolate.duration = S * 1e3;
1223 return interpolate;
1224 };
1225 d3.behavior.zoom = function() {
1226 var view = {
1227 x: 0,
1228 y: 0,
1229 k: 1
1230 }, translate0, center0, center, size = [ 960, 500 ], scaleExtent = d3_behavior_zoomInfinity, mousedown = "mousedown.zoom", mousemove = "mousemove.zoom", mouseup = "mouseup.zoom", mousewheelTimer, touchstart = "touchstart.zoom", touchtime, event = d3_eventDispatch(zoom, "zoomstart", "zoom", "zoomend"), x0, x1, y0, y1;
1231 function zoom(g) {
1232 g.on(mousedown, mousedowned).on(d3_behavior_zoomWheel + ".zoom", mousewheeled).on("dblclick.zoom", dblclicked).on(touchstart, touchstarted);
1233 }
1234 zoom.event = function(g) {
1235 g.each(function() {
1236 var dispatch = event.of(this, arguments), view1 = view;
1237 if (d3_transitionInheritId) {
1238 d3.select(this).transition().each("start.zoom", function() {
1239 view = this.__chart__ || {
1240 x: 0,
1241 y: 0,
1242 k: 1
1243 };
1244 zoomstarted(dispatch);
1245 }).tween("zoom:zoom", function() {
1246 var dx = size[0], dy = size[1], cx = dx / 2, cy = dy / 2, i = d3.interpolateZoom([ (cx - view.x) / view.k, (cy - view.y) / view.k, dx / view.k ], [ (cx - view1.x) / view1.k, (cy - view1.y) / view1.k, dx / view1.k ]);
1247 return function(t) {
1248 var l = i(t), k = dx / l[2];
1249 this.__chart__ = view = {
1250 x: cx - l[0] * k,
1251 y: cy - l[1] * k,
1252 k: k
1253 };
1254 zoomed(dispatch);
1255 };
1256 }).each("end.zoom", function() {
1257 zoomended(dispatch);
1258 });
1259 } else {
1260 this.__chart__ = view;
1261 zoomstarted(dispatch);
1262 zoomed(dispatch);
1263 zoomended(dispatch);
1264 }
1265 });
1266 };
1267 zoom.translate = function(_) {
1268 if (!arguments.length) return [ view.x, view.y ];
1269 view = {
1270 x: +_[0],
1271 y: +_[1],
1272 k: view.k
1273 };
1274 rescale();
1275 return zoom;
1276 };
1277 zoom.scale = function(_) {
1278 if (!arguments.length) return view.k;
1279 view = {
1280 x: view.x,
1281 y: view.y,
1282 k: +_
1283 };
1284 rescale();
1285 return zoom;
1286 };
1287 zoom.scaleExtent = function(_) {
1288 if (!arguments.length) return scaleExtent;
1289 scaleExtent = _ == null ? d3_behavior_zoomInfinity : [ +_[0], +_[1] ];
1290 return zoom;
1291 };
1292 zoom.center = function(_) {
1293 if (!arguments.length) return center;
1294 center = _ && [ +_[0], +_[1] ];
1295 return zoom;
1296 };
1297 zoom.size = function(_) {
1298 if (!arguments.length) return size;
1299 size = _ && [ +_[0], +_[1] ];
1300 return zoom;
1301 };
1302 zoom.x = function(z) {
1303 if (!arguments.length) return x1;
1304 x1 = z;
1305 x0 = z.copy();
1306 view = {
1307 x: 0,
1308 y: 0,
1309 k: 1
1310 };
1311 return zoom;
1312 };
1313 zoom.y = function(z) {
1314 if (!arguments.length) return y1;
1315 y1 = z;
1316 y0 = z.copy();
1317 view = {
1318 x: 0,
1319 y: 0,
1320 k: 1
1321 };
1322 return zoom;
1323 };
1324 function location(p) {
1325 return [ (p[0] - view.x) / view.k, (p[1] - view.y) / view.k ];
1326 }
1327 function point(l) {
1328 return [ l[0] * view.k + view.x, l[1] * view.k + view.y ];
1329 }
1330 function scaleTo(s) {
1331 view.k = Math.max(scaleExtent[0], Math.min(scaleExtent[1], s));
1332 }
1333 function translateTo(p, l) {
1334 l = point(l);
1335 view.x += p[0] - l[0];
1336 view.y += p[1] - l[1];
1337 }
1338 function rescale() {
1339 if (x1) x1.domain(x0.range().map(function(x) {
1340 return (x - view.x) / view.k;
1341 }).map(x0.invert));
1342 if (y1) y1.domain(y0.range().map(function(y) {
1343 return (y - view.y) / view.k;
1344 }).map(y0.invert));
1345 }
1346 function zoomstarted(dispatch) {
1347 dispatch({
1348 type: "zoomstart"
1349 });
1350 }
1351 function zoomed(dispatch) {
1352 rescale();
1353 dispatch({
1354 type: "zoom",
1355 scale: view.k,
1356 translate: [ view.x, view.y ]
1357 });
1358 }
1359 function zoomended(dispatch) {
1360 dispatch({
1361 type: "zoomend"
1362 });
1363 }
1364 function mousedowned() {
1365 var that = this, target = d3.event.target, dispatch = event.of(that, arguments), dragged = 0, subject = d3.select(d3_window).on(mousemove, moved).on(mouseup, ended), location0 = location(d3.mouse(that)), dragRestore = d3_event_dragSuppress();
1366 d3_selection_interrupt.call(that);
1367 zoomstarted(dispatch);
1368 function moved() {
1369 dragged = 1;
1370 translateTo(d3.mouse(that), location0);
1371 zoomed(dispatch);
1372 }
1373 function ended() {
1374 subject.on(mousemove, null).on(mouseup, null);
1375 dragRestore(dragged && d3.event.target === target);
1376 zoomended(dispatch);
1377 }
1378 }
1379 function touchstarted() {
1380 var that = this, dispatch = event.of(that, arguments), locations0 = {}, distance0 = 0, scale0, zoomName = ".zoom-" + d3.event.changedTouches[0].identifier, touchmove = "touchmove" + zoomName, touchend = "touchend" + zoomName, targets = [], subject = d3.select(that).on(mousedown, null).on(touchstart, started), dragRestore = d3_event_dragSuppress();
1381 d3_selection_interrupt.call(that);
1382 started();
1383 zoomstarted(dispatch);
1384 function relocate() {
1385 var touches = d3.touches(that);
1386 scale0 = view.k;
1387 touches.forEach(function(t) {
1388 if (t.identifier in locations0) locations0[t.identifier] = location(t);
1389 });
1390 return touches;
1391 }
1392 function started() {
1393 var target = d3.event.target;
1394 d3.select(target).on(touchmove, moved).on(touchend, ended);
1395 targets.push(target);
1396 var changed = d3.event.changedTouches;
1397 for (var i = 0, n = changed.length; i < n; ++i) {
1398 locations0[changed[i].identifier] = null;
1399 }
1400 var touches = relocate(), now = Date.now();
1401 if (touches.length === 1) {
1402 if (now - touchtime < 500) {
1403 var p = touches[0], l = locations0[p.identifier];
1404 scaleTo(view.k * 2);
1405 translateTo(p, l);
1406 d3_eventPreventDefault();
1407 zoomed(dispatch);
1408 }
1409 touchtime = now;
1410 } else if (touches.length > 1) {
1411 var p = touches[0], q = touches[1], dx = p[0] - q[0], dy = p[1] - q[1];
1412 distance0 = dx * dx + dy * dy;
1413 }
1414 }
1415 function moved() {
1416 var touches = d3.touches(that), p0, l0, p1, l1;
1417 for (var i = 0, n = touches.length; i < n; ++i, l1 = null) {
1418 p1 = touches[i];
1419 if (l1 = locations0[p1.identifier]) {
1420 if (l0) break;
1421 p0 = p1, l0 = l1;
1422 }
1423 }
1424 if (l1) {
1425 var distance1 = (distance1 = p1[0] - p0[0]) * distance1 + (distance1 = p1[1] - p0[1]) * distance1, scale1 = distance0 && Math.sqrt(distance1 / distance0);
1426 p0 = [ (p0[0] + p1[0]) / 2, (p0[1] + p1[1]) / 2 ];
1427 l0 = [ (l0[0] + l1[0]) / 2, (l0[1] + l1[1]) / 2 ];
1428 scaleTo(scale1 * scale0);
1429 }
1430 touchtime = null;
1431 translateTo(p0, l0);
1432 zoomed(dispatch);
1433 }
1434 function ended() {
1435 if (d3.event.touches.length) {
1436 var changed = d3.event.changedTouches;
1437 for (var i = 0, n = changed.length; i < n; ++i) {
1438 delete locations0[changed[i].identifier];
1439 }
1440 for (var identifier in locations0) {
1441 return void relocate();
1442 }
1443 }
1444 d3.selectAll(targets).on(zoomName, null);
1445 subject.on(mousedown, mousedowned).on(touchstart, touchstarted);
1446 dragRestore();
1447 zoomended(dispatch);
1448 }
1449 }
1450 function mousewheeled() {
1451 var dispatch = event.of(this, arguments);
1452 if (mousewheelTimer) clearTimeout(mousewheelTimer); else translate0 = location(center0 = center || d3.mouse(this)),
1453 d3_selection_interrupt.call(this), zoomstarted(dispatch);
1454 mousewheelTimer = setTimeout(function() {
1455 mousewheelTimer = null;
1456 zoomended(dispatch);
1457 }, 50);
1458 d3_eventPreventDefault();
1459 scaleTo(Math.pow(2, d3_behavior_zoomDelta() * .002) * view.k);
1460 translateTo(center0, translate0);
1461 zoomed(dispatch);
1462 }
1463 function dblclicked() {
1464 var dispatch = event.of(this, arguments), p = d3.mouse(this), l = location(p), k = Math.log(view.k) / Math.LN2;
1465 zoomstarted(dispatch);
1466 scaleTo(Math.pow(2, d3.event.shiftKey ? Math.ceil(k) - 1 : Math.floor(k) + 1));
1467 translateTo(p, l);
1468 zoomed(dispatch);
1469 zoomended(dispatch);
1470 }
1471 return d3.rebind(zoom, event, "on");
1472 };
1473 var d3_behavior_zoomInfinity = [ 0, Infinity ];
1474 var d3_behavior_zoomDelta, d3_behavior_zoomWheel = "onwheel" in d3_document ? (d3_behavior_zoomDelta = function() {
1475 return -d3.event.deltaY * (d3.event.deltaMode ? 120 : 1);
1476 }, "wheel") : "onmousewheel" in d3_document ? (d3_behavior_zoomDelta = function() {
1477 return d3.event.wheelDelta;
1478 }, "mousewheel") : (d3_behavior_zoomDelta = function() {
1479 return -d3.event.detail;
1480 }, "MozMousePixelScroll");
1481 d3.color = d3_color;
1482 function d3_color() {}
1483 d3_color.prototype.toString = function() {
1484 return this.rgb() + "";
1485 };
1486 d3.hsl = d3_hsl;
1487 function d3_hsl(h, s, l) {
1488 return this instanceof d3_hsl ? void (this.h = +h, this.s = +s, this.l = +l) : arguments.length < 2 ? h instanceof d3_hsl ? new d3_hsl(h.h, h.s, h.l) : d3_rgb_parse("" + h, d3_rgb_hsl, d3_hsl) : new d3_hsl(h, s, l);
1489 }
1490 var d3_hslPrototype = d3_hsl.prototype = new d3_color();
1491 d3_hslPrototype.brighter = function(k) {
1492 k = Math.pow(.7, arguments.length ? k : 1);
1493 return new d3_hsl(this.h, this.s, this.l / k);
1494 };
1495 d3_hslPrototype.darker = function(k) {
1496 k = Math.pow(.7, arguments.length ? k : 1);
1497 return new d3_hsl(this.h, this.s, k * this.l);
1498 };
1499 d3_hslPrototype.rgb = function() {
1500 return d3_hsl_rgb(this.h, this.s, this.l);
1501 };
1502 function d3_hsl_rgb(h, s, l) {
1503 var m1, m2;
1504 h = isNaN(h) ? 0 : (h %= 360) < 0 ? h + 360 : h;
1505 s = isNaN(s) ? 0 : s < 0 ? 0 : s > 1 ? 1 : s;
1506 l = l < 0 ? 0 : l > 1 ? 1 : l;
1507 m2 = l <= .5 ? l * (1 + s) : l + s - l * s;
1508 m1 = 2 * l - m2;
1509 function v(h) {
1510 if (h > 360) h -= 360; else if (h < 0) h += 360;
1511 if (h < 60) return m1 + (m2 - m1) * h / 60;
1512 if (h < 180) return m2;
1513 if (h < 240) return m1 + (m2 - m1) * (240 - h) / 60;
1514 return m1;
1515 }
1516 function vv(h) {
1517 return Math.round(v(h) * 255);
1518 }
1519 return new d3_rgb(vv(h + 120), vv(h), vv(h - 120));
1520 }
1521 d3.hcl = d3_hcl;
1522 function d3_hcl(h, c, l) {
1523 return this instanceof d3_hcl ? void (this.h = +h, this.c = +c, this.l = +l) : arguments.length < 2 ? h instanceof d3_hcl ? new d3_hcl(h.h, h.c, h.l) : h instanceof d3_lab ? d3_lab_hcl(h.l, h.a, h.b) : d3_lab_hcl((h = d3_rgb_lab((h = d3.rgb(h)).r, h.g, h.b)).l, h.a, h.b) : new d3_hcl(h, c, l);
1524 }
1525 var d3_hclPrototype = d3_hcl.prototype = new d3_color();
1526 d3_hclPrototype.brighter = function(k) {
1527 return new d3_hcl(this.h, this.c, Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)));
1528 };
1529 d3_hclPrototype.darker = function(k) {
1530 return new d3_hcl(this.h, this.c, Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)));
1531 };
1532 d3_hclPrototype.rgb = function() {
1533 return d3_hcl_lab(this.h, this.c, this.l).rgb();
1534 };
1535 function d3_hcl_lab(h, c, l) {
1536 if (isNaN(h)) h = 0;
1537 if (isNaN(c)) c = 0;
1538 return new d3_lab(l, Math.cos(h *= d3_radians) * c, Math.sin(h) * c);
1539 }
1540 d3.lab = d3_lab;
1541 function d3_lab(l, a, b) {
1542 return this instanceof d3_lab ? void (this.l = +l, this.a = +a, this.b = +b) : arguments.length < 2 ? l instanceof d3_lab ? new d3_lab(l.l, l.a, l.b) : l instanceof d3_hcl ? d3_hcl_lab(l.l, l.c, l.h) : d3_rgb_lab((l = d3_rgb(l)).r, l.g, l.b) : new d3_lab(l, a, b);
1543 }
1544 var d3_lab_K = 18;
1545 var d3_lab_X = .95047, d3_lab_Y = 1, d3_lab_Z = 1.08883;
1546 var d3_labPrototype = d3_lab.prototype = new d3_color();
1547 d3_labPrototype.brighter = function(k) {
1548 return new d3_lab(Math.min(100, this.l + d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
1549 };
1550 d3_labPrototype.darker = function(k) {
1551 return new d3_lab(Math.max(0, this.l - d3_lab_K * (arguments.length ? k : 1)), this.a, this.b);
1552 };
1553 d3_labPrototype.rgb = function() {
1554 return d3_lab_rgb(this.l, this.a, this.b);
1555 };
1556 function d3_lab_rgb(l, a, b) {
1557 var y = (l + 16) / 116, x = y + a / 500, z = y - b / 200;
1558 x = d3_lab_xyz(x) * d3_lab_X;
1559 y = d3_lab_xyz(y) * d3_lab_Y;
1560 z = d3_lab_xyz(z) * d3_lab_Z;
1561 return new d3_rgb(d3_xyz_rgb(3.2404542 * x - 1.5371385 * y - .4985314 * z), d3_xyz_rgb(-.969266 * x + 1.8760108 * y + .041556 * z), d3_xyz_rgb(.0556434 * x - .2040259 * y + 1.0572252 * z));
1562 }
1563 function d3_lab_hcl(l, a, b) {
1564 return l > 0 ? new d3_hcl(Math.atan2(b, a) * d3_degrees, Math.sqrt(a * a + b * b), l) : new d3_hcl(NaN, NaN, l);
1565 }
1566 function d3_lab_xyz(x) {
1567 return x > .206893034 ? x * x * x : (x - 4 / 29) / 7.787037;
1568 }
1569 function d3_xyz_lab(x) {
1570 return x > .008856 ? Math.pow(x, 1 / 3) : 7.787037 * x + 4 / 29;
1571 }
1572 function d3_xyz_rgb(r) {
1573 return Math.round(255 * (r <= .00304 ? 12.92 * r : 1.055 * Math.pow(r, 1 / 2.4) - .055));
1574 }
1575 d3.rgb = d3_rgb;
1576 function d3_rgb(r, g, b) {
1577 return this instanceof d3_rgb ? void (this.r = ~~r, this.g = ~~g, this.b = ~~b) : arguments.length < 2 ? r instanceof d3_rgb ? new d3_rgb(r.r, r.g, r.b) : d3_rgb_parse("" + r, d3_rgb, d3_hsl_rgb) : new d3_rgb(r, g, b);
1578 }
1579 function d3_rgbNumber(value) {
1580 return new d3_rgb(value >> 16, value >> 8 & 255, value & 255);
1581 }
1582 function d3_rgbString(value) {
1583 return d3_rgbNumber(value) + "";
1584 }
1585 var d3_rgbPrototype = d3_rgb.prototype = new d3_color();
1586 d3_rgbPrototype.brighter = function(k) {
1587 k = Math.pow(.7, arguments.length ? k : 1);
1588 var r = this.r, g = this.g, b = this.b, i = 30;
1589 if (!r && !g && !b) return new d3_rgb(i, i, i);
1590 if (r && r < i) r = i;
1591 if (g && g < i) g = i;
1592 if (b && b < i) b = i;
1593 return new d3_rgb(Math.min(255, r / k), Math.min(255, g / k), Math.min(255, b / k));
1594 };
1595 d3_rgbPrototype.darker = function(k) {
1596 k = Math.pow(.7, arguments.length ? k : 1);
1597 return new d3_rgb(k * this.r, k * this.g, k * this.b);
1598 };
1599 d3_rgbPrototype.hsl = function() {
1600 return d3_rgb_hsl(this.r, this.g, this.b);
1601 };
1602 d3_rgbPrototype.toString = function() {
1603 return "#" + d3_rgb_hex(this.r) + d3_rgb_hex(this.g) + d3_rgb_hex(this.b);
1604 };
1605 function d3_rgb_hex(v) {
1606 return v < 16 ? "0" + Math.max(0, v).toString(16) : Math.min(255, v).toString(16);
1607 }
1608 function d3_rgb_parse(format, rgb, hsl) {
1609 var r = 0, g = 0, b = 0, m1, m2, color;
1610 m1 = /([a-z]+)\((.*)\)/i.exec(format);
1611 if (m1) {
1612 m2 = m1[2].split(",");
1613 switch (m1[1]) {
1614 case "hsl":
1615 {
1616 return hsl(parseFloat(m2[0]), parseFloat(m2[1]) / 100, parseFloat(m2[2]) / 100);
1617 }
1618
1619 case "rgb":
1620 {
1621 return rgb(d3_rgb_parseNumber(m2[0]), d3_rgb_parseNumber(m2[1]), d3_rgb_parseNumber(m2[2]));
1622 }
1623 }
1624 }
1625 if (color = d3_rgb_names.get(format)) return rgb(color.r, color.g, color.b);
1626 if (format != null && format.charAt(0) === "#" && !isNaN(color = parseInt(format.substring(1), 16))) {
1627 if (format.length === 4) {
1628 r = (color & 3840) >> 4;
1629 r = r >> 4 | r;
1630 g = color & 240;
1631 g = g >> 4 | g;
1632 b = color & 15;
1633 b = b << 4 | b;
1634 } else if (format.length === 7) {
1635 r = (color & 16711680) >> 16;
1636 g = (color & 65280) >> 8;
1637 b = color & 255;
1638 }
1639 }
1640 return rgb(r, g, b);
1641 }
1642 function d3_rgb_hsl(r, g, b) {
1643 var min = Math.min(r /= 255, g /= 255, b /= 255), max = Math.max(r, g, b), d = max - min, h, s, l = (max + min) / 2;
1644 if (d) {
1645 s = l < .5 ? d / (max + min) : d / (2 - max - min);
1646 if (r == max) h = (g - b) / d + (g < b ? 6 : 0); else if (g == max) h = (b - r) / d + 2; else h = (r - g) / d + 4;
1647 h *= 60;
1648 } else {
1649 h = NaN;
1650 s = l > 0 && l < 1 ? 0 : h;
1651 }
1652 return new d3_hsl(h, s, l);
1653 }
1654 function d3_rgb_lab(r, g, b) {
1655 r = d3_rgb_xyz(r);
1656 g = d3_rgb_xyz(g);
1657 b = d3_rgb_xyz(b);
1658 var x = d3_xyz_lab((.4124564 * r + .3575761 * g + .1804375 * b) / d3_lab_X), y = d3_xyz_lab((.2126729 * r + .7151522 * g + .072175 * b) / d3_lab_Y), z = d3_xyz_lab((.0193339 * r + .119192 * g + .9503041 * b) / d3_lab_Z);
1659 return d3_lab(116 * y - 16, 500 * (x - y), 200 * (y - z));
1660 }
1661 function d3_rgb_xyz(r) {
1662 return (r /= 255) <= .04045 ? r / 12.92 : Math.pow((r + .055) / 1.055, 2.4);
1663 }
1664 function d3_rgb_parseNumber(c) {
1665 var f = parseFloat(c);
1666 return c.charAt(c.length - 1) === "%" ? Math.round(f * 2.55) : f;
1667 }
1668 var d3_rgb_names = d3.map({
1669 aliceblue: 15792383,
1670 antiquewhite: 16444375,
1671 aqua: 65535,
1672 aquamarine: 8388564,
1673 azure: 15794175,
1674 beige: 16119260,
1675 bisque: 16770244,
1676 black: 0,
1677 blanchedalmond: 16772045,
1678 blue: 255,
1679 blueviolet: 9055202,
1680 brown: 10824234,
1681 burlywood: 14596231,
1682 cadetblue: 6266528,
1683 chartreuse: 8388352,
1684 chocolate: 13789470,
1685 coral: 16744272,
1686 cornflowerblue: 6591981,
1687 cornsilk: 16775388,
1688 crimson: 14423100,
1689 cyan: 65535,
1690 darkblue: 139,
1691 darkcyan: 35723,
1692 darkgoldenrod: 12092939,
1693 darkgray: 11119017,
1694 darkgreen: 25600,
1695 darkgrey: 11119017,
1696 darkkhaki: 12433259,
1697 darkmagenta: 9109643,
1698 darkolivegreen: 5597999,
1699 darkorange: 16747520,
1700 darkorchid: 10040012,
1701 darkred: 9109504,
1702 darksalmon: 15308410,
1703 darkseagreen: 9419919,
1704 darkslateblue: 4734347,
1705 darkslategray: 3100495,
1706 darkslategrey: 3100495,
1707 darkturquoise: 52945,
1708 darkviolet: 9699539,
1709 deeppink: 16716947,
1710 deepskyblue: 49151,
1711 dimgray: 6908265,
1712 dimgrey: 6908265,
1713 dodgerblue: 2003199,
1714 firebrick: 11674146,
1715 floralwhite: 16775920,
1716 forestgreen: 2263842,
1717 fuchsia: 16711935,
1718 gainsboro: 14474460,
1719 ghostwhite: 16316671,
1720 gold: 16766720,
1721 goldenrod: 14329120,
1722 gray: 8421504,
1723 green: 32768,
1724 greenyellow: 11403055,
1725 grey: 8421504,
1726 honeydew: 15794160,
1727 hotpink: 16738740,
1728 indianred: 13458524,
1729 indigo: 4915330,
1730 ivory: 16777200,
1731 khaki: 15787660,
1732 lavender: 15132410,
1733 lavenderblush: 16773365,
1734 lawngreen: 8190976,
1735 lemonchiffon: 16775885,
1736 lightblue: 11393254,
1737 lightcoral: 15761536,
1738 lightcyan: 14745599,
1739 lightgoldenrodyellow: 16448210,
1740 lightgray: 13882323,
1741 lightgreen: 9498256,
1742 lightgrey: 13882323,
1743 lightpink: 16758465,
1744 lightsalmon: 16752762,
1745 lightseagreen: 2142890,
1746 lightskyblue: 8900346,
1747 lightslategray: 7833753,
1748 lightslategrey: 7833753,
1749 lightsteelblue: 11584734,
1750 lightyellow: 16777184,
1751 lime: 65280,
1752 limegreen: 3329330,
1753 linen: 16445670,
1754 magenta: 16711935,
1755 maroon: 8388608,
1756 mediumaquamarine: 6737322,
1757 mediumblue: 205,
1758 mediumorchid: 12211667,
1759 mediumpurple: 9662683,
1760 mediumseagreen: 3978097,
1761 mediumslateblue: 8087790,
1762 mediumspringgreen: 64154,
1763 mediumturquoise: 4772300,
1764 mediumvioletred: 13047173,
1765 midnightblue: 1644912,
1766 mintcream: 16121850,
1767 mistyrose: 16770273,
1768 moccasin: 16770229,
1769 navajowhite: 16768685,
1770 navy: 128,
1771 oldlace: 16643558,
1772 olive: 8421376,
1773 olivedrab: 7048739,
1774 orange: 16753920,
1775 orangered: 16729344,
1776 orchid: 14315734,
1777 palegoldenrod: 15657130,
1778 palegreen: 10025880,
1779 paleturquoise: 11529966,
1780 palevioletred: 14381203,
1781 papayawhip: 16773077,
1782 peachpuff: 16767673,
1783 peru: 13468991,
1784 pink: 16761035,
1785 plum: 14524637,
1786 powderblue: 11591910,
1787 purple: 8388736,
1788 red: 16711680,
1789 rosybrown: 12357519,
1790 royalblue: 4286945,
1791 saddlebrown: 9127187,
1792 salmon: 16416882,
1793 sandybrown: 16032864,
1794 seagreen: 3050327,
1795 seashell: 16774638,
1796 sienna: 10506797,
1797 silver: 12632256,
1798 skyblue: 8900331,
1799 slateblue: 6970061,
1800 slategray: 7372944,
1801 slategrey: 7372944,
1802 snow: 16775930,
1803 springgreen: 65407,
1804 steelblue: 4620980,
1805 tan: 13808780,
1806 teal: 32896,
1807 thistle: 14204888,
1808 tomato: 16737095,
1809 turquoise: 4251856,
1810 violet: 15631086,
1811 wheat: 16113331,
1812 white: 16777215,
1813 whitesmoke: 16119285,
1814 yellow: 16776960,
1815 yellowgreen: 10145074
1816 });
1817 d3_rgb_names.forEach(function(key, value) {
1818 d3_rgb_names.set(key, d3_rgbNumber(value));
1819 });
1820 function d3_functor(v) {
1821 return typeof v === "function" ? v : function() {
1822 return v;
1823 };
1824 }
1825 d3.functor = d3_functor;
1826 function d3_identity(d) {
1827 return d;
1828 }
1829 d3.xhr = d3_xhrType(d3_identity);
1830 function d3_xhrType(response) {
1831 return function(url, mimeType, callback) {
1832 if (arguments.length === 2 && typeof mimeType === "function") callback = mimeType,
1833 mimeType = null;
1834 return d3_xhr(url, mimeType, response, callback);
1835 };
1836 }
1837 function d3_xhr(url, mimeType, response, callback) {
1838 var xhr = {}, dispatch = d3.dispatch("beforesend", "progress", "load", "error"), headers = {}, request = new XMLHttpRequest(), responseType = null;
1839 if (d3_window.XDomainRequest && !("withCredentials" in request) && /^(http(s)?:)?\/\//.test(url)) request = new XDomainRequest();
1840 "onload" in request ? request.onload = request.onerror = respond : request.onreadystatechange = function() {
1841 request.readyState > 3 && respond();
1842 };
1843 function respond() {
1844 var status = request.status, result;
1845 if (!status && request.responseText || status >= 200 && status < 300 || status === 304) {
1846 try {
1847 result = response.call(xhr, request);
1848 } catch (e) {
1849 dispatch.error.call(xhr, e);
1850 return;
1851 }
1852 dispatch.load.call(xhr, result);
1853 } else {
1854 dispatch.error.call(xhr, request);
1855 }
1856 }
1857 request.onprogress = function(event) {
1858 var o = d3.event;
1859 d3.event = event;
1860 try {
1861 dispatch.progress.call(xhr, request);
1862 } finally {
1863 d3.event = o;
1864 }
1865 };
1866 xhr.header = function(name, value) {
1867 name = (name + "").toLowerCase();
1868 if (arguments.length < 2) return headers[name];
1869 if (value == null) delete headers[name]; else headers[name] = value + "";
1870 return xhr;
1871 };
1872 xhr.mimeType = function(value) {
1873 if (!arguments.length) return mimeType;
1874 mimeType = value == null ? null : value + "";
1875 return xhr;
1876 };
1877 xhr.responseType = function(value) {
1878 if (!arguments.length) return responseType;
1879 responseType = value;
1880 return xhr;
1881 };
1882 xhr.response = function(value) {
1883 response = value;
1884 return xhr;
1885 };
1886 [ "get", "post" ].forEach(function(method) {
1887 xhr[method] = function() {
1888 return xhr.send.apply(xhr, [ method ].concat(d3_array(arguments)));
1889 };
1890 });
1891 xhr.send = function(method, data, callback) {
1892 if (arguments.length === 2 && typeof data === "function") callback = data, data = null;
1893 request.open(method, url, true);
1894 if (mimeType != null && !("accept" in headers)) headers["accept"] = mimeType + ",*/*";
1895 if (request.setRequestHeader) for (var name in headers) request.setRequestHeader(name, headers[name]);
1896 if (mimeType != null && request.overrideMimeType) request.overrideMimeType(mimeType);
1897 if (responseType != null) request.responseType = responseType;
1898 if (callback != null) xhr.on("error", callback).on("load", function(request) {
1899 callback(null, request);
1900 });
1901 dispatch.beforesend.call(xhr, request);
1902 request.send(data == null ? null : data);
1903 return xhr;
1904 };
1905 xhr.abort = function() {
1906 request.abort();
1907 return xhr;
1908 };
1909 d3.rebind(xhr, dispatch, "on");
1910 return callback == null ? xhr : xhr.get(d3_xhr_fixCallback(callback));
1911 }
1912 function d3_xhr_fixCallback(callback) {
1913 return callback.length === 1 ? function(error, request) {
1914 callback(error == null ? request : null);
1915 } : callback;
1916 }
1917 d3.dsv = function(delimiter, mimeType) {
1918 var reFormat = new RegExp('["' + delimiter + "\n]"), delimiterCode = delimiter.charCodeAt(0);
1919 function dsv(url, row, callback) {
1920 if (arguments.length < 3) callback = row, row = null;
1921 var xhr = d3_xhr(url, mimeType, row == null ? response : typedResponse(row), callback);
1922 xhr.row = function(_) {
1923 return arguments.length ? xhr.response((row = _) == null ? response : typedResponse(_)) : row;
1924 };
1925 return xhr;
1926 }
1927 function response(request) {
1928 return dsv.parse(request.responseText);
1929 }
1930 function typedResponse(f) {
1931 return function(request) {
1932 return dsv.parse(request.responseText, f);
1933 };
1934 }
1935 dsv.parse = function(text, f) {
1936 var o;
1937 return dsv.parseRows(text, function(row, i) {
1938 if (o) return o(row, i - 1);
1939 var a = new Function("d", "return {" + row.map(function(name, i) {
1940 return JSON.stringify(name) + ": d[" + i + "]";
1941 }).join(",") + "}");
1942 o = f ? function(row, i) {
1943 return f(a(row), i);
1944 } : a;
1945 });
1946 };
1947 dsv.parseRows = function(text, f) {
1948 var EOL = {}, EOF = {}, rows = [], N = text.length, I = 0, n = 0, t, eol;
1949 function token() {
1950 if (I >= N) return EOF;
1951 if (eol) return eol = false, EOL;
1952 var j = I;
1953 if (text.charCodeAt(j) === 34) {
1954 var i = j;
1955 while (i++ < N) {
1956 if (text.charCodeAt(i) === 34) {
1957 if (text.charCodeAt(i + 1) !== 34) break;
1958 ++i;
1959 }
1960 }
1961 I = i + 2;
1962 var c = text.charCodeAt(i + 1);
1963 if (c === 13) {
1964 eol = true;
1965 if (text.charCodeAt(i + 2) === 10) ++I;
1966 } else if (c === 10) {
1967 eol = true;
1968 }
1969 return text.substring(j + 1, i).replace(/""/g, '"');
1970 }
1971 while (I < N) {
1972 var c = text.charCodeAt(I++), k = 1;
1973 if (c === 10) eol = true; else if (c === 13) {
1974 eol = true;
1975 if (text.charCodeAt(I) === 10) ++I, ++k;
1976 } else if (c !== delimiterCode) continue;
1977 return text.substring(j, I - k);
1978 }
1979 return text.substring(j);
1980 }
1981 while ((t = token()) !== EOF) {
1982 var a = [];
1983 while (t !== EOL && t !== EOF) {
1984 a.push(t);
1985 t = token();
1986 }
1987 if (f && !(a = f(a, n++))) continue;
1988 rows.push(a);
1989 }
1990 return rows;
1991 };
1992 dsv.format = function(rows) {
1993 if (Array.isArray(rows[0])) return dsv.formatRows(rows);
1994 var fieldSet = new d3_Set(), fields = [];
1995 rows.forEach(function(row) {
1996 for (var field in row) {
1997 if (!fieldSet.has(field)) {
1998 fields.push(fieldSet.add(field));
1999 }
2000 }
2001 });
2002 return [ fields.map(formatValue).join(delimiter) ].concat(rows.map(function(row) {
2003 return fields.map(function(field) {
2004 return formatValue(row[field]);
2005 }).join(delimiter);
2006 })).join("\n");
2007 };
2008 dsv.formatRows = function(rows) {
2009 return rows.map(formatRow).join("\n");
2010 };
2011 function formatRow(row) {
2012 return row.map(formatValue).join(delimiter);
2013 }
2014 function formatValue(text) {
2015 return reFormat.test(text) ? '"' + text.replace(/\"/g, '""') + '"' : text;
2016 }
2017 return dsv;
2018 };
2019 d3.csv = d3.dsv(",", "text/csv");
2020 d3.tsv = d3.dsv(" ", "text/tab-separated-values");
2021 d3.touch = function(container, touches, identifier) {
2022 if (arguments.length < 3) identifier = touches, touches = d3_eventSource().changedTouches;
2023 if (touches) for (var i = 0, n = touches.length, touch; i < n; ++i) {
2024 if ((touch = touches[i]).identifier === identifier) {
2025 return d3_mousePoint(container, touch);
2026 }
2027 }
2028 };
2029 var d3_timer_queueHead, d3_timer_queueTail, d3_timer_interval, d3_timer_timeout, d3_timer_active, d3_timer_frame = d3_window[d3_vendorSymbol(d3_window, "requestAnimationFrame")] || function(callback) {
2030 setTimeout(callback, 17);
2031 };
2032 d3.timer = function(callback, delay, then) {
2033 var n = arguments.length;
2034 if (n < 2) delay = 0;
2035 if (n < 3) then = Date.now();
2036 var time = then + delay, timer = {
2037 c: callback,
2038 t: time,
2039 f: false,
2040 n: null
2041 };
2042 if (d3_timer_queueTail) d3_timer_queueTail.n = timer; else d3_timer_queueHead = timer;
2043 d3_timer_queueTail = timer;
2044 if (!d3_timer_interval) {
2045 d3_timer_timeout = clearTimeout(d3_timer_timeout);
2046 d3_timer_interval = 1;
2047 d3_timer_frame(d3_timer_step);
2048 }
2049 };
2050 function d3_timer_step() {
2051 var now = d3_timer_mark(), delay = d3_timer_sweep() - now;
2052 if (delay > 24) {
2053 if (isFinite(delay)) {
2054 clearTimeout(d3_timer_timeout);
2055 d3_timer_timeout = setTimeout(d3_timer_step, delay);
2056 }
2057 d3_timer_interval = 0;
2058 } else {
2059 d3_timer_interval = 1;
2060 d3_timer_frame(d3_timer_step);
2061 }
2062 }
2063 d3.timer.flush = function() {
2064 d3_timer_mark();
2065 d3_timer_sweep();
2066 };
2067 function d3_timer_mark() {
2068 var now = Date.now();
2069 d3_timer_active = d3_timer_queueHead;
2070 while (d3_timer_active) {
2071 if (now >= d3_timer_active.t) d3_timer_active.f = d3_timer_active.c(now - d3_timer_active.t);
2072 d3_timer_active = d3_timer_active.n;
2073 }
2074 return now;
2075 }
2076 function d3_timer_sweep() {
2077 var t0, t1 = d3_timer_queueHead, time = Infinity;
2078 while (t1) {
2079 if (t1.f) {
2080 t1 = t0 ? t0.n = t1.n : d3_timer_queueHead = t1.n;
2081 } else {
2082 if (t1.t < time) time = t1.t;
2083 t1 = (t0 = t1).n;
2084 }
2085 }
2086 d3_timer_queueTail = t0;
2087 return time;
2088 }
2089 function d3_format_precision(x, p) {
2090 return p - (x ? Math.ceil(Math.log(x) / Math.LN10) : 1);
2091 }
2092 d3.round = function(x, n) {
2093 return n ? Math.round(x * (n = Math.pow(10, n))) / n : Math.round(x);
2094 };
2095 var d3_formatPrefixes = [ "y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y" ].map(d3_formatPrefix);
2096 d3.formatPrefix = function(value, precision) {
2097 var i = 0;
2098 if (value) {
2099 if (value < 0) value *= -1;
2100 if (precision) value = d3.round(value, d3_format_precision(value, precision));
2101 i = 1 + Math.floor(1e-12 + Math.log(value) / Math.LN10);
2102 i = Math.max(-24, Math.min(24, Math.floor((i - 1) / 3) * 3));
2103 }
2104 return d3_formatPrefixes[8 + i / 3];
2105 };
2106 function d3_formatPrefix(d, i) {
2107 var k = Math.pow(10, abs(8 - i) * 3);
2108 return {
2109 scale: i > 8 ? function(d) {
2110 return d / k;
2111 } : function(d) {
2112 return d * k;
2113 },
2114 symbol: d
2115 };
2116 }
2117 function d3_locale_numberFormat(locale) {
2118 var locale_decimal = locale.decimal, locale_thousands = locale.thousands, locale_grouping = locale.grouping, locale_currency = locale.currency, formatGroup = locale_grouping ? function(value) {
2119 var i = value.length, t = [], j = 0, g = locale_grouping[0];
2120 while (i > 0 && g > 0) {
2121 t.push(value.substring(i -= g, i + g));
2122 g = locale_grouping[j = (j + 1) % locale_grouping.length];
2123 }
2124 return t.reverse().join(locale_thousands);
2125 } : d3_identity;
2126 return function(specifier) {
2127 var match = d3_format_re.exec(specifier), fill = match[1] || " ", align = match[2] || ">", sign = match[3] || "", symbol = match[4] || "", zfill = match[5], width = +match[6], comma = match[7], precision = match[8], type = match[9], scale = 1, prefix = "", suffix = "", integer = false;
2128 if (precision) precision = +precision.substring(1);
2129 if (zfill || fill === "0" && align === "=") {
2130 zfill = fill = "0";
2131 align = "=";
2132 if (comma) width -= Math.floor((width - 1) / 4);
2133 }
2134 switch (type) {
2135 case "n":
2136 comma = true;
2137 type = "g";
2138 break;
2139
2140 case "%":
2141 scale = 100;
2142 suffix = "%";
2143 type = "f";
2144 break;
2145
2146 case "p":
2147 scale = 100;
2148 suffix = "%";
2149 type = "r";
2150 break;
2151
2152 case "b":
2153 case "o":
2154 case "x":
2155 case "X":
2156 if (symbol === "#") prefix = "0" + type.toLowerCase();
2157
2158 case "c":
2159 case "d":
2160 integer = true;
2161 precision = 0;
2162 break;
2163
2164 case "s":
2165 scale = -1;
2166 type = "r";
2167 break;
2168 }
2169 if (symbol === "$") prefix = locale_currency[0], suffix = locale_currency[1];
2170 if (type == "r" && !precision) type = "g";
2171 if (precision != null) {
2172 if (type == "g") precision = Math.max(1, Math.min(21, precision)); else if (type == "e" || type == "f") precision = Math.max(0, Math.min(20, precision));
2173 }
2174 type = d3_format_types.get(type) || d3_format_typeDefault;
2175 var zcomma = zfill && comma;
2176 return function(value) {
2177 var fullSuffix = suffix;
2178 if (integer && value % 1) return "";
2179 var negative = value < 0 || value === 0 && 1 / value < 0 ? (value = -value, "-") : sign;
2180 if (scale < 0) {
2181 var unit = d3.formatPrefix(value, precision);
2182 value = unit.scale(value);
2183 fullSuffix = unit.symbol + suffix;
2184 } else {
2185 value *= scale;
2186 }
2187 value = type(value, precision);
2188 var i = value.lastIndexOf("."), before = i < 0 ? value : value.substring(0, i), after = i < 0 ? "" : locale_decimal + value.substring(i + 1);
2189 if (!zfill && comma) before = formatGroup(before);
2190 var length = prefix.length + before.length + after.length + (zcomma ? 0 : negative.length), padding = length < width ? new Array(length = width - length + 1).join(fill) : "";
2191 if (zcomma) before = formatGroup(padding + before);
2192 negative += prefix;
2193 value = before + after;
2194 return (align === "<" ? negative + value + padding : align === ">" ? padding + negative + value : align === "^" ? padding.substring(0, length >>= 1) + negative + value + padding.substring(length) : negative + (zcomma ? value : padding + value)) + fullSuffix;
2195 };
2196 };
2197 }
2198 var d3_format_re = /(?:([^{])?([<>=^]))?([+\- ])?([$#])?(0)?(\d+)?(,)?(\.-?\d+)?([a-z%])?/i;
2199 var d3_format_types = d3.map({
2200 b: function(x) {
2201 return x.toString(2);
2202 },
2203 c: function(x) {
2204 return String.fromCharCode(x);
2205 },
2206 o: function(x) {
2207 return x.toString(8);
2208 },
2209 x: function(x) {
2210 return x.toString(16);
2211 },
2212 X: function(x) {
2213 return x.toString(16).toUpperCase();
2214 },
2215 g: function(x, p) {
2216 return x.toPrecision(p);
2217 },
2218 e: function(x, p) {
2219 return x.toExponential(p);
2220 },
2221 f: function(x, p) {
2222 return x.toFixed(p);
2223 },
2224 r: function(x, p) {
2225 return (x = d3.round(x, d3_format_precision(x, p))).toFixed(Math.max(0, Math.min(20, d3_format_precision(x * (1 + 1e-15), p))));
2226 }
2227 });
2228 function d3_format_typeDefault(x) {
2229 return x + "";
2230 }
2231 var d3_time = d3.time = {}, d3_date = Date;
2232 function d3_date_utc() {
2233 this._ = new Date(arguments.length > 1 ? Date.UTC.apply(this, arguments) : arguments[0]);
2234 }
2235 d3_date_utc.prototype = {
2236 getDate: function() {
2237 return this._.getUTCDate();
2238 },
2239 getDay: function() {
2240 return this._.getUTCDay();
2241 },
2242 getFullYear: function() {
2243 return this._.getUTCFullYear();
2244 },
2245 getHours: function() {
2246 return this._.getUTCHours();
2247 },
2248 getMilliseconds: function() {
2249 return this._.getUTCMilliseconds();
2250 },
2251 getMinutes: function() {
2252 return this._.getUTCMinutes();
2253 },
2254 getMonth: function() {
2255 return this._.getUTCMonth();
2256 },
2257 getSeconds: function() {
2258 return this._.getUTCSeconds();
2259 },
2260 getTime: function() {
2261 return this._.getTime();
2262 },
2263 getTimezoneOffset: function() {
2264 return 0;
2265 },
2266 valueOf: function() {
2267 return this._.valueOf();
2268 },
2269 setDate: function() {
2270 d3_time_prototype.setUTCDate.apply(this._, arguments);
2271 },
2272 setDay: function() {
2273 d3_time_prototype.setUTCDay.apply(this._, arguments);
2274 },
2275 setFullYear: function() {
2276 d3_time_prototype.setUTCFullYear.apply(this._, arguments);
2277 },
2278 setHours: function() {
2279 d3_time_prototype.setUTCHours.apply(this._, arguments);
2280 },
2281 setMilliseconds: function() {
2282 d3_time_prototype.setUTCMilliseconds.apply(this._, arguments);
2283 },
2284 setMinutes: function() {
2285 d3_time_prototype.setUTCMinutes.apply(this._, arguments);
2286 },
2287 setMonth: function() {
2288 d3_time_prototype.setUTCMonth.apply(this._, arguments);
2289 },
2290 setSeconds: function() {
2291 d3_time_prototype.setUTCSeconds.apply(this._, arguments);
2292 },
2293 setTime: function() {
2294 d3_time_prototype.setTime.apply(this._, arguments);
2295 }
2296 };
2297 var d3_time_prototype = Date.prototype;
2298 function d3_time_interval(local, step, number) {
2299 function round(date) {
2300 var d0 = local(date), d1 = offset(d0, 1);
2301 return date - d0 < d1 - date ? d0 : d1;
2302 }
2303 function ceil(date) {
2304 step(date = local(new d3_date(date - 1)), 1);
2305 return date;
2306 }
2307 function offset(date, k) {
2308 step(date = new d3_date(+date), k);
2309 return date;
2310 }
2311 function range(t0, t1, dt) {
2312 var time = ceil(t0), times = [];
2313 if (dt > 1) {
2314 while (time < t1) {
2315 if (!(number(time) % dt)) times.push(new Date(+time));
2316 step(time, 1);
2317 }
2318 } else {
2319 while (time < t1) times.push(new Date(+time)), step(time, 1);
2320 }
2321 return times;
2322 }
2323 function range_utc(t0, t1, dt) {
2324 try {
2325 d3_date = d3_date_utc;
2326 var utc = new d3_date_utc();
2327 utc._ = t0;
2328 return range(utc, t1, dt);
2329 } finally {
2330 d3_date = Date;
2331 }
2332 }
2333 local.floor = local;
2334 local.round = round;
2335 local.ceil = ceil;
2336 local.offset = offset;
2337 local.range = range;
2338 var utc = local.utc = d3_time_interval_utc(local);
2339 utc.floor = utc;
2340 utc.round = d3_time_interval_utc(round);
2341 utc.ceil = d3_time_interval_utc(ceil);
2342 utc.offset = d3_time_interval_utc(offset);
2343 utc.range = range_utc;
2344 return local;
2345 }
2346 function d3_time_interval_utc(method) {
2347 return function(date, k) {
2348 try {
2349 d3_date = d3_date_utc;
2350 var utc = new d3_date_utc();
2351 utc._ = date;
2352 return method(utc, k)._;
2353 } finally {
2354 d3_date = Date;
2355 }
2356 };
2357 }
2358 d3_time.year = d3_time_interval(function(date) {
2359 date = d3_time.day(date);
2360 date.setMonth(0, 1);
2361 return date;
2362 }, function(date, offset) {
2363 date.setFullYear(date.getFullYear() + offset);
2364 }, function(date) {
2365 return date.getFullYear();
2366 });
2367 d3_time.years = d3_time.year.range;
2368 d3_time.years.utc = d3_time.year.utc.range;
2369 d3_time.day = d3_time_interval(function(date) {
2370 var day = new d3_date(2e3, 0);
2371 day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());
2372 return day;
2373 }, function(date, offset) {
2374 date.setDate(date.getDate() + offset);
2375 }, function(date) {
2376 return date.getDate() - 1;
2377 });
2378 d3_time.days = d3_time.day.range;
2379 d3_time.days.utc = d3_time.day.utc.range;
2380 d3_time.dayOfYear = function(date) {
2381 var year = d3_time.year(date);
2382 return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);
2383 };
2384 [ "sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday" ].forEach(function(day, i) {
2385 i = 7 - i;
2386 var interval = d3_time[day] = d3_time_interval(function(date) {
2387 (date = d3_time.day(date)).setDate(date.getDate() - (date.getDay() + i) % 7);
2388 return date;
2389 }, function(date, offset) {
2390 date.setDate(date.getDate() + Math.floor(offset) * 7);
2391 }, function(date) {
2392 var day = d3_time.year(date).getDay();
2393 return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7) - (day !== i);
2394 });
2395 d3_time[day + "s"] = interval.range;
2396 d3_time[day + "s"].utc = interval.utc.range;
2397 d3_time[day + "OfYear"] = function(date) {
2398 var day = d3_time.year(date).getDay();
2399 return Math.floor((d3_time.dayOfYear(date) + (day + i) % 7) / 7);
2400 };
2401 });
2402 d3_time.week = d3_time.sunday;
2403 d3_time.weeks = d3_time.sunday.range;
2404 d3_time.weeks.utc = d3_time.sunday.utc.range;
2405 d3_time.weekOfYear = d3_time.sundayOfYear;
2406 function d3_locale_timeFormat(locale) {
2407 var locale_dateTime = locale.dateTime, locale_date = locale.date, locale_time = locale.time, locale_periods = locale.periods, locale_days = locale.days, locale_shortDays = locale.shortDays, locale_months = locale.months, locale_shortMonths = locale.shortMonths;
2408 function d3_time_format(template) {
2409 var n = template.length;
2410 function format(date) {
2411 var string = [], i = -1, j = 0, c, p, f;
2412 while (++i < n) {
2413 if (template.charCodeAt(i) === 37) {
2414 string.push(template.substring(j, i));
2415 if ((p = d3_time_formatPads[c = template.charAt(++i)]) != null) c = template.charAt(++i);
2416 if (f = d3_time_formats[c]) c = f(date, p == null ? c === "e" ? " " : "0" : p);
2417 string.push(c);
2418 j = i + 1;
2419 }
2420 }
2421 string.push(template.substring(j, i));
2422 return string.join("");
2423 }
2424 format.parse = function(string) {
2425 var d = {
2426 y: 1900,
2427 m: 0,
2428 d: 1,
2429 H: 0,
2430 M: 0,
2431 S: 0,
2432 L: 0,
2433 Z: null
2434 }, i = d3_time_parse(d, template, string, 0);
2435 if (i != string.length) return null;
2436 if ("p" in d) d.H = d.H % 12 + d.p * 12;
2437 var localZ = d.Z != null && d3_date !== d3_date_utc, date = new (localZ ? d3_date_utc : d3_date)();
2438 if ("j" in d) date.setFullYear(d.y, 0, d.j); else if ("w" in d && ("W" in d || "U" in d)) {
2439 date.setFullYear(d.y, 0, 1);
2440 date.setFullYear(d.y, 0, "W" in d ? (d.w + 6) % 7 + d.W * 7 - (date.getDay() + 5) % 7 : d.w + d.U * 7 - (date.getDay() + 6) % 7);
2441 } else date.setFullYear(d.y, d.m, d.d);
2442 date.setHours(d.H + Math.floor(d.Z / 100), d.M + d.Z % 100, d.S, d.L);
2443 return localZ ? date._ : date;
2444 };
2445 format.toString = function() {
2446 return template;
2447 };
2448 return format;
2449 }
2450 function d3_time_parse(date, template, string, j) {
2451 var c, p, t, i = 0, n = template.length, m = string.length;
2452 while (i < n) {
2453 if (j >= m) return -1;
2454 c = template.charCodeAt(i++);
2455 if (c === 37) {
2456 t = template.charAt(i++);
2457 p = d3_time_parsers[t in d3_time_formatPads ? template.charAt(i++) : t];
2458 if (!p || (j = p(date, string, j)) < 0) return -1;
2459 } else if (c != string.charCodeAt(j++)) {
2460 return -1;
2461 }
2462 }
2463 return j;
2464 }
2465 d3_time_format.utc = function(template) {
2466 var local = d3_time_format(template);
2467 function format(date) {
2468 try {
2469 d3_date = d3_date_utc;
2470 var utc = new d3_date();
2471 utc._ = date;
2472 return local(utc);
2473 } finally {
2474 d3_date = Date;
2475 }
2476 }
2477 format.parse = function(string) {
2478 try {
2479 d3_date = d3_date_utc;
2480 var date = local.parse(string);
2481 return date && date._;
2482 } finally {
2483 d3_date = Date;
2484 }
2485 };
2486 format.toString = local.toString;
2487 return format;
2488 };
2489 d3_time_format.multi = d3_time_format.utc.multi = d3_time_formatMulti;
2490 var d3_time_periodLookup = d3.map(), d3_time_dayRe = d3_time_formatRe(locale_days), d3_time_dayLookup = d3_time_formatLookup(locale_days), d3_time_dayAbbrevRe = d3_time_formatRe(locale_shortDays), d3_time_dayAbbrevLookup = d3_time_formatLookup(locale_shortDays), d3_time_monthRe = d3_time_formatRe(locale_months), d3_time_monthLookup = d3_time_formatLookup(locale_months), d3_time_monthAbbrevRe = d3_time_formatRe(locale_shortMonths), d3_time_monthAbbrevLookup = d3_time_formatLookup(locale_shortMonths);
2491 locale_periods.forEach(function(p, i) {
2492 d3_time_periodLookup.set(p.toLowerCase(), i);
2493 });
2494 var d3_time_formats = {
2495 a: function(d) {
2496 return locale_shortDays[d.getDay()];
2497 },
2498 A: function(d) {
2499 return locale_days[d.getDay()];
2500 },
2501 b: function(d) {
2502 return locale_shortMonths[d.getMonth()];
2503 },
2504 B: function(d) {
2505 return locale_months[d.getMonth()];
2506 },
2507 c: d3_time_format(locale_dateTime),
2508 d: function(d, p) {
2509 return d3_time_formatPad(d.getDate(), p, 2);
2510 },
2511 e: function(d, p) {
2512 return d3_time_formatPad(d.getDate(), p, 2);
2513 },
2514 H: function(d, p) {
2515 return d3_time_formatPad(d.getHours(), p, 2);
2516 },
2517 I: function(d, p) {
2518 return d3_time_formatPad(d.getHours() % 12 || 12, p, 2);
2519 },
2520 j: function(d, p) {
2521 return d3_time_formatPad(1 + d3_time.dayOfYear(d), p, 3);
2522 },
2523 L: function(d, p) {
2524 return d3_time_formatPad(d.getMilliseconds(), p, 3);
2525 },
2526 m: function(d, p) {
2527 return d3_time_formatPad(d.getMonth() + 1, p, 2);
2528 },
2529 M: function(d, p) {
2530 return d3_time_formatPad(d.getMinutes(), p, 2);
2531 },
2532 p: function(d) {
2533 return locale_periods[+(d.getHours() >= 12)];
2534 },
2535 S: function(d, p) {
2536 return d3_time_formatPad(d.getSeconds(), p, 2);
2537 },
2538 U: function(d, p) {
2539 return d3_time_formatPad(d3_time.sundayOfYear(d), p, 2);
2540 },
2541 w: function(d) {
2542 return d.getDay();
2543 },
2544 W: function(d, p) {
2545 return d3_time_formatPad(d3_time.mondayOfYear(d), p, 2);
2546 },
2547 x: d3_time_format(locale_date),
2548 X: d3_time_format(locale_time),
2549 y: function(d, p) {
2550 return d3_time_formatPad(d.getFullYear() % 100, p, 2);
2551 },
2552 Y: function(d, p) {
2553 return d3_time_formatPad(d.getFullYear() % 1e4, p, 4);
2554 },
2555 Z: d3_time_zone,
2556 "%": function() {
2557 return "%";
2558 }
2559 };
2560 var d3_time_parsers = {
2561 a: d3_time_parseWeekdayAbbrev,
2562 A: d3_time_parseWeekday,
2563 b: d3_time_parseMonthAbbrev,
2564 B: d3_time_parseMonth,
2565 c: d3_time_parseLocaleFull,
2566 d: d3_time_parseDay,
2567 e: d3_time_parseDay,
2568 H: d3_time_parseHour24,
2569 I: d3_time_parseHour24,
2570 j: d3_time_parseDayOfYear,
2571 L: d3_time_parseMilliseconds,
2572 m: d3_time_parseMonthNumber,
2573 M: d3_time_parseMinutes,
2574 p: d3_time_parseAmPm,
2575 S: d3_time_parseSeconds,
2576 U: d3_time_parseWeekNumberSunday,
2577 w: d3_time_parseWeekdayNumber,
2578 W: d3_time_parseWeekNumberMonday,
2579 x: d3_time_parseLocaleDate,
2580 X: d3_time_parseLocaleTime,
2581 y: d3_time_parseYear,
2582 Y: d3_time_parseFullYear,
2583 Z: d3_time_parseZone,
2584 "%": d3_time_parseLiteralPercent
2585 };
2586 function d3_time_parseWeekdayAbbrev(date, string, i) {
2587 d3_time_dayAbbrevRe.lastIndex = 0;
2588 var n = d3_time_dayAbbrevRe.exec(string.substring(i));
2589 return n ? (date.w = d3_time_dayAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
2590 }
2591 function d3_time_parseWeekday(date, string, i) {
2592 d3_time_dayRe.lastIndex = 0;
2593 var n = d3_time_dayRe.exec(string.substring(i));
2594 return n ? (date.w = d3_time_dayLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
2595 }
2596 function d3_time_parseMonthAbbrev(date, string, i) {
2597 d3_time_monthAbbrevRe.lastIndex = 0;
2598 var n = d3_time_monthAbbrevRe.exec(string.substring(i));
2599 return n ? (date.m = d3_time_monthAbbrevLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
2600 }
2601 function d3_time_parseMonth(date, string, i) {
2602 d3_time_monthRe.lastIndex = 0;
2603 var n = d3_time_monthRe.exec(string.substring(i));
2604 return n ? (date.m = d3_time_monthLookup.get(n[0].toLowerCase()), i + n[0].length) : -1;
2605 }
2606 function d3_time_parseLocaleFull(date, string, i) {
2607 return d3_time_parse(date, d3_time_formats.c.toString(), string, i);
2608 }
2609 function d3_time_parseLocaleDate(date, string, i) {
2610 return d3_time_parse(date, d3_time_formats.x.toString(), string, i);
2611 }
2612 function d3_time_parseLocaleTime(date, string, i) {
2613 return d3_time_parse(date, d3_time_formats.X.toString(), string, i);
2614 }
2615 function d3_time_parseAmPm(date, string, i) {
2616 var n = d3_time_periodLookup.get(string.substring(i, i += 2).toLowerCase());
2617 return n == null ? -1 : (date.p = n, i);
2618 }
2619 return d3_time_format;
2620 }
2621 var d3_time_formatPads = {
2622 "-": "",
2623 _: " ",
2624 "0": "0"
2625 }, d3_time_numberRe = /^\s*\d+/, d3_time_percentRe = /^%/;
2626 function d3_time_formatPad(value, fill, width) {
2627 var sign = value < 0 ? "-" : "", string = (sign ? -value : value) + "", length = string.length;
2628 return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
2629 }
2630 function d3_time_formatRe(names) {
2631 return new RegExp("^(?:" + names.map(d3.requote).join("|") + ")", "i");
2632 }
2633 function d3_time_formatLookup(names) {
2634 var map = new d3_Map(), i = -1, n = names.length;
2635 while (++i < n) map.set(names[i].toLowerCase(), i);
2636 return map;
2637 }
2638 function d3_time_parseWeekdayNumber(date, string, i) {
2639 d3_time_numberRe.lastIndex = 0;
2640 var n = d3_time_numberRe.exec(string.substring(i, i + 1));
2641 return n ? (date.w = +n[0], i + n[0].length) : -1;
2642 }
2643 function d3_time_parseWeekNumberSunday(date, string, i) {
2644 d3_time_numberRe.lastIndex = 0;
2645 var n = d3_time_numberRe.exec(string.substring(i));
2646 return n ? (date.U = +n[0], i + n[0].length) : -1;
2647 }
2648 function d3_time_parseWeekNumberMonday(date, string, i) {
2649 d3_time_numberRe.lastIndex = 0;
2650 var n = d3_time_numberRe.exec(string.substring(i));
2651 return n ? (date.W = +n[0], i + n[0].length) : -1;
2652 }
2653 function d3_time_parseFullYear(date, string, i) {
2654 d3_time_numberRe.lastIndex = 0;
2655 var n = d3_time_numberRe.exec(string.substring(i, i + 4));
2656 return n ? (date.y = +n[0], i + n[0].length) : -1;
2657 }
2658 function d3_time_parseYear(date, string, i) {
2659 d3_time_numberRe.lastIndex = 0;
2660 var n = d3_time_numberRe.exec(string.substring(i, i + 2));
2661 return n ? (date.y = d3_time_expandYear(+n[0]), i + n[0].length) : -1;
2662 }
2663 function d3_time_parseZone(date, string, i) {
2664 return /^[+-]\d{4}$/.test(string = string.substring(i, i + 5)) ? (date.Z = -string,
2665 i + 5) : -1;
2666 }
2667 function d3_time_expandYear(d) {
2668 return d + (d > 68 ? 1900 : 2e3);
2669 }
2670 function d3_time_parseMonthNumber(date, string, i) {
2671 d3_time_numberRe.lastIndex = 0;
2672 var n = d3_time_numberRe.exec(string.substring(i, i + 2));
2673 return n ? (date.m = n[0] - 1, i + n[0].length) : -1;
2674 }
2675 function d3_time_parseDay(date, string, i) {
2676 d3_time_numberRe.lastIndex = 0;
2677 var n = d3_time_numberRe.exec(string.substring(i, i + 2));
2678 return n ? (date.d = +n[0], i + n[0].length) : -1;
2679 }
2680 function d3_time_parseDayOfYear(date, string, i) {
2681 d3_time_numberRe.lastIndex = 0;
2682 var n = d3_time_numberRe.exec(string.substring(i, i + 3));
2683 return n ? (date.j = +n[0], i + n[0].length) : -1;
2684 }
2685 function d3_time_parseHour24(date, string, i) {
2686 d3_time_numberRe.lastIndex = 0;
2687 var n = d3_time_numberRe.exec(string.substring(i, i + 2));
2688 return n ? (date.H = +n[0], i + n[0].length) : -1;
2689 }
2690 function d3_time_parseMinutes(date, string, i) {
2691 d3_time_numberRe.lastIndex = 0;
2692 var n = d3_time_numberRe.exec(string.substring(i, i + 2));
2693 return n ? (date.M = +n[0], i + n[0].length) : -1;
2694 }
2695 function d3_time_parseSeconds(date, string, i) {
2696 d3_time_numberRe.lastIndex = 0;
2697 var n = d3_time_numberRe.exec(string.substring(i, i + 2));
2698 return n ? (date.S = +n[0], i + n[0].length) : -1;
2699 }
2700 function d3_time_parseMilliseconds(date, string, i) {
2701 d3_time_numberRe.lastIndex = 0;
2702 var n = d3_time_numberRe.exec(string.substring(i, i + 3));
2703 return n ? (date.L = +n[0], i + n[0].length) : -1;
2704 }
2705 function d3_time_zone(d) {
2706 var z = d.getTimezoneOffset(), zs = z > 0 ? "-" : "+", zh = ~~(abs(z) / 60), zm = abs(z) % 60;
2707 return zs + d3_time_formatPad(zh, "0", 2) + d3_time_formatPad(zm, "0", 2);
2708 }
2709 function d3_time_parseLiteralPercent(date, string, i) {
2710 d3_time_percentRe.lastIndex = 0;
2711 var n = d3_time_percentRe.exec(string.substring(i, i + 1));
2712 return n ? i + n[0].length : -1;
2713 }
2714 function d3_time_formatMulti(formats) {
2715 var n = formats.length, i = -1;
2716 while (++i < n) formats[i][0] = this(formats[i][0]);
2717 return function(date) {
2718 var i = 0, f = formats[i];
2719 while (!f[1](date)) f = formats[++i];
2720 return f[0](date);
2721 };
2722 }
2723 d3.locale = function(locale) {
2724 return {
2725 numberFormat: d3_locale_numberFormat(locale),
2726 timeFormat: d3_locale_timeFormat(locale)
2727 };
2728 };
2729 var d3_locale_enUS = d3.locale({
2730 decimal: ".",
2731 thousands: ",",
2732 grouping: [ 3 ],
2733 currency: [ "$", "" ],
2734 dateTime: "%a %b %e %X %Y",
2735 date: "%m/%d/%Y",
2736 time: "%H:%M:%S",
2737 periods: [ "AM", "PM" ],
2738 days: [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ],
2739 shortDays: [ "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" ],
2740 months: [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ],
2741 shortMonths: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ]
2742 });
2743 d3.format = d3_locale_enUS.numberFormat;
2744 d3.geo = {};
2745 function d3_adder() {}
2746 d3_adder.prototype = {
2747 s: 0,
2748 t: 0,
2749 add: function(y) {
2750 d3_adderSum(y, this.t, d3_adderTemp);
2751 d3_adderSum(d3_adderTemp.s, this.s, this);
2752 if (this.s) this.t += d3_adderTemp.t; else this.s = d3_adderTemp.t;
2753 },
2754 reset: function() {
2755 this.s = this.t = 0;
2756 },
2757 valueOf: function() {
2758 return this.s;
2759 }
2760 };
2761 var d3_adderTemp = new d3_adder();
2762 function d3_adderSum(a, b, o) {
2763 var x = o.s = a + b, bv = x - a, av = x - bv;
2764 o.t = a - av + (b - bv);
2765 }
2766 d3.geo.stream = function(object, listener) {
2767 if (object && d3_geo_streamObjectType.hasOwnProperty(object.type)) {
2768 d3_geo_streamObjectType[object.type](object, listener);
2769 } else {
2770 d3_geo_streamGeometry(object, listener);
2771 }
2772 };
2773 function d3_geo_streamGeometry(geometry, listener) {
2774 if (geometry && d3_geo_streamGeometryType.hasOwnProperty(geometry.type)) {
2775 d3_geo_streamGeometryType[geometry.type](geometry, listener);
2776 }
2777 }
2778 var d3_geo_streamObjectType = {
2779 Feature: function(feature, listener) {
2780 d3_geo_streamGeometry(feature.geometry, listener);
2781 },
2782 FeatureCollection: function(object, listener) {
2783 var features = object.features, i = -1, n = features.length;
2784 while (++i < n) d3_geo_streamGeometry(features[i].geometry, listener);
2785 }
2786 };
2787 var d3_geo_streamGeometryType = {
2788 Sphere: function(object, listener) {
2789 listener.sphere();
2790 },
2791 Point: function(object, listener) {
2792 object = object.coordinates;
2793 listener.point(object[0], object[1], object[2]);
2794 },
2795 MultiPoint: function(object, listener) {
2796 var coordinates = object.coordinates, i = -1, n = coordinates.length;
2797 while (++i < n) object = coordinates[i], listener.point(object[0], object[1], object[2]);
2798 },
2799 LineString: function(object, listener) {
2800 d3_geo_streamLine(object.coordinates, listener, 0);
2801 },
2802 MultiLineString: function(object, listener) {
2803 var coordinates = object.coordinates, i = -1, n = coordinates.length;
2804 while (++i < n) d3_geo_streamLine(coordinates[i], listener, 0);
2805 },
2806 Polygon: function(object, listener) {
2807 d3_geo_streamPolygon(object.coordinates, listener);
2808 },
2809 MultiPolygon: function(object, listener) {
2810 var coordinates = object.coordinates, i = -1, n = coordinates.length;
2811 while (++i < n) d3_geo_streamPolygon(coordinates[i], listener);
2812 },
2813 GeometryCollection: function(object, listener) {
2814 var geometries = object.geometries, i = -1, n = geometries.length;
2815 while (++i < n) d3_geo_streamGeometry(geometries[i], listener);
2816 }
2817 };
2818 function d3_geo_streamLine(coordinates, listener, closed) {
2819 var i = -1, n = coordinates.length - closed, coordinate;
2820 listener.lineStart();
2821 while (++i < n) coordinate = coordinates[i], listener.point(coordinate[0], coordinate[1], coordinate[2]);
2822 listener.lineEnd();
2823 }
2824 function d3_geo_streamPolygon(coordinates, listener) {
2825 var i = -1, n = coordinates.length;
2826 listener.polygonStart();
2827 while (++i < n) d3_geo_streamLine(coordinates[i], listener, 1);
2828 listener.polygonEnd();
2829 }
2830 d3.geo.area = function(object) {
2831 d3_geo_areaSum = 0;
2832 d3.geo.stream(object, d3_geo_area);
2833 return d3_geo_areaSum;
2834 };
2835 var d3_geo_areaSum, d3_geo_areaRingSum = new d3_adder();
2836 var d3_geo_area = {
2837 sphere: function() {
2838 d3_geo_areaSum += 4 * π;
2839 },
2840 point: d3_noop,
2841 lineStart: d3_noop,
2842 lineEnd: d3_noop,
2843 polygonStart: function() {
2844 d3_geo_areaRingSum.reset();
2845 d3_geo_area.lineStart = d3_geo_areaRingStart;
2846 },
2847 polygonEnd: function() {
2848 var area = 2 * d3_geo_areaRingSum;
2849 d3_geo_areaSum += area < 0 ? 4 * π + area : area;
2850 d3_geo_area.lineStart = d3_geo_area.lineEnd = d3_geo_area.point = d3_noop;
2851 }
2852 };
2853 function d3_geo_areaRingStart() {
2854 var λ00, φ00, λ0, cosφ0, sinφ0;
2855 d3_geo_area.point = function(λ, φ) {
2856 d3_geo_area.point = nextPoint;
2857 λ0 = (λ00 = λ) * d3_radians, cosφ0 = Math.cos(φ = (φ00 = φ) * d3_radians / 2 + π / 4),
2858 sinφ0 = Math.sin(φ);
2859 };
2860 function nextPoint(λ, φ) {
2861 λ *= d3_radians;
2862 φ = φ * d3_radians / 2 + π / 4;
2863 var dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, cosφ = Math.cos(φ), sinφ = Math.sin(φ), k = sinφ0 * sinφ, u = cosφ0 * cosφ + k * Math.cos(adλ), v = k * sdλ * Math.sin(adλ);
2864 d3_geo_areaRingSum.add(Math.atan2(v, u));
2865 λ0 = λ, cosφ0 = cosφ, sinφ0 = sinφ;
2866 }
2867 d3_geo_area.lineEnd = function() {
2868 nextPoint(λ00, φ00);
2869 };
2870 }
2871 function d3_geo_cartesian(spherical) {
2872 var λ = spherical[0], φ = spherical[1], cosφ = Math.cos(φ);
2873 return [ cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ) ];
2874 }
2875 function d3_geo_cartesianDot(a, b) {
2876 return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
2877 }
2878 function d3_geo_cartesianCross(a, b) {
2879 return [ a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0] ];
2880 }
2881 function d3_geo_cartesianAdd(a, b) {
2882 a[0] += b[0];
2883 a[1] += b[1];
2884 a[2] += b[2];
2885 }
2886 function d3_geo_cartesianScale(vector, k) {
2887 return [ vector[0] * k, vector[1] * k, vector[2] * k ];
2888 }
2889 function d3_geo_cartesianNormalize(d) {
2890 var l = Math.sqrt(d[0] * d[0] + d[1] * d[1] + d[2] * d[2]);
2891 d[0] /= l;
2892 d[1] /= l;
2893 d[2] /= l;
2894 }
2895 function d3_geo_spherical(cartesian) {
2896 return [ Math.atan2(cartesian[1], cartesian[0]), d3_asin(cartesian[2]) ];
2897 }
2898 function d3_geo_sphericalEqual(a, b) {
2899 return abs(a[0] - b[0]) < ε && abs(a[1] - b[1]) < ε;
2900 }
2901 d3.geo.bounds = function() {
2902 var λ0, φ0, λ1, φ1, λ_, λ__, φ__, p0, dλSum, ranges, range;
2903 var bound = {
2904 point: point,
2905 lineStart: lineStart,
2906 lineEnd: lineEnd,
2907 polygonStart: function() {
2908 bound.point = ringPoint;
2909 bound.lineStart = ringStart;
2910 bound.lineEnd = ringEnd;
2911 dλSum = 0;
2912 d3_geo_area.polygonStart();
2913 },
2914 polygonEnd: function() {
2915 d3_geo_area.polygonEnd();
2916 bound.point = point;
2917 bound.lineStart = lineStart;
2918 bound.lineEnd = lineEnd;
2919 if (d3_geo_areaRingSum < 0) λ0 = -(λ1 = 180), φ0 = -(φ1 = 90); else if (dλSum > ε) φ1 = 90; else if (dλSum < -ε) φ0 = -90;
2920 range[0] = λ0, range[1] = λ1;
2921 }
2922 };
2923 function point(λ, φ) {
2924 ranges.push(range = [ λ0 = λ, λ1 = λ ]);
2925 if (φ < φ0) φ0 = φ;
2926 if (φ > φ1) φ1 = φ;
2927 }
2928 function linePoint(λ, φ) {
2929 var p = d3_geo_cartesian([ λ * d3_radians, φ * d3_radians ]);
2930 if (p0) {
2931 var normal = d3_geo_cartesianCross(p0, p), equatorial = [ normal[1], -normal[0], 0 ], inflection = d3_geo_cartesianCross(equatorial, normal);
2932 d3_geo_cartesianNormalize(inflection);
2933 inflection = d3_geo_spherical(inflection);
2934 var dλ = λ - λ_, s = dλ > 0 ? 1 : -1, λi = inflection[0] * d3_degrees * s, antimeridian = abs(dλ) > 180;
2935 if (antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
2936 var φi = inflection[1] * d3_degrees;
2937 if (φi > φ1) φ1 = φi;
2938 } else if (λi = (λi + 360) % 360 - 180, antimeridian ^ (s * λ_ < λi && λi < s * λ)) {
2939 var φi = -inflection[1] * d3_degrees;
2940 if (φi < φ0) φ0 = φi;
2941 } else {
2942 if (φ < φ0) φ0 = φ;
2943 if (φ > φ1) φ1 = φ;
2944 }
2945 if (antimeridian) {
2946 if (λ < λ_) {
2947 if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
2948 } else {
2949 if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
2950 }
2951 } else {
2952 if (λ1 >= λ0) {
2953 if (λ < λ0) λ0 = λ;
2954 if (λ > λ1) λ1 = λ;
2955 } else {
2956 if (λ > λ_) {
2957 if (angle(λ0, λ) > angle(λ0, λ1)) λ1 = λ;
2958 } else {
2959 if (angle(λ, λ1) > angle(λ0, λ1)) λ0 = λ;
2960 }
2961 }
2962 }
2963 } else {
2964 point(λ, φ);
2965 }
2966 p0 = p, λ_ = λ;
2967 }
2968 function lineStart() {
2969 bound.point = linePoint;
2970 }
2971 function lineEnd() {
2972 range[0] = λ0, range[1] = λ1;
2973 bound.point = point;
2974 p0 = null;
2975 }
2976 function ringPoint(λ, φ) {
2977 if (p0) {
2978 var dλ = λ - λ_;
2979 dλSum += abs(dλ) > 180 ? dλ + (dλ > 0 ? 360 : -360) : dλ;
2980 } else λ__ = λ, φ__ = φ;
2981 d3_geo_area.point(λ, φ);
2982 linePoint(λ, φ);
2983 }
2984 function ringStart() {
2985 d3_geo_area.lineStart();
2986 }
2987 function ringEnd() {
2988 ringPoint(λ__, φ__);
2989 d3_geo_area.lineEnd();
2990 if (abs(dλSum) > ε) λ0 = -(λ1 = 180);
2991 range[0] = λ0, range[1] = λ1;
2992 p0 = null;
2993 }
2994 function angle(λ0, λ1) {
2995 return (λ1 -= λ0) < 0 ? λ1 + 360 : λ1;
2996 }
2997 function compareRanges(a, b) {
2998 return a[0] - b[0];
2999 }
3000 function withinRange(x, range) {
3001 return range[0] <= range[1] ? range[0] <= x && x <= range[1] : x < range[0] || range[1] < x;
3002 }
3003 return function(feature) {
3004 φ1 = λ1 = -(λ0 = φ0 = Infinity);
3005 ranges = [];
3006 d3.geo.stream(feature, bound);
3007 var n = ranges.length;
3008 if (n) {
3009 ranges.sort(compareRanges);
3010 for (var i = 1, a = ranges[0], b, merged = [ a ]; i < n; ++i) {
3011 b = ranges[i];
3012 if (withinRange(b[0], a) || withinRange(b[1], a)) {
3013 if (angle(a[0], b[1]) > angle(a[0], a[1])) a[1] = b[1];
3014 if (angle(b[0], a[1]) > angle(a[0], a[1])) a[0] = b[0];
3015 } else {
3016 merged.push(a = b);
3017 }
3018 }
3019 var best = -Infinity, dλ;
3020 for (var n = merged.length - 1, i = 0, a = merged[n], b; i <= n; a = b, ++i) {
3021 b = merged[i];
3022 if ((dλ = angle(a[1], b[0])) > best) best = dλ, λ0 = b[0], λ1 = a[1];
3023 }
3024 }
3025 ranges = range = null;
3026 return λ0 === Infinity || φ0 === Infinity ? [ [ NaN, NaN ], [ NaN, NaN ] ] : [ [ λ0, φ0 ], [ λ1, φ1 ] ];
3027 };
3028 }();
3029 d3.geo.centroid = function(object) {
3030 d3_geo_centroidW0 = d3_geo_centroidW1 = d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
3031 d3.geo.stream(object, d3_geo_centroid);
3032 var x = d3_geo_centroidX2, y = d3_geo_centroidY2, z = d3_geo_centroidZ2, m = x * x + y * y + z * z;
3033 if (m < ε2) {
3034 x = d3_geo_centroidX1, y = d3_geo_centroidY1, z = d3_geo_centroidZ1;
3035 if (d3_geo_centroidW1 < ε) x = d3_geo_centroidX0, y = d3_geo_centroidY0, z = d3_geo_centroidZ0;
3036 m = x * x + y * y + z * z;
3037 if (m < ε2) return [ NaN, NaN ];
3038 }
3039 return [ Math.atan2(y, x) * d3_degrees, d3_asin(z / Math.sqrt(m)) * d3_degrees ];
3040 };
3041 var d3_geo_centroidW0, d3_geo_centroidW1, d3_geo_centroidX0, d3_geo_centroidY0, d3_geo_centroidZ0, d3_geo_centroidX1, d3_geo_centroidY1, d3_geo_centroidZ1, d3_geo_centroidX2, d3_geo_centroidY2, d3_geo_centroidZ2;
3042 var d3_geo_centroid = {
3043 sphere: d3_noop,
3044 point: d3_geo_centroidPoint,
3045 lineStart: d3_geo_centroidLineStart,
3046 lineEnd: d3_geo_centroidLineEnd,
3047 polygonStart: function() {
3048 d3_geo_centroid.lineStart = d3_geo_centroidRingStart;
3049 },
3050 polygonEnd: function() {
3051 d3_geo_centroid.lineStart = d3_geo_centroidLineStart;
3052 }
3053 };
3054 function d3_geo_centroidPoint(λ, φ) {
3055 λ *= d3_radians;
3056 var cosφ = Math.cos(φ *= d3_radians);
3057 d3_geo_centroidPointXYZ(cosφ * Math.cos(λ), cosφ * Math.sin(λ), Math.sin(φ));
3058 }
3059 function d3_geo_centroidPointXYZ(x, y, z) {
3060 ++d3_geo_centroidW0;
3061 d3_geo_centroidX0 += (x - d3_geo_centroidX0) / d3_geo_centroidW0;
3062 d3_geo_centroidY0 += (y - d3_geo_centroidY0) / d3_geo_centroidW0;
3063 d3_geo_centroidZ0 += (z - d3_geo_centroidZ0) / d3_geo_centroidW0;
3064 }
3065 function d3_geo_centroidLineStart() {
3066 var x0, y0, z0;
3067 d3_geo_centroid.point = function(λ, φ) {
3068 λ *= d3_radians;
3069 var cosφ = Math.cos(φ *= d3_radians);
3070 x0 = cosφ * Math.cos(λ);
3071 y0 = cosφ * Math.sin(λ);
3072 z0 = Math.sin(φ);
3073 d3_geo_centroid.point = nextPoint;
3074 d3_geo_centroidPointXYZ(x0, y0, z0);
3075 };
3076 function nextPoint(λ, φ) {
3077 λ *= d3_radians;
3078 var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), w = Math.atan2(Math.sqrt((w = y0 * z - z0 * y) * w + (w = z0 * x - x0 * z) * w + (w = x0 * y - y0 * x) * w), x0 * x + y0 * y + z0 * z);
3079 d3_geo_centroidW1 += w;
3080 d3_geo_centroidX1 += w * (x0 + (x0 = x));
3081 d3_geo_centroidY1 += w * (y0 + (y0 = y));
3082 d3_geo_centroidZ1 += w * (z0 + (z0 = z));
3083 d3_geo_centroidPointXYZ(x0, y0, z0);
3084 }
3085 }
3086 function d3_geo_centroidLineEnd() {
3087 d3_geo_centroid.point = d3_geo_centroidPoint;
3088 }
3089 function d3_geo_centroidRingStart() {
3090 var λ00, φ00, x0, y0, z0;
3091 d3_geo_centroid.point = function(λ, φ) {
3092 λ00 = λ, φ00 = φ;
3093 d3_geo_centroid.point = nextPoint;
3094 λ *= d3_radians;
3095 var cosφ = Math.cos(φ *= d3_radians);
3096 x0 = cosφ * Math.cos(λ);
3097 y0 = cosφ * Math.sin(λ);
3098 z0 = Math.sin(φ);
3099 d3_geo_centroidPointXYZ(x0, y0, z0);
3100 };
3101 d3_geo_centroid.lineEnd = function() {
3102 nextPoint(λ00, φ00);
3103 d3_geo_centroid.lineEnd = d3_geo_centroidLineEnd;
3104 d3_geo_centroid.point = d3_geo_centroidPoint;
3105 };
3106 function nextPoint(λ, φ) {
3107 λ *= d3_radians;
3108 var cosφ = Math.cos(φ *= d3_radians), x = cosφ * Math.cos(λ), y = cosφ * Math.sin(λ), z = Math.sin(φ), cx = y0 * z - z0 * y, cy = z0 * x - x0 * z, cz = x0 * y - y0 * x, m = Math.sqrt(cx * cx + cy * cy + cz * cz), u = x0 * x + y0 * y + z0 * z, v = m && -d3_acos(u) / m, w = Math.atan2(m, u);
3109 d3_geo_centroidX2 += v * cx;
3110 d3_geo_centroidY2 += v * cy;
3111 d3_geo_centroidZ2 += v * cz;
3112 d3_geo_centroidW1 += w;
3113 d3_geo_centroidX1 += w * (x0 + (x0 = x));
3114 d3_geo_centroidY1 += w * (y0 + (y0 = y));
3115 d3_geo_centroidZ1 += w * (z0 + (z0 = z));
3116 d3_geo_centroidPointXYZ(x0, y0, z0);
3117 }
3118 }
3119 function d3_true() {
3120 return true;
3121 }
3122 function d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener) {
3123 var subject = [], clip = [];
3124 segments.forEach(function(segment) {
3125 if ((n = segment.length - 1) <= 0) return;
3126 var n, p0 = segment[0], p1 = segment[n];
3127 if (d3_geo_sphericalEqual(p0, p1)) {
3128 listener.lineStart();
3129 for (var i = 0; i < n; ++i) listener.point((p0 = segment[i])[0], p0[1]);
3130 listener.lineEnd();
3131 return;
3132 }
3133 var a = new d3_geo_clipPolygonIntersection(p0, segment, null, true), b = new d3_geo_clipPolygonIntersection(p0, null, a, false);
3134 a.o = b;
3135 subject.push(a);
3136 clip.push(b);
3137 a = new d3_geo_clipPolygonIntersection(p1, segment, null, false);
3138 b = new d3_geo_clipPolygonIntersection(p1, null, a, true);
3139 a.o = b;
3140 subject.push(a);
3141 clip.push(b);
3142 });
3143 clip.sort(compare);
3144 d3_geo_clipPolygonLinkCircular(subject);
3145 d3_geo_clipPolygonLinkCircular(clip);
3146 if (!subject.length) return;
3147 for (var i = 0, entry = clipStartInside, n = clip.length; i < n; ++i) {
3148 clip[i].e = entry = !entry;
3149 }
3150 var start = subject[0], points, point;
3151 while (1) {
3152 var current = start, isSubject = true;
3153 while (current.v) if ((current = current.n) === start) return;
3154 points = current.z;
3155 listener.lineStart();
3156 do {
3157 current.v = current.o.v = true;
3158 if (current.e) {
3159 if (isSubject) {
3160 for (var i = 0, n = points.length; i < n; ++i) listener.point((point = points[i])[0], point[1]);
3161 } else {
3162 interpolate(current.x, current.n.x, 1, listener);
3163 }
3164 current = current.n;
3165 } else {
3166 if (isSubject) {
3167 points = current.p.z;
3168 for (var i = points.length - 1; i >= 0; --i) listener.point((point = points[i])[0], point[1]);
3169 } else {
3170 interpolate(current.x, current.p.x, -1, listener);
3171 }
3172 current = current.p;
3173 }
3174 current = current.o;
3175 points = current.z;
3176 isSubject = !isSubject;
3177 } while (!current.v);
3178 listener.lineEnd();
3179 }
3180 }
3181 function d3_geo_clipPolygonLinkCircular(array) {
3182 if (!(n = array.length)) return;
3183 var n, i = 0, a = array[0], b;
3184 while (++i < n) {
3185 a.n = b = array[i];
3186 b.p = a;
3187 a = b;
3188 }
3189 a.n = b = array[0];
3190 b.p = a;
3191 }
3192 function d3_geo_clipPolygonIntersection(point, points, other, entry) {
3193 this.x = point;
3194 this.z = points;
3195 this.o = other;
3196 this.e = entry;
3197 this.v = false;
3198 this.n = this.p = null;
3199 }
3200 function d3_geo_clip(pointVisible, clipLine, interpolate, clipStart) {
3201 return function(rotate, listener) {
3202 var line = clipLine(listener), rotatedClipStart = rotate.invert(clipStart[0], clipStart[1]);
3203 var clip = {
3204 point: point,
3205 lineStart: lineStart,
3206 lineEnd: lineEnd,
3207 polygonStart: function() {
3208 clip.point = pointRing;
3209 clip.lineStart = ringStart;
3210 clip.lineEnd = ringEnd;
3211 segments = [];
3212 polygon = [];
3213 },
3214 polygonEnd: function() {
3215 clip.point = point;
3216 clip.lineStart = lineStart;
3217 clip.lineEnd = lineEnd;
3218 segments = d3.merge(segments);
3219 var clipStartInside = d3_geo_pointInPolygon(rotatedClipStart, polygon);
3220 if (segments.length) {
3221 if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
3222 d3_geo_clipPolygon(segments, d3_geo_clipSort, clipStartInside, interpolate, listener);
3223 } else if (clipStartInside) {
3224 if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
3225 listener.lineStart();
3226 interpolate(null, null, 1, listener);
3227 listener.lineEnd();
3228 }
3229 if (polygonStarted) listener.polygonEnd(), polygonStarted = false;
3230 segments = polygon = null;
3231 },
3232 sphere: function() {
3233 listener.polygonStart();
3234 listener.lineStart();
3235 interpolate(null, null, 1, listener);
3236 listener.lineEnd();
3237 listener.polygonEnd();
3238 }
3239 };
3240 function point(λ, φ) {
3241 var point = rotate(λ, φ);
3242 if (pointVisible(λ = point[0], φ = point[1])) listener.point(λ, φ);
3243 }
3244 function pointLine(λ, φ) {
3245 var point = rotate(λ, φ);
3246 line.point(point[0], point[1]);
3247 }
3248 function lineStart() {
3249 clip.point = pointLine;
3250 line.lineStart();
3251 }
3252 function lineEnd() {
3253 clip.point = point;
3254 line.lineEnd();
3255 }
3256 var segments;
3257 var buffer = d3_geo_clipBufferListener(), ringListener = clipLine(buffer), polygonStarted = false, polygon, ring;
3258 function pointRing(λ, φ) {
3259 ring.push([ λ, φ ]);
3260 var point = rotate(λ, φ);
3261 ringListener.point(point[0], point[1]);
3262 }
3263 function ringStart() {
3264 ringListener.lineStart();
3265 ring = [];
3266 }
3267 function ringEnd() {
3268 pointRing(ring[0][0], ring[0][1]);
3269 ringListener.lineEnd();
3270 var clean = ringListener.clean(), ringSegments = buffer.buffer(), segment, n = ringSegments.length;
3271 ring.pop();
3272 polygon.push(ring);
3273 ring = null;
3274 if (!n) return;
3275 if (clean & 1) {
3276 segment = ringSegments[0];
3277 var n = segment.length - 1, i = -1, point;
3278 if (n > 0) {
3279 if (!polygonStarted) listener.polygonStart(), polygonStarted = true;
3280 listener.lineStart();
3281 while (++i < n) listener.point((point = segment[i])[0], point[1]);
3282 listener.lineEnd();
3283 }
3284 return;
3285 }
3286 if (n > 1 && clean & 2) ringSegments.push(ringSegments.pop().concat(ringSegments.shift()));
3287 segments.push(ringSegments.filter(d3_geo_clipSegmentLength1));
3288 }
3289 return clip;
3290 };
3291 }
3292 function d3_geo_clipSegmentLength1(segment) {
3293 return segment.length > 1;
3294 }
3295 function d3_geo_clipBufferListener() {
3296 var lines = [], line;
3297 return {
3298 lineStart: function() {
3299 lines.push(line = []);
3300 },
3301 point: function(λ, φ) {
3302 line.push([ λ, φ ]);
3303 },
3304 lineEnd: d3_noop,
3305 buffer: function() {
3306 var buffer = lines;
3307 lines = [];
3308 line = null;
3309 return buffer;
3310 },
3311 rejoin: function() {
3312 if (lines.length > 1) lines.push(lines.pop().concat(lines.shift()));
3313 }
3314 };
3315 }
3316 function d3_geo_clipSort(a, b) {
3317 return ((a = a.x)[0] < 0 ? a[1] - halfπ - ε : halfπ - a[1]) - ((b = b.x)[0] < 0 ? b[1] - halfπ - ε : halfπ - b[1]);
3318 }
3319 function d3_geo_pointInPolygon(point, polygon) {
3320 var meridian = point[0], parallel = point[1], meridianNormal = [ Math.sin(meridian), -Math.cos(meridian), 0 ], polarAngle = 0, winding = 0;
3321 d3_geo_areaRingSum.reset();
3322 for (var i = 0, n = polygon.length; i < n; ++i) {
3323 var ring = polygon[i], m = ring.length;
3324 if (!m) continue;
3325 var point0 = ring[0], λ0 = point0[0], φ0 = point0[1] / 2 + π / 4, sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), j = 1;
3326 while (true) {
3327 if (j === m) j = 0;
3328 point = ring[j];
3329 var λ = point[0], φ = point[1] / 2 + π / 4, sinφ = Math.sin(φ), cosφ = Math.cos(φ), dλ = λ - λ0, sdλ = dλ >= 0 ? 1 : -1, adλ = sdλ * dλ, antimeridian = adλ > π, k = sinφ0 * sinφ;
3330 d3_geo_areaRingSum.add(Math.atan2(k * sdλ * Math.sin(adλ), cosφ0 * cosφ + k * Math.cos(adλ)));
3331 polarAngle += antimeridian ? dλ + sdλ * τ : dλ;
3332 if (antimeridian ^ λ0 >= meridian ^ λ >= meridian) {
3333 var arc = d3_geo_cartesianCross(d3_geo_cartesian(point0), d3_geo_cartesian(point));
3334 d3_geo_cartesianNormalize(arc);
3335 var intersection = d3_geo_cartesianCross(meridianNormal, arc);
3336 d3_geo_cartesianNormalize(intersection);
3337 var φarc = (antimeridian ^ dλ >= 0 ? -1 : 1) * d3_asin(intersection[2]);
3338 if (parallel > φarc || parallel === φarc && (arc[0] || arc[1])) {
3339 winding += antimeridian ^ dλ >= 0 ? 1 : -1;
3340 }
3341 }
3342 if (!j++) break;
3343 λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ, point0 = point;
3344 }
3345 }
3346 return (polarAngle < -ε || polarAngle < ε && d3_geo_areaRingSum < 0) ^ winding & 1;
3347 }
3348 var d3_geo_clipAntimeridian = d3_geo_clip(d3_true, d3_geo_clipAntimeridianLine, d3_geo_clipAntimeridianInterpolate, [ -π, -π / 2 ]);
3349 function d3_geo_clipAntimeridianLine(listener) {
3350 var λ0 = NaN, φ0 = NaN, sλ0 = NaN, clean;
3351 return {
3352 lineStart: function() {
3353 listener.lineStart();
3354 clean = 1;
3355 },
3356 point: function(λ1, φ1) {
3357 var sλ1 = λ1 > 0 ? π : -π, dλ = abs(λ1 - λ0);
3358 if (abs(dλ - π) < ε) {
3359 listener.point(λ0, φ0 = (φ0 + φ1) / 2 > 0 ? halfπ : -halfπ);
3360 listener.point(sλ0, φ0);
3361 listener.lineEnd();
3362 listener.lineStart();
3363 listener.point(sλ1, φ0);
3364 listener.point(λ1, φ0);
3365 clean = 0;
3366 } else if (sλ0 !== sλ1 && dλ >= π) {
3367 if (abs(λ0 - sλ0) < ε) λ0 -= sλ0 * ε;
3368 if (abs(λ1 - sλ1) < ε) λ1 -= sλ1 * ε;
3369 φ0 = d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1);
3370 listener.point(sλ0, φ0);
3371 listener.lineEnd();
3372 listener.lineStart();
3373 listener.point(sλ1, φ0);
3374 clean = 0;
3375 }
3376 listener.point(λ0 = λ1, φ0 = φ1);
3377 sλ0 = sλ1;
3378 },
3379 lineEnd: function() {
3380 listener.lineEnd();
3381 λ0 = φ0 = NaN;
3382 },
3383 clean: function() {
3384 return 2 - clean;
3385 }
3386 };
3387 }
3388 function d3_geo_clipAntimeridianIntersect(λ0, φ0, λ1, φ1) {
3389 var cosφ0, cosφ1, sinλ0_λ1 = Math.sin(λ0 - λ1);
3390 return abs(sinλ0_λ1) > ε ? Math.atan((Math.sin(φ0) * (cosφ1 = Math.cos(φ1)) * Math.sin(λ1) - Math.sin(φ1) * (cosφ0 = Math.cos(φ0)) * Math.sin(λ0)) / (cosφ0 * cosφ1 * sinλ0_λ1)) : (φ0 + φ1) / 2;
3391 }
3392 function d3_geo_clipAntimeridianInterpolate(from, to, direction, listener) {
3393 var φ;
3394 if (from == null) {
3395 φ = direction * halfπ;
3396 listener.point(-π, φ);
3397 listener.point(0, φ);
3398 listener.point(π, φ);
3399 listener.point(π, 0);
3400 listener.point(π, -φ);
3401 listener.point(0, -φ);
3402 listener.point(-π, -φ);
3403 listener.point(-π, 0);
3404 listener.point(-π, φ);
3405 } else if (abs(from[0] - to[0]) > ε) {
3406 var s = from[0] < to[0] ? π : -π;
3407 φ = direction * s / 2;
3408 listener.point(-s, φ);
3409 listener.point(0, φ);
3410 listener.point(s, φ);
3411 } else {
3412 listener.point(to[0], to[1]);
3413 }
3414 }
3415 function d3_geo_clipCircle(radius) {
3416 var cr = Math.cos(radius), smallRadius = cr > 0, notHemisphere = abs(cr) > ε, interpolate = d3_geo_circleInterpolate(radius, 6 * d3_radians);
3417 return d3_geo_clip(visible, clipLine, interpolate, smallRadius ? [ 0, -radius ] : [ -π, radius - π ]);
3418 function visible(λ, φ) {
3419 return Math.cos(λ) * Math.cos(φ) > cr;
3420 }
3421 function clipLine(listener) {
3422 var point0, c0, v0, v00, clean;
3423 return {
3424 lineStart: function() {
3425 v00 = v0 = false;
3426 clean = 1;
3427 },
3428 point: function(λ, φ) {
3429 var point1 = [ λ, φ ], point2, v = visible(λ, φ), c = smallRadius ? v ? 0 : code(λ, φ) : v ? code(λ + (λ < 0 ? π : -π), φ) : 0;
3430 if (!point0 && (v00 = v0 = v)) listener.lineStart();
3431 if (v !== v0) {
3432 point2 = intersect(point0, point1);
3433 if (d3_geo_sphericalEqual(point0, point2) || d3_geo_sphericalEqual(point1, point2)) {
3434 point1[0] += ε;
3435 point1[1] += ε;
3436 v = visible(point1[0], point1[1]);
3437 }
3438 }
3439 if (v !== v0) {
3440 clean = 0;
3441 if (v) {
3442 listener.lineStart();
3443 point2 = intersect(point1, point0);
3444 listener.point(point2[0], point2[1]);
3445 } else {
3446 point2 = intersect(point0, point1);
3447 listener.point(point2[0], point2[1]);
3448 listener.lineEnd();
3449 }
3450 point0 = point2;
3451 } else if (notHemisphere && point0 && smallRadius ^ v) {
3452 var t;
3453 if (!(c & c0) && (t = intersect(point1, point0, true))) {
3454 clean = 0;
3455 if (smallRadius) {
3456 listener.lineStart();
3457 listener.point(t[0][0], t[0][1]);
3458 listener.point(t[1][0], t[1][1]);
3459 listener.lineEnd();
3460 } else {
3461 listener.point(t[1][0], t[1][1]);
3462 listener.lineEnd();
3463 listener.lineStart();
3464 listener.point(t[0][0], t[0][1]);
3465 }
3466 }
3467 }
3468 if (v && (!point0 || !d3_geo_sphericalEqual(point0, point1))) {
3469 listener.point(point1[0], point1[1]);
3470 }
3471 point0 = point1, v0 = v, c0 = c;
3472 },
3473 lineEnd: function() {
3474 if (v0) listener.lineEnd();
3475 point0 = null;
3476 },
3477 clean: function() {
3478 return clean | (v00 && v0) << 1;
3479 }
3480 };
3481 }
3482 function intersect(a, b, two) {
3483 var pa = d3_geo_cartesian(a), pb = d3_geo_cartesian(b);
3484 var n1 = [ 1, 0, 0 ], n2 = d3_geo_cartesianCross(pa, pb), n2n2 = d3_geo_cartesianDot(n2, n2), n1n2 = n2[0], determinant = n2n2 - n1n2 * n1n2;
3485 if (!determinant) return !two && a;
3486 var c1 = cr * n2n2 / determinant, c2 = -cr * n1n2 / determinant, n1xn2 = d3_geo_cartesianCross(n1, n2), A = d3_geo_cartesianScale(n1, c1), B = d3_geo_cartesianScale(n2, c2);
3487 d3_geo_cartesianAdd(A, B);
3488 var u = n1xn2, w = d3_geo_cartesianDot(A, u), uu = d3_geo_cartesianDot(u, u), t2 = w * w - uu * (d3_geo_cartesianDot(A, A) - 1);
3489 if (t2 < 0) return;
3490 var t = Math.sqrt(t2), q = d3_geo_cartesianScale(u, (-w - t) / uu);
3491 d3_geo_cartesianAdd(q, A);
3492 q = d3_geo_spherical(q);
3493 if (!two) return q;
3494 var λ0 = a[0], λ1 = b[0], φ0 = a[1], φ1 = b[1], z;
3495 if (λ1 < λ0) z = λ0, λ0 = λ1, λ1 = z;
3496 var δλ = λ1 - λ0, polar = abs(δλ - π) < ε, meridian = polar || δλ < ε;
3497 if (!polar && φ1 < φ0) z = φ0, φ0 = φ1, φ1 = z;
3498 if (meridian ? polar ? φ0 + φ1 > 0 ^ q[1] < (abs(q[0] - λ0) < ε ? φ0 : φ1) : φ0 <= q[1] && q[1] <= φ1 : δλ > π ^ (λ0 <= q[0] && q[0] <= λ1)) {
3499 var q1 = d3_geo_cartesianScale(u, (-w + t) / uu);
3500 d3_geo_cartesianAdd(q1, A);
3501 return [ q, d3_geo_spherical(q1) ];
3502 }
3503 }
3504 function code(λ, φ) {
3505 var r = smallRadius ? radius : π - radius, code = 0;
3506 if (λ < -r) code |= 1; else if (λ > r) code |= 2;
3507 if (φ < -r) code |= 4; else if (φ > r) code |= 8;
3508 return code;
3509 }
3510 }
3511 function d3_geom_clipLine(x0, y0, x1, y1) {
3512 return function(line) {
3513 var a = line.a, b = line.b, ax = a.x, ay = a.y, bx = b.x, by = b.y, t0 = 0, t1 = 1, dx = bx - ax, dy = by - ay, r;
3514 r = x0 - ax;
3515 if (!dx && r > 0) return;
3516 r /= dx;
3517 if (dx < 0) {
3518 if (r < t0) return;
3519 if (r < t1) t1 = r;
3520 } else if (dx > 0) {
3521 if (r > t1) return;
3522 if (r > t0) t0 = r;
3523 }
3524 r = x1 - ax;
3525 if (!dx && r < 0) return;
3526 r /= dx;
3527 if (dx < 0) {
3528 if (r > t1) return;
3529 if (r > t0) t0 = r;
3530 } else if (dx > 0) {
3531 if (r < t0) return;
3532 if (r < t1) t1 = r;
3533 }
3534 r = y0 - ay;
3535 if (!dy && r > 0) return;
3536 r /= dy;
3537 if (dy < 0) {
3538 if (r < t0) return;
3539 if (r < t1) t1 = r;
3540 } else if (dy > 0) {
3541 if (r > t1) return;
3542 if (r > t0) t0 = r;
3543 }
3544 r = y1 - ay;
3545 if (!dy && r < 0) return;
3546 r /= dy;
3547 if (dy < 0) {
3548 if (r > t1) return;
3549 if (r > t0) t0 = r;
3550 } else if (dy > 0) {
3551 if (r < t0) return;
3552 if (r < t1) t1 = r;
3553 }
3554 if (t0 > 0) line.a = {
3555 x: ax + t0 * dx,
3556 y: ay + t0 * dy
3557 };
3558 if (t1 < 1) line.b = {
3559 x: ax + t1 * dx,
3560 y: ay + t1 * dy
3561 };
3562 return line;
3563 };
3564 }
3565 var d3_geo_clipExtentMAX = 1e9;
3566 d3.geo.clipExtent = function() {
3567 var x0, y0, x1, y1, stream, clip, clipExtent = {
3568 stream: function(output) {
3569 if (stream) stream.valid = false;
3570 stream = clip(output);
3571 stream.valid = true;
3572 return stream;
3573 },
3574 extent: function(_) {
3575 if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
3576 clip = d3_geo_clipExtent(x0 = +_[0][0], y0 = +_[0][1], x1 = +_[1][0], y1 = +_[1][1]);
3577 if (stream) stream.valid = false, stream = null;
3578 return clipExtent;
3579 }
3580 };
3581 return clipExtent.extent([ [ 0, 0 ], [ 960, 500 ] ]);
3582 };
3583 function d3_geo_clipExtent(x0, y0, x1, y1) {
3584 return function(listener) {
3585 var listener_ = listener, bufferListener = d3_geo_clipBufferListener(), clipLine = d3_geom_clipLine(x0, y0, x1, y1), segments, polygon, ring;
3586 var clip = {
3587 point: point,
3588 lineStart: lineStart,
3589 lineEnd: lineEnd,
3590 polygonStart: function() {
3591 listener = bufferListener;
3592 segments = [];
3593 polygon = [];
3594 clean = true;
3595 },
3596 polygonEnd: function() {
3597 listener = listener_;
3598 segments = d3.merge(segments);
3599 var clipStartInside = insidePolygon([ x0, y1 ]), inside = clean && clipStartInside, visible = segments.length;
3600 if (inside || visible) {
3601 listener.polygonStart();
3602 if (inside) {
3603 listener.lineStart();
3604 interpolate(null, null, 1, listener);
3605 listener.lineEnd();
3606 }
3607 if (visible) {
3608 d3_geo_clipPolygon(segments, compare, clipStartInside, interpolate, listener);
3609 }
3610 listener.polygonEnd();
3611 }
3612 segments = polygon = ring = null;
3613 }
3614 };
3615 function insidePolygon(p) {
3616 var wn = 0, n = polygon.length, y = p[1];
3617 for (var i = 0; i < n; ++i) {
3618 for (var j = 1, v = polygon[i], m = v.length, a = v[0], b; j < m; ++j) {
3619 b = v[j];
3620 if (a[1] <= y) {
3621 if (b[1] > y && d3_cross2d(a, b, p) > 0) ++wn;
3622 } else {
3623 if (b[1] <= y && d3_cross2d(a, b, p) < 0) --wn;
3624 }
3625 a = b;
3626 }
3627 }
3628 return wn !== 0;
3629 }
3630 function interpolate(from, to, direction, listener) {
3631 var a = 0, a1 = 0;
3632 if (from == null || (a = corner(from, direction)) !== (a1 = corner(to, direction)) || comparePoints(from, to) < 0 ^ direction > 0) {
3633 do {
3634 listener.point(a === 0 || a === 3 ? x0 : x1, a > 1 ? y1 : y0);
3635 } while ((a = (a + direction + 4) % 4) !== a1);
3636 } else {
3637 listener.point(to[0], to[1]);
3638 }
3639 }
3640 function pointVisible(x, y) {
3641 return x0 <= x && x <= x1 && y0 <= y && y <= y1;
3642 }
3643 function point(x, y) {
3644 if (pointVisible(x, y)) listener.point(x, y);
3645 }
3646 var x__, y__, v__, x_, y_, v_, first, clean;
3647 function lineStart() {
3648 clip.point = linePoint;
3649 if (polygon) polygon.push(ring = []);
3650 first = true;
3651 v_ = false;
3652 x_ = y_ = NaN;
3653 }
3654 function lineEnd() {
3655 if (segments) {
3656 linePoint(x__, y__);
3657 if (v__ && v_) bufferListener.rejoin();
3658 segments.push(bufferListener.buffer());
3659 }
3660 clip.point = point;
3661 if (v_) listener.lineEnd();
3662 }
3663 function linePoint(x, y) {
3664 x = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, x));
3665 y = Math.max(-d3_geo_clipExtentMAX, Math.min(d3_geo_clipExtentMAX, y));
3666 var v = pointVisible(x, y);
3667 if (polygon) ring.push([ x, y ]);
3668 if (first) {
3669 x__ = x, y__ = y, v__ = v;
3670 first = false;
3671 if (v) {
3672 listener.lineStart();
3673 listener.point(x, y);
3674 }
3675 } else {
3676 if (v && v_) listener.point(x, y); else {
3677 var l = {
3678 a: {
3679 x: x_,
3680 y: y_
3681 },
3682 b: {
3683 x: x,
3684 y: y
3685 }
3686 };
3687 if (clipLine(l)) {
3688 if (!v_) {
3689 listener.lineStart();
3690 listener.point(l.a.x, l.a.y);
3691 }
3692 listener.point(l.b.x, l.b.y);
3693 if (!v) listener.lineEnd();
3694 clean = false;
3695 } else if (v) {
3696 listener.lineStart();
3697 listener.point(x, y);
3698 clean = false;
3699 }
3700 }
3701 }
3702 x_ = x, y_ = y, v_ = v;
3703 }
3704 return clip;
3705 };
3706 function corner(p, direction) {
3707 return abs(p[0] - x0) < ε ? direction > 0 ? 0 : 3 : abs(p[0] - x1) < ε ? direction > 0 ? 2 : 1 : abs(p[1] - y0) < ε ? direction > 0 ? 1 : 0 : direction > 0 ? 3 : 2;
3708 }
3709 function compare(a, b) {
3710 return comparePoints(a.x, b.x);
3711 }
3712 function comparePoints(a, b) {
3713 var ca = corner(a, 1), cb = corner(b, 1);
3714 return ca !== cb ? ca - cb : ca === 0 ? b[1] - a[1] : ca === 1 ? a[0] - b[0] : ca === 2 ? a[1] - b[1] : b[0] - a[0];
3715 }
3716 }
3717 function d3_geo_compose(a, b) {
3718 function compose(x, y) {
3719 return x = a(x, y), b(x[0], x[1]);
3720 }
3721 if (a.invert && b.invert) compose.invert = function(x, y) {
3722 return x = b.invert(x, y), x && a.invert(x[0], x[1]);
3723 };
3724 return compose;
3725 }
3726 function d3_geo_conic(projectAt) {
3727 var φ0 = 0, φ1 = π / 3, m = d3_geo_projectionMutator(projectAt), p = m(φ0, φ1);
3728 p.parallels = function(_) {
3729 if (!arguments.length) return [ φ0 / π * 180, φ1 / π * 180 ];
3730 return m(φ0 = _[0] * π / 180, φ1 = _[1] * π / 180);
3731 };
3732 return p;
3733 }
3734 function d3_geo_conicEqualArea(φ0, φ1) {
3735 var sinφ0 = Math.sin(φ0), n = (sinφ0 + Math.sin(φ1)) / 2, C = 1 + sinφ0 * (2 * n - sinφ0), ρ0 = Math.sqrt(C) / n;
3736 function forward(λ, φ) {
3737 var ρ = Math.sqrt(C - 2 * n * Math.sin(φ)) / n;
3738 return [ ρ * Math.sin(λ *= n), ρ0 - ρ * Math.cos(λ) ];
3739 }
3740 forward.invert = function(x, y) {
3741 var ρ0_y = ρ0 - y;
3742 return [ Math.atan2(x, ρ0_y) / n, d3_asin((C - (x * x + ρ0_y * ρ0_y) * n * n) / (2 * n)) ];
3743 };
3744 return forward;
3745 }
3746 (d3.geo.conicEqualArea = function() {
3747 return d3_geo_conic(d3_geo_conicEqualArea);
3748 }).raw = d3_geo_conicEqualArea;
3749 d3.geo.albers = function() {
3750 return d3.geo.conicEqualArea().rotate([ 96, 0 ]).center([ -.6, 38.7 ]).parallels([ 29.5, 45.5 ]).scale(1070);
3751 };
3752 d3.geo.albersUsa = function() {
3753 var lower48 = d3.geo.albers();
3754 var alaska = d3.geo.conicEqualArea().rotate([ 154, 0 ]).center([ -2, 58.5 ]).parallels([ 55, 65 ]);
3755 var hawaii = d3.geo.conicEqualArea().rotate([ 157, 0 ]).center([ -3, 19.9 ]).parallels([ 8, 18 ]);
3756 var point, pointStream = {
3757 point: function(x, y) {
3758 point = [ x, y ];
3759 }
3760 }, lower48Point, alaskaPoint, hawaiiPoint;
3761 function albersUsa(coordinates) {
3762 var x = coordinates[0], y = coordinates[1];
3763 point = null;
3764 (lower48Point(x, y), point) || (alaskaPoint(x, y), point) || hawaiiPoint(x, y);
3765 return point;
3766 }
3767 albersUsa.invert = function(coordinates) {
3768 var k = lower48.scale(), t = lower48.translate(), x = (coordinates[0] - t[0]) / k, y = (coordinates[1] - t[1]) / k;
3769 return (y >= .12 && y < .234 && x >= -.425 && x < -.214 ? alaska : y >= .166 && y < .234 && x >= -.214 && x < -.115 ? hawaii : lower48).invert(coordinates);
3770 };
3771 albersUsa.stream = function(stream) {
3772 var lower48Stream = lower48.stream(stream), alaskaStream = alaska.stream(stream), hawaiiStream = hawaii.stream(stream);
3773 return {
3774 point: function(x, y) {
3775 lower48Stream.point(x, y);
3776 alaskaStream.point(x, y);
3777 hawaiiStream.point(x, y);
3778 },
3779 sphere: function() {
3780 lower48Stream.sphere();
3781 alaskaStream.sphere();
3782 hawaiiStream.sphere();
3783 },
3784 lineStart: function() {
3785 lower48Stream.lineStart();
3786 alaskaStream.lineStart();
3787 hawaiiStream.lineStart();
3788 },
3789 lineEnd: function() {
3790 lower48Stream.lineEnd();
3791 alaskaStream.lineEnd();
3792 hawaiiStream.lineEnd();
3793 },
3794 polygonStart: function() {
3795 lower48Stream.polygonStart();
3796 alaskaStream.polygonStart();
3797 hawaiiStream.polygonStart();
3798 },
3799 polygonEnd: function() {
3800 lower48Stream.polygonEnd();
3801 alaskaStream.polygonEnd();
3802 hawaiiStream.polygonEnd();
3803 }
3804 };
3805 };
3806 albersUsa.precision = function(_) {
3807 if (!arguments.length) return lower48.precision();
3808 lower48.precision(_);
3809 alaska.precision(_);
3810 hawaii.precision(_);
3811 return albersUsa;
3812 };
3813 albersUsa.scale = function(_) {
3814 if (!arguments.length) return lower48.scale();
3815 lower48.scale(_);
3816 alaska.scale(_ * .35);
3817 hawaii.scale(_);
3818 return albersUsa.translate(lower48.translate());
3819 };
3820 albersUsa.translate = function(_) {
3821 if (!arguments.length) return lower48.translate();
3822 var k = lower48.scale(), x = +_[0], y = +_[1];
3823 lower48Point = lower48.translate(_).clipExtent([ [ x - .455 * k, y - .238 * k ], [ x + .455 * k, y + .238 * k ] ]).stream(pointStream).point;
3824 alaskaPoint = alaska.translate([ x - .307 * k, y + .201 * k ]).clipExtent([ [ x - .425 * k + ε, y + .12 * k + ε ], [ x - .214 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
3825 hawaiiPoint = hawaii.translate([ x - .205 * k, y + .212 * k ]).clipExtent([ [ x - .214 * k + ε, y + .166 * k + ε ], [ x - .115 * k - ε, y + .234 * k - ε ] ]).stream(pointStream).point;
3826 return albersUsa;
3827 };
3828 return albersUsa.scale(1070);
3829 };
3830 var d3_geo_pathAreaSum, d3_geo_pathAreaPolygon, d3_geo_pathArea = {
3831 point: d3_noop,
3832 lineStart: d3_noop,
3833 lineEnd: d3_noop,
3834 polygonStart: function() {
3835 d3_geo_pathAreaPolygon = 0;
3836 d3_geo_pathArea.lineStart = d3_geo_pathAreaRingStart;
3837 },
3838 polygonEnd: function() {
3839 d3_geo_pathArea.lineStart = d3_geo_pathArea.lineEnd = d3_geo_pathArea.point = d3_noop;
3840 d3_geo_pathAreaSum += abs(d3_geo_pathAreaPolygon / 2);
3841 }
3842 };
3843 function d3_geo_pathAreaRingStart() {
3844 var x00, y00, x0, y0;
3845 d3_geo_pathArea.point = function(x, y) {
3846 d3_geo_pathArea.point = nextPoint;
3847 x00 = x0 = x, y00 = y0 = y;
3848 };
3849 function nextPoint(x, y) {
3850 d3_geo_pathAreaPolygon += y0 * x - x0 * y;
3851 x0 = x, y0 = y;
3852 }
3853 d3_geo_pathArea.lineEnd = function() {
3854 nextPoint(x00, y00);
3855 };
3856 }
3857 var d3_geo_pathBoundsX0, d3_geo_pathBoundsY0, d3_geo_pathBoundsX1, d3_geo_pathBoundsY1;
3858 var d3_geo_pathBounds = {
3859 point: d3_geo_pathBoundsPoint,
3860 lineStart: d3_noop,
3861 lineEnd: d3_noop,
3862 polygonStart: d3_noop,
3863 polygonEnd: d3_noop
3864 };
3865 function d3_geo_pathBoundsPoint(x, y) {
3866 if (x < d3_geo_pathBoundsX0) d3_geo_pathBoundsX0 = x;
3867 if (x > d3_geo_pathBoundsX1) d3_geo_pathBoundsX1 = x;
3868 if (y < d3_geo_pathBoundsY0) d3_geo_pathBoundsY0 = y;
3869 if (y > d3_geo_pathBoundsY1) d3_geo_pathBoundsY1 = y;
3870 }
3871 function d3_geo_pathBuffer() {
3872 var pointCircle = d3_geo_pathBufferCircle(4.5), buffer = [];
3873 var stream = {
3874 point: point,
3875 lineStart: function() {
3876 stream.point = pointLineStart;
3877 },
3878 lineEnd: lineEnd,
3879 polygonStart: function() {
3880 stream.lineEnd = lineEndPolygon;
3881 },
3882 polygonEnd: function() {
3883 stream.lineEnd = lineEnd;
3884 stream.point = point;
3885 },
3886 pointRadius: function(_) {
3887 pointCircle = d3_geo_pathBufferCircle(_);
3888 return stream;
3889 },
3890 result: function() {
3891 if (buffer.length) {
3892 var result = buffer.join("");
3893 buffer = [];
3894 return result;
3895 }
3896 }
3897 };
3898 function point(x, y) {
3899 buffer.push("M", x, ",", y, pointCircle);
3900 }
3901 function pointLineStart(x, y) {
3902 buffer.push("M", x, ",", y);
3903 stream.point = pointLine;
3904 }
3905 function pointLine(x, y) {
3906 buffer.push("L", x, ",", y);
3907 }
3908 function lineEnd() {
3909 stream.point = point;
3910 }
3911 function lineEndPolygon() {
3912 buffer.push("Z");
3913 }
3914 return stream;
3915 }
3916 function d3_geo_pathBufferCircle(radius) {
3917 return "m0," + radius + "a" + radius + "," + radius + " 0 1,1 0," + -2 * radius + "a" + radius + "," + radius + " 0 1,1 0," + 2 * radius + "z";
3918 }
3919 var d3_geo_pathCentroid = {
3920 point: d3_geo_pathCentroidPoint,
3921 lineStart: d3_geo_pathCentroidLineStart,
3922 lineEnd: d3_geo_pathCentroidLineEnd,
3923 polygonStart: function() {
3924 d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidRingStart;
3925 },
3926 polygonEnd: function() {
3927 d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
3928 d3_geo_pathCentroid.lineStart = d3_geo_pathCentroidLineStart;
3929 d3_geo_pathCentroid.lineEnd = d3_geo_pathCentroidLineEnd;
3930 }
3931 };
3932 function d3_geo_pathCentroidPoint(x, y) {
3933 d3_geo_centroidX0 += x;
3934 d3_geo_centroidY0 += y;
3935 ++d3_geo_centroidZ0;
3936 }
3937 function d3_geo_pathCentroidLineStart() {
3938 var x0, y0;
3939 d3_geo_pathCentroid.point = function(x, y) {
3940 d3_geo_pathCentroid.point = nextPoint;
3941 d3_geo_pathCentroidPoint(x0 = x, y0 = y);
3942 };
3943 function nextPoint(x, y) {
3944 var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
3945 d3_geo_centroidX1 += z * (x0 + x) / 2;
3946 d3_geo_centroidY1 += z * (y0 + y) / 2;
3947 d3_geo_centroidZ1 += z;
3948 d3_geo_pathCentroidPoint(x0 = x, y0 = y);
3949 }
3950 }
3951 function d3_geo_pathCentroidLineEnd() {
3952 d3_geo_pathCentroid.point = d3_geo_pathCentroidPoint;
3953 }
3954 function d3_geo_pathCentroidRingStart() {
3955 var x00, y00, x0, y0;
3956 d3_geo_pathCentroid.point = function(x, y) {
3957 d3_geo_pathCentroid.point = nextPoint;
3958 d3_geo_pathCentroidPoint(x00 = x0 = x, y00 = y0 = y);
3959 };
3960 function nextPoint(x, y) {
3961 var dx = x - x0, dy = y - y0, z = Math.sqrt(dx * dx + dy * dy);
3962 d3_geo_centroidX1 += z * (x0 + x) / 2;
3963 d3_geo_centroidY1 += z * (y0 + y) / 2;
3964 d3_geo_centroidZ1 += z;
3965 z = y0 * x - x0 * y;
3966 d3_geo_centroidX2 += z * (x0 + x);
3967 d3_geo_centroidY2 += z * (y0 + y);
3968 d3_geo_centroidZ2 += z * 3;
3969 d3_geo_pathCentroidPoint(x0 = x, y0 = y);
3970 }
3971 d3_geo_pathCentroid.lineEnd = function() {
3972 nextPoint(x00, y00);
3973 };
3974 }
3975 function d3_geo_pathContext(context) {
3976 var pointRadius = 4.5;
3977 var stream = {
3978 point: point,
3979 lineStart: function() {
3980 stream.point = pointLineStart;
3981 },
3982 lineEnd: lineEnd,
3983 polygonStart: function() {
3984 stream.lineEnd = lineEndPolygon;
3985 },
3986 polygonEnd: function() {
3987 stream.lineEnd = lineEnd;
3988 stream.point = point;
3989 },
3990 pointRadius: function(_) {
3991 pointRadius = _;
3992 return stream;
3993 },
3994 result: d3_noop
3995 };
3996 function point(x, y) {
3997 context.moveTo(x, y);
3998 context.arc(x, y, pointRadius, 0, τ);
3999 }
4000 function pointLineStart(x, y) {
4001 context.moveTo(x, y);
4002 stream.point = pointLine;
4003 }
4004 function pointLine(x, y) {
4005 context.lineTo(x, y);
4006 }
4007 function lineEnd() {
4008 stream.point = point;
4009 }
4010 function lineEndPolygon() {
4011 context.closePath();
4012 }
4013 return stream;
4014 }
4015 function d3_geo_resample(project) {
4016 var δ2 = .5, cosMinDistance = Math.cos(30 * d3_radians), maxDepth = 16;
4017 function resample(stream) {
4018 return (maxDepth ? resampleRecursive : resampleNone)(stream);
4019 }
4020 function resampleNone(stream) {
4021 return d3_geo_transformPoint(stream, function(x, y) {
4022 x = project(x, y);
4023 stream.point(x[0], x[1]);
4024 });
4025 }
4026 function resampleRecursive(stream) {
4027 var λ00, φ00, x00, y00, a00, b00, c00, λ0, x0, y0, a0, b0, c0;
4028 var resample = {
4029 point: point,
4030 lineStart: lineStart,
4031 lineEnd: lineEnd,
4032 polygonStart: function() {
4033 stream.polygonStart();
4034 resample.lineStart = ringStart;
4035 },
4036 polygonEnd: function() {
4037 stream.polygonEnd();
4038 resample.lineStart = lineStart;
4039 }
4040 };
4041 function point(x, y) {
4042 x = project(x, y);
4043 stream.point(x[0], x[1]);
4044 }
4045 function lineStart() {
4046 x0 = NaN;
4047 resample.point = linePoint;
4048 stream.lineStart();
4049 }
4050 function linePoint(λ, φ) {
4051 var c = d3_geo_cartesian([ λ, φ ]), p = project(λ, φ);
4052 resampleLineTo(x0, y0, λ0, a0, b0, c0, x0 = p[0], y0 = p[1], λ0 = λ, a0 = c[0], b0 = c[1], c0 = c[2], maxDepth, stream);
4053 stream.point(x0, y0);
4054 }
4055 function lineEnd() {
4056 resample.point = point;
4057 stream.lineEnd();
4058 }
4059 function ringStart() {
4060 lineStart();
4061 resample.point = ringPoint;
4062 resample.lineEnd = ringEnd;
4063 }
4064 function ringPoint(λ, φ) {
4065 linePoint(λ00 = λ, φ00 = φ), x00 = x0, y00 = y0, a00 = a0, b00 = b0, c00 = c0;
4066 resample.point = linePoint;
4067 }
4068 function ringEnd() {
4069 resampleLineTo(x0, y0, λ0, a0, b0, c0, x00, y00, λ00, a00, b00, c00, maxDepth, stream);
4070 resample.lineEnd = lineEnd;
4071 lineEnd();
4072 }
4073 return resample;
4074 }
4075 function resampleLineTo(x0, y0, λ0, a0, b0, c0, x1, y1, λ1, a1, b1, c1, depth, stream) {
4076 var dx = x1 - x0, dy = y1 - y0, d2 = dx * dx + dy * dy;
4077 if (d2 > 4 * δ2 && depth--) {
4078 var a = a0 + a1, b = b0 + b1, c = c0 + c1, m = Math.sqrt(a * a + b * b + c * c), φ2 = Math.asin(c /= m), λ2 = abs(abs(c) - 1) < ε || abs(λ0 - λ1) < ε ? (λ0 + λ1) / 2 : Math.atan2(b, a), p = project(λ2, φ2), x2 = p[0], y2 = p[1], dx2 = x2 - x0, dy2 = y2 - y0, dz = dy * dx2 - dx * dy2;
4079 if (dz * dz / d2 > δ2 || abs((dx * dx2 + dy * dy2) / d2 - .5) > .3 || a0 * a1 + b0 * b1 + c0 * c1 < cosMinDistance) {
4080 resampleLineTo(x0, y0, λ0, a0, b0, c0, x2, y2, λ2, a /= m, b /= m, c, depth, stream);
4081 stream.point(x2, y2);
4082 resampleLineTo(x2, y2, λ2, a, b, c, x1, y1, λ1, a1, b1, c1, depth, stream);
4083 }
4084 }
4085 }
4086 resample.precision = function(_) {
4087 if (!arguments.length) return Math.sqrt(δ2);
4088 maxDepth = (δ2 = _ * _) > 0 && 16;
4089 return resample;
4090 };
4091 return resample;
4092 }
4093 d3.geo.path = function() {
4094 var pointRadius = 4.5, projection, context, projectStream, contextStream, cacheStream;
4095 function path(object) {
4096 if (object) {
4097 if (typeof pointRadius === "function") contextStream.pointRadius(+pointRadius.apply(this, arguments));
4098 if (!cacheStream || !cacheStream.valid) cacheStream = projectStream(contextStream);
4099 d3.geo.stream(object, cacheStream);
4100 }
4101 return contextStream.result();
4102 }
4103 path.area = function(object) {
4104 d3_geo_pathAreaSum = 0;
4105 d3.geo.stream(object, projectStream(d3_geo_pathArea));
4106 return d3_geo_pathAreaSum;
4107 };
4108 path.centroid = function(object) {
4109 d3_geo_centroidX0 = d3_geo_centroidY0 = d3_geo_centroidZ0 = d3_geo_centroidX1 = d3_geo_centroidY1 = d3_geo_centroidZ1 = d3_geo_centroidX2 = d3_geo_centroidY2 = d3_geo_centroidZ2 = 0;
4110 d3.geo.stream(object, projectStream(d3_geo_pathCentroid));
4111 return d3_geo_centroidZ2 ? [ d3_geo_centroidX2 / d3_geo_centroidZ2, d3_geo_centroidY2 / d3_geo_centroidZ2 ] : d3_geo_centroidZ1 ? [ d3_geo_centroidX1 / d3_geo_centroidZ1, d3_geo_centroidY1 / d3_geo_centroidZ1 ] : d3_geo_centroidZ0 ? [ d3_geo_centroidX0 / d3_geo_centroidZ0, d3_geo_centroidY0 / d3_geo_centroidZ0 ] : [ NaN, NaN ];
4112 };
4113 path.bounds = function(object) {
4114 d3_geo_pathBoundsX1 = d3_geo_pathBoundsY1 = -(d3_geo_pathBoundsX0 = d3_geo_pathBoundsY0 = Infinity);
4115 d3.geo.stream(object, projectStream(d3_geo_pathBounds));
4116 return [ [ d3_geo_pathBoundsX0, d3_geo_pathBoundsY0 ], [ d3_geo_pathBoundsX1, d3_geo_pathBoundsY1 ] ];
4117 };
4118 path.projection = function(_) {
4119 if (!arguments.length) return projection;
4120 projectStream = (projection = _) ? _.stream || d3_geo_pathProjectStream(_) : d3_identity;
4121 return reset();
4122 };
4123 path.context = function(_) {
4124 if (!arguments.length) return context;
4125 contextStream = (context = _) == null ? new d3_geo_pathBuffer() : new d3_geo_pathContext(_);
4126 if (typeof pointRadius !== "function") contextStream.pointRadius(pointRadius);
4127 return reset();
4128 };
4129 path.pointRadius = function(_) {
4130 if (!arguments.length) return pointRadius;
4131 pointRadius = typeof _ === "function" ? _ : (contextStream.pointRadius(+_), +_);
4132 return path;
4133 };
4134 function reset() {
4135 cacheStream = null;
4136 return path;
4137 }
4138 return path.projection(d3.geo.albersUsa()).context(null);
4139 };
4140 function d3_geo_pathProjectStream(project) {
4141 var resample = d3_geo_resample(function(x, y) {
4142 return project([ x * d3_degrees, y * d3_degrees ]);
4143 });
4144 return function(stream) {
4145 return d3_geo_projectionRadians(resample(stream));
4146 };
4147 }
4148 d3.geo.transform = function(methods) {
4149 return {
4150 stream: function(stream) {
4151 var transform = new d3_geo_transform(stream);
4152 for (var k in methods) transform[k] = methods[k];
4153 return transform;
4154 }
4155 };
4156 };
4157 function d3_geo_transform(stream) {
4158 this.stream = stream;
4159 }
4160 d3_geo_transform.prototype = {
4161 point: function(x, y) {
4162 this.stream.point(x, y);
4163 },
4164 sphere: function() {
4165 this.stream.sphere();
4166 },
4167 lineStart: function() {
4168 this.stream.lineStart();
4169 },
4170 lineEnd: function() {
4171 this.stream.lineEnd();
4172 },
4173 polygonStart: function() {
4174 this.stream.polygonStart();
4175 },
4176 polygonEnd: function() {
4177 this.stream.polygonEnd();
4178 }
4179 };
4180 function d3_geo_transformPoint(stream, point) {
4181 return {
4182 point: point,
4183 sphere: function() {
4184 stream.sphere();
4185 },
4186 lineStart: function() {
4187 stream.lineStart();
4188 },
4189 lineEnd: function() {
4190 stream.lineEnd();
4191 },
4192 polygonStart: function() {
4193 stream.polygonStart();
4194 },
4195 polygonEnd: function() {
4196 stream.polygonEnd();
4197 }
4198 };
4199 }
4200 d3.geo.projection = d3_geo_projection;
4201 d3.geo.projectionMutator = d3_geo_projectionMutator;
4202 function d3_geo_projection(project) {
4203 return d3_geo_projectionMutator(function() {
4204 return project;
4205 })();
4206 }
4207 function d3_geo_projectionMutator(projectAt) {
4208 var project, rotate, projectRotate, projectResample = d3_geo_resample(function(x, y) {
4209 x = project(x, y);
4210 return [ x[0] * k + δx, δy - x[1] * k ];
4211 }), k = 150, x = 480, y = 250, λ = 0, φ = 0, δλ = 0, δφ = 0, δγ = 0, δx, δy, preclip = d3_geo_clipAntimeridian, postclip = d3_identity, clipAngle = null, clipExtent = null, stream;
4212 function projection(point) {
4213 point = projectRotate(point[0] * d3_radians, point[1] * d3_radians);
4214 return [ point[0] * k + δx, δy - point[1] * k ];
4215 }
4216 function invert(point) {
4217 point = projectRotate.invert((point[0] - δx) / k, (δy - point[1]) / k);
4218 return point && [ point[0] * d3_degrees, point[1] * d3_degrees ];
4219 }
4220 projection.stream = function(output) {
4221 if (stream) stream.valid = false;
4222 stream = d3_geo_projectionRadians(preclip(rotate, projectResample(postclip(output))));
4223 stream.valid = true;
4224 return stream;
4225 };
4226 projection.clipAngle = function(_) {
4227 if (!arguments.length) return clipAngle;
4228 preclip = _ == null ? (clipAngle = _, d3_geo_clipAntimeridian) : d3_geo_clipCircle((clipAngle = +_) * d3_radians);
4229 return invalidate();
4230 };
4231 projection.clipExtent = function(_) {
4232 if (!arguments.length) return clipExtent;
4233 clipExtent = _;
4234 postclip = _ ? d3_geo_clipExtent(_[0][0], _[0][1], _[1][0], _[1][1]) : d3_identity;
4235 return invalidate();
4236 };
4237 projection.scale = function(_) {
4238 if (!arguments.length) return k;
4239 k = +_;
4240 return reset();
4241 };
4242 projection.translate = function(_) {
4243 if (!arguments.length) return [ x, y ];
4244 x = +_[0];
4245 y = +_[1];
4246 return reset();
4247 };
4248 projection.center = function(_) {
4249 if (!arguments.length) return [ λ * d3_degrees, φ * d3_degrees ];
4250 λ = _[0] % 360 * d3_radians;
4251 φ = _[1] % 360 * d3_radians;
4252 return reset();
4253 };
4254 projection.rotate = function(_) {
4255 if (!arguments.length) return [ δλ * d3_degrees, δφ * d3_degrees, δγ * d3_degrees ];
4256 δλ = _[0] % 360 * d3_radians;
4257 δφ = _[1] % 360 * d3_radians;
4258 δγ = _.length > 2 ? _[2] % 360 * d3_radians : 0;
4259 return reset();
4260 };
4261 d3.rebind(projection, projectResample, "precision");
4262 function reset() {
4263 projectRotate = d3_geo_compose(rotate = d3_geo_rotation(δλ, δφ, δγ), project);
4264 var center = project(λ, φ);
4265 δx = x - center[0] * k;
4266 δy = y + center[1] * k;
4267 return invalidate();
4268 }
4269 function invalidate() {
4270 if (stream) stream.valid = false, stream = null;
4271 return projection;
4272 }
4273 return function() {
4274 project = projectAt.apply(this, arguments);
4275 projection.invert = project.invert && invert;
4276 return reset();
4277 };
4278 }
4279 function d3_geo_projectionRadians(stream) {
4280 return d3_geo_transformPoint(stream, function(x, y) {
4281 stream.point(x * d3_radians, y * d3_radians);
4282 });
4283 }
4284 function d3_geo_equirectangular(λ, φ) {
4285 return [ λ, φ ];
4286 }
4287 (d3.geo.equirectangular = function() {
4288 return d3_geo_projection(d3_geo_equirectangular);
4289 }).raw = d3_geo_equirectangular.invert = d3_geo_equirectangular;
4290 d3.geo.rotation = function(rotate) {
4291 rotate = d3_geo_rotation(rotate[0] % 360 * d3_radians, rotate[1] * d3_radians, rotate.length > 2 ? rotate[2] * d3_radians : 0);
4292 function forward(coordinates) {
4293 coordinates = rotate(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
4294 return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
4295 }
4296 forward.invert = function(coordinates) {
4297 coordinates = rotate.invert(coordinates[0] * d3_radians, coordinates[1] * d3_radians);
4298 return coordinates[0] *= d3_degrees, coordinates[1] *= d3_degrees, coordinates;
4299 };
4300 return forward;
4301 };
4302 function d3_geo_identityRotation(λ, φ) {
4303 return [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
4304 }
4305 d3_geo_identityRotation.invert = d3_geo_equirectangular;
4306 function d3_geo_rotation(δλ, δφ, δγ) {
4307 return δλ ? δφ || δγ ? d3_geo_compose(d3_geo_rotationλ(δλ), d3_geo_rotationφγ(δφ, δγ)) : d3_geo_rotationλ(δλ) : δφ || δγ ? d3_geo_rotationφγ(δφ, δγ) : d3_geo_identityRotation;
4308 }
4309 function d3_geo_forwardRotationλ(δλ) {
4310 return function(λ, φ) {
4311 return λ += δλ, [ λ > π ? λ - τ : λ < -π ? λ + τ : λ, φ ];
4312 };
4313 }
4314 function d3_geo_rotationλ(δλ) {
4315 var rotation = d3_geo_forwardRotationλ(δλ);
4316 rotation.invert = d3_geo_forwardRotationλ(-δλ);
4317 return rotation;
4318 }
4319 function d3_geo_rotationφγ(δφ, δγ) {
4320 var cosδφ = Math.cos(δφ), sinδφ = Math.sin(δφ), cosδγ = Math.cos(δγ), sinδγ = Math.sin(δγ);
4321 function rotation(λ, φ) {
4322 var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδφ + x * sinδφ;
4323 return [ Math.atan2(y * cosδγ - k * sinδγ, x * cosδφ - z * sinδφ), d3_asin(k * cosδγ + y * sinδγ) ];
4324 }
4325 rotation.invert = function(λ, φ) {
4326 var cosφ = Math.cos(φ), x = Math.cos(λ) * cosφ, y = Math.sin(λ) * cosφ, z = Math.sin(φ), k = z * cosδγ - y * sinδγ;
4327 return [ Math.atan2(y * cosδγ + z * sinδγ, x * cosδφ + k * sinδφ), d3_asin(k * cosδφ - x * sinδφ) ];
4328 };
4329 return rotation;
4330 }
4331 d3.geo.circle = function() {
4332 var origin = [ 0, 0 ], angle, precision = 6, interpolate;
4333 function circle() {
4334 var center = typeof origin === "function" ? origin.apply(this, arguments) : origin, rotate = d3_geo_rotation(-center[0] * d3_radians, -center[1] * d3_radians, 0).invert, ring = [];
4335 interpolate(null, null, 1, {
4336 point: function(x, y) {
4337 ring.push(x = rotate(x, y));
4338 x[0] *= d3_degrees, x[1] *= d3_degrees;
4339 }
4340 });
4341 return {
4342 type: "Polygon",
4343 coordinates: [ ring ]
4344 };
4345 }
4346 circle.origin = function(x) {
4347 if (!arguments.length) return origin;
4348 origin = x;
4349 return circle;
4350 };
4351 circle.angle = function(x) {
4352 if (!arguments.length) return angle;
4353 interpolate = d3_geo_circleInterpolate((angle = +x) * d3_radians, precision * d3_radians);
4354 return circle;
4355 };
4356 circle.precision = function(_) {
4357 if (!arguments.length) return precision;
4358 interpolate = d3_geo_circleInterpolate(angle * d3_radians, (precision = +_) * d3_radians);
4359 return circle;
4360 };
4361 return circle.angle(90);
4362 };
4363 function d3_geo_circleInterpolate(radius, precision) {
4364 var cr = Math.cos(radius), sr = Math.sin(radius);
4365 return function(from, to, direction, listener) {
4366 var step = direction * precision;
4367 if (from != null) {
4368 from = d3_geo_circleAngle(cr, from);
4369 to = d3_geo_circleAngle(cr, to);
4370 if (direction > 0 ? from < to : from > to) from += direction * τ;
4371 } else {
4372 from = radius + direction * τ;
4373 to = radius - .5 * step;
4374 }
4375 for (var point, t = from; direction > 0 ? t > to : t < to; t -= step) {
4376 listener.point((point = d3_geo_spherical([ cr, -sr * Math.cos(t), -sr * Math.sin(t) ]))[0], point[1]);
4377 }
4378 };
4379 }
4380 function d3_geo_circleAngle(cr, point) {
4381 var a = d3_geo_cartesian(point);
4382 a[0] -= cr;
4383 d3_geo_cartesianNormalize(a);
4384 var angle = d3_acos(-a[1]);
4385 return ((-a[2] < 0 ? -angle : angle) + 2 * Math.PI - ε) % (2 * Math.PI);
4386 }
4387 d3.geo.distance = function(a, b) {
4388 var Δλ = (b[0] - a[0]) * d3_radians, φ0 = a[1] * d3_radians, φ1 = b[1] * d3_radians, sinΔλ = Math.sin(Δλ), cosΔλ = Math.cos(Δλ), sinφ0 = Math.sin(φ0), cosφ0 = Math.cos(φ0), sinφ1 = Math.sin(φ1), cosφ1 = Math.cos(φ1), t;
4389 return Math.atan2(Math.sqrt((t = cosφ1 * sinΔλ) * t + (t = cosφ0 * sinφ1 - sinφ0 * cosφ1 * cosΔλ) * t), sinφ0 * sinφ1 + cosφ0 * cosφ1 * cosΔλ);
4390 };
4391 d3.geo.graticule = function() {
4392 var x1, x0, X1, X0, y1, y0, Y1, Y0, dx = 10, dy = dx, DX = 90, DY = 360, x, y, X, Y, precision = 2.5;
4393 function graticule() {
4394 return {
4395 type: "MultiLineString",
4396 coordinates: lines()
4397 };
4398 }
4399 function lines() {
4400 return d3.range(Math.ceil(X0 / DX) * DX, X1, DX).map(X).concat(d3.range(Math.ceil(Y0 / DY) * DY, Y1, DY).map(Y)).concat(d3.range(Math.ceil(x0 / dx) * dx, x1, dx).filter(function(x) {
4401 return abs(x % DX) > ε;
4402 }).map(x)).concat(d3.range(Math.ceil(y0 / dy) * dy, y1, dy).filter(function(y) {
4403 return abs(y % DY) > ε;
4404 }).map(y));
4405 }
4406 graticule.lines = function() {
4407 return lines().map(function(coordinates) {
4408 return {
4409 type: "LineString",
4410 coordinates: coordinates
4411 };
4412 });
4413 };
4414 graticule.outline = function() {
4415 return {
4416 type: "Polygon",
4417 coordinates: [ X(X0).concat(Y(Y1).slice(1), X(X1).reverse().slice(1), Y(Y0).reverse().slice(1)) ]
4418 };
4419 };
4420 graticule.extent = function(_) {
4421 if (!arguments.length) return graticule.minorExtent();
4422 return graticule.majorExtent(_).minorExtent(_);
4423 };
4424 graticule.majorExtent = function(_) {
4425 if (!arguments.length) return [ [ X0, Y0 ], [ X1, Y1 ] ];
4426 X0 = +_[0][0], X1 = +_[1][0];
4427 Y0 = +_[0][1], Y1 = +_[1][1];
4428 if (X0 > X1) _ = X0, X0 = X1, X1 = _;
4429 if (Y0 > Y1) _ = Y0, Y0 = Y1, Y1 = _;
4430 return graticule.precision(precision);
4431 };
4432 graticule.minorExtent = function(_) {
4433 if (!arguments.length) return [ [ x0, y0 ], [ x1, y1 ] ];
4434 x0 = +_[0][0], x1 = +_[1][0];
4435 y0 = +_[0][1], y1 = +_[1][1];
4436 if (x0 > x1) _ = x0, x0 = x1, x1 = _;
4437 if (y0 > y1) _ = y0, y0 = y1, y1 = _;
4438 return graticule.precision(precision);
4439 };
4440 graticule.step = function(_) {
4441 if (!arguments.length) return graticule.minorStep();
4442 return graticule.majorStep(_).minorStep(_);
4443 };
4444 graticule.majorStep = function(_) {
4445 if (!arguments.length) return [ DX, DY ];
4446 DX = +_[0], DY = +_[1];
4447 return graticule;
4448 };
4449 graticule.minorStep = function(_) {
4450 if (!arguments.length) return [ dx, dy ];
4451 dx = +_[0], dy = +_[1];
4452 return graticule;
4453 };
4454 graticule.precision = function(_) {
4455 if (!arguments.length) return precision;
4456 precision = +_;
4457 x = d3_geo_graticuleX(y0, y1, 90);
4458 y = d3_geo_graticuleY(x0, x1, precision);
4459 X = d3_geo_graticuleX(Y0, Y1, 90);
4460 Y = d3_geo_graticuleY(X0, X1, precision);
4461 return graticule;
4462 };
4463 return graticule.majorExtent([ [ -180, -90 + ε ], [ 180, 90 - ε ] ]).minorExtent([ [ -180, -80 - ε ], [ 180, 80 + ε ] ]);
4464 };
4465 function d3_geo_graticuleX(y0, y1, dy) {
4466 var y = d3.range(y0, y1 - ε, dy).concat(y1);
4467 return function(x) {
4468 return y.map(function(y) {
4469 return [ x, y ];
4470 });
4471 };
4472 }
4473 function d3_geo_graticuleY(x0, x1, dx) {
4474 var x = d3.range(x0, x1 - ε, dx).concat(x1);
4475 return function(y) {
4476 return x.map(function(x) {
4477 return [ x, y ];
4478 });
4479 };
4480 }
4481 function d3_source(d) {
4482 return d.source;
4483 }
4484 function d3_target(d) {
4485 return d.target;
4486 }
4487 d3.geo.greatArc = function() {
4488 var source = d3_source, source_, target = d3_target, target_;
4489 function greatArc() {
4490 return {
4491 type: "LineString",
4492 coordinates: [ source_ || source.apply(this, arguments), target_ || target.apply(this, arguments) ]
4493 };
4494 }
4495 greatArc.distance = function() {
4496 return d3.geo.distance(source_ || source.apply(this, arguments), target_ || target.apply(this, arguments));
4497 };
4498 greatArc.source = function(_) {
4499 if (!arguments.length) return source;
4500 source = _, source_ = typeof _ === "function" ? null : _;
4501 return greatArc;
4502 };
4503 greatArc.target = function(_) {
4504 if (!arguments.length) return target;
4505 target = _, target_ = typeof _ === "function" ? null : _;
4506 return greatArc;
4507 };
4508 greatArc.precision = function() {
4509 return arguments.length ? greatArc : 0;
4510 };
4511 return greatArc;
4512 };
4513 d3.geo.interpolate = function(source, target) {
4514 return d3_geo_interpolate(source[0] * d3_radians, source[1] * d3_radians, target[0] * d3_radians, target[1] * d3_radians);
4515 };
4516 function d3_geo_interpolate(x0, y0, x1, y1) {
4517 var cy0 = Math.cos(y0), sy0 = Math.sin(y0), cy1 = Math.cos(y1), sy1 = Math.sin(y1), kx0 = cy0 * Math.cos(x0), ky0 = cy0 * Math.sin(x0), kx1 = cy1 * Math.cos(x1), ky1 = cy1 * Math.sin(x1), d = 2 * Math.asin(Math.sqrt(d3_haversin(y1 - y0) + cy0 * cy1 * d3_haversin(x1 - x0))), k = 1 / Math.sin(d);
4518 var interpolate = d ? function(t) {
4519 var B = Math.sin(t *= d) * k, A = Math.sin(d - t) * k, x = A * kx0 + B * kx1, y = A * ky0 + B * ky1, z = A * sy0 + B * sy1;
4520 return [ Math.atan2(y, x) * d3_degrees, Math.atan2(z, Math.sqrt(x * x + y * y)) * d3_degrees ];
4521 } : function() {
4522 return [ x0 * d3_degrees, y0 * d3_degrees ];
4523 };
4524 interpolate.distance = d;
4525 return interpolate;
4526 }
4527 d3.geo.length = function(object) {
4528 d3_geo_lengthSum = 0;
4529 d3.geo.stream(object, d3_geo_length);
4530 return d3_geo_lengthSum;
4531 };
4532 var d3_geo_lengthSum;
4533 var d3_geo_length = {
4534 sphere: d3_noop,
4535 point: d3_noop,
4536 lineStart: d3_geo_lengthLineStart,
4537 lineEnd: d3_noop,
4538 polygonStart: d3_noop,
4539 polygonEnd: d3_noop
4540 };
4541 function d3_geo_lengthLineStart() {
4542 var λ0, sinφ0, cosφ0;
4543 d3_geo_length.point = function(λ, φ) {
4544 λ0 = λ * d3_radians, sinφ0 = Math.sin(φ *= d3_radians), cosφ0 = Math.cos(φ);
4545 d3_geo_length.point = nextPoint;
4546 };
4547 d3_geo_length.lineEnd = function() {
4548 d3_geo_length.point = d3_geo_length.lineEnd = d3_noop;
4549 };
4550 function nextPoint(λ, φ) {
4551 var sinφ = Math.sin(φ *= d3_radians), cosφ = Math.cos(φ), t = abs((λ *= d3_radians) - λ0), cosΔλ = Math.cos(t);
4552 d3_geo_lengthSum += Math.atan2(Math.sqrt((t = cosφ * Math.sin(t)) * t + (t = cosφ0 * sinφ - sinφ0 * cosφ * cosΔλ) * t), sinφ0 * sinφ + cosφ0 * cosφ * cosΔλ);
4553 λ0 = λ, sinφ0 = sinφ, cosφ0 = cosφ;
4554 }
4555 }
4556 function d3_geo_azimuthal(scale, angle) {
4557 function azimuthal(λ, φ) {
4558 var cosλ = Math.cos(λ), cosφ = Math.cos(φ), k = scale(cosλ * cosφ);
4559 return [ k * cosφ * Math.sin(λ), k * Math.sin(φ) ];
4560 }
4561 azimuthal.invert = function(x, y) {
4562 var ρ = Math.sqrt(x * x + y * y), c = angle(ρ), sinc = Math.sin(c), cosc = Math.cos(c);
4563 return [ Math.atan2(x * sinc, ρ * cosc), Math.asin(ρ && y * sinc / ρ) ];
4564 };
4565 return azimuthal;
4566 }
4567 var d3_geo_azimuthalEqualArea = d3_geo_azimuthal(function(cosλcosφ) {
4568 return Math.sqrt(2 / (1 + cosλcosφ));
4569 }, function(ρ) {
4570 return 2 * Math.asin(ρ / 2);
4571 });
4572 (d3.geo.azimuthalEqualArea = function() {
4573 return d3_geo_projection(d3_geo_azimuthalEqualArea);
4574 }).raw = d3_geo_azimuthalEqualArea;
4575 var d3_geo_azimuthalEquidistant = d3_geo_azimuthal(function(cosλcosφ) {
4576 var c = Math.acos(cosλcosφ);
4577 return c && c / Math.sin(c);
4578 }, d3_identity);
4579 (d3.geo.azimuthalEquidistant = function() {
4580 return d3_geo_projection(d3_geo_azimuthalEquidistant);
4581 }).raw = d3_geo_azimuthalEquidistant;
4582 function d3_geo_conicConformal(φ0, φ1) {
4583 var cosφ0 = Math.cos(φ0), t = function(φ) {
4584 return Math.tan(π / 4 + φ / 2);
4585 }, n = φ0 === φ1 ? Math.sin(φ0) : Math.log(cosφ0 / Math.cos(φ1)) / Math.log(t(φ1) / t(φ0)), F = cosφ0 * Math.pow(t(φ0), n) / n;
4586 if (!n) return d3_geo_mercator;
4587 function forward(λ, φ) {
4588 if (F > 0) {
4589 if (φ < -halfπ + ε) φ = -halfπ + ε;
4590 } else {
4591 if (φ > halfπ - ε) φ = halfπ - ε;
4592 }
4593 var ρ = F / Math.pow(t(φ), n);
4594 return [ ρ * Math.sin(n * λ), F - ρ * Math.cos(n * λ) ];
4595 }
4596 forward.invert = function(x, y) {
4597 var ρ0_y = F - y, ρ = d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y);
4598 return [ Math.atan2(x, ρ0_y) / n, 2 * Math.atan(Math.pow(F / ρ, 1 / n)) - halfπ ];
4599 };
4600 return forward;
4601 }
4602 (d3.geo.conicConformal = function() {
4603 return d3_geo_conic(d3_geo_conicConformal);
4604 }).raw = d3_geo_conicConformal;
4605 function d3_geo_conicEquidistant(φ0, φ1) {
4606 var cosφ0 = Math.cos(φ0), n = φ0 === φ1 ? Math.sin(φ0) : (cosφ0 - Math.cos(φ1)) / (φ1 - φ0), G = cosφ0 / n + φ0;
4607 if (abs(n) < ε) return d3_geo_equirectangular;
4608 function forward(λ, φ) {
4609 var ρ = G - φ;
4610 return [ ρ * Math.sin(n * λ), G - ρ * Math.cos(n * λ) ];
4611 }
4612 forward.invert = function(x, y) {
4613 var ρ0_y = G - y;
4614 return [ Math.atan2(x, ρ0_y) / n, G - d3_sgn(n) * Math.sqrt(x * x + ρ0_y * ρ0_y) ];
4615 };
4616 return forward;
4617 }
4618 (d3.geo.conicEquidistant = function() {
4619 return d3_geo_conic(d3_geo_conicEquidistant);
4620 }).raw = d3_geo_conicEquidistant;
4621 var d3_geo_gnomonic = d3_geo_azimuthal(function(cosλcosφ) {
4622 return 1 / cosλcosφ;
4623 }, Math.atan);
4624 (d3.geo.gnomonic = function() {
4625 return d3_geo_projection(d3_geo_gnomonic);
4626 }).raw = d3_geo_gnomonic;
4627 function d3_geo_mercator(λ, φ) {
4628 return [ λ, Math.log(Math.tan(π / 4 + φ / 2)) ];
4629 }
4630 d3_geo_mercator.invert = function(x, y) {
4631 return [ x, 2 * Math.atan(Math.exp(y)) - halfπ ];
4632 };
4633 function d3_geo_mercatorProjection(project) {
4634 var m = d3_geo_projection(project), scale = m.scale, translate = m.translate, clipExtent = m.clipExtent, clipAuto;
4635 m.scale = function() {
4636 var v = scale.apply(m, arguments);
4637 return v === m ? clipAuto ? m.clipExtent(null) : m : v;
4638 };
4639 m.translate = function() {
4640 var v = translate.apply(m, arguments);
4641 return v === m ? clipAuto ? m.clipExtent(null) : m : v;
4642 };
4643 m.clipExtent = function(_) {
4644 var v = clipExtent.apply(m, arguments);
4645 if (v === m) {
4646 if (clipAuto = _ == null) {
4647 var k = π * scale(), t = translate();
4648 clipExtent([ [ t[0] - k, t[1] - k ], [ t[0] + k, t[1] + k ] ]);
4649 }
4650 } else if (clipAuto) {
4651 v = null;
4652 }
4653 return v;
4654 };
4655 return m.clipExtent(null);
4656 }
4657 (d3.geo.mercator = function() {
4658 return d3_geo_mercatorProjection(d3_geo_mercator);
4659 }).raw = d3_geo_mercator;
4660 var d3_geo_orthographic = d3_geo_azimuthal(function() {
4661 return 1;
4662 }, Math.asin);
4663 (d3.geo.orthographic = function() {
4664 return d3_geo_projection(d3_geo_orthographic);
4665 }).raw = d3_geo_orthographic;
4666 var d3_geo_stereographic = d3_geo_azimuthal(function(cosλcosφ) {
4667 return 1 / (1 + cosλcosφ);
4668 }, function(ρ) {
4669 return 2 * Math.atan(ρ);
4670 });
4671 (d3.geo.stereographic = function() {
4672 return d3_geo_projection(d3_geo_stereographic);
4673 }).raw = d3_geo_stereographic;
4674 function d3_geo_transverseMercator(λ, φ) {
4675 return [ Math.log(Math.tan(π / 4 + φ / 2)), -λ ];
4676 }
4677 d3_geo_transverseMercator.invert = function(x, y) {
4678 return [ -y, 2 * Math.atan(Math.exp(x)) - halfπ ];
4679 };
4680 (d3.geo.transverseMercator = function() {
4681 var projection = d3_geo_mercatorProjection(d3_geo_transverseMercator), center = projection.center, rotate = projection.rotate;
4682 projection.center = function(_) {
4683 return _ ? center([ -_[1], _[0] ]) : (_ = center(), [ _[1], -_[0] ]);
4684 };
4685 projection.rotate = function(_) {
4686 return _ ? rotate([ _[0], _[1], _.length > 2 ? _[2] + 90 : 90 ]) : (_ = rotate(),
4687 [ _[0], _[1], _[2] - 90 ]);
4688 };
4689 return rotate([ 0, 0, 90 ]);
4690 }).raw = d3_geo_transverseMercator;
4691 d3.geom = {};
4692 function d3_geom_pointX(d) {
4693 return d[0];
4694 }
4695 function d3_geom_pointY(d) {
4696 return d[1];
4697 }
4698 d3.geom.hull = function(vertices) {
4699 var x = d3_geom_pointX, y = d3_geom_pointY;
4700 if (arguments.length) return hull(vertices);
4701 function hull(data) {
4702 if (data.length < 3) return [];
4703 var fx = d3_functor(x), fy = d3_functor(y), i, n = data.length, points = [], flippedPoints = [];
4704 for (i = 0; i < n; i++) {
4705 points.push([ +fx.call(this, data[i], i), +fy.call(this, data[i], i), i ]);
4706 }
4707 points.sort(d3_geom_hullOrder);
4708 for (i = 0; i < n; i++) flippedPoints.push([ points[i][0], -points[i][1] ]);
4709 var upper = d3_geom_hullUpper(points), lower = d3_geom_hullUpper(flippedPoints);
4710 var skipLeft = lower[0] === upper[0], skipRight = lower[lower.length - 1] === upper[upper.length - 1], polygon = [];
4711 for (i = upper.length - 1; i >= 0; --i) polygon.push(data[points[upper[i]][2]]);
4712 for (i = +skipLeft; i < lower.length - skipRight; ++i) polygon.push(data[points[lower[i]][2]]);
4713 return polygon;
4714 }
4715 hull.x = function(_) {
4716 return arguments.length ? (x = _, hull) : x;
4717 };
4718 hull.y = function(_) {
4719 return arguments.length ? (y = _, hull) : y;
4720 };
4721 return hull;
4722 };
4723 function d3_geom_hullUpper(points) {
4724 var n = points.length, hull = [ 0, 1 ], hs = 2;
4725 for (var i = 2; i < n; i++) {
4726 while (hs > 1 && d3_cross2d(points[hull[hs - 2]], points[hull[hs - 1]], points[i]) <= 0) --hs;
4727 hull[hs++] = i;
4728 }
4729 return hull.slice(0, hs);
4730 }
4731 function d3_geom_hullOrder(a, b) {
4732 return a[0] - b[0] || a[1] - b[1];
4733 }
4734 d3.geom.polygon = function(coordinates) {
4735 d3_subclass(coordinates, d3_geom_polygonPrototype);
4736 return coordinates;
4737 };
4738 var d3_geom_polygonPrototype = d3.geom.polygon.prototype = [];
4739 d3_geom_polygonPrototype.area = function() {
4740 var i = -1, n = this.length, a, b = this[n - 1], area = 0;
4741 while (++i < n) {
4742 a = b;
4743 b = this[i];
4744 area += a[1] * b[0] - a[0] * b[1];
4745 }
4746 return area * .5;
4747 };
4748 d3_geom_polygonPrototype.centroid = function(k) {
4749 var i = -1, n = this.length, x = 0, y = 0, a, b = this[n - 1], c;
4750 if (!arguments.length) k = -1 / (6 * this.area());
4751 while (++i < n) {
4752 a = b;
4753 b = this[i];
4754 c = a[0] * b[1] - b[0] * a[1];
4755 x += (a[0] + b[0]) * c;
4756 y += (a[1] + b[1]) * c;
4757 }
4758 return [ x * k, y * k ];
4759 };
4760 d3_geom_polygonPrototype.clip = function(subject) {
4761 var input, closed = d3_geom_polygonClosed(subject), i = -1, n = this.length - d3_geom_polygonClosed(this), j, m, a = this[n - 1], b, c, d;
4762 while (++i < n) {
4763 input = subject.slice();
4764 subject.length = 0;
4765 b = this[i];
4766 c = input[(m = input.length - closed) - 1];
4767 j = -1;
4768 while (++j < m) {
4769 d = input[j];
4770 if (d3_geom_polygonInside(d, a, b)) {
4771 if (!d3_geom_polygonInside(c, a, b)) {
4772 subject.push(d3_geom_polygonIntersect(c, d, a, b));
4773 }
4774 subject.push(d);
4775 } else if (d3_geom_polygonInside(c, a, b)) {
4776 subject.push(d3_geom_polygonIntersect(c, d, a, b));
4777 }
4778 c = d;
4779 }
4780 if (closed) subject.push(subject[0]);
4781 a = b;
4782 }
4783 return subject;
4784 };
4785 function d3_geom_polygonInside(p, a, b) {
4786 return (b[0] - a[0]) * (p[1] - a[1]) < (b[1] - a[1]) * (p[0] - a[0]);
4787 }
4788 function d3_geom_polygonIntersect(c, d, a, b) {
4789 var x1 = c[0], x3 = a[0], x21 = d[0] - x1, x43 = b[0] - x3, y1 = c[1], y3 = a[1], y21 = d[1] - y1, y43 = b[1] - y3, ua = (x43 * (y1 - y3) - y43 * (x1 - x3)) / (y43 * x21 - x43 * y21);
4790 return [ x1 + ua * x21, y1 + ua * y21 ];
4791 }
4792 function d3_geom_polygonClosed(coordinates) {
4793 var a = coordinates[0], b = coordinates[coordinates.length - 1];
4794 return !(a[0] - b[0] || a[1] - b[1]);
4795 }
4796 var d3_geom_voronoiEdges, d3_geom_voronoiCells, d3_geom_voronoiBeaches, d3_geom_voronoiBeachPool = [], d3_geom_voronoiFirstCircle, d3_geom_voronoiCircles, d3_geom_voronoiCirclePool = [];
4797 function d3_geom_voronoiBeach() {
4798 d3_geom_voronoiRedBlackNode(this);
4799 this.edge = this.site = this.circle = null;
4800 }
4801 function d3_geom_voronoiCreateBeach(site) {
4802 var beach = d3_geom_voronoiBeachPool.pop() || new d3_geom_voronoiBeach();
4803 beach.site = site;
4804 return beach;
4805 }
4806 function d3_geom_voronoiDetachBeach(beach) {
4807 d3_geom_voronoiDetachCircle(beach);
4808 d3_geom_voronoiBeaches.remove(beach);
4809 d3_geom_voronoiBeachPool.push(beach);
4810 d3_geom_voronoiRedBlackNode(beach);
4811 }
4812 function d3_geom_voronoiRemoveBeach(beach) {
4813 var circle = beach.circle, x = circle.x, y = circle.cy, vertex = {
4814 x: x,
4815 y: y
4816 }, previous = beach.P, next = beach.N, disappearing = [ beach ];
4817 d3_geom_voronoiDetachBeach(beach);
4818 var lArc = previous;
4819 while (lArc.circle && abs(x - lArc.circle.x) < ε && abs(y - lArc.circle.cy) < ε) {
4820 previous = lArc.P;
4821 disappearing.unshift(lArc);
4822 d3_geom_voronoiDetachBeach(lArc);
4823 lArc = previous;
4824 }
4825 disappearing.unshift(lArc);
4826 d3_geom_voronoiDetachCircle(lArc);
4827 var rArc = next;
4828 while (rArc.circle && abs(x - rArc.circle.x) < ε && abs(y - rArc.circle.cy) < ε) {
4829 next = rArc.N;
4830 disappearing.push(rArc);
4831 d3_geom_voronoiDetachBeach(rArc);
4832 rArc = next;
4833 }
4834 disappearing.push(rArc);
4835 d3_geom_voronoiDetachCircle(rArc);
4836 var nArcs = disappearing.length, iArc;
4837 for (iArc = 1; iArc < nArcs; ++iArc) {
4838 rArc = disappearing[iArc];
4839 lArc = disappearing[iArc - 1];
4840 d3_geom_voronoiSetEdgeEnd(rArc.edge, lArc.site, rArc.site, vertex);
4841 }
4842 lArc = disappearing[0];
4843 rArc = disappearing[nArcs - 1];
4844 rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, rArc.site, null, vertex);
4845 d3_geom_voronoiAttachCircle(lArc);
4846 d3_geom_voronoiAttachCircle(rArc);
4847 }
4848 function d3_geom_voronoiAddBeach(site) {
4849 var x = site.x, directrix = site.y, lArc, rArc, dxl, dxr, node = d3_geom_voronoiBeaches._;
4850 while (node) {
4851 dxl = d3_geom_voronoiLeftBreakPoint(node, directrix) - x;
4852 if (dxl > ε) node = node.L; else {
4853 dxr = x - d3_geom_voronoiRightBreakPoint(node, directrix);
4854 if (dxr > ε) {
4855 if (!node.R) {
4856 lArc = node;
4857 break;
4858 }
4859 node = node.R;
4860 } else {
4861 if (dxl > -ε) {
4862 lArc = node.P;
4863 rArc = node;
4864 } else if (dxr > -ε) {
4865 lArc = node;
4866 rArc = node.N;
4867 } else {
4868 lArc = rArc = node;
4869 }
4870 break;
4871 }
4872 }
4873 }
4874 var newArc = d3_geom_voronoiCreateBeach(site);
4875 d3_geom_voronoiBeaches.insert(lArc, newArc);
4876 if (!lArc && !rArc) return;
4877 if (lArc === rArc) {
4878 d3_geom_voronoiDetachCircle(lArc);
4879 rArc = d3_geom_voronoiCreateBeach(lArc.site);
4880 d3_geom_voronoiBeaches.insert(newArc, rArc);
4881 newArc.edge = rArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
4882 d3_geom_voronoiAttachCircle(lArc);
4883 d3_geom_voronoiAttachCircle(rArc);
4884 return;
4885 }
4886 if (!rArc) {
4887 newArc.edge = d3_geom_voronoiCreateEdge(lArc.site, newArc.site);
4888 return;
4889 }
4890 d3_geom_voronoiDetachCircle(lArc);
4891 d3_geom_voronoiDetachCircle(rArc);
4892 var lSite = lArc.site, ax = lSite.x, ay = lSite.y, bx = site.x - ax, by = site.y - ay, rSite = rArc.site, cx = rSite.x - ax, cy = rSite.y - ay, d = 2 * (bx * cy - by * cx), hb = bx * bx + by * by, hc = cx * cx + cy * cy, vertex = {
4893 x: (cy * hb - by * hc) / d + ax,
4894 y: (bx * hc - cx * hb) / d + ay
4895 };
4896 d3_geom_voronoiSetEdgeEnd(rArc.edge, lSite, rSite, vertex);
4897 newArc.edge = d3_geom_voronoiCreateEdge(lSite, site, null, vertex);
4898 rArc.edge = d3_geom_voronoiCreateEdge(site, rSite, null, vertex);
4899 d3_geom_voronoiAttachCircle(lArc);
4900 d3_geom_voronoiAttachCircle(rArc);
4901 }
4902 function d3_geom_voronoiLeftBreakPoint(arc, directrix) {
4903 var site = arc.site, rfocx = site.x, rfocy = site.y, pby2 = rfocy - directrix;
4904 if (!pby2) return rfocx;
4905 var lArc = arc.P;
4906 if (!lArc) return -Infinity;
4907 site = lArc.site;
4908 var lfocx = site.x, lfocy = site.y, plby2 = lfocy - directrix;
4909 if (!plby2) return lfocx;
4910 var hl = lfocx - rfocx, aby2 = 1 / pby2 - 1 / plby2, b = hl / plby2;
4911 if (aby2) return (-b + Math.sqrt(b * b - 2 * aby2 * (hl * hl / (-2 * plby2) - lfocy + plby2 / 2 + rfocy - pby2 / 2))) / aby2 + rfocx;
4912 return (rfocx + lfocx) / 2;
4913 }
4914 function d3_geom_voronoiRightBreakPoint(arc, directrix) {
4915 var rArc = arc.N;
4916 if (rArc) return d3_geom_voronoiLeftBreakPoint(rArc, directrix);
4917 var site = arc.site;
4918 return site.y === directrix ? site.x : Infinity;
4919 }
4920 function d3_geom_voronoiCell(site) {
4921 this.site = site;
4922 this.edges = [];
4923 }
4924 d3_geom_voronoiCell.prototype.prepare = function() {
4925 var halfEdges = this.edges, iHalfEdge = halfEdges.length, edge;
4926 while (iHalfEdge--) {
4927 edge = halfEdges[iHalfEdge].edge;
4928 if (!edge.b || !edge.a) halfEdges.splice(iHalfEdge, 1);
4929 }
4930 halfEdges.sort(d3_geom_voronoiHalfEdgeOrder);
4931 return halfEdges.length;
4932 };
4933 function d3_geom_voronoiCloseCells(extent) {
4934 var x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], x2, y2, x3, y3, cells = d3_geom_voronoiCells, iCell = cells.length, cell, iHalfEdge, halfEdges, nHalfEdges, start, end;
4935 while (iCell--) {
4936 cell = cells[iCell];
4937 if (!cell || !cell.prepare()) continue;
4938 halfEdges = cell.edges;
4939 nHalfEdges = halfEdges.length;
4940 iHalfEdge = 0;
4941 while (iHalfEdge < nHalfEdges) {
4942 end = halfEdges[iHalfEdge].end(), x3 = end.x, y3 = end.y;
4943 start = halfEdges[++iHalfEdge % nHalfEdges].start(), x2 = start.x, y2 = start.y;
4944 if (abs(x3 - x2) > ε || abs(y3 - y2) > ε) {
4945 halfEdges.splice(iHalfEdge, 0, new d3_geom_voronoiHalfEdge(d3_geom_voronoiCreateBorderEdge(cell.site, end, abs(x3 - x0) < ε && y1 - y3 > ε ? {
4946 x: x0,
4947 y: abs(x2 - x0) < ε ? y2 : y1
4948 } : abs(y3 - y1) < ε && x1 - x3 > ε ? {
4949 x: abs(y2 - y1) < ε ? x2 : x1,
4950 y: y1
4951 } : abs(x3 - x1) < ε && y3 - y0 > ε ? {
4952 x: x1,
4953 y: abs(x2 - x1) < ε ? y2 : y0
4954 } : abs(y3 - y0) < ε && x3 - x0 > ε ? {
4955 x: abs(y2 - y0) < ε ? x2 : x0,
4956 y: y0
4957 } : null), cell.site, null));
4958 ++nHalfEdges;
4959 }
4960 }
4961 }
4962 }
4963 function d3_geom_voronoiHalfEdgeOrder(a, b) {
4964 return b.angle - a.angle;
4965 }
4966 function d3_geom_voronoiCircle() {
4967 d3_geom_voronoiRedBlackNode(this);
4968 this.x = this.y = this.arc = this.site = this.cy = null;
4969 }
4970 function d3_geom_voronoiAttachCircle(arc) {
4971 var lArc = arc.P, rArc = arc.N;
4972 if (!lArc || !rArc) return;
4973 var lSite = lArc.site, cSite = arc.site, rSite = rArc.site;
4974 if (lSite === rSite) return;
4975 var bx = cSite.x, by = cSite.y, ax = lSite.x - bx, ay = lSite.y - by, cx = rSite.x - bx, cy = rSite.y - by;
4976 var d = 2 * (ax * cy - ay * cx);
4977 if (d >= -ε2) return;
4978 var ha = ax * ax + ay * ay, hc = cx * cx + cy * cy, x = (cy * ha - ay * hc) / d, y = (ax * hc - cx * ha) / d, cy = y + by;
4979 var circle = d3_geom_voronoiCirclePool.pop() || new d3_geom_voronoiCircle();
4980 circle.arc = arc;
4981 circle.site = cSite;
4982 circle.x = x + bx;
4983 circle.y = cy + Math.sqrt(x * x + y * y);
4984 circle.cy = cy;
4985 arc.circle = circle;
4986 var before = null, node = d3_geom_voronoiCircles._;
4987 while (node) {
4988 if (circle.y < node.y || circle.y === node.y && circle.x <= node.x) {
4989 if (node.L) node = node.L; else {
4990 before = node.P;
4991 break;
4992 }
4993 } else {
4994 if (node.R) node = node.R; else {
4995 before = node;
4996 break;
4997 }
4998 }
4999 }
5000 d3_geom_voronoiCircles.insert(before, circle);
5001 if (!before) d3_geom_voronoiFirstCircle = circle;
5002 }
5003 function d3_geom_voronoiDetachCircle(arc) {
5004 var circle = arc.circle;
5005 if (circle) {
5006 if (!circle.P) d3_geom_voronoiFirstCircle = circle.N;
5007 d3_geom_voronoiCircles.remove(circle);
5008 d3_geom_voronoiCirclePool.push(circle);
5009 d3_geom_voronoiRedBlackNode(circle);
5010 arc.circle = null;
5011 }
5012 }
5013 function d3_geom_voronoiClipEdges(extent) {
5014 var edges = d3_geom_voronoiEdges, clip = d3_geom_clipLine(extent[0][0], extent[0][1], extent[1][0], extent[1][1]), i = edges.length, e;
5015 while (i--) {
5016 e = edges[i];
5017 if (!d3_geom_voronoiConnectEdge(e, extent) || !clip(e) || abs(e.a.x - e.b.x) < ε && abs(e.a.y - e.b.y) < ε) {
5018 e.a = e.b = null;
5019 edges.splice(i, 1);
5020 }
5021 }
5022 }
5023 function d3_geom_voronoiConnectEdge(edge, extent) {
5024 var vb = edge.b;
5025 if (vb) return true;
5026 var va = edge.a, x0 = extent[0][0], x1 = extent[1][0], y0 = extent[0][1], y1 = extent[1][1], lSite = edge.l, rSite = edge.r, lx = lSite.x, ly = lSite.y, rx = rSite.x, ry = rSite.y, fx = (lx + rx) / 2, fy = (ly + ry) / 2, fm, fb;
5027 if (ry === ly) {
5028 if (fx < x0 || fx >= x1) return;
5029 if (lx > rx) {
5030 if (!va) va = {
5031 x: fx,
5032 y: y0
5033 }; else if (va.y >= y1) return;
5034 vb = {
5035 x: fx,
5036 y: y1
5037 };
5038 } else {
5039 if (!va) va = {
5040 x: fx,
5041 y: y1
5042 }; else if (va.y < y0) return;
5043 vb = {
5044 x: fx,
5045 y: y0
5046 };
5047 }
5048 } else {
5049 fm = (lx - rx) / (ry - ly);
5050 fb = fy - fm * fx;
5051 if (fm < -1 || fm > 1) {
5052 if (lx > rx) {
5053 if (!va) va = {
5054 x: (y0 - fb) / fm,
5055 y: y0
5056 }; else if (va.y >= y1) return;
5057 vb = {
5058 x: (y1 - fb) / fm,
5059 y: y1
5060 };
5061 } else {
5062 if (!va) va = {
5063 x: (y1 - fb) / fm,
5064 y: y1
5065 }; else if (va.y < y0) return;
5066 vb = {
5067 x: (y0 - fb) / fm,
5068 y: y0
5069 };
5070 }
5071 } else {
5072 if (ly < ry) {
5073 if (!va) va = {
5074 x: x0,
5075 y: fm * x0 + fb
5076 }; else if (va.x >= x1) return;
5077 vb = {
5078 x: x1,
5079 y: fm * x1 + fb
5080 };
5081 } else {
5082 if (!va) va = {
5083 x: x1,
5084 y: fm * x1 + fb
5085 }; else if (va.x < x0) return;
5086 vb = {
5087 x: x0,
5088 y: fm * x0 + fb
5089 };
5090 }
5091 }
5092 }
5093 edge.a = va;
5094 edge.b = vb;
5095 return true;
5096 }
5097 function d3_geom_voronoiEdge(lSite, rSite) {
5098 this.l = lSite;
5099 this.r = rSite;
5100 this.a = this.b = null;
5101 }
5102 function d3_geom_voronoiCreateEdge(lSite, rSite, va, vb) {
5103 var edge = new d3_geom_voronoiEdge(lSite, rSite);
5104 d3_geom_voronoiEdges.push(edge);
5105 if (va) d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, va);
5106 if (vb) d3_geom_voronoiSetEdgeEnd(edge, rSite, lSite, vb);
5107 d3_geom_voronoiCells[lSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, lSite, rSite));
5108 d3_geom_voronoiCells[rSite.i].edges.push(new d3_geom_voronoiHalfEdge(edge, rSite, lSite));
5109 return edge;
5110 }
5111 function d3_geom_voronoiCreateBorderEdge(lSite, va, vb) {
5112 var edge = new d3_geom_voronoiEdge(lSite, null);
5113 edge.a = va;
5114 edge.b = vb;
5115 d3_geom_voronoiEdges.push(edge);
5116 return edge;
5117 }
5118 function d3_geom_voronoiSetEdgeEnd(edge, lSite, rSite, vertex) {
5119 if (!edge.a && !edge.b) {
5120 edge.a = vertex;
5121 edge.l = lSite;
5122 edge.r = rSite;
5123 } else if (edge.l === rSite) {
5124 edge.b = vertex;
5125 } else {
5126 edge.a = vertex;
5127 }
5128 }
5129 function d3_geom_voronoiHalfEdge(edge, lSite, rSite) {
5130 var va = edge.a, vb = edge.b;
5131 this.edge = edge;
5132 this.site = lSite;
5133 this.angle = rSite ? Math.atan2(rSite.y - lSite.y, rSite.x - lSite.x) : edge.l === lSite ? Math.atan2(vb.x - va.x, va.y - vb.y) : Math.atan2(va.x - vb.x, vb.y - va.y);
5134 }
5135 d3_geom_voronoiHalfEdge.prototype = {
5136 start: function() {
5137 return this.edge.l === this.site ? this.edge.a : this.edge.b;
5138 },
5139 end: function() {
5140 return this.edge.l === this.site ? this.edge.b : this.edge.a;
5141 }
5142 };
5143 function d3_geom_voronoiRedBlackTree() {
5144 this._ = null;
5145 }
5146 function d3_geom_voronoiRedBlackNode(node) {
5147 node.U = node.C = node.L = node.R = node.P = node.N = null;
5148 }
5149 d3_geom_voronoiRedBlackTree.prototype = {
5150 insert: function(after, node) {
5151 var parent, grandpa, uncle;
5152 if (after) {
5153 node.P = after;
5154 node.N = after.N;
5155 if (after.N) after.N.P = node;
5156 after.N = node;
5157 if (after.R) {
5158 after = after.R;
5159 while (after.L) after = after.L;
5160 after.L = node;
5161 } else {
5162 after.R = node;
5163 }
5164 parent = after;
5165 } else if (this._) {
5166 after = d3_geom_voronoiRedBlackFirst(this._);
5167 node.P = null;
5168 node.N = after;
5169 after.P = after.L = node;
5170 parent = after;
5171 } else {
5172 node.P = node.N = null;
5173 this._ = node;
5174 parent = null;
5175 }
5176 node.L = node.R = null;
5177 node.U = parent;
5178 node.C = true;
5179 after = node;
5180 while (parent && parent.C) {
5181 grandpa = parent.U;
5182 if (parent === grandpa.L) {
5183 uncle = grandpa.R;
5184 if (uncle && uncle.C) {
5185 parent.C = uncle.C = false;
5186 grandpa.C = true;
5187 after = grandpa;
5188 } else {
5189 if (after === parent.R) {
5190 d3_geom_voronoiRedBlackRotateLeft(this, parent);
5191 after = parent;
5192 parent = after.U;
5193 }
5194 parent.C = false;
5195 grandpa.C = true;
5196 d3_geom_voronoiRedBlackRotateRight(this, grandpa);
5197 }
5198 } else {
5199 uncle = grandpa.L;
5200 if (uncle && uncle.C) {
5201 parent.C = uncle.C = false;
5202 grandpa.C = true;
5203 after = grandpa;
5204 } else {
5205 if (after === parent.L) {
5206 d3_geom_voronoiRedBlackRotateRight(this, parent);
5207 after = parent;
5208 parent = after.U;
5209 }
5210 parent.C = false;
5211 grandpa.C = true;
5212 d3_geom_voronoiRedBlackRotateLeft(this, grandpa);
5213 }
5214 }
5215 parent = after.U;
5216 }
5217 this._.C = false;
5218 },
5219 remove: function(node) {
5220 if (node.N) node.N.P = node.P;
5221 if (node.P) node.P.N = node.N;
5222 node.N = node.P = null;
5223 var parent = node.U, sibling, left = node.L, right = node.R, next, red;
5224 if (!left) next = right; else if (!right) next = left; else next = d3_geom_voronoiRedBlackFirst(right);
5225 if (parent) {
5226 if (parent.L === node) parent.L = next; else parent.R = next;
5227 } else {
5228 this._ = next;
5229 }
5230 if (left && right) {
5231 red = next.C;
5232 next.C = node.C;
5233 next.L = left;
5234 left.U = next;
5235 if (next !== right) {
5236 parent = next.U;
5237 next.U = node.U;
5238 node = next.R;
5239 parent.L = node;
5240 next.R = right;
5241 right.U = next;
5242 } else {
5243 next.U = parent;
5244 parent = next;
5245 node = next.R;
5246 }
5247 } else {
5248 red = node.C;
5249 node = next;
5250 }
5251 if (node) node.U = parent;
5252 if (red) return;
5253 if (node && node.C) {
5254 node.C = false;
5255 return;
5256 }
5257 do {
5258 if (node === this._) break;
5259 if (node === parent.L) {
5260 sibling = parent.R;
5261 if (sibling.C) {
5262 sibling.C = false;
5263 parent.C = true;
5264 d3_geom_voronoiRedBlackRotateLeft(this, parent);
5265 sibling = parent.R;
5266 }
5267 if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
5268 if (!sibling.R || !sibling.R.C) {
5269 sibling.L.C = false;
5270 sibling.C = true;
5271 d3_geom_voronoiRedBlackRotateRight(this, sibling);
5272 sibling = parent.R;
5273 }
5274 sibling.C = parent.C;
5275 parent.C = sibling.R.C = false;
5276 d3_geom_voronoiRedBlackRotateLeft(this, parent);
5277 node = this._;
5278 break;
5279 }
5280 } else {
5281 sibling = parent.L;
5282 if (sibling.C) {
5283 sibling.C = false;
5284 parent.C = true;
5285 d3_geom_voronoiRedBlackRotateRight(this, parent);
5286 sibling = parent.L;
5287 }
5288 if (sibling.L && sibling.L.C || sibling.R && sibling.R.C) {
5289 if (!sibling.L || !sibling.L.C) {
5290 sibling.R.C = false;
5291 sibling.C = true;
5292 d3_geom_voronoiRedBlackRotateLeft(this, sibling);
5293 sibling = parent.L;
5294 }
5295 sibling.C = parent.C;
5296 parent.C = sibling.L.C = false;
5297 d3_geom_voronoiRedBlackRotateRight(this, parent);
5298 node = this._;
5299 break;
5300 }
5301 }
5302 sibling.C = true;
5303 node = parent;
5304 parent = parent.U;
5305 } while (!node.C);
5306 if (node) node.C = false;
5307 }
5308 };
5309 function d3_geom_voronoiRedBlackRotateLeft(tree, node) {
5310 var p = node, q = node.R, parent = p.U;
5311 if (parent) {
5312 if (parent.L === p) parent.L = q; else parent.R = q;
5313 } else {
5314 tree._ = q;
5315 }
5316 q.U = parent;
5317 p.U = q;
5318 p.R = q.L;
5319 if (p.R) p.R.U = p;
5320 q.L = p;
5321 }
5322 function d3_geom_voronoiRedBlackRotateRight(tree, node) {
5323 var p = node, q = node.L, parent = p.U;
5324 if (parent) {
5325 if (parent.L === p) parent.L = q; else parent.R = q;
5326 } else {
5327 tree._ = q;
5328 }
5329 q.U = parent;
5330 p.U = q;
5331 p.L = q.R;
5332 if (p.L) p.L.U = p;
5333 q.R = p;
5334 }
5335 function d3_geom_voronoiRedBlackFirst(node) {
5336 while (node.L) node = node.L;
5337 return node;
5338 }
5339 function d3_geom_voronoi(sites, bbox) {
5340 var site = sites.sort(d3_geom_voronoiVertexOrder).pop(), x0, y0, circle;
5341 d3_geom_voronoiEdges = [];
5342 d3_geom_voronoiCells = new Array(sites.length);
5343 d3_geom_voronoiBeaches = new d3_geom_voronoiRedBlackTree();
5344 d3_geom_voronoiCircles = new d3_geom_voronoiRedBlackTree();
5345 while (true) {
5346 circle = d3_geom_voronoiFirstCircle;
5347 if (site && (!circle || site.y < circle.y || site.y === circle.y && site.x < circle.x)) {
5348 if (site.x !== x0 || site.y !== y0) {
5349 d3_geom_voronoiCells[site.i] = new d3_geom_voronoiCell(site);
5350 d3_geom_voronoiAddBeach(site);
5351 x0 = site.x, y0 = site.y;
5352 }
5353 site = sites.pop();
5354 } else if (circle) {
5355 d3_geom_voronoiRemoveBeach(circle.arc);
5356 } else {
5357 break;
5358 }
5359 }
5360 if (bbox) d3_geom_voronoiClipEdges(bbox), d3_geom_voronoiCloseCells(bbox);
5361 var diagram = {
5362 cells: d3_geom_voronoiCells,
5363 edges: d3_geom_voronoiEdges
5364 };
5365 d3_geom_voronoiBeaches = d3_geom_voronoiCircles = d3_geom_voronoiEdges = d3_geom_voronoiCells = null;
5366 return diagram;
5367 }
5368 function d3_geom_voronoiVertexOrder(a, b) {
5369 return b.y - a.y || b.x - a.x;
5370 }
5371 d3.geom.voronoi = function(points) {
5372 var x = d3_geom_pointX, y = d3_geom_pointY, fx = x, fy = y, clipExtent = d3_geom_voronoiClipExtent;
5373 if (points) return voronoi(points);
5374 function voronoi(data) {
5375 var polygons = new Array(data.length), x0 = clipExtent[0][0], y0 = clipExtent[0][1], x1 = clipExtent[1][0], y1 = clipExtent[1][1];
5376 d3_geom_voronoi(sites(data), clipExtent).cells.forEach(function(cell, i) {
5377 var edges = cell.edges, site = cell.site, polygon = polygons[i] = edges.length ? edges.map(function(e) {
5378 var s = e.start();
5379 return [ s.x, s.y ];
5380 }) : site.x >= x0 && site.x <= x1 && site.y >= y0 && site.y <= y1 ? [ [ x0, y1 ], [ x1, y1 ], [ x1, y0 ], [ x0, y0 ] ] : [];
5381 polygon.point = data[i];
5382 });
5383 return polygons;
5384 }
5385 function sites(data) {
5386 return data.map(function(d, i) {
5387 return {
5388 x: Math.round(fx(d, i) / ε) * ε,
5389 y: Math.round(fy(d, i) / ε) * ε,
5390 i: i
5391 };
5392 });
5393 }
5394 voronoi.links = function(data) {
5395 return d3_geom_voronoi(sites(data)).edges.filter(function(edge) {
5396 return edge.l && edge.r;
5397 }).map(function(edge) {
5398 return {
5399 source: data[edge.l.i],
5400 target: data[edge.r.i]
5401 };
5402 });
5403 };
5404 voronoi.triangles = function(data) {
5405 var triangles = [];
5406 d3_geom_voronoi(sites(data)).cells.forEach(function(cell, i) {
5407 var site = cell.site, edges = cell.edges.sort(d3_geom_voronoiHalfEdgeOrder), j = -1, m = edges.length, e0, s0, e1 = edges[m - 1].edge, s1 = e1.l === site ? e1.r : e1.l;
5408 while (++j < m) {
5409 e0 = e1;
5410 s0 = s1;
5411 e1 = edges[j].edge;
5412 s1 = e1.l === site ? e1.r : e1.l;
5413 if (i < s0.i && i < s1.i && d3_geom_voronoiTriangleArea(site, s0, s1) < 0) {
5414 triangles.push([ data[i], data[s0.i], data[s1.i] ]);
5415 }
5416 }
5417 });
5418 return triangles;
5419 };
5420 voronoi.x = function(_) {
5421 return arguments.length ? (fx = d3_functor(x = _), voronoi) : x;
5422 };
5423 voronoi.y = function(_) {
5424 return arguments.length ? (fy = d3_functor(y = _), voronoi) : y;
5425 };
5426 voronoi.clipExtent = function(_) {
5427 if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent;
5428 clipExtent = _ == null ? d3_geom_voronoiClipExtent : _;
5429 return voronoi;
5430 };
5431 voronoi.size = function(_) {
5432 if (!arguments.length) return clipExtent === d3_geom_voronoiClipExtent ? null : clipExtent && clipExtent[1];
5433 return voronoi.clipExtent(_ && [ [ 0, 0 ], _ ]);
5434 };
5435 return voronoi;
5436 };
5437 var d3_geom_voronoiClipExtent = [ [ -1e6, -1e6 ], [ 1e6, 1e6 ] ];
5438 function d3_geom_voronoiTriangleArea(a, b, c) {
5439 return (a.x - c.x) * (b.y - a.y) - (a.x - b.x) * (c.y - a.y);
5440 }
5441 d3.geom.delaunay = function(vertices) {
5442 return d3.geom.voronoi().triangles(vertices);
5443 };
5444 d3.geom.quadtree = function(points, x1, y1, x2, y2) {
5445 var x = d3_geom_pointX, y = d3_geom_pointY, compat;
5446 if (compat = arguments.length) {
5447 x = d3_geom_quadtreeCompatX;
5448 y = d3_geom_quadtreeCompatY;
5449 if (compat === 3) {
5450 y2 = y1;
5451 x2 = x1;
5452 y1 = x1 = 0;
5453 }
5454 return quadtree(points);
5455 }
5456 function quadtree(data) {
5457 var d, fx = d3_functor(x), fy = d3_functor(y), xs, ys, i, n, x1_, y1_, x2_, y2_;
5458 if (x1 != null) {
5459 x1_ = x1, y1_ = y1, x2_ = x2, y2_ = y2;
5460 } else {
5461 x2_ = y2_ = -(x1_ = y1_ = Infinity);
5462 xs = [], ys = [];
5463 n = data.length;
5464 if (compat) for (i = 0; i < n; ++i) {
5465 d = data[i];
5466 if (d.x < x1_) x1_ = d.x;
5467 if (d.y < y1_) y1_ = d.y;
5468 if (d.x > x2_) x2_ = d.x;
5469 if (d.y > y2_) y2_ = d.y;
5470 xs.push(d.x);
5471 ys.push(d.y);
5472 } else for (i = 0; i < n; ++i) {
5473 var x_ = +fx(d = data[i], i), y_ = +fy(d, i);
5474 if (x_ < x1_) x1_ = x_;
5475 if (y_ < y1_) y1_ = y_;
5476 if (x_ > x2_) x2_ = x_;
5477 if (y_ > y2_) y2_ = y_;
5478 xs.push(x_);
5479 ys.push(y_);
5480 }
5481 }
5482 var dx = x2_ - x1_, dy = y2_ - y1_;
5483 if (dx > dy) y2_ = y1_ + dx; else x2_ = x1_ + dy;
5484 function insert(n, d, x, y, x1, y1, x2, y2) {
5485 if (isNaN(x) || isNaN(y)) return;
5486 if (n.leaf) {
5487 var nx = n.x, ny = n.y;
5488 if (nx != null) {
5489 if (abs(nx - x) + abs(ny - y) < .01) {
5490 insertChild(n, d, x, y, x1, y1, x2, y2);
5491 } else {
5492 var nPoint = n.point;
5493 n.x = n.y = n.point = null;
5494 insertChild(n, nPoint, nx, ny, x1, y1, x2, y2);
5495 insertChild(n, d, x, y, x1, y1, x2, y2);
5496 }
5497 } else {
5498 n.x = x, n.y = y, n.point = d;
5499 }
5500 } else {
5501 insertChild(n, d, x, y, x1, y1, x2, y2);
5502 }
5503 }
5504 function insertChild(n, d, x, y, x1, y1, x2, y2) {
5505 var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, right = x >= sx, bottom = y >= sy, i = (bottom << 1) + right;
5506 n.leaf = false;
5507 n = n.nodes[i] || (n.nodes[i] = d3_geom_quadtreeNode());
5508 if (right) x1 = sx; else x2 = sx;
5509 if (bottom) y1 = sy; else y2 = sy;
5510 insert(n, d, x, y, x1, y1, x2, y2);
5511 }
5512 var root = d3_geom_quadtreeNode();
5513 root.add = function(d) {
5514 insert(root, d, +fx(d, ++i), +fy(d, i), x1_, y1_, x2_, y2_);
5515 };
5516 root.visit = function(f) {
5517 d3_geom_quadtreeVisit(f, root, x1_, y1_, x2_, y2_);
5518 };
5519 i = -1;
5520 if (x1 == null) {
5521 while (++i < n) {
5522 insert(root, data[i], xs[i], ys[i], x1_, y1_, x2_, y2_);
5523 }
5524 --i;
5525 } else data.forEach(root.add);
5526 xs = ys = data = d = null;
5527 return root;
5528 }
5529 quadtree.x = function(_) {
5530 return arguments.length ? (x = _, quadtree) : x;
5531 };
5532 quadtree.y = function(_) {
5533 return arguments.length ? (y = _, quadtree) : y;
5534 };
5535 quadtree.extent = function(_) {
5536 if (!arguments.length) return x1 == null ? null : [ [ x1, y1 ], [ x2, y2 ] ];
5537 if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = +_[0][0], y1 = +_[0][1], x2 = +_[1][0],
5538 y2 = +_[1][1];
5539 return quadtree;
5540 };
5541 quadtree.size = function(_) {
5542 if (!arguments.length) return x1 == null ? null : [ x2 - x1, y2 - y1 ];
5543 if (_ == null) x1 = y1 = x2 = y2 = null; else x1 = y1 = 0, x2 = +_[0], y2 = +_[1];
5544 return quadtree;
5545 };
5546 return quadtree;
5547 };
5548 function d3_geom_quadtreeCompatX(d) {
5549 return d.x;
5550 }
5551 function d3_geom_quadtreeCompatY(d) {
5552 return d.y;
5553 }
5554 function d3_geom_quadtreeNode() {
5555 return {
5556 leaf: true,
5557 nodes: [],
5558 point: null,
5559 x: null,
5560 y: null
5561 };
5562 }
5563 function d3_geom_quadtreeVisit(f, node, x1, y1, x2, y2) {
5564 if (!f(node, x1, y1, x2, y2)) {
5565 var sx = (x1 + x2) * .5, sy = (y1 + y2) * .5, children = node.nodes;
5566 if (children[0]) d3_geom_quadtreeVisit(f, children[0], x1, y1, sx, sy);
5567 if (children[1]) d3_geom_quadtreeVisit(f, children[1], sx, y1, x2, sy);
5568 if (children[2]) d3_geom_quadtreeVisit(f, children[2], x1, sy, sx, y2);
5569 if (children[3]) d3_geom_quadtreeVisit(f, children[3], sx, sy, x2, y2);
5570 }
5571 }
5572 d3.interpolateRgb = d3_interpolateRgb;
5573 function d3_interpolateRgb(a, b) {
5574 a = d3.rgb(a);
5575 b = d3.rgb(b);
5576 var ar = a.r, ag = a.g, ab = a.b, br = b.r - ar, bg = b.g - ag, bb = b.b - ab;
5577 return function(t) {
5578 return "#" + d3_rgb_hex(Math.round(ar + br * t)) + d3_rgb_hex(Math.round(ag + bg * t)) + d3_rgb_hex(Math.round(ab + bb * t));
5579 };
5580 }
5581 d3.interpolateObject = d3_interpolateObject;
5582 function d3_interpolateObject(a, b) {
5583 var i = {}, c = {}, k;
5584 for (k in a) {
5585 if (k in b) {
5586 i[k] = d3_interpolate(a[k], b[k]);
5587 } else {
5588 c[k] = a[k];
5589 }
5590 }
5591 for (k in b) {
5592 if (!(k in a)) {
5593 c[k] = b[k];
5594 }
5595 }
5596 return function(t) {
5597 for (k in i) c[k] = i[k](t);
5598 return c;
5599 };
5600 }
5601 d3.interpolateNumber = d3_interpolateNumber;
5602 function d3_interpolateNumber(a, b) {
5603 b -= a = +a;
5604 return function(t) {
5605 return a + b * t;
5606 };
5607 }
5608 d3.interpolateString = d3_interpolateString;
5609 function d3_interpolateString(a, b) {
5610 var bi = d3_interpolate_numberA.lastIndex = d3_interpolate_numberB.lastIndex = 0, am, bm, bs, i = -1, s = [], q = [];
5611 a = a + "", b = b + "";
5612 while ((am = d3_interpolate_numberA.exec(a)) && (bm = d3_interpolate_numberB.exec(b))) {
5613 if ((bs = bm.index) > bi) {
5614 bs = b.substring(bi, bs);
5615 if (s[i]) s[i] += bs; else s[++i] = bs;
5616 }
5617 if ((am = am[0]) === (bm = bm[0])) {
5618 if (s[i]) s[i] += bm; else s[++i] = bm;
5619 } else {
5620 s[++i] = null;
5621 q.push({
5622 i: i,
5623 x: d3_interpolateNumber(am, bm)
5624 });
5625 }
5626 bi = d3_interpolate_numberB.lastIndex;
5627 }
5628 if (bi < b.length) {
5629 bs = b.substring(bi);
5630 if (s[i]) s[i] += bs; else s[++i] = bs;
5631 }
5632 return s.length < 2 ? q[0] ? (b = q[0].x, function(t) {
5633 return b(t) + "";
5634 }) : function() {
5635 return b;
5636 } : (b = q.length, function(t) {
5637 for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
5638 return s.join("");
5639 });
5640 }
5641 var d3_interpolate_numberA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g, d3_interpolate_numberB = new RegExp(d3_interpolate_numberA.source, "g");
5642 d3.interpolate = d3_interpolate;
5643 function d3_interpolate(a, b) {
5644 var i = d3.interpolators.length, f;
5645 while (--i >= 0 && !(f = d3.interpolators[i](a, b))) ;
5646 return f;
5647 }
5648 d3.interpolators = [ function(a, b) {
5649 var t = typeof b;
5650 return (t === "string" ? d3_rgb_names.has(b) || /^(#|rgb\(|hsl\()/.test(b) ? d3_interpolateRgb : d3_interpolateString : b instanceof d3_color ? d3_interpolateRgb : Array.isArray(b) ? d3_interpolateArray : t === "object" && isNaN(b) ? d3_interpolateObject : d3_interpolateNumber)(a, b);
5651 } ];
5652 d3.interpolateArray = d3_interpolateArray;
5653 function d3_interpolateArray(a, b) {
5654 var x = [], c = [], na = a.length, nb = b.length, n0 = Math.min(a.length, b.length), i;
5655 for (i = 0; i < n0; ++i) x.push(d3_interpolate(a[i], b[i]));
5656 for (;i < na; ++i) c[i] = a[i];
5657 for (;i < nb; ++i) c[i] = b[i];
5658 return function(t) {
5659 for (i = 0; i < n0; ++i) c[i] = x[i](t);
5660 return c;
5661 };
5662 }
5663 var d3_ease_default = function() {
5664 return d3_identity;
5665 };
5666 var d3_ease = d3.map({
5667 linear: d3_ease_default,
5668 poly: d3_ease_poly,
5669 quad: function() {
5670 return d3_ease_quad;
5671 },
5672 cubic: function() {
5673 return d3_ease_cubic;
5674 },
5675 sin: function() {
5676 return d3_ease_sin;
5677 },
5678 exp: function() {
5679 return d3_ease_exp;
5680 },
5681 circle: function() {
5682 return d3_ease_circle;
5683 },
5684 elastic: d3_ease_elastic,
5685 back: d3_ease_back,
5686 bounce: function() {
5687 return d3_ease_bounce;
5688 }
5689 });
5690 var d3_ease_mode = d3.map({
5691 "in": d3_identity,
5692 out: d3_ease_reverse,
5693 "in-out": d3_ease_reflect,
5694 "out-in": function(f) {
5695 return d3_ease_reflect(d3_ease_reverse(f));
5696 }
5697 });
5698 d3.ease = function(name) {
5699 var i = name.indexOf("-"), t = i >= 0 ? name.substring(0, i) : name, m = i >= 0 ? name.substring(i + 1) : "in";
5700 t = d3_ease.get(t) || d3_ease_default;
5701 m = d3_ease_mode.get(m) || d3_identity;
5702 return d3_ease_clamp(m(t.apply(null, d3_arraySlice.call(arguments, 1))));
5703 };
5704 function d3_ease_clamp(f) {
5705 return function(t) {
5706 return t <= 0 ? 0 : t >= 1 ? 1 : f(t);
5707 };
5708 }
5709 function d3_ease_reverse(f) {
5710 return function(t) {
5711 return 1 - f(1 - t);
5712 };
5713 }
5714 function d3_ease_reflect(f) {
5715 return function(t) {
5716 return .5 * (t < .5 ? f(2 * t) : 2 - f(2 - 2 * t));
5717 };
5718 }
5719 function d3_ease_quad(t) {
5720 return t * t;
5721 }
5722 function d3_ease_cubic(t) {
5723 return t * t * t;
5724 }
5725 function d3_ease_cubicInOut(t) {
5726 if (t <= 0) return 0;
5727 if (t >= 1) return 1;
5728 var t2 = t * t, t3 = t2 * t;
5729 return 4 * (t < .5 ? t3 : 3 * (t - t2) + t3 - .75);
5730 }
5731 function d3_ease_poly(e) {
5732 return function(t) {
5733 return Math.pow(t, e);
5734 };
5735 }
5736 function d3_ease_sin(t) {
5737 return 1 - Math.cos(t * halfπ);
5738 }
5739 function d3_ease_exp(t) {
5740 return Math.pow(2, 10 * (t - 1));
5741 }
5742 function d3_ease_circle(t) {
5743 return 1 - Math.sqrt(1 - t * t);
5744 }
5745 function d3_ease_elastic(a, p) {
5746 var s;
5747 if (arguments.length < 2) p = .45;
5748 if (arguments.length) s = p / τ * Math.asin(1 / a); else a = 1, s = p / 4;
5749 return function(t) {
5750 return 1 + a * Math.pow(2, -10 * t) * Math.sin((t - s) * τ / p);
5751 };
5752 }
5753 function d3_ease_back(s) {
5754 if (!s) s = 1.70158;
5755 return function(t) {
5756 return t * t * ((s + 1) * t - s);
5757 };
5758 }
5759 function d3_ease_bounce(t) {
5760 return t < 1 / 2.75 ? 7.5625 * t * t : t < 2 / 2.75 ? 7.5625 * (t -= 1.5 / 2.75) * t + .75 : t < 2.5 / 2.75 ? 7.5625 * (t -= 2.25 / 2.75) * t + .9375 : 7.5625 * (t -= 2.625 / 2.75) * t + .984375;
5761 }
5762 d3.interpolateHcl = d3_interpolateHcl;
5763 function d3_interpolateHcl(a, b) {
5764 a = d3.hcl(a);
5765 b = d3.hcl(b);
5766 var ah = a.h, ac = a.c, al = a.l, bh = b.h - ah, bc = b.c - ac, bl = b.l - al;
5767 if (isNaN(bc)) bc = 0, ac = isNaN(ac) ? b.c : ac;
5768 if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
5769 return function(t) {
5770 return d3_hcl_lab(ah + bh * t, ac + bc * t, al + bl * t) + "";
5771 };
5772 }
5773 d3.interpolateHsl = d3_interpolateHsl;
5774 function d3_interpolateHsl(a, b) {
5775 a = d3.hsl(a);
5776 b = d3.hsl(b);
5777 var ah = a.h, as = a.s, al = a.l, bh = b.h - ah, bs = b.s - as, bl = b.l - al;
5778 if (isNaN(bs)) bs = 0, as = isNaN(as) ? b.s : as;
5779 if (isNaN(bh)) bh = 0, ah = isNaN(ah) ? b.h : ah; else if (bh > 180) bh -= 360; else if (bh < -180) bh += 360;
5780 return function(t) {
5781 return d3_hsl_rgb(ah + bh * t, as + bs * t, al + bl * t) + "";
5782 };
5783 }
5784 d3.interpolateLab = d3_interpolateLab;
5785 function d3_interpolateLab(a, b) {
5786 a = d3.lab(a);
5787 b = d3.lab(b);
5788 var al = a.l, aa = a.a, ab = a.b, bl = b.l - al, ba = b.a - aa, bb = b.b - ab;
5789 return function(t) {
5790 return d3_lab_rgb(al + bl * t, aa + ba * t, ab + bb * t) + "";
5791 };
5792 }
5793 d3.interpolateRound = d3_interpolateRound;
5794 function d3_interpolateRound(a, b) {
5795 b -= a;
5796 return function(t) {
5797 return Math.round(a + b * t);
5798 };
5799 }
5800 d3.transform = function(string) {
5801 var g = d3_document.createElementNS(d3.ns.prefix.svg, "g");
5802 return (d3.transform = function(string) {
5803 if (string != null) {
5804 g.setAttribute("transform", string);
5805 var t = g.transform.baseVal.consolidate();
5806 }
5807 return new d3_transform(t ? t.matrix : d3_transformIdentity);
5808 })(string);
5809 };
5810 function d3_transform(m) {
5811 var r0 = [ m.a, m.b ], r1 = [ m.c, m.d ], kx = d3_transformNormalize(r0), kz = d3_transformDot(r0, r1), ky = d3_transformNormalize(d3_transformCombine(r1, r0, -kz)) || 0;
5812 if (r0[0] * r1[1] < r1[0] * r0[1]) {
5813 r0[0] *= -1;
5814 r0[1] *= -1;
5815 kx *= -1;
5816 kz *= -1;
5817 }
5818 this.rotate = (kx ? Math.atan2(r0[1], r0[0]) : Math.atan2(-r1[0], r1[1])) * d3_degrees;
5819 this.translate = [ m.e, m.f ];
5820 this.scale = [ kx, ky ];
5821 this.skew = ky ? Math.atan2(kz, ky) * d3_degrees : 0;
5822 }
5823 d3_transform.prototype.toString = function() {
5824 return "translate(" + this.translate + ")rotate(" + this.rotate + ")skewX(" + this.skew + ")scale(" + this.scale + ")";
5825 };
5826 function d3_transformDot(a, b) {
5827 return a[0] * b[0] + a[1] * b[1];
5828 }
5829 function d3_transformNormalize(a) {
5830 var k = Math.sqrt(d3_transformDot(a, a));
5831 if (k) {
5832 a[0] /= k;
5833 a[1] /= k;
5834 }
5835 return k;
5836 }
5837 function d3_transformCombine(a, b, k) {
5838 a[0] += k * b[0];
5839 a[1] += k * b[1];
5840 return a;
5841 }
5842 var d3_transformIdentity = {
5843 a: 1,
5844 b: 0,
5845 c: 0,
5846 d: 1,
5847 e: 0,
5848 f: 0
5849 };
5850 d3.interpolateTransform = d3_interpolateTransform;
5851 function d3_interpolateTransform(a, b) {
5852 var s = [], q = [], n, A = d3.transform(a), B = d3.transform(b), ta = A.translate, tb = B.translate, ra = A.rotate, rb = B.rotate, wa = A.skew, wb = B.skew, ka = A.scale, kb = B.scale;
5853 if (ta[0] != tb[0] || ta[1] != tb[1]) {
5854 s.push("translate(", null, ",", null, ")");
5855 q.push({
5856 i: 1,
5857 x: d3_interpolateNumber(ta[0], tb[0])
5858 }, {
5859 i: 3,
5860 x: d3_interpolateNumber(ta[1], tb[1])
5861 });
5862 } else if (tb[0] || tb[1]) {
5863 s.push("translate(" + tb + ")");
5864 } else {
5865 s.push("");
5866 }
5867 if (ra != rb) {
5868 if (ra - rb > 180) rb += 360; else if (rb - ra > 180) ra += 360;
5869 q.push({
5870 i: s.push(s.pop() + "rotate(", null, ")") - 2,
5871 x: d3_interpolateNumber(ra, rb)
5872 });
5873 } else if (rb) {
5874 s.push(s.pop() + "rotate(" + rb + ")");
5875 }
5876 if (wa != wb) {
5877 q.push({
5878 i: s.push(s.pop() + "skewX(", null, ")") - 2,
5879 x: d3_interpolateNumber(wa, wb)
5880 });
5881 } else if (wb) {
5882 s.push(s.pop() + "skewX(" + wb + ")");
5883 }
5884 if (ka[0] != kb[0] || ka[1] != kb[1]) {
5885 n = s.push(s.pop() + "scale(", null, ",", null, ")");
5886 q.push({
5887 i: n - 4,
5888 x: d3_interpolateNumber(ka[0], kb[0])
5889 }, {
5890 i: n - 2,
5891 x: d3_interpolateNumber(ka[1], kb[1])
5892 });
5893 } else if (kb[0] != 1 || kb[1] != 1) {
5894 s.push(s.pop() + "scale(" + kb + ")");
5895 }
5896 n = q.length;
5897 return function(t) {
5898 var i = -1, o;
5899 while (++i < n) s[(o = q[i]).i] = o.x(t);
5900 return s.join("");
5901 };
5902 }
5903 function d3_uninterpolateNumber(a, b) {
5904 b = b - (a = +a) ? 1 / (b - a) : 0;
5905 return function(x) {
5906 return (x - a) * b;
5907 };
5908 }
5909 function d3_uninterpolateClamp(a, b) {
5910 b = b - (a = +a) ? 1 / (b - a) : 0;
5911 return function(x) {
5912 return Math.max(0, Math.min(1, (x - a) * b));
5913 };
5914 }
5915 d3.layout = {};
5916 d3.layout.bundle = function() {
5917 return function(links) {
5918 var paths = [], i = -1, n = links.length;
5919 while (++i < n) paths.push(d3_layout_bundlePath(links[i]));
5920 return paths;
5921 };
5922 };
5923 function d3_layout_bundlePath(link) {
5924 var start = link.source, end = link.target, lca = d3_layout_bundleLeastCommonAncestor(start, end), points = [ start ];
5925 while (start !== lca) {
5926 start = start.parent;
5927 points.push(start);
5928 }
5929 var k = points.length;
5930 while (end !== lca) {
5931 points.splice(k, 0, end);
5932 end = end.parent;
5933 }
5934 return points;
5935 }
5936 function d3_layout_bundleAncestors(node) {
5937 var ancestors = [], parent = node.parent;
5938 while (parent != null) {
5939 ancestors.push(node);
5940 node = parent;
5941 parent = parent.parent;
5942 }
5943 ancestors.push(node);
5944 return ancestors;
5945 }
5946 function d3_layout_bundleLeastCommonAncestor(a, b) {
5947 if (a === b) return a;
5948 var aNodes = d3_layout_bundleAncestors(a), bNodes = d3_layout_bundleAncestors(b), aNode = aNodes.pop(), bNode = bNodes.pop(), sharedNode = null;
5949 while (aNode === bNode) {
5950 sharedNode = aNode;
5951 aNode = aNodes.pop();
5952 bNode = bNodes.pop();
5953 }
5954 return sharedNode;
5955 }
5956 d3.layout.chord = function() {
5957 var chord = {}, chords, groups, matrix, n, padding = 0, sortGroups, sortSubgroups, sortChords;
5958 function relayout() {
5959 var subgroups = {}, groupSums = [], groupIndex = d3.range(n), subgroupIndex = [], k, x, x0, i, j;
5960 chords = [];
5961 groups = [];
5962 k = 0, i = -1;
5963 while (++i < n) {
5964 x = 0, j = -1;
5965 while (++j < n) {
5966 x += matrix[i][j];
5967 }
5968 groupSums.push(x);
5969 subgroupIndex.push(d3.range(n));
5970 k += x;
5971 }
5972 if (sortGroups) {
5973 groupIndex.sort(function(a, b) {
5974 return sortGroups(groupSums[a], groupSums[b]);
5975 });
5976 }
5977 if (sortSubgroups) {
5978 subgroupIndex.forEach(function(d, i) {
5979 d.sort(function(a, b) {
5980 return sortSubgroups(matrix[i][a], matrix[i][b]);
5981 });
5982 });
5983 }
5984 k = (τ - padding * n) / k;
5985 x = 0, i = -1;
5986 while (++i < n) {
5987 x0 = x, j = -1;
5988 while (++j < n) {
5989 var di = groupIndex[i], dj = subgroupIndex[di][j], v = matrix[di][dj], a0 = x, a1 = x += v * k;
5990 subgroups[di + "-" + dj] = {
5991 index: di,
5992 subindex: dj,
5993 startAngle: a0,
5994 endAngle: a1,
5995 value: v
5996 };
5997 }
5998 groups[di] = {
5999 index: di,
6000 startAngle: x0,
6001 endAngle: x,
6002 value: (x - x0) / k
6003 };
6004 x += padding;
6005 }
6006 i = -1;
6007 while (++i < n) {
6008 j = i - 1;
6009 while (++j < n) {
6010 var source = subgroups[i + "-" + j], target = subgroups[j + "-" + i];
6011 if (source.value || target.value) {
6012 chords.push(source.value < target.value ? {
6013 source: target,
6014 target: source
6015 } : {
6016 source: source,
6017 target: target
6018 });
6019 }
6020 }
6021 }
6022 if (sortChords) resort();
6023 }
6024 function resort() {
6025 chords.sort(function(a, b) {
6026 return sortChords((a.source.value + a.target.value) / 2, (b.source.value + b.target.value) / 2);
6027 });
6028 }
6029 chord.matrix = function(x) {
6030 if (!arguments.length) return matrix;
6031 n = (matrix = x) && matrix.length;
6032 chords = groups = null;
6033 return chord;
6034 };
6035 chord.padding = function(x) {
6036 if (!arguments.length) return padding;
6037 padding = x;
6038 chords = groups = null;
6039 return chord;
6040 };
6041 chord.sortGroups = function(x) {
6042 if (!arguments.length) return sortGroups;
6043 sortGroups = x;
6044 chords = groups = null;
6045 return chord;
6046 };
6047 chord.sortSubgroups = function(x) {
6048 if (!arguments.length) return sortSubgroups;
6049 sortSubgroups = x;
6050 chords = null;
6051 return chord;
6052 };
6053 chord.sortChords = function(x) {
6054 if (!arguments.length) return sortChords;
6055 sortChords = x;
6056 if (chords) resort();
6057 return chord;
6058 };
6059 chord.chords = function() {
6060 if (!chords) relayout();
6061 return chords;
6062 };
6063 chord.groups = function() {
6064 if (!groups) relayout();
6065 return groups;
6066 };
6067 return chord;
6068 };
6069 d3.layout.force = function() {
6070 var force = {}, event = d3.dispatch("start", "tick", "end"), size = [ 1, 1 ], drag, alpha, friction = .9, linkDistance = d3_layout_forceLinkDistance, linkStrength = d3_layout_forceLinkStrength, charge = -30, chargeDistance2 = d3_layout_forceChargeDistance2, gravity = .1, theta2 = .64, nodes = [], links = [], distances, strengths, charges;
6071 function repulse(node) {
6072 return function(quad, x1, _, x2) {
6073 if (quad.point !== node) {
6074 var dx = quad.cx - node.x, dy = quad.cy - node.y, dw = x2 - x1, dn = dx * dx + dy * dy;
6075 if (dw * dw / theta2 < dn) {
6076 if (dn < chargeDistance2) {
6077 var k = quad.charge / dn;
6078 node.px -= dx * k;
6079 node.py -= dy * k;
6080 }
6081 return true;
6082 }
6083 if (quad.point && dn && dn < chargeDistance2) {
6084 var k = quad.pointCharge / dn;
6085 node.px -= dx * k;
6086 node.py -= dy * k;
6087 }
6088 }
6089 return !quad.charge;
6090 };
6091 }
6092 force.tick = function() {
6093 if ((alpha *= .99) < .005) {
6094 event.end({
6095 type: "end",
6096 alpha: alpha = 0
6097 });
6098 return true;
6099 }
6100 var n = nodes.length, m = links.length, q, i, o, s, t, l, k, x, y;
6101 for (i = 0; i < m; ++i) {
6102 o = links[i];
6103 s = o.source;
6104 t = o.target;
6105 x = t.x - s.x;
6106 y = t.y - s.y;
6107 if (l = x * x + y * y) {
6108 l = alpha * strengths[i] * ((l = Math.sqrt(l)) - distances[i]) / l;
6109 x *= l;
6110 y *= l;
6111 t.x -= x * (k = s.weight / (t.weight + s.weight));
6112 t.y -= y * k;
6113 s.x += x * (k = 1 - k);
6114 s.y += y * k;
6115 }
6116 }
6117 if (k = alpha * gravity) {
6118 x = size[0] / 2;
6119 y = size[1] / 2;
6120 i = -1;
6121 if (k) while (++i < n) {
6122 o = nodes[i];
6123 o.x += (x - o.x) * k;
6124 o.y += (y - o.y) * k;
6125 }
6126 }
6127 if (charge) {
6128 d3_layout_forceAccumulate(q = d3.geom.quadtree(nodes), alpha, charges);
6129 i = -1;
6130 while (++i < n) {
6131 if (!(o = nodes[i]).fixed) {
6132 q.visit(repulse(o));
6133 }
6134 }
6135 }
6136 i = -1;
6137 while (++i < n) {
6138 o = nodes[i];
6139 if (o.fixed) {
6140 o.x = o.px;
6141 o.y = o.py;
6142 } else {
6143 o.x -= (o.px - (o.px = o.x)) * friction;
6144 o.y -= (o.py - (o.py = o.y)) * friction;
6145 }
6146 }
6147 event.tick({
6148 type: "tick",
6149 alpha: alpha
6150 });
6151 };
6152 force.nodes = function(x) {
6153 if (!arguments.length) return nodes;
6154 nodes = x;
6155 return force;
6156 };
6157 force.links = function(x) {
6158 if (!arguments.length) return links;
6159 links = x;
6160 return force;
6161 };
6162 force.size = function(x) {
6163 if (!arguments.length) return size;
6164 size = x;
6165 return force;
6166 };
6167 force.linkDistance = function(x) {
6168 if (!arguments.length) return linkDistance;
6169 linkDistance = typeof x === "function" ? x : +x;
6170 return force;
6171 };
6172 force.distance = force.linkDistance;
6173 force.linkStrength = function(x) {
6174 if (!arguments.length) return linkStrength;
6175 linkStrength = typeof x === "function" ? x : +x;
6176 return force;
6177 };
6178 force.friction = function(x) {
6179 if (!arguments.length) return friction;
6180 friction = +x;
6181 return force;
6182 };
6183 force.charge = function(x) {
6184 if (!arguments.length) return charge;
6185 charge = typeof x === "function" ? x : +x;
6186 return force;
6187 };
6188 force.chargeDistance = function(x) {
6189 if (!arguments.length) return Math.sqrt(chargeDistance2);
6190 chargeDistance2 = x * x;
6191 return force;
6192 };
6193 force.gravity = function(x) {
6194 if (!arguments.length) return gravity;
6195 gravity = +x;
6196 return force;
6197 };
6198 force.theta = function(x) {
6199 if (!arguments.length) return Math.sqrt(theta2);
6200 theta2 = x * x;
6201 return force;
6202 };
6203 force.alpha = function(x) {
6204 if (!arguments.length) return alpha;
6205 x = +x;
6206 if (alpha) {
6207 if (x > 0) alpha = x; else alpha = 0;
6208 } else if (x > 0) {
6209 event.start({
6210 type: "start",
6211 alpha: alpha = x
6212 });
6213 d3.timer(force.tick);
6214 }
6215 return force;
6216 };
6217 force.start = function() {
6218 var i, n = nodes.length, m = links.length, w = size[0], h = size[1], neighbors, o;
6219 for (i = 0; i < n; ++i) {
6220 (o = nodes[i]).index = i;
6221 o.weight = 0;
6222 }
6223 for (i = 0; i < m; ++i) {
6224 o = links[i];
6225 if (typeof o.source == "number") o.source = nodes[o.source];
6226 if (typeof o.target == "number") o.target = nodes[o.target];
6227 ++o.source.weight;
6228 ++o.target.weight;
6229 }
6230 for (i = 0; i < n; ++i) {
6231 o = nodes[i];
6232 if (isNaN(o.x)) o.x = position("x", w);
6233 if (isNaN(o.y)) o.y = position("y", h);
6234 if (isNaN(o.px)) o.px = o.x;
6235 if (isNaN(o.py)) o.py = o.y;
6236 }
6237 distances = [];
6238 if (typeof linkDistance === "function") for (i = 0; i < m; ++i) distances[i] = +linkDistance.call(this, links[i], i); else for (i = 0; i < m; ++i) distances[i] = linkDistance;
6239 strengths = [];
6240 if (typeof linkStrength === "function") for (i = 0; i < m; ++i) strengths[i] = +linkStrength.call(this, links[i], i); else for (i = 0; i < m; ++i) strengths[i] = linkStrength;
6241 charges = [];
6242 if (typeof charge === "function") for (i = 0; i < n; ++i) charges[i] = +charge.call(this, nodes[i], i); else for (i = 0; i < n; ++i) charges[i] = charge;
6243 function position(dimension, size) {
6244 if (!neighbors) {
6245 neighbors = new Array(n);
6246 for (j = 0; j < n; ++j) {
6247 neighbors[j] = [];
6248 }
6249 for (j = 0; j < m; ++j) {
6250 var o = links[j];
6251 neighbors[o.source.index].push(o.target);
6252 neighbors[o.target.index].push(o.source);
6253 }
6254 }
6255 var candidates = neighbors[i], j = -1, m = candidates.length, x;
6256 while (++j < m) if (!isNaN(x = candidates[j][dimension])) return x;
6257 return Math.random() * size;
6258 }
6259 return force.resume();
6260 };
6261 force.resume = function() {
6262 return force.alpha(.1);
6263 };
6264 force.stop = function() {
6265 return force.alpha(0);
6266 };
6267 force.drag = function() {
6268 if (!drag) drag = d3.behavior.drag().origin(d3_identity).on("dragstart.force", d3_layout_forceDragstart).on("drag.force", dragmove).on("dragend.force", d3_layout_forceDragend);
6269 if (!arguments.length) return drag;
6270 this.on("mouseover.force", d3_layout_forceMouseover).on("mouseout.force", d3_layout_forceMouseout).call(drag);
6271 };
6272 function dragmove(d) {
6273 d.px = d3.event.x, d.py = d3.event.y;
6274 force.resume();
6275 }
6276 return d3.rebind(force, event, "on");
6277 };
6278 function d3_layout_forceDragstart(d) {
6279 d.fixed |= 2;
6280 }
6281 function d3_layout_forceDragend(d) {
6282 d.fixed &= ~6;
6283 }
6284 function d3_layout_forceMouseover(d) {
6285 d.fixed |= 4;
6286 d.px = d.x, d.py = d.y;
6287 }
6288 function d3_layout_forceMouseout(d) {
6289 d.fixed &= ~4;
6290 }
6291 function d3_layout_forceAccumulate(quad, alpha, charges) {
6292 var cx = 0, cy = 0;
6293 quad.charge = 0;
6294 if (!quad.leaf) {
6295 var nodes = quad.nodes, n = nodes.length, i = -1, c;
6296 while (++i < n) {
6297 c = nodes[i];
6298 if (c == null) continue;
6299 d3_layout_forceAccumulate(c, alpha, charges);
6300 quad.charge += c.charge;
6301 cx += c.charge * c.cx;
6302 cy += c.charge * c.cy;
6303 }
6304 }
6305 if (quad.point) {
6306 if (!quad.leaf) {
6307 quad.point.x += Math.random() - .5;
6308 quad.point.y += Math.random() - .5;
6309 }
6310 var k = alpha * charges[quad.point.index];
6311 quad.charge += quad.pointCharge = k;
6312 cx += k * quad.point.x;
6313 cy += k * quad.point.y;
6314 }
6315 quad.cx = cx / quad.charge;
6316 quad.cy = cy / quad.charge;
6317 }
6318 var d3_layout_forceLinkDistance = 20, d3_layout_forceLinkStrength = 1, d3_layout_forceChargeDistance2 = Infinity;
6319 d3.layout.hierarchy = function() {
6320 var sort = d3_layout_hierarchySort, children = d3_layout_hierarchyChildren, value = d3_layout_hierarchyValue;
6321 function hierarchy(root) {
6322 var stack = [ root ], nodes = [], node;
6323 root.depth = 0;
6324 while ((node = stack.pop()) != null) {
6325 nodes.push(node);
6326 if ((childs = children.call(hierarchy, node, node.depth)) && (n = childs.length)) {
6327 var n, childs, child;
6328 while (--n >= 0) {
6329 stack.push(child = childs[n]);
6330 child.parent = node;
6331 child.depth = node.depth + 1;
6332 }
6333 if (value) node.value = 0;
6334 node.children = childs;
6335 } else {
6336 if (value) node.value = +value.call(hierarchy, node, node.depth) || 0;
6337 delete node.children;
6338 }
6339 }
6340 d3_layout_hierarchyVisitAfter(root, function(node) {
6341 var childs, parent;
6342 if (sort && (childs = node.children)) childs.sort(sort);
6343 if (value && (parent = node.parent)) parent.value += node.value;
6344 });
6345 return nodes;
6346 }
6347 hierarchy.sort = function(x) {
6348 if (!arguments.length) return sort;
6349 sort = x;
6350 return hierarchy;
6351 };
6352 hierarchy.children = function(x) {
6353 if (!arguments.length) return children;
6354 children = x;
6355 return hierarchy;
6356 };
6357 hierarchy.value = function(x) {
6358 if (!arguments.length) return value;
6359 value = x;
6360 return hierarchy;
6361 };
6362 hierarchy.revalue = function(root) {
6363 if (value) {
6364 d3_layout_hierarchyVisitBefore(root, function(node) {
6365 if (node.children) node.value = 0;
6366 });
6367 d3_layout_hierarchyVisitAfter(root, function(node) {
6368 var parent;
6369 if (!node.children) node.value = +value.call(hierarchy, node, node.depth) || 0;
6370 if (parent = node.parent) parent.value += node.value;
6371 });
6372 }
6373 return root;
6374 };
6375 return hierarchy;
6376 };
6377 function d3_layout_hierarchyRebind(object, hierarchy) {
6378 d3.rebind(object, hierarchy, "sort", "children", "value");
6379 object.nodes = object;
6380 object.links = d3_layout_hierarchyLinks;
6381 return object;
6382 }
6383 function d3_layout_hierarchyVisitBefore(node, callback) {
6384 var nodes = [ node ];
6385 while ((node = nodes.pop()) != null) {
6386 callback(node);
6387 if ((children = node.children) && (n = children.length)) {
6388 var n, children;
6389 while (--n >= 0) nodes.push(children[n]);
6390 }
6391 }
6392 }
6393 function d3_layout_hierarchyVisitAfter(node, callback) {
6394 var nodes = [ node ], nodes2 = [];
6395 while ((node = nodes.pop()) != null) {
6396 nodes2.push(node);
6397 if ((children = node.children) && (n = children.length)) {
6398 var i = -1, n, children;
6399 while (++i < n) nodes.push(children[i]);
6400 }
6401 }
6402 while ((node = nodes2.pop()) != null) {
6403 callback(node);
6404 }
6405 }
6406 function d3_layout_hierarchyChildren(d) {
6407 return d.children;
6408 }
6409 function d3_layout_hierarchyValue(d) {
6410 return d.value;
6411 }
6412 function d3_layout_hierarchySort(a, b) {
6413 return b.value - a.value;
6414 }
6415 function d3_layout_hierarchyLinks(nodes) {
6416 return d3.merge(nodes.map(function(parent) {
6417 return (parent.children || []).map(function(child) {
6418 return {
6419 source: parent,
6420 target: child
6421 };
6422 });
6423 }));
6424 }
6425 d3.layout.partition = function() {
6426 var hierarchy = d3.layout.hierarchy(), size = [ 1, 1 ];
6427 function position(node, x, dx, dy) {
6428 var children = node.children;
6429 node.x = x;
6430 node.y = node.depth * dy;
6431 node.dx = dx;
6432 node.dy = dy;
6433 if (children && (n = children.length)) {
6434 var i = -1, n, c, d;
6435 dx = node.value ? dx / node.value : 0;
6436 while (++i < n) {
6437 position(c = children[i], x, d = c.value * dx, dy);
6438 x += d;
6439 }
6440 }
6441 }
6442 function depth(node) {
6443 var children = node.children, d = 0;
6444 if (children && (n = children.length)) {
6445 var i = -1, n;
6446 while (++i < n) d = Math.max(d, depth(children[i]));
6447 }
6448 return 1 + d;
6449 }
6450 function partition(d, i) {
6451 var nodes = hierarchy.call(this, d, i);
6452 position(nodes[0], 0, size[0], size[1] / depth(nodes[0]));
6453 return nodes;
6454 }
6455 partition.size = function(x) {
6456 if (!arguments.length) return size;
6457 size = x;
6458 return partition;
6459 };
6460 return d3_layout_hierarchyRebind(partition, hierarchy);
6461 };
6462 d3.layout.pie = function() {
6463 var value = Number, sort = d3_layout_pieSortByValue, startAngle = 0, endAngle = τ;
6464 function pie(data) {
6465 var values = data.map(function(d, i) {
6466 return +value.call(pie, d, i);
6467 });
6468 var a = +(typeof startAngle === "function" ? startAngle.apply(this, arguments) : startAngle);
6469 var k = ((typeof endAngle === "function" ? endAngle.apply(this, arguments) : endAngle) - a) / d3.sum(values);
6470 var index = d3.range(data.length);
6471 if (sort != null) index.sort(sort === d3_layout_pieSortByValue ? function(i, j) {
6472 return values[j] - values[i];
6473 } : function(i, j) {
6474 return sort(data[i], data[j]);
6475 });
6476 var arcs = [];
6477 index.forEach(function(i) {
6478 var d;
6479 arcs[i] = {
6480 data: data[i],
6481 value: d = values[i],
6482 startAngle: a,
6483 endAngle: a += d * k
6484 };
6485 });
6486 return arcs;
6487 }
6488 pie.value = function(x) {
6489 if (!arguments.length) return value;
6490 value = x;
6491 return pie;
6492 };
6493 pie.sort = function(x) {
6494 if (!arguments.length) return sort;
6495 sort = x;
6496 return pie;
6497 };
6498 pie.startAngle = function(x) {
6499 if (!arguments.length) return startAngle;
6500 startAngle = x;
6501 return pie;
6502 };
6503 pie.endAngle = function(x) {
6504 if (!arguments.length) return endAngle;
6505 endAngle = x;
6506 return pie;
6507 };
6508 return pie;
6509 };
6510 var d3_layout_pieSortByValue = {};
6511 d3.layout.stack = function() {
6512 var values = d3_identity, order = d3_layout_stackOrderDefault, offset = d3_layout_stackOffsetZero, out = d3_layout_stackOut, x = d3_layout_stackX, y = d3_layout_stackY;
6513 function stack(data, index) {
6514 var series = data.map(function(d, i) {
6515 return values.call(stack, d, i);
6516 });
6517 var points = series.map(function(d) {
6518 return d.map(function(v, i) {
6519 return [ x.call(stack, v, i), y.call(stack, v, i) ];
6520 });
6521 });
6522 var orders = order.call(stack, points, index);
6523 series = d3.permute(series, orders);
6524 points = d3.permute(points, orders);
6525 var offsets = offset.call(stack, points, index);
6526 var n = series.length, m = series[0].length, i, j, o;
6527 for (j = 0; j < m; ++j) {
6528 out.call(stack, series[0][j], o = offsets[j], points[0][j][1]);
6529 for (i = 1; i < n; ++i) {
6530 out.call(stack, series[i][j], o += points[i - 1][j][1], points[i][j][1]);
6531 }
6532 }
6533 return data;
6534 }
6535 stack.values = function(x) {
6536 if (!arguments.length) return values;
6537 values = x;
6538 return stack;
6539 };
6540 stack.order = function(x) {
6541 if (!arguments.length) return order;
6542 order = typeof x === "function" ? x : d3_layout_stackOrders.get(x) || d3_layout_stackOrderDefault;
6543 return stack;
6544 };
6545 stack.offset = function(x) {
6546 if (!arguments.length) return offset;
6547 offset = typeof x === "function" ? x : d3_layout_stackOffsets.get(x) || d3_layout_stackOffsetZero;
6548 return stack;
6549 };
6550 stack.x = function(z) {
6551 if (!arguments.length) return x;
6552 x = z;
6553 return stack;
6554 };
6555 stack.y = function(z) {
6556 if (!arguments.length) return y;
6557 y = z;
6558 return stack;
6559 };
6560 stack.out = function(z) {
6561 if (!arguments.length) return out;
6562 out = z;
6563 return stack;
6564 };
6565 return stack;
6566 };
6567 function d3_layout_stackX(d) {
6568 return d.x;
6569 }
6570 function d3_layout_stackY(d) {
6571 return d.y;
6572 }
6573 function d3_layout_stackOut(d, y0, y) {
6574 d.y0 = y0;
6575 d.y = y;
6576 }
6577 var d3_layout_stackOrders = d3.map({
6578 "inside-out": function(data) {
6579 var n = data.length, i, j, max = data.map(d3_layout_stackMaxIndex), sums = data.map(d3_layout_stackReduceSum), index = d3.range(n).sort(function(a, b) {
6580 return max[a] - max[b];
6581 }), top = 0, bottom = 0, tops = [], bottoms = [];
6582 for (i = 0; i < n; ++i) {
6583 j = index[i];
6584 if (top < bottom) {
6585 top += sums[j];
6586 tops.push(j);
6587 } else {
6588 bottom += sums[j];
6589 bottoms.push(j);
6590 }
6591 }
6592 return bottoms.reverse().concat(tops);
6593 },
6594 reverse: function(data) {
6595 return d3.range(data.length).reverse();
6596 },
6597 "default": d3_layout_stackOrderDefault
6598 });
6599 var d3_layout_stackOffsets = d3.map({
6600 silhouette: function(data) {
6601 var n = data.length, m = data[0].length, sums = [], max = 0, i, j, o, y0 = [];
6602 for (j = 0; j < m; ++j) {
6603 for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
6604 if (o > max) max = o;
6605 sums.push(o);
6606 }
6607 for (j = 0; j < m; ++j) {
6608 y0[j] = (max - sums[j]) / 2;
6609 }
6610 return y0;
6611 },
6612 wiggle: function(data) {
6613 var n = data.length, x = data[0], m = x.length, i, j, k, s1, s2, s3, dx, o, o0, y0 = [];
6614 y0[0] = o = o0 = 0;
6615 for (j = 1; j < m; ++j) {
6616 for (i = 0, s1 = 0; i < n; ++i) s1 += data[i][j][1];
6617 for (i = 0, s2 = 0, dx = x[j][0] - x[j - 1][0]; i < n; ++i) {
6618 for (k = 0, s3 = (data[i][j][1] - data[i][j - 1][1]) / (2 * dx); k < i; ++k) {
6619 s3 += (data[k][j][1] - data[k][j - 1][1]) / dx;
6620 }
6621 s2 += s3 * data[i][j][1];
6622 }
6623 y0[j] = o -= s1 ? s2 / s1 * dx : 0;
6624 if (o < o0) o0 = o;
6625 }
6626 for (j = 0; j < m; ++j) y0[j] -= o0;
6627 return y0;
6628 },
6629 expand: function(data) {
6630 var n = data.length, m = data[0].length, k = 1 / n, i, j, o, y0 = [];
6631 for (j = 0; j < m; ++j) {
6632 for (i = 0, o = 0; i < n; i++) o += data[i][j][1];
6633 if (o) for (i = 0; i < n; i++) data[i][j][1] /= o; else for (i = 0; i < n; i++) data[i][j][1] = k;
6634 }
6635 for (j = 0; j < m; ++j) y0[j] = 0;
6636 return y0;
6637 },
6638 zero: d3_layout_stackOffsetZero
6639 });
6640 function d3_layout_stackOrderDefault(data) {
6641 return d3.range(data.length);
6642 }
6643 function d3_layout_stackOffsetZero(data) {
6644 var j = -1, m = data[0].length, y0 = [];
6645 while (++j < m) y0[j] = 0;
6646 return y0;
6647 }
6648 function d3_layout_stackMaxIndex(array) {
6649 var i = 1, j = 0, v = array[0][1], k, n = array.length;
6650 for (;i < n; ++i) {
6651 if ((k = array[i][1]) > v) {
6652 j = i;
6653 v = k;
6654 }
6655 }
6656 return j;
6657 }
6658 function d3_layout_stackReduceSum(d) {
6659 return d.reduce(d3_layout_stackSum, 0);
6660 }
6661 function d3_layout_stackSum(p, d) {
6662 return p + d[1];
6663 }
6664 d3.layout.histogram = function() {
6665 var frequency = true, valuer = Number, ranger = d3_layout_histogramRange, binner = d3_layout_histogramBinSturges;
6666 function histogram(data, i) {
6667 var bins = [], values = data.map(valuer, this), range = ranger.call(this, values, i), thresholds = binner.call(this, range, values, i), bin, i = -1, n = values.length, m = thresholds.length - 1, k = frequency ? 1 : 1 / n, x;
6668 while (++i < m) {
6669 bin = bins[i] = [];
6670 bin.dx = thresholds[i + 1] - (bin.x = thresholds[i]);
6671 bin.y = 0;
6672 }
6673 if (m > 0) {
6674 i = -1;
6675 while (++i < n) {
6676 x = values[i];
6677 if (x >= range[0] && x <= range[1]) {
6678 bin = bins[d3.bisect(thresholds, x, 1, m) - 1];
6679 bin.y += k;
6680 bin.push(data[i]);
6681 }
6682 }
6683 }
6684 return bins;
6685 }
6686 histogram.value = function(x) {
6687 if (!arguments.length) return valuer;
6688 valuer = x;
6689 return histogram;
6690 };
6691 histogram.range = function(x) {
6692 if (!arguments.length) return ranger;
6693 ranger = d3_functor(x);
6694 return histogram;
6695 };
6696 histogram.bins = function(x) {
6697 if (!arguments.length) return binner;
6698 binner = typeof x === "number" ? function(range) {
6699 return d3_layout_histogramBinFixed(range, x);
6700 } : d3_functor(x);
6701 return histogram;
6702 };
6703 histogram.frequency = function(x) {
6704 if (!arguments.length) return frequency;
6705 frequency = !!x;
6706 return histogram;
6707 };
6708 return histogram;
6709 };
6710 function d3_layout_histogramBinSturges(range, values) {
6711 return d3_layout_histogramBinFixed(range, Math.ceil(Math.log(values.length) / Math.LN2 + 1));
6712 }
6713 function d3_layout_histogramBinFixed(range, n) {
6714 var x = -1, b = +range[0], m = (range[1] - b) / n, f = [];
6715 while (++x <= n) f[x] = m * x + b;
6716 return f;
6717 }
6718 function d3_layout_histogramRange(values) {
6719 return [ d3.min(values), d3.max(values) ];
6720 }
6721 d3.layout.pack = function() {
6722 var hierarchy = d3.layout.hierarchy().sort(d3_layout_packSort), padding = 0, size = [ 1, 1 ], radius;
6723 function pack(d, i) {
6724 var nodes = hierarchy.call(this, d, i), root = nodes[0], w = size[0], h = size[1], r = radius == null ? Math.sqrt : typeof radius === "function" ? radius : function() {
6725 return radius;
6726 };
6727 root.x = root.y = 0;
6728 d3_layout_hierarchyVisitAfter(root, function(d) {
6729 d.r = +r(d.value);
6730 });
6731 d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
6732 if (padding) {
6733 var dr = padding * (radius ? 1 : Math.max(2 * root.r / w, 2 * root.r / h)) / 2;
6734 d3_layout_hierarchyVisitAfter(root, function(d) {
6735 d.r += dr;
6736 });
6737 d3_layout_hierarchyVisitAfter(root, d3_layout_packSiblings);
6738 d3_layout_hierarchyVisitAfter(root, function(d) {
6739 d.r -= dr;
6740 });
6741 }
6742 d3_layout_packTransform(root, w / 2, h / 2, radius ? 1 : 1 / Math.max(2 * root.r / w, 2 * root.r / h));
6743 return nodes;
6744 }
6745 pack.size = function(_) {
6746 if (!arguments.length) return size;
6747 size = _;
6748 return pack;
6749 };
6750 pack.radius = function(_) {
6751 if (!arguments.length) return radius;
6752 radius = _ == null || typeof _ === "function" ? _ : +_;
6753 return pack;
6754 };
6755 pack.padding = function(_) {
6756 if (!arguments.length) return padding;
6757 padding = +_;
6758 return pack;
6759 };
6760 return d3_layout_hierarchyRebind(pack, hierarchy);
6761 };
6762 function d3_layout_packSort(a, b) {
6763 return a.value - b.value;
6764 }
6765 function d3_layout_packInsert(a, b) {
6766 var c = a._pack_next;
6767 a._pack_next = b;
6768 b._pack_prev = a;
6769 b._pack_next = c;
6770 c._pack_prev = b;
6771 }
6772 function d3_layout_packSplice(a, b) {
6773 a._pack_next = b;
6774 b._pack_prev = a;
6775 }
6776 function d3_layout_packIntersects(a, b) {
6777 var dx = b.x - a.x, dy = b.y - a.y, dr = a.r + b.r;
6778 return .999 * dr * dr > dx * dx + dy * dy;
6779 }
6780 function d3_layout_packSiblings(node) {
6781 if (!(nodes = node.children) || !(n = nodes.length)) return;
6782 var nodes, xMin = Infinity, xMax = -Infinity, yMin = Infinity, yMax = -Infinity, a, b, c, i, j, k, n;
6783 function bound(node) {
6784 xMin = Math.min(node.x - node.r, xMin);
6785 xMax = Math.max(node.x + node.r, xMax);
6786 yMin = Math.min(node.y - node.r, yMin);
6787 yMax = Math.max(node.y + node.r, yMax);
6788 }
6789 nodes.forEach(d3_layout_packLink);
6790 a = nodes[0];
6791 a.x = -a.r;
6792 a.y = 0;
6793 bound(a);
6794 if (n > 1) {
6795 b = nodes[1];
6796 b.x = b.r;
6797 b.y = 0;
6798 bound(b);
6799 if (n > 2) {
6800 c = nodes[2];
6801 d3_layout_packPlace(a, b, c);
6802 bound(c);
6803 d3_layout_packInsert(a, c);
6804 a._pack_prev = c;
6805 d3_layout_packInsert(c, b);
6806 b = a._pack_next;
6807 for (i = 3; i < n; i++) {
6808 d3_layout_packPlace(a, b, c = nodes[i]);
6809 var isect = 0, s1 = 1, s2 = 1;
6810 for (j = b._pack_next; j !== b; j = j._pack_next, s1++) {
6811 if (d3_layout_packIntersects(j, c)) {
6812 isect = 1;
6813 break;
6814 }
6815 }
6816 if (isect == 1) {
6817 for (k = a._pack_prev; k !== j._pack_prev; k = k._pack_prev, s2++) {
6818 if (d3_layout_packIntersects(k, c)) {
6819 break;
6820 }
6821 }
6822 }
6823 if (isect) {
6824 if (s1 < s2 || s1 == s2 && b.r < a.r) d3_layout_packSplice(a, b = j); else d3_layout_packSplice(a = k, b);
6825 i--;
6826 } else {
6827 d3_layout_packInsert(a, c);
6828 b = c;
6829 bound(c);
6830 }
6831 }
6832 }
6833 }
6834 var cx = (xMin + xMax) / 2, cy = (yMin + yMax) / 2, cr = 0;
6835 for (i = 0; i < n; i++) {
6836 c = nodes[i];
6837 c.x -= cx;
6838 c.y -= cy;
6839 cr = Math.max(cr, c.r + Math.sqrt(c.x * c.x + c.y * c.y));
6840 }
6841 node.r = cr;
6842 nodes.forEach(d3_layout_packUnlink);
6843 }
6844 function d3_layout_packLink(node) {
6845 node._pack_next = node._pack_prev = node;
6846 }
6847 function d3_layout_packUnlink(node) {
6848 delete node._pack_next;
6849 delete node._pack_prev;
6850 }
6851 function d3_layout_packTransform(node, x, y, k) {
6852 var children = node.children;
6853 node.x = x += k * node.x;
6854 node.y = y += k * node.y;
6855 node.r *= k;
6856 if (children) {
6857 var i = -1, n = children.length;
6858 while (++i < n) d3_layout_packTransform(children[i], x, y, k);
6859 }
6860 }
6861 function d3_layout_packPlace(a, b, c) {
6862 var db = a.r + c.r, dx = b.x - a.x, dy = b.y - a.y;
6863 if (db && (dx || dy)) {
6864 var da = b.r + c.r, dc = dx * dx + dy * dy;
6865 da *= da;
6866 db *= db;
6867 var x = .5 + (db - da) / (2 * dc), y = Math.sqrt(Math.max(0, 2 * da * (db + dc) - (db -= dc) * db - da * da)) / (2 * dc);
6868 c.x = a.x + x * dx + y * dy;
6869 c.y = a.y + x * dy - y * dx;
6870 } else {
6871 c.x = a.x + db;
6872 c.y = a.y;
6873 }
6874 }
6875 d3.layout.tree = function() {
6876 var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = null;
6877 function tree(d, i) {
6878 var nodes = hierarchy.call(this, d, i), root0 = nodes[0], root1 = wrapTree(root0);
6879 d3_layout_hierarchyVisitAfter(root1, firstWalk), root1.parent.m = -root1.z;
6880 d3_layout_hierarchyVisitBefore(root1, secondWalk);
6881 if (nodeSize) d3_layout_hierarchyVisitBefore(root0, sizeNode); else {
6882 var left = root0, right = root0, bottom = root0;
6883 d3_layout_hierarchyVisitBefore(root0, function(node) {
6884 if (node.x < left.x) left = node;
6885 if (node.x > right.x) right = node;
6886 if (node.depth > bottom.depth) bottom = node;
6887 });
6888 var tx = separation(left, right) / 2 - left.x, kx = size[0] / (right.x + separation(right, left) / 2 + tx), ky = size[1] / (bottom.depth || 1);
6889 d3_layout_hierarchyVisitBefore(root0, function(node) {
6890 node.x = (node.x + tx) * kx;
6891 node.y = node.depth * ky;
6892 });
6893 }
6894 return nodes;
6895 }
6896 function wrapTree(root0) {
6897 var root1 = {
6898 A: null,
6899 children: [ root0 ]
6900 }, queue = [ root1 ], node1;
6901 while ((node1 = queue.pop()) != null) {
6902 for (var children = node1.children, child, i = 0, n = children.length; i < n; ++i) {
6903 queue.push((children[i] = child = {
6904 _: children[i],
6905 parent: node1,
6906 children: (child = children[i].children) && child.slice() || [],
6907 A: null,
6908 a: null,
6909 z: 0,
6910 m: 0,
6911 c: 0,
6912 s: 0,
6913 t: null,
6914 i: i
6915 }).a = child);
6916 }
6917 }
6918 return root1.children[0];
6919 }
6920 function firstWalk(v) {
6921 var children = v.children, siblings = v.parent.children, w = v.i ? siblings[v.i - 1] : null;
6922 if (children.length) {
6923 d3_layout_treeShift(v);
6924 var midpoint = (children[0].z + children[children.length - 1].z) / 2;
6925 if (w) {
6926 v.z = w.z + separation(v._, w._);
6927 v.m = v.z - midpoint;
6928 } else {
6929 v.z = midpoint;
6930 }
6931 } else if (w) {
6932 v.z = w.z + separation(v._, w._);
6933 }
6934 v.parent.A = apportion(v, w, v.parent.A || siblings[0]);
6935 }
6936 function secondWalk(v) {
6937 v._.x = v.z + v.parent.m;
6938 v.m += v.parent.m;
6939 }
6940 function apportion(v, w, ancestor) {
6941 if (w) {
6942 var vip = v, vop = v, vim = w, vom = vip.parent.children[0], sip = vip.m, sop = vop.m, sim = vim.m, som = vom.m, shift;
6943 while (vim = d3_layout_treeRight(vim), vip = d3_layout_treeLeft(vip), vim && vip) {
6944 vom = d3_layout_treeLeft(vom);
6945 vop = d3_layout_treeRight(vop);
6946 vop.a = v;
6947 shift = vim.z + sim - vip.z - sip + separation(vim._, vip._);
6948 if (shift > 0) {
6949 d3_layout_treeMove(d3_layout_treeAncestor(vim, v, ancestor), v, shift);
6950 sip += shift;
6951 sop += shift;
6952 }
6953 sim += vim.m;
6954 sip += vip.m;
6955 som += vom.m;
6956 sop += vop.m;
6957 }
6958 if (vim && !d3_layout_treeRight(vop)) {
6959 vop.t = vim;
6960 vop.m += sim - sop;
6961 }
6962 if (vip && !d3_layout_treeLeft(vom)) {
6963 vom.t = vip;
6964 vom.m += sip - som;
6965 ancestor = v;
6966 }
6967 }
6968 return ancestor;
6969 }
6970 function sizeNode(node) {
6971 node.x *= size[0];
6972 node.y = node.depth * size[1];
6973 }
6974 tree.separation = function(x) {
6975 if (!arguments.length) return separation;
6976 separation = x;
6977 return tree;
6978 };
6979 tree.size = function(x) {
6980 if (!arguments.length) return nodeSize ? null : size;
6981 nodeSize = (size = x) == null ? sizeNode : null;
6982 return tree;
6983 };
6984 tree.nodeSize = function(x) {
6985 if (!arguments.length) return nodeSize ? size : null;
6986 nodeSize = (size = x) == null ? null : sizeNode;
6987 return tree;
6988 };
6989 return d3_layout_hierarchyRebind(tree, hierarchy);
6990 };
6991 function d3_layout_treeSeparation(a, b) {
6992 return a.parent == b.parent ? 1 : 2;
6993 }
6994 function d3_layout_treeLeft(v) {
6995 var children = v.children;
6996 return children.length ? children[0] : v.t;
6997 }
6998 function d3_layout_treeRight(v) {
6999 var children = v.children, n;
7000 return (n = children.length) ? children[n - 1] : v.t;
7001 }
7002 function d3_layout_treeMove(wm, wp, shift) {
7003 var change = shift / (wp.i - wm.i);
7004 wp.c -= change;
7005 wp.s += shift;
7006 wm.c += change;
7007 wp.z += shift;
7008 wp.m += shift;
7009 }
7010 function d3_layout_treeShift(v) {
7011 var shift = 0, change = 0, children = v.children, i = children.length, w;
7012 while (--i >= 0) {
7013 w = children[i];
7014 w.z += shift;
7015 w.m += shift;
7016 shift += w.s + (change += w.c);
7017 }
7018 }
7019 function d3_layout_treeAncestor(vim, v, ancestor) {
7020 return vim.a.parent === v.parent ? vim.a : ancestor;
7021 }
7022 d3.layout.cluster = function() {
7023 var hierarchy = d3.layout.hierarchy().sort(null).value(null), separation = d3_layout_treeSeparation, size = [ 1, 1 ], nodeSize = false;
7024 function cluster(d, i) {
7025 var nodes = hierarchy.call(this, d, i), root = nodes[0], previousNode, x = 0;
7026 d3_layout_hierarchyVisitAfter(root, function(node) {
7027 var children = node.children;
7028 if (children && children.length) {
7029 node.x = d3_layout_clusterX(children);
7030 node.y = d3_layout_clusterY(children);
7031 } else {
7032 node.x = previousNode ? x += separation(node, previousNode) : 0;
7033 node.y = 0;
7034 previousNode = node;
7035 }
7036 });
7037 var left = d3_layout_clusterLeft(root), right = d3_layout_clusterRight(root), x0 = left.x - separation(left, right) / 2, x1 = right.x + separation(right, left) / 2;
7038 d3_layout_hierarchyVisitAfter(root, nodeSize ? function(node) {
7039 node.x = (node.x - root.x) * size[0];
7040 node.y = (root.y - node.y) * size[1];
7041 } : function(node) {
7042 node.x = (node.x - x0) / (x1 - x0) * size[0];
7043 node.y = (1 - (root.y ? node.y / root.y : 1)) * size[1];
7044 });
7045 return nodes;
7046 }
7047 cluster.separation = function(x) {
7048 if (!arguments.length) return separation;
7049 separation = x;
7050 return cluster;
7051 };
7052 cluster.size = function(x) {
7053 if (!arguments.length) return nodeSize ? null : size;
7054 nodeSize = (size = x) == null;
7055 return cluster;
7056 };
7057 cluster.nodeSize = function(x) {
7058 if (!arguments.length) return nodeSize ? size : null;
7059 nodeSize = (size = x) != null;
7060 return cluster;
7061 };
7062 return d3_layout_hierarchyRebind(cluster, hierarchy);
7063 };
7064 function d3_layout_clusterY(children) {
7065 return 1 + d3.max(children, function(child) {
7066 return child.y;
7067 });
7068 }
7069 function d3_layout_clusterX(children) {
7070 return children.reduce(function(x, child) {
7071 return x + child.x;
7072 }, 0) / children.length;
7073 }
7074 function d3_layout_clusterLeft(node) {
7075 var children = node.children;
7076 return children && children.length ? d3_layout_clusterLeft(children[0]) : node;
7077 }
7078 function d3_layout_clusterRight(node) {
7079 var children = node.children, n;
7080 return children && (n = children.length) ? d3_layout_clusterRight(children[n - 1]) : node;
7081 }
7082 d3.layout.treemap = function() {
7083 var hierarchy = d3.layout.hierarchy(), round = Math.round, size = [ 1, 1 ], padding = null, pad = d3_layout_treemapPadNull, sticky = false, stickies, mode = "squarify", ratio = .5 * (1 + Math.sqrt(5));
7084 function scale(children, k) {
7085 var i = -1, n = children.length, child, area;
7086 while (++i < n) {
7087 area = (child = children[i]).value * (k < 0 ? 0 : k);
7088 child.area = isNaN(area) || area <= 0 ? 0 : area;
7089 }
7090 }
7091 function squarify(node) {
7092 var children = node.children;
7093 if (children && children.length) {
7094 var rect = pad(node), row = [], remaining = children.slice(), child, best = Infinity, score, u = mode === "slice" ? rect.dx : mode === "dice" ? rect.dy : mode === "slice-dice" ? node.depth & 1 ? rect.dy : rect.dx : Math.min(rect.dx, rect.dy), n;
7095 scale(remaining, rect.dx * rect.dy / node.value);
7096 row.area = 0;
7097 while ((n = remaining.length) > 0) {
7098 row.push(child = remaining[n - 1]);
7099 row.area += child.area;
7100 if (mode !== "squarify" || (score = worst(row, u)) <= best) {
7101 remaining.pop();
7102 best = score;
7103 } else {
7104 row.area -= row.pop().area;
7105 position(row, u, rect, false);
7106 u = Math.min(rect.dx, rect.dy);
7107 row.length = row.area = 0;
7108 best = Infinity;
7109 }
7110 }
7111 if (row.length) {
7112 position(row, u, rect, true);
7113 row.length = row.area = 0;
7114 }
7115 children.forEach(squarify);
7116 }
7117 }
7118 function stickify(node) {
7119 var children = node.children;
7120 if (children && children.length) {
7121 var rect = pad(node), remaining = children.slice(), child, row = [];
7122 scale(remaining, rect.dx * rect.dy / node.value);
7123 row.area = 0;
7124 while (child = remaining.pop()) {
7125 row.push(child);
7126 row.area += child.area;
7127 if (child.z != null) {
7128 position(row, child.z ? rect.dx : rect.dy, rect, !remaining.length);
7129 row.length = row.area = 0;
7130 }
7131 }
7132 children.forEach(stickify);
7133 }
7134 }
7135 function worst(row, u) {
7136 var s = row.area, r, rmax = 0, rmin = Infinity, i = -1, n = row.length;
7137 while (++i < n) {
7138 if (!(r = row[i].area)) continue;
7139 if (r < rmin) rmin = r;
7140 if (r > rmax) rmax = r;
7141 }
7142 s *= s;
7143 u *= u;
7144 return s ? Math.max(u * rmax * ratio / s, s / (u * rmin * ratio)) : Infinity;
7145 }
7146 function position(row, u, rect, flush) {
7147 var i = -1, n = row.length, x = rect.x, y = rect.y, v = u ? round(row.area / u) : 0, o;
7148 if (u == rect.dx) {
7149 if (flush || v > rect.dy) v = rect.dy;
7150 while (++i < n) {
7151 o = row[i];
7152 o.x = x;
7153 o.y = y;
7154 o.dy = v;
7155 x += o.dx = Math.min(rect.x + rect.dx - x, v ? round(o.area / v) : 0);
7156 }
7157 o.z = true;
7158 o.dx += rect.x + rect.dx - x;
7159 rect.y += v;
7160 rect.dy -= v;
7161 } else {
7162 if (flush || v > rect.dx) v = rect.dx;
7163 while (++i < n) {
7164 o = row[i];
7165 o.x = x;
7166 o.y = y;
7167 o.dx = v;
7168 y += o.dy = Math.min(rect.y + rect.dy - y, v ? round(o.area / v) : 0);
7169 }
7170 o.z = false;
7171 o.dy += rect.y + rect.dy - y;
7172 rect.x += v;
7173 rect.dx -= v;
7174 }
7175 }
7176 function treemap(d) {
7177 var nodes = stickies || hierarchy(d), root = nodes[0];
7178 root.x = 0;
7179 root.y = 0;
7180 root.dx = size[0];
7181 root.dy = size[1];
7182 if (stickies) hierarchy.revalue(root);
7183 scale([ root ], root.dx * root.dy / root.value);
7184 (stickies ? stickify : squarify)(root);
7185 if (sticky) stickies = nodes;
7186 return nodes;
7187 }
7188 treemap.size = function(x) {
7189 if (!arguments.length) return size;
7190 size = x;
7191 return treemap;
7192 };
7193 treemap.padding = function(x) {
7194 if (!arguments.length) return padding;
7195 function padFunction(node) {
7196 var p = x.call(treemap, node, node.depth);
7197 return p == null ? d3_layout_treemapPadNull(node) : d3_layout_treemapPad(node, typeof p === "number" ? [ p, p, p, p ] : p);
7198 }
7199 function padConstant(node) {
7200 return d3_layout_treemapPad(node, x);
7201 }
7202 var type;
7203 pad = (padding = x) == null ? d3_layout_treemapPadNull : (type = typeof x) === "function" ? padFunction : type === "number" ? (x = [ x, x, x, x ],
7204 padConstant) : padConstant;
7205 return treemap;
7206 };
7207 treemap.round = function(x) {
7208 if (!arguments.length) return round != Number;
7209 round = x ? Math.round : Number;
7210 return treemap;
7211 };
7212 treemap.sticky = function(x) {
7213 if (!arguments.length) return sticky;
7214 sticky = x;
7215 stickies = null;
7216 return treemap;
7217 };
7218 treemap.ratio = function(x) {
7219 if (!arguments.length) return ratio;
7220 ratio = x;
7221 return treemap;
7222 };
7223 treemap.mode = function(x) {
7224 if (!arguments.length) return mode;
7225 mode = x + "";
7226 return treemap;
7227 };
7228 return d3_layout_hierarchyRebind(treemap, hierarchy);
7229 };
7230 function d3_layout_treemapPadNull(node) {
7231 return {
7232 x: node.x,
7233 y: node.y,
7234 dx: node.dx,
7235 dy: node.dy
7236 };
7237 }
7238 function d3_layout_treemapPad(node, padding) {
7239 var x = node.x + padding[3], y = node.y + padding[0], dx = node.dx - padding[1] - padding[3], dy = node.dy - padding[0] - padding[2];
7240 if (dx < 0) {
7241 x += dx / 2;
7242 dx = 0;
7243 }
7244 if (dy < 0) {
7245 y += dy / 2;
7246 dy = 0;
7247 }
7248 return {
7249 x: x,
7250 y: y,
7251 dx: dx,
7252 dy: dy
7253 };
7254 }
7255 d3.random = {
7256 normal: function(µ, σ) {
7257 var n = arguments.length;
7258 if (n < 2) σ = 1;
7259 if (n < 1) µ = 0;
7260 return function() {
7261 var x, y, r;
7262 do {
7263 x = Math.random() * 2 - 1;
7264 y = Math.random() * 2 - 1;
7265 r = x * x + y * y;
7266 } while (!r || r > 1);
7267 return µ + σ * x * Math.sqrt(-2 * Math.log(r) / r);
7268 };
7269 },
7270 logNormal: function() {
7271 var random = d3.random.normal.apply(d3, arguments);
7272 return function() {
7273 return Math.exp(random());
7274 };
7275 },
7276 bates: function(m) {
7277 var random = d3.random.irwinHall(m);
7278 return function() {
7279 return random() / m;
7280 };
7281 },
7282 irwinHall: function(m) {
7283 return function() {
7284 for (var s = 0, j = 0; j < m; j++) s += Math.random();
7285 return s;
7286 };
7287 }
7288 };
7289 d3.scale = {};
7290 function d3_scaleExtent(domain) {
7291 var start = domain[0], stop = domain[domain.length - 1];
7292 return start < stop ? [ start, stop ] : [ stop, start ];
7293 }
7294 function d3_scaleRange(scale) {
7295 return scale.rangeExtent ? scale.rangeExtent() : d3_scaleExtent(scale.range());
7296 }
7297 function d3_scale_bilinear(domain, range, uninterpolate, interpolate) {
7298 var u = uninterpolate(domain[0], domain[1]), i = interpolate(range[0], range[1]);
7299 return function(x) {
7300 return i(u(x));
7301 };
7302 }
7303 function d3_scale_nice(domain, nice) {
7304 var i0 = 0, i1 = domain.length - 1, x0 = domain[i0], x1 = domain[i1], dx;
7305 if (x1 < x0) {
7306 dx = i0, i0 = i1, i1 = dx;
7307 dx = x0, x0 = x1, x1 = dx;
7308 }
7309 domain[i0] = nice.floor(x0);
7310 domain[i1] = nice.ceil(x1);
7311 return domain;
7312 }
7313 function d3_scale_niceStep(step) {
7314 return step ? {
7315 floor: function(x) {
7316 return Math.floor(x / step) * step;
7317 },
7318 ceil: function(x) {
7319 return Math.ceil(x / step) * step;
7320 }
7321 } : d3_scale_niceIdentity;
7322 }
7323 var d3_scale_niceIdentity = {
7324 floor: d3_identity,
7325 ceil: d3_identity
7326 };
7327 function d3_scale_polylinear(domain, range, uninterpolate, interpolate) {
7328 var u = [], i = [], j = 0, k = Math.min(domain.length, range.length) - 1;
7329 if (domain[k] < domain[0]) {
7330 domain = domain.slice().reverse();
7331 range = range.slice().reverse();
7332 }
7333 while (++j <= k) {
7334 u.push(uninterpolate(domain[j - 1], domain[j]));
7335 i.push(interpolate(range[j - 1], range[j]));
7336 }
7337 return function(x) {
7338 var j = d3.bisect(domain, x, 1, k) - 1;
7339 return i[j](u[j](x));
7340 };
7341 }
7342 d3.scale.linear = function() {
7343 return d3_scale_linear([ 0, 1 ], [ 0, 1 ], d3_interpolate, false);
7344 };
7345 function d3_scale_linear(domain, range, interpolate, clamp) {
7346 var output, input;
7347 function rescale() {
7348 var linear = Math.min(domain.length, range.length) > 2 ? d3_scale_polylinear : d3_scale_bilinear, uninterpolate = clamp ? d3_uninterpolateClamp : d3_uninterpolateNumber;
7349 output = linear(domain, range, uninterpolate, interpolate);
7350 input = linear(range, domain, uninterpolate, d3_interpolate);
7351 return scale;
7352 }
7353 function scale(x) {
7354 return output(x);
7355 }
7356 scale.invert = function(y) {
7357 return input(y);
7358 };
7359 scale.domain = function(x) {
7360 if (!arguments.length) return domain;
7361 domain = x.map(Number);
7362 return rescale();
7363 };
7364 scale.range = function(x) {
7365 if (!arguments.length) return range;
7366 range = x;
7367 return rescale();
7368 };
7369 scale.rangeRound = function(x) {
7370 return scale.range(x).interpolate(d3_interpolateRound);
7371 };
7372 scale.clamp = function(x) {
7373 if (!arguments.length) return clamp;
7374 clamp = x;
7375 return rescale();
7376 };
7377 scale.interpolate = function(x) {
7378 if (!arguments.length) return interpolate;
7379 interpolate = x;
7380 return rescale();
7381 };
7382 scale.ticks = function(m) {
7383 return d3_scale_linearTicks(domain, m);
7384 };
7385 scale.tickFormat = function(m, format) {
7386 return d3_scale_linearTickFormat(domain, m, format);
7387 };
7388 scale.nice = function(m) {
7389 d3_scale_linearNice(domain, m);
7390 return rescale();
7391 };
7392 scale.copy = function() {
7393 return d3_scale_linear(domain, range, interpolate, clamp);
7394 };
7395 return rescale();
7396 }
7397 function d3_scale_linearRebind(scale, linear) {
7398 return d3.rebind(scale, linear, "range", "rangeRound", "interpolate", "clamp");
7399 }
7400 function d3_scale_linearNice(domain, m) {
7401 return d3_scale_nice(domain, d3_scale_niceStep(d3_scale_linearTickRange(domain, m)[2]));
7402 }
7403 function d3_scale_linearTickRange(domain, m) {
7404 if (m == null) m = 10;
7405 var extent = d3_scaleExtent(domain), span = extent[1] - extent[0], step = Math.pow(10, Math.floor(Math.log(span / m) / Math.LN10)), err = m / span * step;
7406 if (err <= .15) step *= 10; else if (err <= .35) step *= 5; else if (err <= .75) step *= 2;
7407 extent[0] = Math.ceil(extent[0] / step) * step;
7408 extent[1] = Math.floor(extent[1] / step) * step + step * .5;
7409 extent[2] = step;
7410 return extent;
7411 }
7412 function d3_scale_linearTicks(domain, m) {
7413 return d3.range.apply(d3, d3_scale_linearTickRange(domain, m));
7414 }
7415 function d3_scale_linearTickFormat(domain, m, format) {
7416 var range = d3_scale_linearTickRange(domain, m);
7417 if (format) {
7418 var match = d3_format_re.exec(format);
7419 match.shift();
7420 if (match[8] === "s") {
7421 var prefix = d3.formatPrefix(Math.max(abs(range[0]), abs(range[1])));
7422 if (!match[7]) match[7] = "." + d3_scale_linearPrecision(prefix.scale(range[2]));
7423 match[8] = "f";
7424 format = d3.format(match.join(""));
7425 return function(d) {
7426 return format(prefix.scale(d)) + prefix.symbol;
7427 };
7428 }
7429 if (!match[7]) match[7] = "." + d3_scale_linearFormatPrecision(match[8], range);
7430 format = match.join("");
7431 } else {
7432 format = ",." + d3_scale_linearPrecision(range[2]) + "f";
7433 }
7434 return d3.format(format);
7435 }
7436 var d3_scale_linearFormatSignificant = {
7437 s: 1,
7438 g: 1,
7439 p: 1,
7440 r: 1,
7441 e: 1
7442 };
7443 function d3_scale_linearPrecision(value) {
7444 return -Math.floor(Math.log(value) / Math.LN10 + .01);
7445 }
7446 function d3_scale_linearFormatPrecision(type, range) {
7447 var p = d3_scale_linearPrecision(range[2]);
7448 return type in d3_scale_linearFormatSignificant ? Math.abs(p - d3_scale_linearPrecision(Math.max(abs(range[0]), abs(range[1])))) + +(type !== "e") : p - (type === "%") * 2;
7449 }
7450 d3.scale.log = function() {
7451 return d3_scale_log(d3.scale.linear().domain([ 0, 1 ]), 10, true, [ 1, 10 ]);
7452 };
7453 function d3_scale_log(linear, base, positive, domain) {
7454 function log(x) {
7455 return (positive ? Math.log(x < 0 ? 0 : x) : -Math.log(x > 0 ? 0 : -x)) / Math.log(base);
7456 }
7457 function pow(x) {
7458 return positive ? Math.pow(base, x) : -Math.pow(base, -x);
7459 }
7460 function scale(x) {
7461 return linear(log(x));
7462 }
7463 scale.invert = function(x) {
7464 return pow(linear.invert(x));
7465 };
7466 scale.domain = function(x) {
7467 if (!arguments.length) return domain;
7468 positive = x[0] >= 0;
7469 linear.domain((domain = x.map(Number)).map(log));
7470 return scale;
7471 };
7472 scale.base = function(_) {
7473 if (!arguments.length) return base;
7474 base = +_;
7475 linear.domain(domain.map(log));
7476 return scale;
7477 };
7478 scale.nice = function() {
7479 var niced = d3_scale_nice(domain.map(log), positive ? Math : d3_scale_logNiceNegative);
7480 linear.domain(niced);
7481 domain = niced.map(pow);
7482 return scale;
7483 };
7484 scale.ticks = function() {
7485 var extent = d3_scaleExtent(domain), ticks = [], u = extent[0], v = extent[1], i = Math.floor(log(u)), j = Math.ceil(log(v)), n = base % 1 ? 2 : base;
7486 if (isFinite(j - i)) {
7487 if (positive) {
7488 for (;i < j; i++) for (var k = 1; k < n; k++) ticks.push(pow(i) * k);
7489 ticks.push(pow(i));
7490 } else {
7491 ticks.push(pow(i));
7492 for (;i++ < j; ) for (var k = n - 1; k > 0; k--) ticks.push(pow(i) * k);
7493 }
7494 for (i = 0; ticks[i] < u; i++) {}
7495 for (j = ticks.length; ticks[j - 1] > v; j--) {}
7496 ticks = ticks.slice(i, j);
7497 }
7498 return ticks;
7499 };
7500 scale.tickFormat = function(n, format) {
7501 if (!arguments.length) return d3_scale_logFormat;
7502 if (arguments.length < 2) format = d3_scale_logFormat; else if (typeof format !== "function") format = d3.format(format);
7503 var k = Math.max(.1, n / scale.ticks().length), f = positive ? (e = 1e-12, Math.ceil) : (e = -1e-12,
7504 Math.floor), e;
7505 return function(d) {
7506 return d / pow(f(log(d) + e)) <= k ? format(d) : "";
7507 };
7508 };
7509 scale.copy = function() {
7510 return d3_scale_log(linear.copy(), base, positive, domain);
7511 };
7512 return d3_scale_linearRebind(scale, linear);
7513 }
7514 var d3_scale_logFormat = d3.format(".0e"), d3_scale_logNiceNegative = {
7515 floor: function(x) {
7516 return -Math.ceil(-x);
7517 },
7518 ceil: function(x) {
7519 return -Math.floor(-x);
7520 }
7521 };
7522 d3.scale.pow = function() {
7523 return d3_scale_pow(d3.scale.linear(), 1, [ 0, 1 ]);
7524 };
7525 function d3_scale_pow(linear, exponent, domain) {
7526 var powp = d3_scale_powPow(exponent), powb = d3_scale_powPow(1 / exponent);
7527 function scale(x) {
7528 return linear(powp(x));
7529 }
7530 scale.invert = function(x) {
7531 return powb(linear.invert(x));
7532 };
7533 scale.domain = function(x) {
7534 if (!arguments.length) return domain;
7535 linear.domain((domain = x.map(Number)).map(powp));
7536 return scale;
7537 };
7538 scale.ticks = function(m) {
7539 return d3_scale_linearTicks(domain, m);
7540 };
7541 scale.tickFormat = function(m, format) {
7542 return d3_scale_linearTickFormat(domain, m, format);
7543 };
7544 scale.nice = function(m) {
7545 return scale.domain(d3_scale_linearNice(domain, m));
7546 };
7547 scale.exponent = function(x) {
7548 if (!arguments.length) return exponent;
7549 powp = d3_scale_powPow(exponent = x);
7550 powb = d3_scale_powPow(1 / exponent);
7551 linear.domain(domain.map(powp));
7552 return scale;
7553 };
7554 scale.copy = function() {
7555 return d3_scale_pow(linear.copy(), exponent, domain);
7556 };
7557 return d3_scale_linearRebind(scale, linear);
7558 }
7559 function d3_scale_powPow(e) {
7560 return function(x) {
7561 return x < 0 ? -Math.pow(-x, e) : Math.pow(x, e);
7562 };
7563 }
7564 d3.scale.sqrt = function() {
7565 return d3.scale.pow().exponent(.5);
7566 };
7567 d3.scale.ordinal = function() {
7568 return d3_scale_ordinal([], {
7569 t: "range",
7570 a: [ [] ]
7571 });
7572 };
7573 function d3_scale_ordinal(domain, ranger) {
7574 var index, range, rangeBand;
7575 function scale(x) {
7576 return range[((index.get(x) || (ranger.t === "range" ? index.set(x, domain.push(x)) : NaN)) - 1) % range.length];
7577 }
7578 function steps(start, step) {
7579 return d3.range(domain.length).map(function(i) {
7580 return start + step * i;
7581 });
7582 }
7583 scale.domain = function(x) {
7584 if (!arguments.length) return domain;
7585 domain = [];
7586 index = new d3_Map();
7587 var i = -1, n = x.length, xi;
7588 while (++i < n) if (!index.has(xi = x[i])) index.set(xi, domain.push(xi));
7589 return scale[ranger.t].apply(scale, ranger.a);
7590 };
7591 scale.range = function(x) {
7592 if (!arguments.length) return range;
7593 range = x;
7594 rangeBand = 0;
7595 ranger = {
7596 t: "range",
7597 a: arguments
7598 };
7599 return scale;
7600 };
7601 scale.rangePoints = function(x, padding) {
7602 if (arguments.length < 2) padding = 0;
7603 var start = x[0], stop = x[1], step = (stop - start) / (Math.max(1, domain.length - 1) + padding);
7604 range = steps(domain.length < 2 ? (start + stop) / 2 : start + step * padding / 2, step);
7605 rangeBand = 0;
7606 ranger = {
7607 t: "rangePoints",
7608 a: arguments
7609 };
7610 return scale;
7611 };
7612 scale.rangeBands = function(x, padding, outerPadding) {
7613 if (arguments.length < 2) padding = 0;
7614 if (arguments.length < 3) outerPadding = padding;
7615 var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = (stop - start) / (domain.length - padding + 2 * outerPadding);
7616 range = steps(start + step * outerPadding, step);
7617 if (reverse) range.reverse();
7618 rangeBand = step * (1 - padding);
7619 ranger = {
7620 t: "rangeBands",
7621 a: arguments
7622 };
7623 return scale;
7624 };
7625 scale.rangeRoundBands = function(x, padding, outerPadding) {
7626 if (arguments.length < 2) padding = 0;
7627 if (arguments.length < 3) outerPadding = padding;
7628 var reverse = x[1] < x[0], start = x[reverse - 0], stop = x[1 - reverse], step = Math.floor((stop - start) / (domain.length - padding + 2 * outerPadding)), error = stop - start - (domain.length - padding) * step;
7629 range = steps(start + Math.round(error / 2), step);
7630 if (reverse) range.reverse();
7631 rangeBand = Math.round(step * (1 - padding));
7632 ranger = {
7633 t: "rangeRoundBands",
7634 a: arguments
7635 };
7636 return scale;
7637 };
7638 scale.rangeBand = function() {
7639 return rangeBand;
7640 };
7641 scale.rangeExtent = function() {
7642 return d3_scaleExtent(ranger.a[0]);
7643 };
7644 scale.copy = function() {
7645 return d3_scale_ordinal(domain, ranger);
7646 };
7647 return scale.domain(domain);
7648 }
7649 d3.scale.category10 = function() {
7650 return d3.scale.ordinal().range(d3_category10);
7651 };
7652 d3.scale.category20 = function() {
7653 return d3.scale.ordinal().range(d3_category20);
7654 };
7655 d3.scale.category20b = function() {
7656 return d3.scale.ordinal().range(d3_category20b);
7657 };
7658 d3.scale.category20c = function() {
7659 return d3.scale.ordinal().range(d3_category20c);
7660 };
7661 var d3_category10 = [ 2062260, 16744206, 2924588, 14034728, 9725885, 9197131, 14907330, 8355711, 12369186, 1556175 ].map(d3_rgbString);
7662 var d3_category20 = [ 2062260, 11454440, 16744206, 16759672, 2924588, 10018698, 14034728, 16750742, 9725885, 12955861, 9197131, 12885140, 14907330, 16234194, 8355711, 13092807, 12369186, 14408589, 1556175, 10410725 ].map(d3_rgbString);
7663 var d3_category20b = [ 3750777, 5395619, 7040719, 10264286, 6519097, 9216594, 11915115, 13556636, 9202993, 12426809, 15186514, 15190932, 8666169, 11356490, 14049643, 15177372, 8077683, 10834324, 13528509, 14589654 ].map(d3_rgbString);
7664 var d3_category20c = [ 3244733, 7057110, 10406625, 13032431, 15095053, 16616764, 16625259, 16634018, 3253076, 7652470, 10607003, 13101504, 7695281, 10394312, 12369372, 14342891, 6513507, 9868950, 12434877, 14277081 ].map(d3_rgbString);
7665 d3.scale.quantile = function() {
7666 return d3_scale_quantile([], []);
7667 };
7668 function d3_scale_quantile(domain, range) {
7669 var thresholds;
7670 function rescale() {
7671 var k = 0, q = range.length;
7672 thresholds = [];
7673 while (++k < q) thresholds[k - 1] = d3.quantile(domain, k / q);
7674 return scale;
7675 }
7676 function scale(x) {
7677 if (!isNaN(x = +x)) return range[d3.bisect(thresholds, x)];
7678 }
7679 scale.domain = function(x) {
7680 if (!arguments.length) return domain;
7681 domain = x.filter(d3_number).sort(d3_ascending);
7682 return rescale();
7683 };
7684 scale.range = function(x) {
7685 if (!arguments.length) return range;
7686 range = x;
7687 return rescale();
7688 };
7689 scale.quantiles = function() {
7690 return thresholds;
7691 };
7692 scale.invertExtent = function(y) {
7693 y = range.indexOf(y);
7694 return y < 0 ? [ NaN, NaN ] : [ y > 0 ? thresholds[y - 1] : domain[0], y < thresholds.length ? thresholds[y] : domain[domain.length - 1] ];
7695 };
7696 scale.copy = function() {
7697 return d3_scale_quantile(domain, range);
7698 };
7699 return rescale();
7700 }
7701 d3.scale.quantize = function() {
7702 return d3_scale_quantize(0, 1, [ 0, 1 ]);
7703 };
7704 function d3_scale_quantize(x0, x1, range) {
7705 var kx, i;
7706 function scale(x) {
7707 return range[Math.max(0, Math.min(i, Math.floor(kx * (x - x0))))];
7708 }
7709 function rescale() {
7710 kx = range.length / (x1 - x0);
7711 i = range.length - 1;
7712 return scale;
7713 }
7714 scale.domain = function(x) {
7715 if (!arguments.length) return [ x0, x1 ];
7716 x0 = +x[0];
7717 x1 = +x[x.length - 1];
7718 return rescale();
7719 };
7720 scale.range = function(x) {
7721 if (!arguments.length) return range;
7722 range = x;
7723 return rescale();
7724 };
7725 scale.invertExtent = function(y) {
7726 y = range.indexOf(y);
7727 y = y < 0 ? NaN : y / kx + x0;
7728 return [ y, y + 1 / kx ];
7729 };
7730 scale.copy = function() {
7731 return d3_scale_quantize(x0, x1, range);
7732 };
7733 return rescale();
7734 }
7735 d3.scale.threshold = function() {
7736 return d3_scale_threshold([ .5 ], [ 0, 1 ]);
7737 };
7738 function d3_scale_threshold(domain, range) {
7739 function scale(x) {
7740 if (x <= x) return range[d3.bisect(domain, x)];
7741 }
7742 scale.domain = function(_) {
7743 if (!arguments.length) return domain;
7744 domain = _;
7745 return scale;
7746 };
7747 scale.range = function(_) {
7748 if (!arguments.length) return range;
7749 range = _;
7750 return scale;
7751 };
7752 scale.invertExtent = function(y) {
7753 y = range.indexOf(y);
7754 return [ domain[y - 1], domain[y] ];
7755 };
7756 scale.copy = function() {
7757 return d3_scale_threshold(domain, range);
7758 };
7759 return scale;
7760 }
7761 d3.scale.identity = function() {
7762 return d3_scale_identity([ 0, 1 ]);
7763 };
7764 function d3_scale_identity(domain) {
7765 function identity(x) {
7766 return +x;
7767 }
7768 identity.invert = identity;
7769 identity.domain = identity.range = function(x) {
7770 if (!arguments.length) return domain;
7771 domain = x.map(identity);
7772 return identity;
7773 };
7774 identity.ticks = function(m) {
7775 return d3_scale_linearTicks(domain, m);
7776 };
7777 identity.tickFormat = function(m, format) {
7778 return d3_scale_linearTickFormat(domain, m, format);
7779 };
7780 identity.copy = function() {
7781 return d3_scale_identity(domain);
7782 };
7783 return identity;
7784 }
7785 d3.svg = {};
7786 d3.svg.arc = function() {
7787 var innerRadius = d3_svg_arcInnerRadius, outerRadius = d3_svg_arcOuterRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
7788 function arc() {
7789 var r0 = innerRadius.apply(this, arguments), r1 = outerRadius.apply(this, arguments), a0 = startAngle.apply(this, arguments) + d3_svg_arcOffset, a1 = endAngle.apply(this, arguments) + d3_svg_arcOffset, da = (a1 < a0 && (da = a0,
7790 a0 = a1, a1 = da), a1 - a0), df = da < π ? "0" : "1", c0 = Math.cos(a0), s0 = Math.sin(a0), c1 = Math.cos(a1), s1 = Math.sin(a1);
7791 return da >= d3_svg_arcMax ? r0 ? "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "M0," + r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + -r0 + "A" + r0 + "," + r0 + " 0 1,0 0," + r0 + "Z" : "M0," + r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + -r1 + "A" + r1 + "," + r1 + " 0 1,1 0," + r1 + "Z" : r0 ? "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L" + r0 * c1 + "," + r0 * s1 + "A" + r0 + "," + r0 + " 0 " + df + ",0 " + r0 * c0 + "," + r0 * s0 + "Z" : "M" + r1 * c0 + "," + r1 * s0 + "A" + r1 + "," + r1 + " 0 " + df + ",1 " + r1 * c1 + "," + r1 * s1 + "L0,0" + "Z";
7792 }
7793 arc.innerRadius = function(v) {
7794 if (!arguments.length) return innerRadius;
7795 innerRadius = d3_functor(v);
7796 return arc;
7797 };
7798 arc.outerRadius = function(v) {
7799 if (!arguments.length) return outerRadius;
7800 outerRadius = d3_functor(v);
7801 return arc;
7802 };
7803 arc.startAngle = function(v) {
7804 if (!arguments.length) return startAngle;
7805 startAngle = d3_functor(v);
7806 return arc;
7807 };
7808 arc.endAngle = function(v) {
7809 if (!arguments.length) return endAngle;
7810 endAngle = d3_functor(v);
7811 return arc;
7812 };
7813 arc.centroid = function() {
7814 var r = (innerRadius.apply(this, arguments) + outerRadius.apply(this, arguments)) / 2, a = (startAngle.apply(this, arguments) + endAngle.apply(this, arguments)) / 2 + d3_svg_arcOffset;
7815 return [ Math.cos(a) * r, Math.sin(a) * r ];
7816 };
7817 return arc;
7818 };
7819 var d3_svg_arcOffset = -halfπ, d3_svg_arcMax = τ - ε;
7820 function d3_svg_arcInnerRadius(d) {
7821 return d.innerRadius;
7822 }
7823 function d3_svg_arcOuterRadius(d) {
7824 return d.outerRadius;
7825 }
7826 function d3_svg_arcStartAngle(d) {
7827 return d.startAngle;
7828 }
7829 function d3_svg_arcEndAngle(d) {
7830 return d.endAngle;
7831 }
7832 function d3_svg_line(projection) {
7833 var x = d3_geom_pointX, y = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, tension = .7;
7834 function line(data) {
7835 var segments = [], points = [], i = -1, n = data.length, d, fx = d3_functor(x), fy = d3_functor(y);
7836 function segment() {
7837 segments.push("M", interpolate(projection(points), tension));
7838 }
7839 while (++i < n) {
7840 if (defined.call(this, d = data[i], i)) {
7841 points.push([ +fx.call(this, d, i), +fy.call(this, d, i) ]);
7842 } else if (points.length) {
7843 segment();
7844 points = [];
7845 }
7846 }
7847 if (points.length) segment();
7848 return segments.length ? segments.join("") : null;
7849 }
7850 line.x = function(_) {
7851 if (!arguments.length) return x;
7852 x = _;
7853 return line;
7854 };
7855 line.y = function(_) {
7856 if (!arguments.length) return y;
7857 y = _;
7858 return line;
7859 };
7860 line.defined = function(_) {
7861 if (!arguments.length) return defined;
7862 defined = _;
7863 return line;
7864 };
7865 line.interpolate = function(_) {
7866 if (!arguments.length) return interpolateKey;
7867 if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
7868 return line;
7869 };
7870 line.tension = function(_) {
7871 if (!arguments.length) return tension;
7872 tension = _;
7873 return line;
7874 };
7875 return line;
7876 }
7877 d3.svg.line = function() {
7878 return d3_svg_line(d3_identity);
7879 };
7880 var d3_svg_lineInterpolators = d3.map({
7881 linear: d3_svg_lineLinear,
7882 "linear-closed": d3_svg_lineLinearClosed,
7883 step: d3_svg_lineStep,
7884 "step-before": d3_svg_lineStepBefore,
7885 "step-after": d3_svg_lineStepAfter,
7886 basis: d3_svg_lineBasis,
7887 "basis-open": d3_svg_lineBasisOpen,
7888 "basis-closed": d3_svg_lineBasisClosed,
7889 bundle: d3_svg_lineBundle,
7890 cardinal: d3_svg_lineCardinal,
7891 "cardinal-open": d3_svg_lineCardinalOpen,
7892 "cardinal-closed": d3_svg_lineCardinalClosed,
7893 monotone: d3_svg_lineMonotone
7894 });
7895 d3_svg_lineInterpolators.forEach(function(key, value) {
7896 value.key = key;
7897 value.closed = /-closed$/.test(key);
7898 });
7899 function d3_svg_lineLinear(points) {
7900 return points.join("L");
7901 }
7902 function d3_svg_lineLinearClosed(points) {
7903 return d3_svg_lineLinear(points) + "Z";
7904 }
7905 function d3_svg_lineStep(points) {
7906 var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
7907 while (++i < n) path.push("H", (p[0] + (p = points[i])[0]) / 2, "V", p[1]);
7908 if (n > 1) path.push("H", p[0]);
7909 return path.join("");
7910 }
7911 function d3_svg_lineStepBefore(points) {
7912 var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
7913 while (++i < n) path.push("V", (p = points[i])[1], "H", p[0]);
7914 return path.join("");
7915 }
7916 function d3_svg_lineStepAfter(points) {
7917 var i = 0, n = points.length, p = points[0], path = [ p[0], ",", p[1] ];
7918 while (++i < n) path.push("H", (p = points[i])[0], "V", p[1]);
7919 return path.join("");
7920 }
7921 function d3_svg_lineCardinalOpen(points, tension) {
7922 return points.length < 4 ? d3_svg_lineLinear(points) : points[1] + d3_svg_lineHermite(points.slice(1, points.length - 1), d3_svg_lineCardinalTangents(points, tension));
7923 }
7924 function d3_svg_lineCardinalClosed(points, tension) {
7925 return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite((points.push(points[0]),
7926 points), d3_svg_lineCardinalTangents([ points[points.length - 2] ].concat(points, [ points[1] ]), tension));
7927 }
7928 function d3_svg_lineCardinal(points, tension) {
7929 return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineCardinalTangents(points, tension));
7930 }
7931 function d3_svg_lineHermite(points, tangents) {
7932 if (tangents.length < 1 || points.length != tangents.length && points.length != tangents.length + 2) {
7933 return d3_svg_lineLinear(points);
7934 }
7935 var quad = points.length != tangents.length, path = "", p0 = points[0], p = points[1], t0 = tangents[0], t = t0, pi = 1;
7936 if (quad) {
7937 path += "Q" + (p[0] - t0[0] * 2 / 3) + "," + (p[1] - t0[1] * 2 / 3) + "," + p[0] + "," + p[1];
7938 p0 = points[1];
7939 pi = 2;
7940 }
7941 if (tangents.length > 1) {
7942 t = tangents[1];
7943 p = points[pi];
7944 pi++;
7945 path += "C" + (p0[0] + t0[0]) + "," + (p0[1] + t0[1]) + "," + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
7946 for (var i = 2; i < tangents.length; i++, pi++) {
7947 p = points[pi];
7948 t = tangents[i];
7949 path += "S" + (p[0] - t[0]) + "," + (p[1] - t[1]) + "," + p[0] + "," + p[1];
7950 }
7951 }
7952 if (quad) {
7953 var lp = points[pi];
7954 path += "Q" + (p[0] + t[0] * 2 / 3) + "," + (p[1] + t[1] * 2 / 3) + "," + lp[0] + "," + lp[1];
7955 }
7956 return path;
7957 }
7958 function d3_svg_lineCardinalTangents(points, tension) {
7959 var tangents = [], a = (1 - tension) / 2, p0, p1 = points[0], p2 = points[1], i = 1, n = points.length;
7960 while (++i < n) {
7961 p0 = p1;
7962 p1 = p2;
7963 p2 = points[i];
7964 tangents.push([ a * (p2[0] - p0[0]), a * (p2[1] - p0[1]) ]);
7965 }
7966 return tangents;
7967 }
7968 function d3_svg_lineBasis(points) {
7969 if (points.length < 3) return d3_svg_lineLinear(points);
7970 var i = 1, n = points.length, pi = points[0], x0 = pi[0], y0 = pi[1], px = [ x0, x0, x0, (pi = points[1])[0] ], py = [ y0, y0, y0, pi[1] ], path = [ x0, ",", y0, "L", d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
7971 points.push(points[n - 1]);
7972 while (++i <= n) {
7973 pi = points[i];
7974 px.shift();
7975 px.push(pi[0]);
7976 py.shift();
7977 py.push(pi[1]);
7978 d3_svg_lineBasisBezier(path, px, py);
7979 }
7980 points.pop();
7981 path.push("L", pi);
7982 return path.join("");
7983 }
7984 function d3_svg_lineBasisOpen(points) {
7985 if (points.length < 4) return d3_svg_lineLinear(points);
7986 var path = [], i = -1, n = points.length, pi, px = [ 0 ], py = [ 0 ];
7987 while (++i < 3) {
7988 pi = points[i];
7989 px.push(pi[0]);
7990 py.push(pi[1]);
7991 }
7992 path.push(d3_svg_lineDot4(d3_svg_lineBasisBezier3, px) + "," + d3_svg_lineDot4(d3_svg_lineBasisBezier3, py));
7993 --i;
7994 while (++i < n) {
7995 pi = points[i];
7996 px.shift();
7997 px.push(pi[0]);
7998 py.shift();
7999 py.push(pi[1]);
8000 d3_svg_lineBasisBezier(path, px, py);
8001 }
8002 return path.join("");
8003 }
8004 function d3_svg_lineBasisClosed(points) {
8005 var path, i = -1, n = points.length, m = n + 4, pi, px = [], py = [];
8006 while (++i < 4) {
8007 pi = points[i % n];
8008 px.push(pi[0]);
8009 py.push(pi[1]);
8010 }
8011 path = [ d3_svg_lineDot4(d3_svg_lineBasisBezier3, px), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, py) ];
8012 --i;
8013 while (++i < m) {
8014 pi = points[i % n];
8015 px.shift();
8016 px.push(pi[0]);
8017 py.shift();
8018 py.push(pi[1]);
8019 d3_svg_lineBasisBezier(path, px, py);
8020 }
8021 return path.join("");
8022 }
8023 function d3_svg_lineBundle(points, tension) {
8024 var n = points.length - 1;
8025 if (n) {
8026 var x0 = points[0][0], y0 = points[0][1], dx = points[n][0] - x0, dy = points[n][1] - y0, i = -1, p, t;
8027 while (++i <= n) {
8028 p = points[i];
8029 t = i / n;
8030 p[0] = tension * p[0] + (1 - tension) * (x0 + t * dx);
8031 p[1] = tension * p[1] + (1 - tension) * (y0 + t * dy);
8032 }
8033 }
8034 return d3_svg_lineBasis(points);
8035 }
8036 function d3_svg_lineDot4(a, b) {
8037 return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
8038 }
8039 var d3_svg_lineBasisBezier1 = [ 0, 2 / 3, 1 / 3, 0 ], d3_svg_lineBasisBezier2 = [ 0, 1 / 3, 2 / 3, 0 ], d3_svg_lineBasisBezier3 = [ 0, 1 / 6, 2 / 3, 1 / 6 ];
8040 function d3_svg_lineBasisBezier(path, x, y) {
8041 path.push("C", d3_svg_lineDot4(d3_svg_lineBasisBezier1, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier1, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier2, y), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, x), ",", d3_svg_lineDot4(d3_svg_lineBasisBezier3, y));
8042 }
8043 function d3_svg_lineSlope(p0, p1) {
8044 return (p1[1] - p0[1]) / (p1[0] - p0[0]);
8045 }
8046 function d3_svg_lineFiniteDifferences(points) {
8047 var i = 0, j = points.length - 1, m = [], p0 = points[0], p1 = points[1], d = m[0] = d3_svg_lineSlope(p0, p1);
8048 while (++i < j) {
8049 m[i] = (d + (d = d3_svg_lineSlope(p0 = p1, p1 = points[i + 1]))) / 2;
8050 }
8051 m[i] = d;
8052 return m;
8053 }
8054 function d3_svg_lineMonotoneTangents(points) {
8055 var tangents = [], d, a, b, s, m = d3_svg_lineFiniteDifferences(points), i = -1, j = points.length - 1;
8056 while (++i < j) {
8057 d = d3_svg_lineSlope(points[i], points[i + 1]);
8058 if (abs(d) < ε) {
8059 m[i] = m[i + 1] = 0;
8060 } else {
8061 a = m[i] / d;
8062 b = m[i + 1] / d;
8063 s = a * a + b * b;
8064 if (s > 9) {
8065 s = d * 3 / Math.sqrt(s);
8066 m[i] = s * a;
8067 m[i + 1] = s * b;
8068 }
8069 }
8070 }
8071 i = -1;
8072 while (++i <= j) {
8073 s = (points[Math.min(j, i + 1)][0] - points[Math.max(0, i - 1)][0]) / (6 * (1 + m[i] * m[i]));
8074 tangents.push([ s || 0, m[i] * s || 0 ]);
8075 }
8076 return tangents;
8077 }
8078 function d3_svg_lineMonotone(points) {
8079 return points.length < 3 ? d3_svg_lineLinear(points) : points[0] + d3_svg_lineHermite(points, d3_svg_lineMonotoneTangents(points));
8080 }
8081 d3.svg.line.radial = function() {
8082 var line = d3_svg_line(d3_svg_lineRadial);
8083 line.radius = line.x, delete line.x;
8084 line.angle = line.y, delete line.y;
8085 return line;
8086 };
8087 function d3_svg_lineRadial(points) {
8088 var point, i = -1, n = points.length, r, a;
8089 while (++i < n) {
8090 point = points[i];
8091 r = point[0];
8092 a = point[1] + d3_svg_arcOffset;
8093 point[0] = r * Math.cos(a);
8094 point[1] = r * Math.sin(a);
8095 }
8096 return points;
8097 }
8098 function d3_svg_area(projection) {
8099 var x0 = d3_geom_pointX, x1 = d3_geom_pointX, y0 = 0, y1 = d3_geom_pointY, defined = d3_true, interpolate = d3_svg_lineLinear, interpolateKey = interpolate.key, interpolateReverse = interpolate, L = "L", tension = .7;
8100 function area(data) {
8101 var segments = [], points0 = [], points1 = [], i = -1, n = data.length, d, fx0 = d3_functor(x0), fy0 = d3_functor(y0), fx1 = x0 === x1 ? function() {
8102 return x;
8103 } : d3_functor(x1), fy1 = y0 === y1 ? function() {
8104 return y;
8105 } : d3_functor(y1), x, y;
8106 function segment() {
8107 segments.push("M", interpolate(projection(points1), tension), L, interpolateReverse(projection(points0.reverse()), tension), "Z");
8108 }
8109 while (++i < n) {
8110 if (defined.call(this, d = data[i], i)) {
8111 points0.push([ x = +fx0.call(this, d, i), y = +fy0.call(this, d, i) ]);
8112 points1.push([ +fx1.call(this, d, i), +fy1.call(this, d, i) ]);
8113 } else if (points0.length) {
8114 segment();
8115 points0 = [];
8116 points1 = [];
8117 }
8118 }
8119 if (points0.length) segment();
8120 return segments.length ? segments.join("") : null;
8121 }
8122 area.x = function(_) {
8123 if (!arguments.length) return x1;
8124 x0 = x1 = _;
8125 return area;
8126 };
8127 area.x0 = function(_) {
8128 if (!arguments.length) return x0;
8129 x0 = _;
8130 return area;
8131 };
8132 area.x1 = function(_) {
8133 if (!arguments.length) return x1;
8134 x1 = _;
8135 return area;
8136 };
8137 area.y = function(_) {
8138 if (!arguments.length) return y1;
8139 y0 = y1 = _;
8140 return area;
8141 };
8142 area.y0 = function(_) {
8143 if (!arguments.length) return y0;
8144 y0 = _;
8145 return area;
8146 };
8147 area.y1 = function(_) {
8148 if (!arguments.length) return y1;
8149 y1 = _;
8150 return area;
8151 };
8152 area.defined = function(_) {
8153 if (!arguments.length) return defined;
8154 defined = _;
8155 return area;
8156 };
8157 area.interpolate = function(_) {
8158 if (!arguments.length) return interpolateKey;
8159 if (typeof _ === "function") interpolateKey = interpolate = _; else interpolateKey = (interpolate = d3_svg_lineInterpolators.get(_) || d3_svg_lineLinear).key;
8160 interpolateReverse = interpolate.reverse || interpolate;
8161 L = interpolate.closed ? "M" : "L";
8162 return area;
8163 };
8164 area.tension = function(_) {
8165 if (!arguments.length) return tension;
8166 tension = _;
8167 return area;
8168 };
8169 return area;
8170 }
8171 d3_svg_lineStepBefore.reverse = d3_svg_lineStepAfter;
8172 d3_svg_lineStepAfter.reverse = d3_svg_lineStepBefore;
8173 d3.svg.area = function() {
8174 return d3_svg_area(d3_identity);
8175 };
8176 d3.svg.area.radial = function() {
8177 var area = d3_svg_area(d3_svg_lineRadial);
8178 area.radius = area.x, delete area.x;
8179 area.innerRadius = area.x0, delete area.x0;
8180 area.outerRadius = area.x1, delete area.x1;
8181 area.angle = area.y, delete area.y;
8182 area.startAngle = area.y0, delete area.y0;
8183 area.endAngle = area.y1, delete area.y1;
8184 return area;
8185 };
8186 d3.svg.chord = function() {
8187 var source = d3_source, target = d3_target, radius = d3_svg_chordRadius, startAngle = d3_svg_arcStartAngle, endAngle = d3_svg_arcEndAngle;
8188 function chord(d, i) {
8189 var s = subgroup(this, source, d, i), t = subgroup(this, target, d, i);
8190 return "M" + s.p0 + arc(s.r, s.p1, s.a1 - s.a0) + (equals(s, t) ? curve(s.r, s.p1, s.r, s.p0) : curve(s.r, s.p1, t.r, t.p0) + arc(t.r, t.p1, t.a1 - t.a0) + curve(t.r, t.p1, s.r, s.p0)) + "Z";
8191 }
8192 function subgroup(self, f, d, i) {
8193 var subgroup = f.call(self, d, i), r = radius.call(self, subgroup, i), a0 = startAngle.call(self, subgroup, i) + d3_svg_arcOffset, a1 = endAngle.call(self, subgroup, i) + d3_svg_arcOffset;
8194 return {
8195 r: r,
8196 a0: a0,
8197 a1: a1,
8198 p0: [ r * Math.cos(a0), r * Math.sin(a0) ],
8199 p1: [ r * Math.cos(a1), r * Math.sin(a1) ]
8200 };
8201 }
8202 function equals(a, b) {
8203 return a.a0 == b.a0 && a.a1 == b.a1;
8204 }
8205 function arc(r, p, a) {
8206 return "A" + r + "," + r + " 0 " + +(a > π) + ",1 " + p;
8207 }
8208 function curve(r0, p0, r1, p1) {
8209 return "Q 0,0 " + p1;
8210 }
8211 chord.radius = function(v) {
8212 if (!arguments.length) return radius;
8213 radius = d3_functor(v);
8214 return chord;
8215 };
8216 chord.source = function(v) {
8217 if (!arguments.length) return source;
8218 source = d3_functor(v);
8219 return chord;
8220 };
8221 chord.target = function(v) {
8222 if (!arguments.length) return target;
8223 target = d3_functor(v);
8224 return chord;
8225 };
8226 chord.startAngle = function(v) {
8227 if (!arguments.length) return startAngle;
8228 startAngle = d3_functor(v);
8229 return chord;
8230 };
8231 chord.endAngle = function(v) {
8232 if (!arguments.length) return endAngle;
8233 endAngle = d3_functor(v);
8234 return chord;
8235 };
8236 return chord;
8237 };
8238 function d3_svg_chordRadius(d) {
8239 return d.radius;
8240 }
8241 d3.svg.diagonal = function() {
8242 var source = d3_source, target = d3_target, projection = d3_svg_diagonalProjection;
8243 function diagonal(d, i) {
8244 var p0 = source.call(this, d, i), p3 = target.call(this, d, i), m = (p0.y + p3.y) / 2, p = [ p0, {
8245 x: p0.x,
8246 y: m
8247 }, {
8248 x: p3.x,
8249 y: m
8250 }, p3 ];
8251 p = p.map(projection);
8252 return "M" + p[0] + "C" + p[1] + " " + p[2] + " " + p[3];
8253 }
8254 diagonal.source = function(x) {
8255 if (!arguments.length) return source;
8256 source = d3_functor(x);
8257 return diagonal;
8258 };
8259 diagonal.target = function(x) {
8260 if (!arguments.length) return target;
8261 target = d3_functor(x);
8262 return diagonal;
8263 };
8264 diagonal.projection = function(x) {
8265 if (!arguments.length) return projection;
8266 projection = x;
8267 return diagonal;
8268 };
8269 return diagonal;
8270 };
8271 function d3_svg_diagonalProjection(d) {
8272 return [ d.x, d.y ];
8273 }
8274 d3.svg.diagonal.radial = function() {
8275 var diagonal = d3.svg.diagonal(), projection = d3_svg_diagonalProjection, projection_ = diagonal.projection;
8276 diagonal.projection = function(x) {
8277 return arguments.length ? projection_(d3_svg_diagonalRadialProjection(projection = x)) : projection;
8278 };
8279 return diagonal;
8280 };
8281 function d3_svg_diagonalRadialProjection(projection) {
8282 return function() {
8283 var d = projection.apply(this, arguments), r = d[0], a = d[1] + d3_svg_arcOffset;
8284 return [ r * Math.cos(a), r * Math.sin(a) ];
8285 };
8286 }
8287 d3.svg.symbol = function() {
8288 var type = d3_svg_symbolType, size = d3_svg_symbolSize;
8289 function symbol(d, i) {
8290 return (d3_svg_symbols.get(type.call(this, d, i)) || d3_svg_symbolCircle)(size.call(this, d, i));
8291 }
8292 symbol.type = function(x) {
8293 if (!arguments.length) return type;
8294 type = d3_functor(x);
8295 return symbol;
8296 };
8297 symbol.size = function(x) {
8298 if (!arguments.length) return size;
8299 size = d3_functor(x);
8300 return symbol;
8301 };
8302 return symbol;
8303 };
8304 function d3_svg_symbolSize() {
8305 return 64;
8306 }
8307 function d3_svg_symbolType() {
8308 return "circle";
8309 }
8310 function d3_svg_symbolCircle(size) {
8311 var r = Math.sqrt(size / π);
8312 return "M0," + r + "A" + r + "," + r + " 0 1,1 0," + -r + "A" + r + "," + r + " 0 1,1 0," + r + "Z";
8313 }
8314 var d3_svg_symbols = d3.map({
8315 circle: d3_svg_symbolCircle,
8316 cross: function(size) {
8317 var r = Math.sqrt(size / 5) / 2;
8318 return "M" + -3 * r + "," + -r + "H" + -r + "V" + -3 * r + "H" + r + "V" + -r + "H" + 3 * r + "V" + r + "H" + r + "V" + 3 * r + "H" + -r + "V" + r + "H" + -3 * r + "Z";
8319 },
8320 diamond: function(size) {
8321 var ry = Math.sqrt(size / (2 * d3_svg_symbolTan30)), rx = ry * d3_svg_symbolTan30;
8322 return "M0," + -ry + "L" + rx + ",0" + " 0," + ry + " " + -rx + ",0" + "Z";
8323 },
8324 square: function(size) {
8325 var r = Math.sqrt(size) / 2;
8326 return "M" + -r + "," + -r + "L" + r + "," + -r + " " + r + "," + r + " " + -r + "," + r + "Z";
8327 },
8328 "triangle-down": function(size) {
8329 var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
8330 return "M0," + ry + "L" + rx + "," + -ry + " " + -rx + "," + -ry + "Z";
8331 },
8332 "triangle-up": function(size) {
8333 var rx = Math.sqrt(size / d3_svg_symbolSqrt3), ry = rx * d3_svg_symbolSqrt3 / 2;
8334 return "M0," + -ry + "L" + rx + "," + ry + " " + -rx + "," + ry + "Z";
8335 }
8336 });
8337 d3.svg.symbolTypes = d3_svg_symbols.keys();
8338 var d3_svg_symbolSqrt3 = Math.sqrt(3), d3_svg_symbolTan30 = Math.tan(30 * d3_radians);
8339 function d3_transition(groups, id) {
8340 d3_subclass(groups, d3_transitionPrototype);
8341 groups.id = id;
8342 return groups;
8343 }
8344 var d3_transitionPrototype = [], d3_transitionId = 0, d3_transitionInheritId, d3_transitionInherit;
8345 d3_transitionPrototype.call = d3_selectionPrototype.call;
8346 d3_transitionPrototype.empty = d3_selectionPrototype.empty;
8347 d3_transitionPrototype.node = d3_selectionPrototype.node;
8348 d3_transitionPrototype.size = d3_selectionPrototype.size;
8349 d3.transition = function(selection) {
8350 return arguments.length ? d3_transitionInheritId ? selection.transition() : selection : d3_selectionRoot.transition();
8351 };
8352 d3.transition.prototype = d3_transitionPrototype;
8353 d3_transitionPrototype.select = function(selector) {
8354 var id = this.id, subgroups = [], subgroup, subnode, node;
8355 selector = d3_selection_selector(selector);
8356 for (var j = -1, m = this.length; ++j < m; ) {
8357 subgroups.push(subgroup = []);
8358 for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
8359 if ((node = group[i]) && (subnode = selector.call(node, node.__data__, i, j))) {
8360 if ("__data__" in node) subnode.__data__ = node.__data__;
8361 d3_transitionNode(subnode, i, id, node.__transition__[id]);
8362 subgroup.push(subnode);
8363 } else {
8364 subgroup.push(null);
8365 }
8366 }
8367 }
8368 return d3_transition(subgroups, id);
8369 };
8370 d3_transitionPrototype.selectAll = function(selector) {
8371 var id = this.id, subgroups = [], subgroup, subnodes, node, subnode, transition;
8372 selector = d3_selection_selectorAll(selector);
8373 for (var j = -1, m = this.length; ++j < m; ) {
8374 for (var group = this[j], i = -1, n = group.length; ++i < n; ) {
8375 if (node = group[i]) {
8376 transition = node.__transition__[id];
8377 subnodes = selector.call(node, node.__data__, i, j);
8378 subgroups.push(subgroup = []);
8379 for (var k = -1, o = subnodes.length; ++k < o; ) {
8380 if (subnode = subnodes[k]) d3_transitionNode(subnode, k, id, transition);
8381 subgroup.push(subnode);
8382 }
8383 }
8384 }
8385 }
8386 return d3_transition(subgroups, id);
8387 };
8388 d3_transitionPrototype.filter = function(filter) {
8389 var subgroups = [], subgroup, group, node;
8390 if (typeof filter !== "function") filter = d3_selection_filter(filter);
8391 for (var j = 0, m = this.length; j < m; j++) {
8392 subgroups.push(subgroup = []);
8393 for (var group = this[j], i = 0, n = group.length; i < n; i++) {
8394 if ((node = group[i]) && filter.call(node, node.__data__, i, j)) {
8395 subgroup.push(node);
8396 }
8397 }
8398 }
8399 return d3_transition(subgroups, this.id);
8400 };
8401 d3_transitionPrototype.tween = function(name, tween) {
8402 var id = this.id;
8403 if (arguments.length < 2) return this.node().__transition__[id].tween.get(name);
8404 return d3_selection_each(this, tween == null ? function(node) {
8405 node.__transition__[id].tween.remove(name);
8406 } : function(node) {
8407 node.__transition__[id].tween.set(name, tween);
8408 });
8409 };
8410 function d3_transition_tween(groups, name, value, tween) {
8411 var id = groups.id;
8412 return d3_selection_each(groups, typeof value === "function" ? function(node, i, j) {
8413 node.__transition__[id].tween.set(name, tween(value.call(node, node.__data__, i, j)));
8414 } : (value = tween(value), function(node) {
8415 node.__transition__[id].tween.set(name, value);
8416 }));
8417 }
8418 d3_transitionPrototype.attr = function(nameNS, value) {
8419 if (arguments.length < 2) {
8420 for (value in nameNS) this.attr(value, nameNS[value]);
8421 return this;
8422 }
8423 var interpolate = nameNS == "transform" ? d3_interpolateTransform : d3_interpolate, name = d3.ns.qualify(nameNS);
8424 function attrNull() {
8425 this.removeAttribute(name);
8426 }
8427 function attrNullNS() {
8428 this.removeAttributeNS(name.space, name.local);
8429 }
8430 function attrTween(b) {
8431 return b == null ? attrNull : (b += "", function() {
8432 var a = this.getAttribute(name), i;
8433 return a !== b && (i = interpolate(a, b), function(t) {
8434 this.setAttribute(name, i(t));
8435 });
8436 });
8437 }
8438 function attrTweenNS(b) {
8439 return b == null ? attrNullNS : (b += "", function() {
8440 var a = this.getAttributeNS(name.space, name.local), i;
8441 return a !== b && (i = interpolate(a, b), function(t) {
8442 this.setAttributeNS(name.space, name.local, i(t));
8443 });
8444 });
8445 }
8446 return d3_transition_tween(this, "attr." + nameNS, value, name.local ? attrTweenNS : attrTween);
8447 };
8448 d3_transitionPrototype.attrTween = function(nameNS, tween) {
8449 var name = d3.ns.qualify(nameNS);
8450 function attrTween(d, i) {
8451 var f = tween.call(this, d, i, this.getAttribute(name));
8452 return f && function(t) {
8453 this.setAttribute(name, f(t));
8454 };
8455 }
8456 function attrTweenNS(d, i) {
8457 var f = tween.call(this, d, i, this.getAttributeNS(name.space, name.local));
8458 return f && function(t) {
8459 this.setAttributeNS(name.space, name.local, f(t));
8460 };
8461 }
8462 return this.tween("attr." + nameNS, name.local ? attrTweenNS : attrTween);
8463 };
8464 d3_transitionPrototype.style = function(name, value, priority) {
8465 var n = arguments.length;
8466 if (n < 3) {
8467 if (typeof name !== "string") {
8468 if (n < 2) value = "";
8469 for (priority in name) this.style(priority, name[priority], value);
8470 return this;
8471 }
8472 priority = "";
8473 }
8474 function styleNull() {
8475 this.style.removeProperty(name);
8476 }
8477 function styleString(b) {
8478 return b == null ? styleNull : (b += "", function() {
8479 var a = d3_window.getComputedStyle(this, null).getPropertyValue(name), i;
8480 return a !== b && (i = d3_interpolate(a, b), function(t) {
8481 this.style.setProperty(name, i(t), priority);
8482 });
8483 });
8484 }
8485 return d3_transition_tween(this, "style." + name, value, styleString);
8486 };
8487 d3_transitionPrototype.styleTween = function(name, tween, priority) {
8488 if (arguments.length < 3) priority = "";
8489 function styleTween(d, i) {
8490 var f = tween.call(this, d, i, d3_window.getComputedStyle(this, null).getPropertyValue(name));
8491 return f && function(t) {
8492 this.style.setProperty(name, f(t), priority);
8493 };
8494 }
8495 return this.tween("style." + name, styleTween);
8496 };
8497 d3_transitionPrototype.text = function(value) {
8498 return d3_transition_tween(this, "text", value, d3_transition_text);
8499 };
8500 function d3_transition_text(b) {
8501 if (b == null) b = "";
8502 return function() {
8503 this.textContent = b;
8504 };
8505 }
8506 d3_transitionPrototype.remove = function() {
8507 return this.each("end.transition", function() {
8508 var p;
8509 if (this.__transition__.count < 2 && (p = this.parentNode)) p.removeChild(this);
8510 });
8511 };
8512 d3_transitionPrototype.ease = function(value) {
8513 var id = this.id;
8514 if (arguments.length < 1) return this.node().__transition__[id].ease;
8515 if (typeof value !== "function") value = d3.ease.apply(d3, arguments);
8516 return d3_selection_each(this, function(node) {
8517 node.__transition__[id].ease = value;
8518 });
8519 };
8520 d3_transitionPrototype.delay = function(value) {
8521 var id = this.id;
8522 if (arguments.length < 1) return this.node().__transition__[id].delay;
8523 return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
8524 node.__transition__[id].delay = +value.call(node, node.__data__, i, j);
8525 } : (value = +value, function(node) {
8526 node.__transition__[id].delay = value;
8527 }));
8528 };
8529 d3_transitionPrototype.duration = function(value) {
8530 var id = this.id;
8531 if (arguments.length < 1) return this.node().__transition__[id].duration;
8532 return d3_selection_each(this, typeof value === "function" ? function(node, i, j) {
8533 node.__transition__[id].duration = Math.max(1, value.call(node, node.__data__, i, j));
8534 } : (value = Math.max(1, value), function(node) {
8535 node.__transition__[id].duration = value;
8536 }));
8537 };
8538 d3_transitionPrototype.each = function(type, listener) {
8539 var id = this.id;
8540 if (arguments.length < 2) {
8541 var inherit = d3_transitionInherit, inheritId = d3_transitionInheritId;
8542 d3_transitionInheritId = id;
8543 d3_selection_each(this, function(node, i, j) {
8544 d3_transitionInherit = node.__transition__[id];
8545 type.call(node, node.__data__, i, j);
8546 });
8547 d3_transitionInherit = inherit;
8548 d3_transitionInheritId = inheritId;
8549 } else {
8550 d3_selection_each(this, function(node) {
8551 var transition = node.__transition__[id];
8552 (transition.event || (transition.event = d3.dispatch("start", "end"))).on(type, listener);
8553 });
8554 }
8555 return this;
8556 };
8557 d3_transitionPrototype.transition = function() {
8558 var id0 = this.id, id1 = ++d3_transitionId, subgroups = [], subgroup, group, node, transition;
8559 for (var j = 0, m = this.length; j < m; j++) {
8560 subgroups.push(subgroup = []);
8561 for (var group = this[j], i = 0, n = group.length; i < n; i++) {
8562 if (node = group[i]) {
8563 transition = Object.create(node.__transition__[id0]);
8564 transition.delay += transition.duration;
8565 d3_transitionNode(node, i, id1, transition);
8566 }
8567 subgroup.push(node);
8568 }
8569 }
8570 return d3_transition(subgroups, id1);
8571 };
8572 function d3_transitionNode(node, i, id, inherit) {
8573 var lock = node.__transition__ || (node.__transition__ = {
8574 active: 0,
8575 count: 0
8576 }), transition = lock[id];
8577 if (!transition) {
8578 var time = inherit.time;
8579 transition = lock[id] = {
8580 tween: new d3_Map(),
8581 time: time,
8582 ease: inherit.ease,
8583 delay: inherit.delay,
8584 duration: inherit.duration
8585 };
8586 ++lock.count;
8587 d3.timer(function(elapsed) {
8588 var d = node.__data__, ease = transition.ease, delay = transition.delay, duration = transition.duration, timer = d3_timer_active, tweened = [];
8589 timer.t = delay + time;
8590 if (delay <= elapsed) return start(elapsed - delay);
8591 timer.c = start;
8592 function start(elapsed) {
8593 if (lock.active > id) return stop();
8594 lock.active = id;
8595 transition.event && transition.event.start.call(node, d, i);
8596 transition.tween.forEach(function(key, value) {
8597 if (value = value.call(node, d, i)) {
8598 tweened.push(value);
8599 }
8600 });
8601 d3.timer(function() {
8602 timer.c = tick(elapsed || 1) ? d3_true : tick;
8603 return 1;
8604 }, 0, time);
8605 }
8606 function tick(elapsed) {
8607 if (lock.active !== id) return stop();
8608 var t = elapsed / duration, e = ease(t), n = tweened.length;
8609 while (n > 0) {
8610 tweened[--n].call(node, e);
8611 }
8612 if (t >= 1) {
8613 transition.event && transition.event.end.call(node, d, i);
8614 return stop();
8615 }
8616 }
8617 function stop() {
8618 if (--lock.count) delete lock[id]; else delete node.__transition__;
8619 return 1;
8620 }
8621 }, 0, time);
8622 }
8623 }
8624 d3.svg.axis = function() {
8625 var scale = d3.scale.linear(), orient = d3_svg_axisDefaultOrient, innerTickSize = 6, outerTickSize = 6, tickPadding = 3, tickArguments_ = [ 10 ], tickValues = null, tickFormat_;
8626 function axis(g) {
8627 g.each(function() {
8628 var g = d3.select(this);
8629 var scale0 = this.__chart__ || scale, scale1 = this.__chart__ = scale.copy();
8630 var ticks = tickValues == null ? scale1.ticks ? scale1.ticks.apply(scale1, tickArguments_) : scale1.domain() : tickValues, tickFormat = tickFormat_ == null ? scale1.tickFormat ? scale1.tickFormat.apply(scale1, tickArguments_) : d3_identity : tickFormat_, tick = g.selectAll(".tick").data(ticks, scale1), tickEnter = tick.enter().insert("g", ".domain").attr("class", "tick").style("opacity", ε), tickExit = d3.transition(tick.exit()).style("opacity", ε).remove(), tickUpdate = d3.transition(tick.order()).style("opacity", 1), tickTransform;
8631 var range = d3_scaleRange(scale1), path = g.selectAll(".domain").data([ 0 ]), pathUpdate = (path.enter().append("path").attr("class", "domain"),
8632 d3.transition(path));
8633 tickEnter.append("line");
8634 tickEnter.append("text");
8635 var lineEnter = tickEnter.select("line"), lineUpdate = tickUpdate.select("line"), text = tick.select("text").text(tickFormat), textEnter = tickEnter.select("text"), textUpdate = tickUpdate.select("text");
8636 switch (orient) {
8637 case "bottom":
8638 {
8639 tickTransform = d3_svg_axisX;
8640 lineEnter.attr("y2", innerTickSize);
8641 textEnter.attr("y", Math.max(innerTickSize, 0) + tickPadding);
8642 lineUpdate.attr("x2", 0).attr("y2", innerTickSize);
8643 textUpdate.attr("x", 0).attr("y", Math.max(innerTickSize, 0) + tickPadding);
8644 text.attr("dy", ".71em").style("text-anchor", "middle");
8645 pathUpdate.attr("d", "M" + range[0] + "," + outerTickSize + "V0H" + range[1] + "V" + outerTickSize);
8646 break;
8647 }
8648
8649 case "top":
8650 {
8651 tickTransform = d3_svg_axisX;
8652 lineEnter.attr("y2", -innerTickSize);
8653 textEnter.attr("y", -(Math.max(innerTickSize, 0) + tickPadding));
8654 lineUpdate.attr("x2", 0).attr("y2", -innerTickSize);
8655 textUpdate.attr("x", 0).attr("y", -(Math.max(innerTickSize, 0) + tickPadding));
8656 text.attr("dy", "0em").style("text-anchor", "middle");
8657 pathUpdate.attr("d", "M" + range[0] + "," + -outerTickSize + "V0H" + range[1] + "V" + -outerTickSize);
8658 break;
8659 }
8660
8661 case "left":
8662 {
8663 tickTransform = d3_svg_axisY;
8664 lineEnter.attr("x2", -innerTickSize);
8665 textEnter.attr("x", -(Math.max(innerTickSize, 0) + tickPadding));
8666 lineUpdate.attr("x2", -innerTickSize).attr("y2", 0);
8667 textUpdate.attr("x", -(Math.max(innerTickSize, 0) + tickPadding)).attr("y", 0);
8668 text.attr("dy", ".32em").style("text-anchor", "end");
8669 pathUpdate.attr("d", "M" + -outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + -outerTickSize);
8670 break;
8671 }
8672
8673 case "right":
8674 {
8675 tickTransform = d3_svg_axisY;
8676 lineEnter.attr("x2", innerTickSize);
8677 textEnter.attr("x", Math.max(innerTickSize, 0) + tickPadding);
8678 lineUpdate.attr("x2", innerTickSize).attr("y2", 0);
8679 textUpdate.attr("x", Math.max(innerTickSize, 0) + tickPadding).attr("y", 0);
8680 text.attr("dy", ".32em").style("text-anchor", "start");
8681 pathUpdate.attr("d", "M" + outerTickSize + "," + range[0] + "H0V" + range[1] + "H" + outerTickSize);
8682 break;
8683 }
8684 }
8685 if (scale1.rangeBand) {
8686 var x = scale1, dx = x.rangeBand() / 2;
8687 scale0 = scale1 = function(d) {
8688 return x(d) + dx;
8689 };
8690 } else if (scale0.rangeBand) {
8691 scale0 = scale1;
8692 } else {
8693 tickExit.call(tickTransform, scale1);
8694 }
8695 tickEnter.call(tickTransform, scale0);
8696 tickUpdate.call(tickTransform, scale1);
8697 });
8698 }
8699 axis.scale = function(x) {
8700 if (!arguments.length) return scale;
8701 scale = x;
8702 return axis;
8703 };
8704 axis.orient = function(x) {
8705 if (!arguments.length) return orient;
8706 orient = x in d3_svg_axisOrients ? x + "" : d3_svg_axisDefaultOrient;
8707 return axis;
8708 };
8709 axis.ticks = function() {
8710 if (!arguments.length) return tickArguments_;
8711 tickArguments_ = arguments;
8712 return axis;
8713 };
8714 axis.tickValues = function(x) {
8715 if (!arguments.length) return tickValues;
8716 tickValues = x;
8717 return axis;
8718 };
8719 axis.tickFormat = function(x) {
8720 if (!arguments.length) return tickFormat_;
8721 tickFormat_ = x;
8722 return axis;
8723 };
8724 axis.tickSize = function(x) {
8725 var n = arguments.length;
8726 if (!n) return innerTickSize;
8727 innerTickSize = +x;
8728 outerTickSize = +arguments[n - 1];
8729 return axis;
8730 };
8731 axis.innerTickSize = function(x) {
8732 if (!arguments.length) return innerTickSize;
8733 innerTickSize = +x;
8734 return axis;
8735 };
8736 axis.outerTickSize = function(x) {
8737 if (!arguments.length) return outerTickSize;
8738 outerTickSize = +x;
8739 return axis;
8740 };
8741 axis.tickPadding = function(x) {
8742 if (!arguments.length) return tickPadding;
8743 tickPadding = +x;
8744 return axis;
8745 };
8746 axis.tickSubdivide = function() {
8747 return arguments.length && axis;
8748 };
8749 return axis;
8750 };
8751 var d3_svg_axisDefaultOrient = "bottom", d3_svg_axisOrients = {
8752 top: 1,
8753 right: 1,
8754 bottom: 1,
8755 left: 1
8756 };
8757 function d3_svg_axisX(selection, x) {
8758 selection.attr("transform", function(d) {
8759 return "translate(" + x(d) + ",0)";
8760 });
8761 }
8762 function d3_svg_axisY(selection, y) {
8763 selection.attr("transform", function(d) {
8764 return "translate(0," + y(d) + ")";
8765 });
8766 }
8767 d3.svg.brush = function() {
8768 var event = d3_eventDispatch(brush, "brushstart", "brush", "brushend"), x = null, y = null, xExtent = [ 0, 0 ], yExtent = [ 0, 0 ], xExtentDomain, yExtentDomain, xClamp = true, yClamp = true, resizes = d3_svg_brushResizes[0];
8769 function brush(g) {
8770 g.each(function() {
8771 var g = d3.select(this).style("pointer-events", "all").style("-webkit-tap-highlight-color", "rgba(0,0,0,0)").on("mousedown.brush", brushstart).on("touchstart.brush", brushstart);
8772 var background = g.selectAll(".background").data([ 0 ]);
8773 background.enter().append("rect").attr("class", "background").style("visibility", "hidden").style("cursor", "crosshair");
8774 g.selectAll(".extent").data([ 0 ]).enter().append("rect").attr("class", "extent").style("cursor", "move");
8775 var resize = g.selectAll(".resize").data(resizes, d3_identity);
8776 resize.exit().remove();
8777 resize.enter().append("g").attr("class", function(d) {
8778 return "resize " + d;
8779 }).style("cursor", function(d) {
8780 return d3_svg_brushCursor[d];
8781 }).append("rect").attr("x", function(d) {
8782 return /[ew]$/.test(d) ? -3 : null;
8783 }).attr("y", function(d) {
8784 return /^[ns]/.test(d) ? -3 : null;
8785 }).attr("width", 6).attr("height", 6).style("visibility", "hidden");
8786 resize.style("display", brush.empty() ? "none" : null);
8787 var gUpdate = d3.transition(g), backgroundUpdate = d3.transition(background), range;
8788 if (x) {
8789 range = d3_scaleRange(x);
8790 backgroundUpdate.attr("x", range[0]).attr("width", range[1] - range[0]);
8791 redrawX(gUpdate);
8792 }
8793 if (y) {
8794 range = d3_scaleRange(y);
8795 backgroundUpdate.attr("y", range[0]).attr("height", range[1] - range[0]);
8796 redrawY(gUpdate);
8797 }
8798 redraw(gUpdate);
8799 });
8800 }
8801 brush.event = function(g) {
8802 g.each(function() {
8803 var event_ = event.of(this, arguments), extent1 = {
8804 x: xExtent,
8805 y: yExtent,
8806 i: xExtentDomain,
8807 j: yExtentDomain
8808 }, extent0 = this.__chart__ || extent1;
8809 this.__chart__ = extent1;
8810 if (d3_transitionInheritId) {
8811 d3.select(this).transition().each("start.brush", function() {
8812 xExtentDomain = extent0.i;
8813 yExtentDomain = extent0.j;
8814 xExtent = extent0.x;
8815 yExtent = extent0.y;
8816 event_({
8817 type: "brushstart"
8818 });
8819 }).tween("brush:brush", function() {
8820 var xi = d3_interpolateArray(xExtent, extent1.x), yi = d3_interpolateArray(yExtent, extent1.y);
8821 xExtentDomain = yExtentDomain = null;
8822 return function(t) {
8823 xExtent = extent1.x = xi(t);
8824 yExtent = extent1.y = yi(t);
8825 event_({
8826 type: "brush",
8827 mode: "resize"
8828 });
8829 };
8830 }).each("end.brush", function() {
8831 xExtentDomain = extent1.i;
8832 yExtentDomain = extent1.j;
8833 event_({
8834 type: "brush",
8835 mode: "resize"
8836 });
8837 event_({
8838 type: "brushend"
8839 });
8840 });
8841 } else {
8842 event_({
8843 type: "brushstart"
8844 });
8845 event_({
8846 type: "brush",
8847 mode: "resize"
8848 });
8849 event_({
8850 type: "brushend"
8851 });
8852 }
8853 });
8854 };
8855 function redraw(g) {
8856 g.selectAll(".resize").attr("transform", function(d) {
8857 return "translate(" + xExtent[+/e$/.test(d)] + "," + yExtent[+/^s/.test(d)] + ")";
8858 });
8859 }
8860 function redrawX(g) {
8861 g.select(".extent").attr("x", xExtent[0]);
8862 g.selectAll(".extent,.n>rect,.s>rect").attr("width", xExtent[1] - xExtent[0]);
8863 }
8864 function redrawY(g) {
8865 g.select(".extent").attr("y", yExtent[0]);
8866 g.selectAll(".extent,.e>rect,.w>rect").attr("height", yExtent[1] - yExtent[0]);
8867 }
8868 function brushstart() {
8869 var target = this, eventTarget = d3.select(d3.event.target), event_ = event.of(target, arguments), g = d3.select(target), resizing = eventTarget.datum(), resizingX = !/^(n|s)$/.test(resizing) && x, resizingY = !/^(e|w)$/.test(resizing) && y, dragging = eventTarget.classed("extent"), dragRestore = d3_event_dragSuppress(), center, origin = d3.mouse(target), offset;
8870 var w = d3.select(d3_window).on("keydown.brush", keydown).on("keyup.brush", keyup);
8871 if (d3.event.changedTouches) {
8872 w.on("touchmove.brush", brushmove).on("touchend.brush", brushend);
8873 } else {
8874 w.on("mousemove.brush", brushmove).on("mouseup.brush", brushend);
8875 }
8876 g.interrupt().selectAll("*").interrupt();
8877 if (dragging) {
8878 origin[0] = xExtent[0] - origin[0];
8879 origin[1] = yExtent[0] - origin[1];
8880 } else if (resizing) {
8881 var ex = +/w$/.test(resizing), ey = +/^n/.test(resizing);
8882 offset = [ xExtent[1 - ex] - origin[0], yExtent[1 - ey] - origin[1] ];
8883 origin[0] = xExtent[ex];
8884 origin[1] = yExtent[ey];
8885 } else if (d3.event.altKey) center = origin.slice();
8886 g.style("pointer-events", "none").selectAll(".resize").style("display", null);
8887 d3.select("body").style("cursor", eventTarget.style("cursor"));
8888 event_({
8889 type: "brushstart"
8890 });
8891 brushmove();
8892 function keydown() {
8893 if (d3.event.keyCode == 32) {
8894 if (!dragging) {
8895 center = null;
8896 origin[0] -= xExtent[1];
8897 origin[1] -= yExtent[1];
8898 dragging = 2;
8899 }
8900 d3_eventPreventDefault();
8901 }
8902 }
8903 function keyup() {
8904 if (d3.event.keyCode == 32 && dragging == 2) {
8905 origin[0] += xExtent[1];
8906 origin[1] += yExtent[1];
8907 dragging = 0;
8908 d3_eventPreventDefault();
8909 }
8910 }
8911 function brushmove() {
8912 var point = d3.mouse(target), moved = false;
8913 if (offset) {
8914 point[0] += offset[0];
8915 point[1] += offset[1];
8916 }
8917 if (!dragging) {
8918 if (d3.event.altKey) {
8919 if (!center) center = [ (xExtent[0] + xExtent[1]) / 2, (yExtent[0] + yExtent[1]) / 2 ];
8920 origin[0] = xExtent[+(point[0] < center[0])];
8921 origin[1] = yExtent[+(point[1] < center[1])];
8922 } else center = null;
8923 }
8924 if (resizingX && move1(point, x, 0)) {
8925 redrawX(g);
8926 moved = true;
8927 }
8928 if (resizingY && move1(point, y, 1)) {
8929 redrawY(g);
8930 moved = true;
8931 }
8932 if (moved) {
8933 redraw(g);
8934 event_({
8935 type: "brush",
8936 mode: dragging ? "move" : "resize"
8937 });
8938 }
8939 }
8940 function move1(point, scale, i) {
8941 var range = d3_scaleRange(scale), r0 = range[0], r1 = range[1], position = origin[i], extent = i ? yExtent : xExtent, size = extent[1] - extent[0], min, max;
8942 if (dragging) {
8943 r0 -= position;
8944 r1 -= size + position;
8945 }
8946 min = (i ? yClamp : xClamp) ? Math.max(r0, Math.min(r1, point[i])) : point[i];
8947 if (dragging) {
8948 max = (min += position) + size;
8949 } else {
8950 if (center) position = Math.max(r0, Math.min(r1, 2 * center[i] - min));
8951 if (position < min) {
8952 max = min;
8953 min = position;
8954 } else {
8955 max = position;
8956 }
8957 }
8958 if (extent[0] != min || extent[1] != max) {
8959 if (i) yExtentDomain = null; else xExtentDomain = null;
8960 extent[0] = min;
8961 extent[1] = max;
8962 return true;
8963 }
8964 }
8965 function brushend() {
8966 brushmove();
8967 g.style("pointer-events", "all").selectAll(".resize").style("display", brush.empty() ? "none" : null);
8968 d3.select("body").style("cursor", null);
8969 w.on("mousemove.brush", null).on("mouseup.brush", null).on("touchmove.brush", null).on("touchend.brush", null).on("keydown.brush", null).on("keyup.brush", null);
8970 dragRestore();
8971 event_({
8972 type: "brushend"
8973 });
8974 }
8975 }
8976 brush.x = function(z) {
8977 if (!arguments.length) return x;
8978 x = z;
8979 resizes = d3_svg_brushResizes[!x << 1 | !y];
8980 return brush;
8981 };
8982 brush.y = function(z) {
8983 if (!arguments.length) return y;
8984 y = z;
8985 resizes = d3_svg_brushResizes[!x << 1 | !y];
8986 return brush;
8987 };
8988 brush.clamp = function(z) {
8989 if (!arguments.length) return x && y ? [ xClamp, yClamp ] : x ? xClamp : y ? yClamp : null;
8990 if (x && y) xClamp = !!z[0], yClamp = !!z[1]; else if (x) xClamp = !!z; else if (y) yClamp = !!z;
8991 return brush;
8992 };
8993 brush.extent = function(z) {
8994 var x0, x1, y0, y1, t;
8995 if (!arguments.length) {
8996 if (x) {
8997 if (xExtentDomain) {
8998 x0 = xExtentDomain[0], x1 = xExtentDomain[1];
8999 } else {
9000 x0 = xExtent[0], x1 = xExtent[1];
9001 if (x.invert) x0 = x.invert(x0), x1 = x.invert(x1);
9002 if (x1 < x0) t = x0, x0 = x1, x1 = t;
9003 }
9004 }
9005 if (y) {
9006 if (yExtentDomain) {
9007 y0 = yExtentDomain[0], y1 = yExtentDomain[1];
9008 } else {
9009 y0 = yExtent[0], y1 = yExtent[1];
9010 if (y.invert) y0 = y.invert(y0), y1 = y.invert(y1);
9011 if (y1 < y0) t = y0, y0 = y1, y1 = t;
9012 }
9013 }
9014 return x && y ? [ [ x0, y0 ], [ x1, y1 ] ] : x ? [ x0, x1 ] : y && [ y0, y1 ];
9015 }
9016 if (x) {
9017 x0 = z[0], x1 = z[1];
9018 if (y) x0 = x0[0], x1 = x1[0];
9019 xExtentDomain = [ x0, x1 ];
9020 if (x.invert) x0 = x(x0), x1 = x(x1);
9021 if (x1 < x0) t = x0, x0 = x1, x1 = t;
9022 if (x0 != xExtent[0] || x1 != xExtent[1]) xExtent = [ x0, x1 ];
9023 }
9024 if (y) {
9025 y0 = z[0], y1 = z[1];
9026 if (x) y0 = y0[1], y1 = y1[1];
9027 yExtentDomain = [ y0, y1 ];
9028 if (y.invert) y0 = y(y0), y1 = y(y1);
9029 if (y1 < y0) t = y0, y0 = y1, y1 = t;
9030 if (y0 != yExtent[0] || y1 != yExtent[1]) yExtent = [ y0, y1 ];
9031 }
9032 return brush;
9033 };
9034 brush.clear = function() {
9035 if (!brush.empty()) {
9036 xExtent = [ 0, 0 ], yExtent = [ 0, 0 ];
9037 xExtentDomain = yExtentDomain = null;
9038 }
9039 return brush;
9040 };
9041 brush.empty = function() {
9042 return !!x && xExtent[0] == xExtent[1] || !!y && yExtent[0] == yExtent[1];
9043 };
9044 return d3.rebind(brush, event, "on");
9045 };
9046 var d3_svg_brushCursor = {
9047 n: "ns-resize",
9048 e: "ew-resize",
9049 s: "ns-resize",
9050 w: "ew-resize",
9051 nw: "nwse-resize",
9052 ne: "nesw-resize",
9053 se: "nwse-resize",
9054 sw: "nesw-resize"
9055 };
9056 var d3_svg_brushResizes = [ [ "n", "e", "s", "w", "nw", "ne", "se", "sw" ], [ "e", "w" ], [ "n", "s" ], [] ];
9057 var d3_time_format = d3_time.format = d3_locale_enUS.timeFormat;
9058 var d3_time_formatUtc = d3_time_format.utc;
9059 var d3_time_formatIso = d3_time_formatUtc("%Y-%m-%dT%H:%M:%S.%LZ");
9060 d3_time_format.iso = Date.prototype.toISOString && +new Date("2000-01-01T00:00:00.000Z") ? d3_time_formatIsoNative : d3_time_formatIso;
9061 function d3_time_formatIsoNative(date) {
9062 return date.toISOString();
9063 }
9064 d3_time_formatIsoNative.parse = function(string) {
9065 var date = new Date(string);
9066 return isNaN(date) ? null : date;
9067 };
9068 d3_time_formatIsoNative.toString = d3_time_formatIso.toString;
9069 d3_time.second = d3_time_interval(function(date) {
9070 return new d3_date(Math.floor(date / 1e3) * 1e3);
9071 }, function(date, offset) {
9072 date.setTime(date.getTime() + Math.floor(offset) * 1e3);
9073 }, function(date) {
9074 return date.getSeconds();
9075 });
9076 d3_time.seconds = d3_time.second.range;
9077 d3_time.seconds.utc = d3_time.second.utc.range;
9078 d3_time.minute = d3_time_interval(function(date) {
9079 return new d3_date(Math.floor(date / 6e4) * 6e4);
9080 }, function(date, offset) {
9081 date.setTime(date.getTime() + Math.floor(offset) * 6e4);
9082 }, function(date) {
9083 return date.getMinutes();
9084 });
9085 d3_time.minutes = d3_time.minute.range;
9086 d3_time.minutes.utc = d3_time.minute.utc.range;
9087 d3_time.hour = d3_time_interval(function(date) {
9088 var timezone = date.getTimezoneOffset() / 60;
9089 return new d3_date((Math.floor(date / 36e5 - timezone) + timezone) * 36e5);
9090 }, function(date, offset) {
9091 date.setTime(date.getTime() + Math.floor(offset) * 36e5);
9092 }, function(date) {
9093 return date.getHours();
9094 });
9095 d3_time.hours = d3_time.hour.range;
9096 d3_time.hours.utc = d3_time.hour.utc.range;
9097 d3_time.month = d3_time_interval(function(date) {
9098 date = d3_time.day(date);
9099 date.setDate(1);
9100 return date;
9101 }, function(date, offset) {
9102 date.setMonth(date.getMonth() + offset);
9103 }, function(date) {
9104 return date.getMonth();
9105 });
9106 d3_time.months = d3_time.month.range;
9107 d3_time.months.utc = d3_time.month.utc.range;
9108 function d3_time_scale(linear, methods, format) {
9109 function scale(x) {
9110 return linear(x);
9111 }
9112 scale.invert = function(x) {
9113 return d3_time_scaleDate(linear.invert(x));
9114 };
9115 scale.domain = function(x) {
9116 if (!arguments.length) return linear.domain().map(d3_time_scaleDate);
9117 linear.domain(x);
9118 return scale;
9119 };
9120 function tickMethod(extent, count) {
9121 var span = extent[1] - extent[0], target = span / count, i = d3.bisect(d3_time_scaleSteps, target);
9122 return i == d3_time_scaleSteps.length ? [ methods.year, d3_scale_linearTickRange(extent.map(function(d) {
9123 return d / 31536e6;
9124 }), count)[2] ] : !i ? [ d3_time_scaleMilliseconds, d3_scale_linearTickRange(extent, count)[2] ] : methods[target / d3_time_scaleSteps[i - 1] < d3_time_scaleSteps[i] / target ? i - 1 : i];
9125 }
9126 scale.nice = function(interval, skip) {
9127 var domain = scale.domain(), extent = d3_scaleExtent(domain), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" && tickMethod(extent, interval);
9128 if (method) interval = method[0], skip = method[1];
9129 function skipped(date) {
9130 return !isNaN(date) && !interval.range(date, d3_time_scaleDate(+date + 1), skip).length;
9131 }
9132 return scale.domain(d3_scale_nice(domain, skip > 1 ? {
9133 floor: function(date) {
9134 while (skipped(date = interval.floor(date))) date = d3_time_scaleDate(date - 1);
9135 return date;
9136 },
9137 ceil: function(date) {
9138 while (skipped(date = interval.ceil(date))) date = d3_time_scaleDate(+date + 1);
9139 return date;
9140 }
9141 } : interval));
9142 };
9143 scale.ticks = function(interval, skip) {
9144 var extent = d3_scaleExtent(scale.domain()), method = interval == null ? tickMethod(extent, 10) : typeof interval === "number" ? tickMethod(extent, interval) : !interval.range && [ {
9145 range: interval
9146 }, skip ];
9147 if (method) interval = method[0], skip = method[1];
9148 return interval.range(extent[0], d3_time_scaleDate(+extent[1] + 1), skip < 1 ? 1 : skip);
9149 };
9150 scale.tickFormat = function() {
9151 return format;
9152 };
9153 scale.copy = function() {
9154 return d3_time_scale(linear.copy(), methods, format);
9155 };
9156 return d3_scale_linearRebind(scale, linear);
9157 }
9158 function d3_time_scaleDate(t) {
9159 return new Date(t);
9160 }
9161 var d3_time_scaleSteps = [ 1e3, 5e3, 15e3, 3e4, 6e4, 3e5, 9e5, 18e5, 36e5, 108e5, 216e5, 432e5, 864e5, 1728e5, 6048e5, 2592e6, 7776e6, 31536e6 ];
9162 var d3_time_scaleLocalMethods = [ [ d3_time.second, 1 ], [ d3_time.second, 5 ], [ d3_time.second, 15 ], [ d3_time.second, 30 ], [ d3_time.minute, 1 ], [ d3_time.minute, 5 ], [ d3_time.minute, 15 ], [ d3_time.minute, 30 ], [ d3_time.hour, 1 ], [ d3_time.hour, 3 ], [ d3_time.hour, 6 ], [ d3_time.hour, 12 ], [ d3_time.day, 1 ], [ d3_time.day, 2 ], [ d3_time.week, 1 ], [ d3_time.month, 1 ], [ d3_time.month, 3 ], [ d3_time.year, 1 ] ];
9163 var d3_time_scaleLocalFormat = d3_time_format.multi([ [ ".%L", function(d) {
9164 return d.getMilliseconds();
9165 } ], [ ":%S", function(d) {
9166 return d.getSeconds();
9167 } ], [ "%I:%M", function(d) {
9168 return d.getMinutes();
9169 } ], [ "%I %p", function(d) {
9170 return d.getHours();
9171 } ], [ "%a %d", function(d) {
9172 return d.getDay() && d.getDate() != 1;
9173 } ], [ "%b %d", function(d) {
9174 return d.getDate() != 1;
9175 } ], [ "%B", function(d) {
9176 return d.getMonth();
9177 } ], [ "%Y", d3_true ] ]);
9178 var d3_time_scaleMilliseconds = {
9179 range: function(start, stop, step) {
9180 return d3.range(Math.ceil(start / step) * step, +stop, step).map(d3_time_scaleDate);
9181 },
9182 floor: d3_identity,
9183 ceil: d3_identity
9184 };
9185 d3_time_scaleLocalMethods.year = d3_time.year;
9186 d3_time.scale = function() {
9187 return d3_time_scale(d3.scale.linear(), d3_time_scaleLocalMethods, d3_time_scaleLocalFormat);
9188 };
9189 var d3_time_scaleUtcMethods = d3_time_scaleLocalMethods.map(function(m) {
9190 return [ m[0].utc, m[1] ];
9191 });
9192 var d3_time_scaleUtcFormat = d3_time_formatUtc.multi([ [ ".%L", function(d) {
9193 return d.getUTCMilliseconds();
9194 } ], [ ":%S", function(d) {
9195 return d.getUTCSeconds();
9196 } ], [ "%I:%M", function(d) {
9197 return d.getUTCMinutes();
9198 } ], [ "%I %p", function(d) {
9199 return d.getUTCHours();
9200 } ], [ "%a %d", function(d) {
9201 return d.getUTCDay() && d.getUTCDate() != 1;
9202 } ], [ "%b %d", function(d) {
9203 return d.getUTCDate() != 1;
9204 } ], [ "%B", function(d) {
9205 return d.getUTCMonth();
9206 } ], [ "%Y", d3_true ] ]);
9207 d3_time_scaleUtcMethods.year = d3_time.year.utc;
9208 d3_time.scale.utc = function() {
9209 return d3_time_scale(d3.scale.linear(), d3_time_scaleUtcMethods, d3_time_scaleUtcFormat);
9210 };
9211 d3.text = d3_xhrType(function(request) {
9212 return request.responseText;
9213 });
9214 d3.json = function(url, callback) {
9215 return d3_xhr(url, "application/json", d3_json, callback);
9216 };
9217 function d3_json(request) {
9218 return JSON.parse(request.responseText);
9219 }
9220 d3.html = function(url, callback) {
9221 return d3_xhr(url, "text/html", d3_html, callback);
9222 };
9223 function d3_html(request) {
9224 var range = d3_document.createRange();
9225 range.selectNode(d3_document.body);
9226 return range.createContextualFragment(request.responseText);
9227 }
9228 d3.xml = d3_xhrType(function(request) {
9229 return request.responseXML;
9230 });
9231 if (typeof define === "function" && define.amd) define(d3); else if (typeof module === "object" && module.exports) module.exports = d3;
9232 this.d3 = d3;
9233 }();