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|
- /*!
- * Copyright (c) 2016, Baidu, Inc. All rights reserved.
- * mapv.(http://mapv.baidu.com)
- * github: https://github.com/huiyan-fe/mapv
- * license: BSD 3-clause "New" or "Revised"
- * version: 2.0.20
- */
- (function (global, factory) {
- typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
- typeof define === 'function' && define.amd ? define(['exports'], factory) :
- (factory((global.mapv = global.mapv || {})));
- }(this, (function (exports) { 'use strict';
- var version = "2.0.20";
- /**
- * @author kyle / http://nikai.us/
- */
- var clear = function (context) {
- context && context.clearRect && context.clearRect(0, 0, context.canvas.width, context.canvas.height);
- //context.canvas.width = context.canvas.width;
- //context.canvas.height = context.canvas.height;
- };
- /**
- * @author kyle / http://nikai.us/
- */
- var resolutionScale$1 = function (context) {
- var devicePixelRatio = window.devicePixelRatio || 1;
- context.canvas.width = context.canvas.width * devicePixelRatio;
- context.canvas.height = context.canvas.height * devicePixelRatio;
- context.canvas.style.width = context.canvas.width / devicePixelRatio + 'px';
- context.canvas.style.height = context.canvas.height / devicePixelRatio + 'px';
- context.scale(devicePixelRatio, devicePixelRatio);
- };
- function Event() {
- this._subscribers = {}; // event subscribers
- }
- /**
- * Subscribe to an event, add an event listener
- * @param {String} event Event name. Available events: 'put', 'update',
- * 'remove'
- * @param {function} callback Callback method. Called with three parameters:
- * {String} event
- * {Object | null} params
- * {String | Number} senderId
- */
- Event.prototype.on = function (event, callback) {
- var subscribers = this._subscribers[event];
- if (!subscribers) {
- subscribers = [];
- this._subscribers[event] = subscribers;
- }
- subscribers.push({
- callback: callback
- });
- };
- /**
- * Unsubscribe from an event, remove an event listener
- * @param {String} event
- * @param {function} callback
- */
- Event.prototype.off = function (event, callback) {
- var subscribers = this._subscribers[event];
- if (subscribers) {
- //this._subscribers[event] = subscribers.filter(listener => listener.callback != callback);
- for (var i = 0; i < subscribers.length; i++) {
- if (subscribers[i].callback == callback) {
- subscribers.splice(i, 1);
- i--;
- }
- }
- }
- };
- /**
- * Trigger an event
- * @param {String} event
- * @param {Object | null} params
- * @param {String} [senderId] Optional id of the sender.
- * @private
- */
- Event.prototype._trigger = function (event, params, senderId) {
- if (event == '*') {
- throw new Error('Cannot trigger event *');
- }
- var subscribers = [];
- if (event in this._subscribers) {
- subscribers = subscribers.concat(this._subscribers[event]);
- }
- if ('*' in this._subscribers) {
- subscribers = subscribers.concat(this._subscribers['*']);
- }
- for (var i = 0, len = subscribers.length; i < len; i++) {
- var subscriber = subscribers[i];
- if (subscriber.callback) {
- subscriber.callback(event, params, senderId || null);
- }
- }
- };
- /**
- * get the center by the city name
- * @author kyle / http://nikai.us/
- */
- var citycenter = { municipalities: [{ n: "北京", g: "116.395645,39.929986|12" }, { n: "上海", g: "121.487899,31.249162|12" }, { n: "天津", g: "117.210813,39.14393|12" }, { n: "重庆", g: "106.530635,29.544606|12" }], provinces: [{ n: "安徽", g: "117.216005,31.859252|8", cities: [{ n: "合肥", g: "117.282699,31.866942|12" }, { n: "安庆", g: "117.058739,30.537898|13" }, { n: "蚌埠", g: "117.35708,32.929499|13" }, { n: "亳州", g: "115.787928,33.871211|13" }, { n: "巢湖", g: "117.88049,31.608733|13" }, { n: "池州", g: "117.494477,30.660019|14" }, { n: "滁州", g: "118.32457,32.317351|13" }, { n: "阜阳", g: "115.820932,32.901211|13" }, { n: "淮北", g: "116.791447,33.960023|13" }, { n: "淮南", g: "117.018639,32.642812|13" }, { n: "黄山", g: "118.29357,29.734435|13" }, { n: "六安", g: "116.505253,31.755558|13" }, { n: "马鞍山", g: "118.515882,31.688528|13" }, { n: "宿州", g: "116.988692,33.636772|13" }, { n: "铜陵", g: "117.819429,30.94093|14" }, { n: "芜湖", g: "118.384108,31.36602|12" }, { n: "宣城", g: "118.752096,30.951642|13" }] }, { n: "福建", g: "117.984943,26.050118|8", cities: [{ n: "福州", g: "119.330221,26.047125|12" }, { n: "龙岩", g: "117.017997,25.078685|13" }, { n: "南平", g: "118.181883,26.643626|13" }, { n: "宁德", g: "119.542082,26.656527|14" }, { n: "莆田", g: "119.077731,25.44845|13" }, { n: "泉州", g: "118.600362,24.901652|12" }, { n: "三明", g: "117.642194,26.270835|14" }, { n: "厦门", g: "118.103886,24.489231|12" }, { n: "漳州", g: "117.676205,24.517065|12" }] }, { n: "甘肃", g: "102.457625,38.103267|6", cities: [{ n: "兰州", g: "103.823305,36.064226|12" }, { n: "白银", g: "104.171241,36.546682|13" }, { n: "定西", g: "104.626638,35.586056|13" }, { n: "甘南州", g: "102.917442,34.992211|14" }, { n: "嘉峪关", g: "98.281635,39.802397|13" }, { n: "金昌", g: "102.208126,38.516072|13" }, { n: "酒泉", g: "98.508415,39.741474|13" }, { n: "临夏州", g: "103.215249,35.598514|13" }, { n: "陇南", g: "104.934573,33.39448|14" }, { n: "平凉", g: "106.688911,35.55011|13" }, { n: "庆阳", g: "107.644227,35.726801|13" }, { n: "天水", g: "105.736932,34.584319|13" }, { n: "武威", g: "102.640147,37.933172|13" }, { n: "张掖", g: "100.459892,38.93932|13" }] }, { n: "广东", g: "113.394818,23.408004|8", cities: [{ n: "广州", g: "113.30765,23.120049|12" }, { n: "潮州", g: "116.630076,23.661812|13" }, { n: "东莞", g: "113.763434,23.043024|12" }, { n: "佛山", g: "113.134026,23.035095|13" }, { n: "河源", g: "114.713721,23.757251|12" }, { n: "惠州", g: "114.410658,23.11354|12" }, { n: "江门", g: "113.078125,22.575117|13" }, { n: "揭阳", g: "116.379501,23.547999|13" }, { n: "茂名", g: "110.931245,21.668226|13" }, { n: "梅州", g: "116.126403,24.304571|13" }, { n: "清远", g: "113.040773,23.698469|13" }, { n: "汕头", g: "116.72865,23.383908|13" }, { n: "汕尾", g: "115.372924,22.778731|14" }, { n: "韶关", g: "113.594461,24.80296|13" }, { n: "深圳", g: "114.025974,22.546054|12" }, { n: "阳江", g: "111.97701,21.871517|14" }, { n: "云浮", g: "112.050946,22.937976|13" }, { n: "湛江", g: "110.365067,21.257463|13" }, { n: "肇庆", g: "112.479653,23.078663|13" }, { n: "中山", g: "113.42206,22.545178|12" }, { n: "珠海", g: "113.562447,22.256915|13" }] }, { n: "广西", g: "108.924274,23.552255|7", cities: [{ n: "南宁", g: "108.297234,22.806493|12" }, { n: "百色", g: "106.631821,23.901512|13" }, { n: "北海", g: "109.122628,21.472718|13" }, { n: "崇左", g: "107.357322,22.415455|14" }, { n: "防城港", g: "108.351791,21.617398|15" }, { n: "桂林", g: "110.26092,25.262901|12" }, { n: "贵港", g: "109.613708,23.103373|13" }, { n: "河池", g: "108.069948,24.699521|14" }, { n: "贺州", g: "111.552594,24.411054|14" }, { n: "来宾", g: "109.231817,23.741166|14" }, { n: "柳州", g: "109.422402,24.329053|12" }, { n: "钦州", g: "108.638798,21.97335|13" }, { n: "梧州", g: "111.305472,23.485395|13" }, { n: "玉林", g: "110.151676,22.643974|14" }] }, { n: "贵州", g: "106.734996,26.902826|8", cities: [{ n: "贵阳", g: "106.709177,26.629907|12" }, { n: "安顺", g: "105.92827,26.228595|13" }, { n: "毕节地区", g: "105.300492,27.302612|14" }, { n: "六盘水", g: "104.852087,26.591866|13" }, { n: "铜仁地区", g: "109.196161,27.726271|14" }, { n: "遵义", g: "106.93126,27.699961|13" }, { n: "黔西南州", g: "104.900558,25.095148|11" }, { n: "黔东南州", g: "107.985353,26.583992|11" }, { n: "黔南州", g: "107.523205,26.264536|11" }] }, { n: "海南", g: "109.733755,19.180501|9", cities: [{ n: "海口", g: "110.330802,20.022071|13" }, { n: "白沙", g: "109.358586,19.216056|12" }, { n: "保亭", g: "109.656113,18.597592|12" }, { n: "昌江", g: "109.0113,19.222483|12" }, { n: "儋州", g: "109.413973,19.571153|13" }, { n: "澄迈", g: "109.996736,19.693135|13" }, { n: "东方", g: "108.85101,18.998161|13" }, { n: "定安", g: "110.32009,19.490991|13" }, { n: "琼海", g: "110.414359,19.21483|13" }, { n: "琼中", g: "109.861849,19.039771|12" }, { n: "乐东", g: "109.062698,18.658614|12" }, { n: "临高", g: "109.724101,19.805922|13" }, { n: "陵水", g: "109.948661,18.575985|12" }, { n: "三亚", g: "109.522771,18.257776|12" }, { n: "屯昌", g: "110.063364,19.347749|13" }, { n: "万宁", g: "110.292505,18.839886|13" }, { n: "文昌", g: "110.780909,19.750947|13" }, { n: "五指山", g: "109.51775,18.831306|13" }] }, { n: "河北", g: "115.661434,38.61384|7", cities: [{ n: "石家庄", g: "114.522082,38.048958|12" }, { n: "保定", g: "115.49481,38.886565|13" }, { n: "沧州", g: "116.863806,38.297615|13" }, { n: "承德", g: "117.933822,40.992521|14" }, { n: "邯郸", g: "114.482694,36.609308|13" }, { n: "衡水", g: "115.686229,37.746929|13" }, { n: "廊坊", g: "116.703602,39.518611|13" }, { n: "秦皇岛", g: "119.604368,39.945462|12" }, { n: "唐山", g: "118.183451,39.650531|13" }, { n: "邢台", g: "114.520487,37.069531|13" }, { n: "张家口", g: "114.893782,40.811188|13" }] }, { n: "河南", g: "113.486804,34.157184|7", cities: [{ n: "郑州", g: "113.649644,34.75661|12" }, { n: "安阳", g: "114.351807,36.110267|12" }, { n: "鹤壁", g: "114.29777,35.755426|13" }, { n: "焦作", g: "113.211836,35.234608|13" }, { n: "开封", g: "114.351642,34.801854|13" }, { n: "洛阳", g: "112.447525,34.657368|12" }, { n: "漯河", g: "114.046061,33.576279|13" }, { n: "南阳", g: "112.542842,33.01142|13" }, { n: "平顶山", g: "113.300849,33.745301|13" }, { n: "濮阳", g: "115.026627,35.753298|12" }, { n: "三门峡", g: "111.181262,34.78332|13" }, { n: "商丘", g: "115.641886,34.438589|13" }, { n: "新乡", g: "113.91269,35.307258|13" }, { n: "信阳", g: "114.085491,32.128582|13" }, { n: "许昌", g: "113.835312,34.02674|13" }, { n: "周口", g: "114.654102,33.623741|13" }, { n: "驻马店", g: "114.049154,32.983158|13" }] }, { n: "黑龙江", g: "128.047414,47.356592|6", cities: [{ n: "哈尔滨", g: "126.657717,45.773225|12" }, { n: "大庆", g: "125.02184,46.596709|12" }, { n: "大兴安岭地区", g: "124.196104,51.991789|10" }, { n: "鹤岗", g: "130.292472,47.338666|13" }, { n: "黑河", g: "127.50083,50.25069|14" }, { n: "鸡西", g: "130.941767,45.32154|13" }, { n: "佳木斯", g: "130.284735,46.81378|12" }, { n: "牡丹江", g: "129.608035,44.588521|13" }, { n: "七台河", g: "131.019048,45.775005|14" }, { n: "齐齐哈尔", g: "123.987289,47.3477|13" }, { n: "双鸭山", g: "131.171402,46.655102|13" }, { n: "绥化", g: "126.989095,46.646064|13" }, { n: "伊春", g: "128.910766,47.734685|14" }] }, { n: "湖北", g: "112.410562,31.209316|8", cities: [{ n: "武汉", g: "114.3162,30.581084|12" }, { n: "鄂州", g: "114.895594,30.384439|14" }, { n: "恩施", g: "109.517433,30.308978|14" }, { n: "黄冈", g: "114.906618,30.446109|14" }, { n: "黄石", g: "115.050683,30.216127|13" }, { n: "荆门", g: "112.21733,31.042611|13" }, { n: "荆州", g: "112.241866,30.332591|12" }, { n: "潜江", g: "112.768768,30.343116|13" }, { n: "神农架林区", g: "110.487231,31.595768|13" }, { n: "十堰", g: "110.801229,32.636994|13" }, { n: "随州", g: "113.379358,31.717858|13" }, { n: "天门", g: "113.12623,30.649047|13" }, { n: "仙桃", g: "113.387448,30.293966|13" }, { n: "咸宁", g: "114.300061,29.880657|13" }, { n: "襄阳", g: "112.176326,32.094934|12" }, { n: "孝感", g: "113.935734,30.927955|13" }, { n: "宜昌", g: "111.310981,30.732758|13" }] }, { n: "湖南", g: "111.720664,27.695864|7", cities: [{ n: "长沙", g: "112.979353,28.213478|12" }, { n: "常德", g: "111.653718,29.012149|12" }, { n: "郴州", g: "113.037704,25.782264|13" }, { n: "衡阳", g: "112.583819,26.898164|13" }, { n: "怀化", g: "109.986959,27.557483|13" }, { n: "娄底", g: "111.996396,27.741073|13" }, { n: "邵阳", g: "111.461525,27.236811|13" }, { n: "湘潭", g: "112.935556,27.835095|13" }, { n: "湘西州", g: "109.745746,28.317951|14" }, { n: "益阳", g: "112.366547,28.588088|13" }, { n: "永州", g: "111.614648,26.435972|13" }, { n: "岳阳", g: "113.146196,29.378007|13" }, { n: "张家界", g: "110.48162,29.124889|13" }, { n: "株洲", g: "113.131695,27.827433|13" }] }, { n: "江苏", g: "119.368489,33.013797|8", cities: [{ n: "南京", g: "118.778074,32.057236|12" }, { n: "常州", g: "119.981861,31.771397|12" }, { n: "淮安", g: "119.030186,33.606513|12" }, { n: "连云港", g: "119.173872,34.601549|12" }, { n: "南通", g: "120.873801,32.014665|12" }, { n: "苏州", g: "120.619907,31.317987|12" }, { n: "宿迁", g: "118.296893,33.95205|13" }, { n: "泰州", g: "119.919606,32.476053|13" }, { n: "无锡", g: "120.305456,31.570037|12" }, { n: "徐州", g: "117.188107,34.271553|12" }, { n: "盐城", g: "120.148872,33.379862|12" }, { n: "扬州", g: "119.427778,32.408505|13" }, { n: "镇江", g: "119.455835,32.204409|13" }] }, { n: "江西", g: "115.676082,27.757258|7", cities: [{ n: "南昌", g: "115.893528,28.689578|12" }, { n: "抚州", g: "116.360919,27.954545|13" }, { n: "赣州", g: "114.935909,25.845296|13" }, { n: "吉安", g: "114.992039,27.113848|13" }, { n: "景德镇", g: "117.186523,29.303563|12" }, { n: "九江", g: "115.999848,29.71964|13" }, { n: "萍乡", g: "113.859917,27.639544|13" }, { n: "上饶", g: "117.955464,28.457623|13" }, { n: "新余", g: "114.947117,27.822322|13" }, { n: "宜春", g: "114.400039,27.81113|13" }, { n: "鹰潭", g: "117.03545,28.24131|13" }] }, { n: "吉林", g: "126.262876,43.678846|7", cities: [{ n: "长春", g: "125.313642,43.898338|12" }, { n: "白城", g: "122.840777,45.621086|13" }, { n: "白山", g: "126.435798,41.945859|13" }, { n: "吉林", g: "126.564544,43.871988|12" }, { n: "辽源", g: "125.133686,42.923303|13" }, { n: "四平", g: "124.391382,43.175525|12" }, { n: "松原", g: "124.832995,45.136049|13" }, { n: "通化", g: "125.94265,41.736397|13" }, { n: "延边", g: "129.485902,42.896414|13" }] }, { n: "辽宁", g: "122.753592,41.6216|8", cities: [{ n: "沈阳", g: "123.432791,41.808645|12" }, { n: "鞍山", g: "123.007763,41.118744|13" }, { n: "本溪", g: "123.778062,41.325838|12" }, { n: "朝阳", g: "120.446163,41.571828|13" }, { n: "大连", g: "121.593478,38.94871|12" }, { n: "丹东", g: "124.338543,40.129023|12" }, { n: "抚顺", g: "123.92982,41.877304|12" }, { n: "阜新", g: "121.660822,42.01925|14" }, { n: "葫芦岛", g: "120.860758,40.74303|13" }, { n: "锦州", g: "121.147749,41.130879|13" }, { n: "辽阳", g: "123.172451,41.273339|14" }, { n: "盘锦", g: "122.073228,41.141248|13" }, { n: "铁岭", g: "123.85485,42.299757|13" }, { n: "营口", g: "122.233391,40.668651|13" }] }, { n: "内蒙古", g: "114.415868,43.468238|5", cities: [{ n: "呼和浩特", g: "111.660351,40.828319|12" }, { n: "阿拉善盟", g: "105.695683,38.843075|14" }, { n: "包头", g: "109.846239,40.647119|12" }, { n: "巴彦淖尔", g: "107.423807,40.76918|12" }, { n: "赤峰", g: "118.930761,42.297112|12" }, { n: "鄂尔多斯", g: "109.993706,39.81649|12" }, { n: "呼伦贝尔", g: "119.760822,49.201636|12" }, { n: "通辽", g: "122.260363,43.633756|12" }, { n: "乌海", g: "106.831999,39.683177|13" }, { n: "乌兰察布", g: "113.112846,41.022363|12" }, { n: "锡林郭勒盟", g: "116.02734,43.939705|11" }, { n: "兴安盟", g: "122.048167,46.083757|11" }] }, { n: "宁夏", g: "106.155481,37.321323|8", cities: [{ n: "银川", g: "106.206479,38.502621|12" }, { n: "固原", g: "106.285268,36.021523|13" }, { n: "石嘴山", g: "106.379337,39.020223|13" }, { n: "吴忠", g: "106.208254,37.993561|14" }, { n: "中卫", g: "105.196754,37.521124|14" }] }, { n: "青海", g: "96.202544,35.499761|7", cities: [{ n: "西宁", g: "101.767921,36.640739|12" }, { n: "果洛州", g: "100.223723,34.480485|11" }, { n: "海东地区", g: "102.085207,36.51761|11" }, { n: "海北州", g: "100.879802,36.960654|11" }, { n: "海南州", g: "100.624066,36.284364|11" }, { n: "海西州", g: "97.342625,37.373799|11" }, { n: "黄南州", g: "102.0076,35.522852|11" }, { n: "玉树州", g: "97.013316,33.00624|14" }] }, { n: "山东", g: "118.527663,36.09929|8", cities: [{ n: "济南", g: "117.024967,36.682785|12" }, { n: "滨州", g: "117.968292,37.405314|12" }, { n: "东营", g: "118.583926,37.487121|12" }, { n: "德州", g: "116.328161,37.460826|12" }, { n: "菏泽", g: "115.46336,35.26244|13" }, { n: "济宁", g: "116.600798,35.402122|13" }, { n: "莱芜", g: "117.684667,36.233654|13" }, { n: "聊城", g: "115.986869,36.455829|12" }, { n: "临沂", g: "118.340768,35.072409|12" }, { n: "青岛", g: "120.384428,36.105215|12" }, { n: "日照", g: "119.50718,35.420225|12" }, { n: "泰安", g: "117.089415,36.188078|13" }, { n: "威海", g: "122.093958,37.528787|13" }, { n: "潍坊", g: "119.142634,36.716115|12" }, { n: "烟台", g: "121.309555,37.536562|12" }, { n: "枣庄", g: "117.279305,34.807883|13" }, { n: "淄博", g: "118.059134,36.804685|12" }] }, { n: "山西", g: "112.515496,37.866566|7", cities: [{ n: "太原", g: "112.550864,37.890277|12" }, { n: "长治", g: "113.120292,36.201664|12" }, { n: "大同", g: "113.290509,40.113744|12" }, { n: "晋城", g: "112.867333,35.499834|13" }, { n: "晋中", g: "112.738514,37.693362|13" }, { n: "临汾", g: "111.538788,36.099745|13" }, { n: "吕梁", g: "111.143157,37.527316|14" }, { n: "朔州", g: "112.479928,39.337672|13" }, { n: "忻州", g: "112.727939,38.461031|12" }, { n: "阳泉", g: "113.569238,37.869529|13" }, { n: "运城", g: "111.006854,35.038859|13" }] }, { n: "陕西", g: "109.503789,35.860026|7", cities: [{ n: "西安", g: "108.953098,34.2778|12" }, { n: "安康", g: "109.038045,32.70437|13" }, { n: "宝鸡", g: "107.170645,34.364081|12" }, { n: "汉中", g: "107.045478,33.081569|13" }, { n: "商洛", g: "109.934208,33.873907|13" }, { n: "铜川", g: "108.968067,34.908368|13" }, { n: "渭南", g: "109.483933,34.502358|13" }, { n: "咸阳", g: "108.707509,34.345373|13" }, { n: "延安", g: "109.50051,36.60332|13" }, { n: "榆林", g: "109.745926,38.279439|12" }] }, { n: "四川", g: "102.89916,30.367481|7", cities: [{ n: "成都", g: "104.067923,30.679943|12" }, { n: "阿坝州", g: "102.228565,31.905763|15" }, { n: "巴中", g: "106.757916,31.869189|14" }, { n: "达州", g: "107.494973,31.214199|14" }, { n: "德阳", g: "104.402398,31.13114|13" }, { n: "甘孜州", g: "101.969232,30.055144|15" }, { n: "广安", g: "106.63572,30.463984|13" }, { n: "广元", g: "105.819687,32.44104|13" }, { n: "乐山", g: "103.760824,29.600958|13" }, { n: "凉山州", g: "102.259591,27.892393|14" }, { n: "泸州", g: "105.44397,28.89593|14" }, { n: "南充", g: "106.105554,30.800965|13" }, { n: "眉山", g: "103.84143,30.061115|13" }, { n: "绵阳", g: "104.705519,31.504701|12" }, { n: "内江", g: "105.073056,29.599462|13" }, { n: "攀枝花", g: "101.722423,26.587571|14" }, { n: "遂宁", g: "105.564888,30.557491|12" }, { n: "雅安", g: "103.009356,29.999716|13" }, { n: "宜宾", g: "104.633019,28.769675|13" }, { n: "资阳", g: "104.63593,30.132191|13" }, { n: "自贡", g: "104.776071,29.359157|13" }] }, { n: "西藏", g: "89.137982,31.367315|6", cities: [{ n: "拉萨", g: "91.111891,29.662557|13" }, { n: "阿里地区", g: "81.107669,30.404557|11" }, { n: "昌都地区", g: "97.185582,31.140576|15" }, { n: "林芝地区", g: "94.349985,29.666941|11" }, { n: "那曲地区", g: "92.067018,31.48068|14" }, { n: "日喀则地区", g: "88.891486,29.269023|14" }, { n: "山南地区", g: "91.750644,29.229027|11" }] }, { n: "新疆", g: "85.614899,42.127001|6", cities: [{ n: "乌鲁木齐", g: "87.564988,43.84038|12" }, { n: "阿拉尔", g: "81.291737,40.61568|13" }, { n: "阿克苏地区", g: "80.269846,41.171731|12" }, { n: "阿勒泰地区", g: "88.137915,47.839744|13" }, { n: "巴音郭楞", g: "86.121688,41.771362|12" }, { n: "博尔塔拉州", g: "82.052436,44.913651|11" }, { n: "昌吉州", g: "87.296038,44.007058|13" }, { n: "哈密地区", g: "93.528355,42.858596|13" }, { n: "和田地区", g: "79.930239,37.116774|13" }, { n: "喀什地区", g: "75.992973,39.470627|12" }, { n: "克拉玛依", g: "84.88118,45.594331|13" }, { n: "克孜勒苏州", g: "76.137564,39.750346|11" }, { n: "石河子", g: "86.041865,44.308259|13" }, { n: "塔城地区", g: "82.974881,46.758684|12" }, { n: "图木舒克", g: "79.198155,39.889223|13" }, { n: "吐鲁番地区", g: "89.181595,42.96047|13" }, { n: "五家渠", g: "87.565449,44.368899|13" }, { n: "伊犁州", g: "81.297854,43.922248|11" }] }, { n: "云南", g: "101.592952,24.864213|7", cities: [{ n: "昆明", g: "102.714601,25.049153|12" }, { n: "保山", g: "99.177996,25.120489|13" }, { n: "楚雄州", g: "101.529382,25.066356|13" }, { n: "大理州", g: "100.223675,25.5969|14" }, { n: "德宏州", g: "98.589434,24.44124|14" }, { n: "迪庆州", g: "99.713682,27.831029|14" }, { n: "红河州", g: "103.384065,23.367718|11" }, { n: "丽江", g: "100.229628,26.875351|13" }, { n: "临沧", g: "100.092613,23.887806|14" }, { n: "怒江州", g: "98.859932,25.860677|14" }, { n: "普洱", g: "100.980058,22.788778|14" }, { n: "曲靖", g: "103.782539,25.520758|12" }, { n: "昭通", g: "103.725021,27.340633|13" }, { n: "文山", g: "104.089112,23.401781|14" }, { n: "西双版纳", g: "100.803038,22.009433|13" }, { n: "玉溪", g: "102.545068,24.370447|13" }] }, { n: "浙江", g: "119.957202,29.159494|8", cities: [{ n: "杭州", g: "120.219375,30.259244|12" }, { n: "湖州", g: "120.137243,30.877925|12" }, { n: "嘉兴", g: "120.760428,30.773992|13" }, { n: "金华", g: "119.652576,29.102899|12" }, { n: "丽水", g: "119.929576,28.4563|13" }, { n: "宁波", g: "121.579006,29.885259|12" }, { n: "衢州", g: "118.875842,28.95691|12" }, { n: "绍兴", g: "120.592467,30.002365|13" }, { n: "台州", g: "121.440613,28.668283|13" }, { n: "温州", g: "120.690635,28.002838|12" }, { n: "舟山", g: "122.169872,30.03601|13" }] }], other: [{ n: "香港", g: "114.186124,22.293586|11" }, { n: "澳门", g: "113.557519,22.204118|13" }, { n: "台湾", g: "120.961454,23.80406|8" }] };
- function getCenter(g) {
- var item = g.split("|");
- item[0] = item[0].split(",");
- return {
- lng: parseFloat(item[0][0]),
- lat: parseFloat(item[0][1])
- };
- }
- var cityCenter = {
- getProvinceNameByCityName: function getProvinceNameByCityName(name) {
- var provinces = citycenter.provinces;
- for (var i = 0; i < provinces.length; i++) {
- var provinceName = provinces[i].n;
- var cities = provinces[i].cities;
- for (var j = 0; j < cities.length; j++) {
- if (cities[j].n == name) {
- return provinceName;
- }
- }
- }
- return null;
- },
- getCenterByCityName: function getCenterByCityName(name) {
- name = name.replace('市', '');
- for (var i = 0; i < citycenter.municipalities.length; i++) {
- if (citycenter.municipalities[i].n == name) {
- return getCenter(citycenter.municipalities[i].g);
- }
- }
- for (var i = 0; i < citycenter.other.length; i++) {
- if (citycenter.other[i].n == name) {
- return getCenter(citycenter.other[i].g);
- }
- }
- var provinces = citycenter.provinces;
- for (var i = 0; i < provinces.length; i++) {
- if (provinces[i].n == name) {
- return getCenter(provinces[i].g);
- }
- var cities = provinces[i].cities;
- for (var j = 0; j < cities.length; j++) {
- if (cities[j].n == name) {
- return getCenter(cities[j].g);
- }
- }
- }
- return null;
- }
- };
- var classCallCheck = function (instance, Constructor) {
- if (!(instance instanceof Constructor)) {
- throw new TypeError("Cannot call a class as a function");
- }
- };
- var createClass = function () {
- function defineProperties(target, props) {
- for (var i = 0; i < props.length; i++) {
- var descriptor = props[i];
- descriptor.enumerable = descriptor.enumerable || false;
- descriptor.configurable = true;
- if ("value" in descriptor) descriptor.writable = true;
- Object.defineProperty(target, descriptor.key, descriptor);
- }
- }
- return function (Constructor, protoProps, staticProps) {
- if (protoProps) defineProperties(Constructor.prototype, protoProps);
- if (staticProps) defineProperties(Constructor, staticProps);
- return Constructor;
- };
- }();
- var get = function get(object, property, receiver) {
- if (object === null) object = Function.prototype;
- var desc = Object.getOwnPropertyDescriptor(object, property);
- if (desc === undefined) {
- var parent = Object.getPrototypeOf(object);
- if (parent === null) {
- return undefined;
- } else {
- return get(parent, property, receiver);
- }
- } else if ("value" in desc) {
- return desc.value;
- } else {
- var getter = desc.get;
- if (getter === undefined) {
- return undefined;
- }
- return getter.call(receiver);
- }
- };
- var inherits = function (subClass, superClass) {
- if (typeof superClass !== "function" && superClass !== null) {
- throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
- }
- subClass.prototype = Object.create(superClass && superClass.prototype, {
- constructor: {
- value: subClass,
- enumerable: false,
- writable: true,
- configurable: true
- }
- });
- if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
- };
- var possibleConstructorReturn = function (self, call) {
- if (!self) {
- throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
- }
- return call && (typeof call === "object" || typeof call === "function") ? call : self;
- };
- /**
- * @author kyle / http://nikai.us/
- */
- function DataSet(data, options) {
- Event.bind(this)();
- this._options = options || {};
- this._data = []; // map with data indexed by id
- // add initial data when provided
- if (data) {
- this.add(data);
- }
- }
- DataSet.prototype = Event.prototype;
- /**
- * Add data.
- */
- DataSet.prototype.add = function (data, senderId) {
- if (Array.isArray(data)) {
- // Array
- for (var i = 0, len = data.length; i < len; i++) {
- if (data[i].time && data[i].time.length == 14 && data[i].time.substr(0, 2) == '20') {
- var time = data[i].time;
- data[i].time = new Date(time.substr(0, 4) + '-' + time.substr(4, 2) + '-' + time.substr(6, 2) + ' ' + time.substr(8, 2) + ':' + time.substr(10, 2) + ':' + time.substr(12, 2)).getTime();
- }
- this._data.push(data[i]);
- }
- } else if (data instanceof Object) {
- // Single item
- this._data.push(data);
- } else {
- throw new Error('Unknown dataType');
- }
- this._dataCache = JSON.parse(JSON.stringify(this._data));
- };
- DataSet.prototype.reset = function () {
- this._data = JSON.parse(JSON.stringify(this._dataCache));
- };
- /**
- * get data.
- */
- DataSet.prototype.get = function (args) {
- args = args || {};
- //console.time('copy data time')
- var start = new Date();
- // TODO: 不修改原始数据,在数据上挂载新的名称,每次修改数据直接修改新名称下的数据,可以省去deepCopy
- // var data = deepCopy(this._data);
- var data = this._data;
- var start = new Date();
- if (args.filter) {
- var newData = [];
- for (var i = 0; i < data.length; i++) {
- if (args.filter(data[i])) {
- newData.push(data[i]);
- }
- }
- data = newData;
- }
- if (args.transferCoordinate) {
- data = this.transferCoordinate(data, args.transferCoordinate, args.fromColumn, args.toColumn);
- }
- // console.timeEnd('transferCoordinate time')
- return data;
- };
- /**
- * set data.
- */
- DataSet.prototype.set = function (data) {
- this._set(data);
- this._trigger('change');
- };
- /**
- * set data.
- */
- DataSet.prototype._set = function (data) {
- this.clear();
- this.add(data);
- };
- /**
- * clear data.
- */
- DataSet.prototype.clear = function (args) {
- this._data = []; // map with data indexed by id
- };
- /**
- * remove data.
- */
- DataSet.prototype.remove = function (args) {};
- /**
- * update data.
- */
- DataSet.prototype.update = function (cbk, condition) {
- var data = this._data;
- var item = null;
- for (var i = 0; i < data.length; i++) {
- if (condition) {
- var flag = true;
- for (var key in condition) {
- if (data[i][key] != condition[key]) {
- flag = false;
- }
- }
- if (flag) {
- cbk && cbk(data[i]);
- }
- } else {
- cbk && cbk(data[i]);
- }
- }
- this._dataCache = JSON.parse(JSON.stringify(this._data));
- this._trigger('change');
- };
- /**
- * transfer coordinate.
- */
- DataSet.prototype.transferCoordinate = function (data, transferFn, fromColumn, toColumnName) {
- toColumnName = toColumnName || '_coordinates';
- fromColumn = fromColumn || 'coordinates';
- for (var i = 0; i < data.length; i++) {
- var geometry = data[i].geometry;
- var coordinates = geometry[fromColumn];
- switch (geometry.type) {
- case 'Point':
- geometry[toColumnName] = transferFn(coordinates);
- break;
- case 'LineString':
- var newCoordinates = [];
- for (var j = 0; j < coordinates.length; j++) {
- newCoordinates.push(transferFn(coordinates[j]));
- }
- geometry[toColumnName] = newCoordinates;
- break;
- case 'Polygon':
- var newCoordinates = getPolygon(coordinates);
- geometry[toColumnName] = newCoordinates;
- break;
- case 'MultiPolygon':
- var newCoordinates = [];
- for (var c = 0; c < coordinates.length; c++) {
- var polygon = coordinates[c];
- var polygon = getPolygon(polygon);
- newCoordinates.push(polygon);
- }
- geometry[toColumnName] = newCoordinates;
- break;
- }
- }
- function getPolygon(coordinates) {
- var newCoordinates = [];
- for (var c = 0; c < coordinates.length; c++) {
- var coordinate = coordinates[c];
- var newcoordinate = [];
- for (var j = 0; j < coordinate.length; j++) {
- newcoordinate.push(transferFn(coordinate[j]));
- }
- newCoordinates.push(newcoordinate);
- }
- return newCoordinates;
- }
- return data;
- };
- DataSet.prototype.initGeometry = function (transferFn) {
- if (transferFn) {
- this._data.forEach(function (item) {
- item.geometry = transferFn(item);
- });
- } else {
- this._data.forEach(function (item) {
- if (!item.geometry) {
- if (item.lng && item.lat) {
- item.geometry = {
- type: 'Point',
- coordinates: [item.lng, item.lat]
- };
- } else if (item.city) {
- var center = cityCenter.getCenterByCityName(item.city);
- if (center) {
- item.geometry = {
- type: 'Point',
- coordinates: [center.lng, center.lat]
- };
- }
- }
- }
- });
- }
- };
- /**
- * 获取当前列的最大值
- */
- DataSet.prototype.getMax = function (columnName) {
- var data = this._data;
- if (!data || data.length <= 0) {
- return;
- }
- var max = parseFloat(data[0][columnName]);
- for (var i = 1; i < data.length; i++) {
- var value = parseFloat(data[i][columnName]);
- if (value > max) {
- max = value;
- }
- }
- return max;
- };
- /**
- * 获取当前列的总和
- */
- DataSet.prototype.getSum = function (columnName) {
- var data = this._data;
- if (!data || data.length <= 0) {
- return;
- }
- var sum = 0;
- for (var i = 0; i < data.length; i++) {
- if (data[i][columnName]) {
- sum += parseFloat(data[i][columnName]);
- }
- }
- return sum;
- };
- /**
- * 获取当前列的最小值
- */
- DataSet.prototype.getMin = function (columnName) {
- var data = this._data;
- if (!data || data.length <= 0) {
- return;
- }
- var min = parseFloat(data[0][columnName]);
- for (var i = 1; i < data.length; i++) {
- var value = parseFloat(data[i][columnName]);
- if (value < min) {
- min = value;
- }
- }
- return min;
- };
- /**
- * 获取去重的数据
- */
- DataSet.prototype.getUnique = function (columnName) {
- var data = this._data;
- if (!data || data.length <= 0) {
- return;
- }
- var maps = {};
- for (var i = 1; i < data.length; i++) {
- maps[data[i][columnName]] = true;
- }
- var data = [];
- for (var key in maps) {
- data.push(key);
- }
- return data;
- };
- function hex_corner(center, size, i) {
- var angle_deg = 60 * i + 30;
- var angle_rad = Math.PI / 180 * angle_deg;
- return [center.x + size * Math.cos(angle_rad), center.y + size * Math.sin(angle_rad)];
- }
- function draw(context, x, y, size) {
- for (var j = 0; j < 6; j++) {
- var result = hex_corner({
- x: x,
- y: y
- }, size, j);
- context.lineTo(result[0], result[1]);
- }
- }
- /**
- * @author kyle / http://nikai.us/
- */
- var pathSimple = {
- drawDataSet: function drawDataSet(context, dataSet, options) {
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- for (var i = 0, len = data.length; i < len; i++) {
- var item = data[i];
- this.draw(context, item, options);
- }
- },
- draw: function draw$$1(context, data, options) {
- var type = data.geometry.type;
- var coordinates = data.geometry._coordinates || data.geometry.coordinates;
- var symbol = options.symbol || 'circle';
- switch (type) {
- case 'Point':
- var size = data._size || data.size || options._size || options.size || 5;
- if (symbol === 'circle') {
- if (options.bigData === 'Point') {
- context.moveTo(coordinates[0], coordinates[1]);
- }
- context.arc(coordinates[0], coordinates[1], size, 0, Math.PI * 2);
- } else if (symbol === 'rect') {
- context.rect(coordinates[0] - size / 2, coordinates[1] - size / 2, size, size);
- } else if (symbol === 'honeycomb') {
- draw(context, coordinates[0], coordinates[1], size);
- }
- break;
- case 'LineString':
- for (var j = 0; j < coordinates.length; j++) {
- var x = coordinates[j][0];
- var y = coordinates[j][1];
- if (j == 0) {
- context.moveTo(x, y);
- } else {
- context.lineTo(x, y);
- }
- }
- break;
- case 'Polygon':
- this.drawPolygon(context, coordinates);
- break;
- case 'MultiPolygon':
- for (var i = 0; i < coordinates.length; i++) {
- var polygon = coordinates[i];
- this.drawPolygon(context, polygon);
- }
- context.closePath();
- break;
- default:
- console.log('type' + type + 'is not support now!');
- break;
- }
- },
- drawPolygon: function drawPolygon(context, coordinates) {
- for (var i = 0; i < coordinates.length; i++) {
- var coordinate = coordinates[i];
- context.moveTo(coordinate[0][0], coordinate[0][1]);
- for (var j = 1; j < coordinate.length; j++) {
- context.lineTo(coordinate[j][0], coordinate[j][1]);
- }
- context.lineTo(coordinate[0][0], coordinate[0][1]);
- }
- }
- };
- /**
- * @author kyle / http://nikai.us/
- */
- var drawSimple = {
- draw: function draw(context, dataSet, options) {
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- // console.log('xxxx',options)
- context.save();
- for (var key in options) {
- context[key] = options[key];
- }
- // console.log(data);
- if (options.bigData) {
- context.save();
- context.beginPath();
- for (var i = 0, len = data.length; i < len; i++) {
- var item = data[i];
- pathSimple.draw(context, item, options);
- }
- var type = options.bigData;
- if (type == 'Point' || type == 'Polygon' || type == 'MultiPolygon') {
- context.fill();
- if ((item.strokeStyle || options.strokeStyle) && options.lineWidth) {
- context.stroke();
- }
- } else if (type == 'LineString') {
- context.stroke();
- }
- context.restore();
- } else {
- for (var i = 0, len = data.length; i < len; i++) {
- var item = data[i];
- context.save();
- if (item.fillStyle || item._fillStyle) {
- context.fillStyle = item.fillStyle || item._fillStyle;
- }
- if (item.strokeStyle || item._strokeStyle) {
- context.strokeStyle = item.strokeStyle || item._strokeStyle;
- }
- var type = item.geometry.type;
- context.beginPath();
- pathSimple.draw(context, item, options);
- if (type == 'Point' || type == 'Polygon' || type == 'MultiPolygon') {
- context.fill();
- if ((item.strokeStyle || options.strokeStyle) && options.lineWidth) {
- context.stroke();
- }
- } else if (type == 'LineString') {
- if (item.lineWidth || item._lineWidth) {
- context.lineWidth = item.lineWidth || item._lineWidth;
- }
- context.stroke();
- }
- context.restore();
- }
- }
- context.restore();
- }
- };
- function Canvas(width, height) {
- var canvas;
- if (typeof document === 'undefined') {
- // var Canvas = require('canvas');
- // canvas = new Canvas(width, height);
- } else {
- var canvas = document.createElement('canvas');
- if (width) {
- canvas.width = width;
- }
- if (height) {
- canvas.height = height;
- }
- }
- return canvas;
- }
- /**
- * @author kyle / http://nikai.us/
- */
- function Intensity(options) {
- options = options || {};
- this.gradient = options.gradient || {
- 0.25: "rgba(0, 0, 255, 1)",
- 0.55: "rgba(0, 255, 0, 1)",
- 0.85: "rgba(255, 255, 0, 1)",
- 1.0: "rgba(255, 0, 0, 1)"
- };
- this.maxSize = options.maxSize || 35;
- this.minSize = options.minSize || 0;
- this.max = options.max || 100;
- this.min = options.min || 0;
- this.initPalette();
- }
- Intensity.prototype.setMax = function (value) {
- this.max = value || 100;
- };
- Intensity.prototype.setMin = function (value) {
- this.min = value || 0;
- };
- Intensity.prototype.setMaxSize = function (maxSize) {
- this.maxSize = maxSize || 35;
- };
- Intensity.prototype.setMinSize = function (minSize) {
- this.minSize = minSize || 0;
- };
- Intensity.prototype.initPalette = function () {
- var gradient = this.gradient;
- var canvas = new Canvas(256, 1);
- var paletteCtx = this.paletteCtx = canvas.getContext('2d');
- var lineGradient = paletteCtx.createLinearGradient(0, 0, 256, 1);
- for (var key in gradient) {
- lineGradient.addColorStop(parseFloat(key), gradient[key]);
- }
- paletteCtx.fillStyle = lineGradient;
- paletteCtx.fillRect(0, 0, 256, 1);
- };
- Intensity.prototype.getColor = function (value) {
- var imageData = this.getImageData(value);
- return "rgba(" + imageData[0] + ", " + imageData[1] + ", " + imageData[2] + ", " + imageData[3] / 256 + ")";
- };
- Intensity.prototype.getImageData = function (value) {
- var imageData = this.paletteCtx.getImageData(0, 0, 256, 1).data;
- if (value === undefined) {
- return imageData;
- }
- var max = this.max;
- var min = this.min;
- if (value > max) {
- value = max;
- }
- if (value < min) {
- value = min;
- }
- var index = Math.floor((value - min) / (max - min) * (256 - 1)) * 4;
- return [imageData[index], imageData[index + 1], imageData[index + 2], imageData[index + 3]];
- };
- /**
- * @param Number value
- * @param Number max of value
- * @param Number max of size
- * @param Object other options
- */
- Intensity.prototype.getSize = function (value) {
- var size = 0;
- var max = this.max;
- var min = this.min;
- var maxSize = this.maxSize;
- var minSize = this.minSize;
- if (value > max) {
- value = max;
- }
- if (value < min) {
- value = min;
- }
- size = minSize + (value - min) / (max - min) * (maxSize - minSize);
- return size;
- };
- Intensity.prototype.getLegend = function (options) {
- var gradient = this.gradient;
- var width = options.width || 20;
- var height = options.height || 180;
- var canvas = new Canvas(width, height);
- var paletteCtx = canvas.getContext('2d');
- var lineGradient = paletteCtx.createLinearGradient(0, height, 0, 0);
- for (var key in gradient) {
- lineGradient.addColorStop(parseFloat(key), gradient[key]);
- }
- paletteCtx.fillStyle = lineGradient;
- paletteCtx.fillRect(0, 0, width, height);
- return canvas;
- };
- var global$1 = typeof window === 'undefined' ? {} : window;
- var devicePixelRatio = global$1.devicePixelRatio || 1;
- /**
- * @author kyle / http://nikai.us/
- */
- function createCircle(size) {
- var shadowBlur = size / 2;
- var r2 = size + shadowBlur;
- var offsetDistance = 10000;
- var circle = new Canvas(r2 * 2, r2 * 2);
- var context = circle.getContext('2d');
- context.shadowBlur = shadowBlur;
- context.shadowColor = 'black';
- context.shadowOffsetX = context.shadowOffsetY = offsetDistance;
- context.beginPath();
- context.arc(r2 - offsetDistance, r2 - offsetDistance, size, 0, Math.PI * 2, true);
- context.closePath();
- context.fill();
- return circle;
- }
- function colorize(pixels, gradient, options) {
- var maxOpacity = options.maxOpacity || 0.8;
- for (var i = 3, len = pixels.length, j; i < len; i += 4) {
- j = pixels[i] * 4; // get gradient color from opacity value
- if (pixels[i] / 256 > maxOpacity) {
- pixels[i] = 256 * maxOpacity;
- }
- pixels[i - 3] = gradient[j];
- pixels[i - 2] = gradient[j + 1];
- pixels[i - 1] = gradient[j + 2];
- }
- }
- function drawGray(context, dataSet, options) {
- var max = options.max || 100;
- var min = options.min || 0;
- // console.log(max)
- var size = options._size;
- if (size == undefined) {
- size = options.size;
- if (size == undefined) {
- size = 13;
- }
- }
- var intensity = new Intensity({
- gradient: options.gradient,
- max: max,
- min: min
- });
- var circle = createCircle(size);
- var circleHalfWidth = circle.width / 2;
- var circleHalfHeight = circle.height / 2;
- var data = dataSet;
- var dataOrderByAlpha = {};
- data.forEach(function (item, index) {
- var count = item.count === undefined ? 1 : item.count;
- var alpha = Math.min(1, count / max).toFixed(2);
- dataOrderByAlpha[alpha] = dataOrderByAlpha[alpha] || [];
- dataOrderByAlpha[alpha].push(item);
- });
- for (var i in dataOrderByAlpha) {
- if (isNaN(i)) continue;
- var _data = dataOrderByAlpha[i];
- context.beginPath();
- if (!options.withoutAlpha) {
- context.globalAlpha = i;
- }
- context.strokeStyle = intensity.getColor(i * max);
- _data.forEach(function (item, index) {
- if (!item.geometry) {
- return;
- }
- var coordinates = item.geometry._coordinates || item.geometry.coordinates;
- var type = item.geometry.type;
- if (type === 'Point') {
- var count = item.count === undefined ? 1 : item.count;
- context.globalAlpha = count / max;
- context.drawImage(circle, coordinates[0] - circleHalfWidth, coordinates[1] - circleHalfHeight);
- } else if (type === 'LineString') {
- var count = item.count === undefined ? 1 : item.count;
- context.globalAlpha = count / max;
- context.beginPath();
- pathSimple.draw(context, item, options);
- context.stroke();
- } else if (type === 'Polygon') {}
- });
- }
- }
- function draw$1(context, dataSet, options) {
- if (context.canvas.width <= 0 || context.canvas.height <= 0) {
- return;
- }
- var strength = options.strength || 0.3;
- context.strokeStyle = 'rgba(0,0,0,' + strength + ')';
- var shadowCanvas = new Canvas(context.canvas.width, context.canvas.height);
- var shadowContext = shadowCanvas.getContext('2d');
- shadowContext.scale(devicePixelRatio, devicePixelRatio);
- options = options || {};
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- context.save();
- var intensity = new Intensity({
- gradient: options.gradient
- });
- //console.time('drawGray')
- drawGray(shadowContext, data, options);
- //console.timeEnd('drawGray');
- // return false;
- if (!options.absolute) {
- //console.time('changeColor');
- var colored = shadowContext.getImageData(0, 0, context.canvas.width, context.canvas.height);
- colorize(colored.data, intensity.getImageData(), options);
- //console.timeEnd('changeColor');
- context.putImageData(colored, 0, 0);
- context.restore();
- }
- intensity = null;
- shadowCanvas = null;
- }
- var drawHeatmap = {
- draw: draw$1
- };
- /**
- * @author kyle / http://nikai.us/
- */
- var drawGrid = {
- draw: function draw(context, dataSet, options) {
- context.save();
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- var grids = {};
- var size = options._size || options.size || 50;
- var offset = options.offset || {
- x: 0,
- y: 0
- };
- for (var i = 0; i < data.length; i++) {
- var coordinates = data[i].geometry._coordinates || data[i].geometry.coordinates;
- var gridKey = Math.floor((coordinates[0] - offset.x) / size) + "," + Math.floor((coordinates[1] - offset.y) / size);
- if (!grids[gridKey]) {
- grids[gridKey] = 0;
- }
- grids[gridKey] += ~~(data[i].count || 1);
- }
- var intensity = new Intensity({
- max: options.max || 100,
- gradient: options.gradient
- });
- for (var gridKey in grids) {
- gridKey = gridKey.split(",");
- context.beginPath();
- context.rect(gridKey[0] * size + .5 + offset.x, gridKey[1] * size + .5 + offset.y, size, size);
- context.fillStyle = intensity.getColor(grids[gridKey]);
- context.fill();
- if (options.strokeStyle && options.lineWidth) {
- context.stroke();
- }
- }
- if (options.label && options.label.show !== false) {
- context.fillStyle = options.label.fillStyle || 'white';
- if (options.label.font) {
- context.font = options.label.font;
- }
- if (options.label.shadowColor) {
- context.shadowColor = options.label.shadowColor;
- }
- if (options.label.shadowBlur) {
- context.shadowBlur = options.label.shadowBlur;
- }
- for (var gridKey in grids) {
- gridKey = gridKey.split(",");
- var text = grids[gridKey];
- var textWidth = context.measureText(text).width;
- context.fillText(text, gridKey[0] * size + .5 + offset.x + size / 2 - textWidth / 2, gridKey[1] * size + .5 + offset.y + size / 2 + 5);
- }
- }
- context.restore();
- }
- };
- /**
- * @author kyle / http://nikai.us/
- */
- function hex_corner$1(center, size, i) {
- var angle_deg = 60 * i + 30;
- var angle_rad = Math.PI / 180 * angle_deg;
- return [center.x + size * Math.cos(angle_rad), center.y + size * Math.sin(angle_rad)];
- }
- var drawHoneycomb = {
- draw: function draw(context, dataSet, options) {
- context.save();
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- for (var key in options) {
- context[key] = options[key];
- }
- var grids = {};
- var offset = options.offset || {
- x: 10,
- y: 10
- };
- var r = options._size || options.size || 40;
- r = r / 2 / Math.sin(Math.PI / 3);
- var dx = r * 2 * Math.sin(Math.PI / 3);
- var dy = r * 1.5;
- var binsById = {};
- for (var i = 0; i < data.length; i++) {
- var coordinates = data[i].geometry._coordinates || data[i].geometry.coordinates;
- var py = (coordinates[1] - offset.y) / dy,
- pj = Math.round(py),
- px = (coordinates[0] - offset.x) / dx - (pj & 1 ? .5 : 0),
- pi = Math.round(px),
- py1 = py - pj;
- if (Math.abs(py1) * 3 > 1) {
- var px1 = px - pi,
- pi2 = pi + (px < pi ? -1 : 1) / 2,
- pj2 = pj + (py < pj ? -1 : 1),
- px2 = px - pi2,
- py2 = py - pj2;
- if (px1 * px1 + py1 * py1 > px2 * px2 + py2 * py2) pi = pi2 + (pj & 1 ? 1 : -1) / 2, pj = pj2;
- }
- var id = pi + "-" + pj,
- bin = binsById[id];
- if (bin) {
- bin.push(data[i]);
- } else {
- bin = binsById[id] = [data[i]];
- bin.i = pi;
- bin.j = pj;
- bin.x = (pi + (pj & 1 ? 1 / 2 : 0)) * dx;
- bin.y = pj * dy;
- }
- }
- var intensity = new Intensity({
- max: options.max || 100,
- maxSize: r,
- gradient: options.gradient
- });
- for (var key in binsById) {
- var item = binsById[key];
- context.beginPath();
- for (var j = 0; j < 6; j++) {
- var result = hex_corner$1({
- x: item.x + offset.x,
- y: item.y + offset.y
- }, r, j);
- context.lineTo(result[0], result[1]);
- }
- context.closePath();
- var count = 0;
- for (var i = 0; i < item.length; i++) {
- count += item[i].count || 1;
- }
- item.count = count;
- context.fillStyle = intensity.getColor(count);
- context.fill();
- if (options.strokeStyle && options.lineWidth) {
- context.stroke();
- }
- }
- if (options.label && options.label.show !== false) {
- context.fillStyle = options.label.fillStyle || 'white';
- if (options.label.font) {
- context.font = options.label.font;
- }
- if (options.label.shadowColor) {
- context.shadowColor = options.label.shadowColor;
- }
- if (options.label.shadowBlur) {
- context.shadowBlur = options.label.shadowBlur;
- }
- for (var key in binsById) {
- var item = binsById[key];
- var text = item.count;
- if (text < 0) {
- text = text.toFixed(2);
- } else {
- text = ~~text;
- }
- var textWidth = context.measureText(text).width;
- context.fillText(text, item.x + offset.x - textWidth / 2, item.y + offset.y + 5);
- }
- }
- context.restore();
- }
- };
- function createShader(gl, src, type) {
- var shader = gl.createShader(type);
- gl.shaderSource(shader, src);
- gl.compileShader(shader);
- return shader;
- }
- function initShaders(gl, vs_source, fs_source) {
- var vertexShader = createShader(gl, vs_source, gl.VERTEX_SHADER);
- var fragmentShader = createShader(gl, fs_source, gl.FRAGMENT_SHADER);
- var glProgram = gl.createProgram();
- gl.attachShader(glProgram, vertexShader);
- gl.attachShader(glProgram, fragmentShader);
- gl.linkProgram(glProgram);
- gl.useProgram(glProgram);
- return glProgram;
- }
- function getColorData(color) {
- var tmpCanvas = document.createElement('canvas');
- var tmpCtx = tmpCanvas.getContext('2d');
- tmpCanvas.width = 1;
- tmpCanvas.height = 1;
- tmpCtx.fillStyle = color;
- tmpCtx.fillRect(0, 0, 1, 1);
- return tmpCtx.getImageData(0, 0, 1, 1).data;
- }
- var vs_s = ['attribute vec4 a_Position;', 'void main() {', 'gl_Position = a_Position;', 'gl_PointSize = 30.0;', '}'].join('');
- var fs_s = ['precision mediump float;', 'uniform vec4 u_FragColor;', 'void main() {', 'gl_FragColor = u_FragColor;', '}'].join('');
- function draw$2(gl, data, options) {
- if (!data) {
- return;
- }
- var program = initShaders(gl, vs_s, fs_s);
- gl.enable(gl.BLEND);
- gl.blendFunc(gl.SRC_ALPHA, gl.ONE);
- //gl.clearColor(0.0, 0.0, 1.0, 1.0);
- gl.clear(gl.COLOR_BUFFER_BIT);
- var halfCanvasWidth = gl.canvas.width / 2;
- var halfCanvasHeight = gl.canvas.height / 2;
- // Create a buffer object
- var vertexBuffer = gl.createBuffer();
- // Bind the buffer object to target
- gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
- var a_Position = gl.getAttribLocation(program, 'a_Position');
- // Assign the buffer object to a_Position variable
- gl.vertexAttribPointer(a_Position, 2, gl.FLOAT, false, 0, 0);
- // Enable the assignment to a_Position variable
- gl.enableVertexAttribArray(a_Position);
- var uFragColor = gl.getUniformLocation(program, 'u_FragColor');
- var colored = getColorData(options.strokeStyle || 'red');
- gl.uniform4f(uFragColor, colored[0] / 255, colored[1] / 255, colored[2] / 255, colored[3] / 255);
- gl.lineWidth(options.lineWidth || 1);
- for (var i = 0, len = data.length; i < len; i++) {
- var _geometry = data[i].geometry._coordinates;
- var verticesData = [];
- for (var j = 0; j < _geometry.length; j++) {
- var item = _geometry[j];
- var x = (item[0] - halfCanvasWidth) / halfCanvasWidth;
- var y = (halfCanvasHeight - item[1]) / halfCanvasHeight;
- verticesData.push(x, y);
- }
- var vertices = new Float32Array(verticesData);
- // Write date into the buffer object
- gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);
- gl.drawArrays(gl.LINE_STRIP, 0, _geometry.length);
- }
- }
- var line = {
- draw: draw$2
- };
- var vs_s$1 = ['attribute vec4 a_Position;', 'attribute float a_PointSize;', 'void main() {', 'gl_Position = a_Position;', 'gl_PointSize = a_PointSize;', '}'].join('');
- var fs_s$1 = ['precision mediump float;', 'uniform vec4 u_FragColor;', 'void main() {', 'gl_FragColor = u_FragColor;', '}'].join('');
- function draw$3(gl, data, options) {
- if (!data) {
- return;
- }
- var program = initShaders(gl, vs_s$1, fs_s$1);
- var a_Position = gl.getAttribLocation(program, 'a_Position');
- var a_PointSize = gl.getAttribLocation(program, 'a_PointSize');
- var uFragColor = gl.getUniformLocation(program, 'u_FragColor');
- //gl.clearColor(0.0, 0.0, 1.0, 1.0);
- gl.clear(gl.COLOR_BUFFER_BIT);
- var halfCanvasWidth = gl.canvas.width / 2;
- var halfCanvasHeight = gl.canvas.height / 2;
- var verticesData = [];
- var count = 0;
- for (var i = 0; i < data.length; i++) {
- var item = data[i].geometry._coordinates;
- var x = (item[0] - halfCanvasWidth) / halfCanvasWidth;
- var y = (halfCanvasHeight - item[1]) / halfCanvasHeight;
- if (x < -1 || x > 1 || y < -1 || y > 1) {
- continue;
- }
- verticesData.push(x, y);
- count++;
- }
- var vertices = new Float32Array(verticesData);
- var n = count; // The number of vertices
- // Create a buffer object
- var vertexBuffer = gl.createBuffer();
- // Bind the buffer object to target
- gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuffer);
- // Write date into the buffer object
- gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);
- // Assign the buffer object to a_Position variable
- gl.vertexAttribPointer(a_Position, 2, gl.FLOAT, false, 0, 0);
- // Enable the assignment to a_Position variable
- gl.enableVertexAttribArray(a_Position);
- gl.vertexAttrib1f(a_PointSize, options._size);
- var colored = getColorData(options.fillStyle || 'red');
- gl.uniform4f(uFragColor, colored[0] / 255, colored[1] / 255, colored[2] / 255, colored[3] / 255);
- gl.drawArrays(gl.POINTS, 0, n);
- }
- var point = {
- draw: draw$3
- };
- function earcut(data, holeIndices, dim) {
- dim = dim || 2;
- var hasHoles = holeIndices && holeIndices.length,
- outerLen = hasHoles ? holeIndices[0] * dim : data.length,
- outerNode = linkedList(data, 0, outerLen, dim, true),
- triangles = [];
- if (!outerNode) return triangles;
- var minX, minY, maxX, maxY, x, y, size;
- if (hasHoles) outerNode = eliminateHoles(data, holeIndices, outerNode, dim);
- // if the shape is not too simple, we'll use z-order curve hash later; calculate polygon bbox
- if (data.length > 80 * dim) {
- minX = maxX = data[0];
- minY = maxY = data[1];
- for (var i = dim; i < outerLen; i += dim) {
- x = data[i];
- y = data[i + 1];
- if (x < minX) minX = x;
- if (y < minY) minY = y;
- if (x > maxX) maxX = x;
- if (y > maxY) maxY = y;
- }
- // minX, minY and size are later used to transform coords into integers for z-order calculation
- size = Math.max(maxX - minX, maxY - minY);
- }
- earcutLinked(outerNode, triangles, dim, minX, minY, size);
- return triangles;
- }
- // create a circular doubly linked list from polygon points in the specified winding order
- function linkedList(data, start, end, dim, clockwise) {
- var i, last;
- if (clockwise === signedArea(data, start, end, dim) > 0) {
- for (i = start; i < end; i += dim) {
- last = insertNode(i, data[i], data[i + 1], last);
- }
- } else {
- for (i = end - dim; i >= start; i -= dim) {
- last = insertNode(i, data[i], data[i + 1], last);
- }
- }
- if (last && equals(last, last.next)) {
- removeNode(last);
- last = last.next;
- }
- return last;
- }
- // eliminate colinear or duplicate points
- function filterPoints(start, end) {
- if (!start) return start;
- if (!end) end = start;
- var p = start,
- again;
- do {
- again = false;
- if (!p.steiner && (equals(p, p.next) || area(p.prev, p, p.next) === 0)) {
- removeNode(p);
- p = end = p.prev;
- if (p === p.next) return null;
- again = true;
- } else {
- p = p.next;
- }
- } while (again || p !== end);
- return end;
- }
- // main ear slicing loop which triangulates a polygon (given as a linked list)
- function earcutLinked(ear, triangles, dim, minX, minY, size, pass) {
- if (!ear) return;
- // interlink polygon nodes in z-order
- if (!pass && size) indexCurve(ear, minX, minY, size);
- var stop = ear,
- prev,
- next;
- // iterate through ears, slicing them one by one
- while (ear.prev !== ear.next) {
- prev = ear.prev;
- next = ear.next;
- if (size ? isEarHashed(ear, minX, minY, size) : isEar(ear)) {
- // cut off the triangle
- triangles.push(prev.i / dim);
- triangles.push(ear.i / dim);
- triangles.push(next.i / dim);
- removeNode(ear);
- // skipping the next vertice leads to less sliver triangles
- ear = next.next;
- stop = next.next;
- continue;
- }
- ear = next;
- // if we looped through the whole remaining polygon and can't find any more ears
- if (ear === stop) {
- // try filtering points and slicing again
- if (!pass) {
- earcutLinked(filterPoints(ear), triangles, dim, minX, minY, size, 1);
- // if this didn't work, try curing all small self-intersections locally
- } else if (pass === 1) {
- ear = cureLocalIntersections(ear, triangles, dim);
- earcutLinked(ear, triangles, dim, minX, minY, size, 2);
- // as a last resort, try splitting the remaining polygon into two
- } else if (pass === 2) {
- splitEarcut(ear, triangles, dim, minX, minY, size);
- }
- break;
- }
- }
- }
- // check whether a polygon node forms a valid ear with adjacent nodes
- function isEar(ear) {
- var a = ear.prev,
- b = ear,
- c = ear.next;
- if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
- // now make sure we don't have other points inside the potential ear
- var p = ear.next.next;
- while (p !== ear.prev) {
- if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
- p = p.next;
- }
- return true;
- }
- function isEarHashed(ear, minX, minY, size) {
- var a = ear.prev,
- b = ear,
- c = ear.next;
- if (area(a, b, c) >= 0) return false; // reflex, can't be an ear
- // triangle bbox; min & max are calculated like this for speed
- var minTX = a.x < b.x ? a.x < c.x ? a.x : c.x : b.x < c.x ? b.x : c.x,
- minTY = a.y < b.y ? a.y < c.y ? a.y : c.y : b.y < c.y ? b.y : c.y,
- maxTX = a.x > b.x ? a.x > c.x ? a.x : c.x : b.x > c.x ? b.x : c.x,
- maxTY = a.y > b.y ? a.y > c.y ? a.y : c.y : b.y > c.y ? b.y : c.y;
- // z-order range for the current triangle bbox;
- var minZ = zOrder(minTX, minTY, minX, minY, size),
- maxZ = zOrder(maxTX, maxTY, minX, minY, size);
- // first look for points inside the triangle in increasing z-order
- var p = ear.nextZ;
- while (p && p.z <= maxZ) {
- if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
- p = p.nextZ;
- }
- // then look for points in decreasing z-order
- p = ear.prevZ;
- while (p && p.z >= minZ) {
- if (p !== ear.prev && p !== ear.next && pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
- p = p.prevZ;
- }
- return true;
- }
- // go through all polygon nodes and cure small local self-intersections
- function cureLocalIntersections(start, triangles, dim) {
- var p = start;
- do {
- var a = p.prev,
- b = p.next.next;
- if (!equals(a, b) && intersects(a, p, p.next, b) && locallyInside(a, b) && locallyInside(b, a)) {
- triangles.push(a.i / dim);
- triangles.push(p.i / dim);
- triangles.push(b.i / dim);
- // remove two nodes involved
- removeNode(p);
- removeNode(p.next);
- p = start = b;
- }
- p = p.next;
- } while (p !== start);
- return p;
- }
- // try splitting polygon into two and triangulate them independently
- function splitEarcut(start, triangles, dim, minX, minY, size) {
- // look for a valid diagonal that divides the polygon into two
- var a = start;
- do {
- var b = a.next.next;
- while (b !== a.prev) {
- if (a.i !== b.i && isValidDiagonal(a, b)) {
- // split the polygon in two by the diagonal
- var c = splitPolygon(a, b);
- // filter colinear points around the cuts
- a = filterPoints(a, a.next);
- c = filterPoints(c, c.next);
- // run earcut on each half
- earcutLinked(a, triangles, dim, minX, minY, size);
- earcutLinked(c, triangles, dim, minX, minY, size);
- return;
- }
- b = b.next;
- }
- a = a.next;
- } while (a !== start);
- }
- // link every hole into the outer loop, producing a single-ring polygon without holes
- function eliminateHoles(data, holeIndices, outerNode, dim) {
- var queue = [],
- i,
- len,
- start,
- end,
- list;
- for (i = 0, len = holeIndices.length; i < len; i++) {
- start = holeIndices[i] * dim;
- end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
- list = linkedList(data, start, end, dim, false);
- if (list === list.next) list.steiner = true;
- queue.push(getLeftmost(list));
- }
- queue.sort(compareX);
- // process holes from left to right
- for (i = 0; i < queue.length; i++) {
- eliminateHole(queue[i], outerNode);
- outerNode = filterPoints(outerNode, outerNode.next);
- }
- return outerNode;
- }
- function compareX(a, b) {
- return a.x - b.x;
- }
- // find a bridge between vertices that connects hole with an outer ring and and link it
- function eliminateHole(hole, outerNode) {
- outerNode = findHoleBridge(hole, outerNode);
- if (outerNode) {
- var b = splitPolygon(outerNode, hole);
- filterPoints(b, b.next);
- }
- }
- // David Eberly's algorithm for finding a bridge between hole and outer polygon
- function findHoleBridge(hole, outerNode) {
- var p = outerNode,
- hx = hole.x,
- hy = hole.y,
- qx = -Infinity,
- m;
- // find a segment intersected by a ray from the hole's leftmost point to the left;
- // segment's endpoint with lesser x will be potential connection point
- do {
- if (hy <= p.y && hy >= p.next.y) {
- var x = p.x + (hy - p.y) * (p.next.x - p.x) / (p.next.y - p.y);
- if (x <= hx && x > qx) {
- qx = x;
- if (x === hx) {
- if (hy === p.y) return p;
- if (hy === p.next.y) return p.next;
- }
- m = p.x < p.next.x ? p : p.next;
- }
- }
- p = p.next;
- } while (p !== outerNode);
- if (!m) return null;
- if (hx === qx) return m.prev; // hole touches outer segment; pick lower endpoint
- // look for points inside the triangle of hole point, segment intersection and endpoint;
- // if there are no points found, we have a valid connection;
- // otherwise choose the point of the minimum angle with the ray as connection point
- var stop = m,
- mx = m.x,
- my = m.y,
- tanMin = Infinity,
- tan;
- p = m.next;
- while (p !== stop) {
- if (hx >= p.x && p.x >= mx && pointInTriangle(hy < my ? hx : qx, hy, mx, my, hy < my ? qx : hx, hy, p.x, p.y)) {
- tan = Math.abs(hy - p.y) / (hx - p.x); // tangential
- if ((tan < tanMin || tan === tanMin && p.x > m.x) && locallyInside(p, hole)) {
- m = p;
- tanMin = tan;
- }
- }
- p = p.next;
- }
- return m;
- }
- // interlink polygon nodes in z-order
- function indexCurve(start, minX, minY, size) {
- var p = start;
- do {
- if (p.z === null) p.z = zOrder(p.x, p.y, minX, minY, size);
- p.prevZ = p.prev;
- p.nextZ = p.next;
- p = p.next;
- } while (p !== start);
- p.prevZ.nextZ = null;
- p.prevZ = null;
- sortLinked(p);
- }
- // Simon Tatham's linked list merge sort algorithm
- // http://www.chiark.greenend.org.uk/~sgtatham/algorithms/listsort.html
- function sortLinked(list) {
- var i,
- p,
- q,
- e,
- tail,
- numMerges,
- pSize,
- qSize,
- inSize = 1;
- do {
- p = list;
- list = null;
- tail = null;
- numMerges = 0;
- while (p) {
- numMerges++;
- q = p;
- pSize = 0;
- for (i = 0; i < inSize; i++) {
- pSize++;
- q = q.nextZ;
- if (!q) break;
- }
- qSize = inSize;
- while (pSize > 0 || qSize > 0 && q) {
- if (pSize === 0) {
- e = q;
- q = q.nextZ;
- qSize--;
- } else if (qSize === 0 || !q) {
- e = p;
- p = p.nextZ;
- pSize--;
- } else if (p.z <= q.z) {
- e = p;
- p = p.nextZ;
- pSize--;
- } else {
- e = q;
- q = q.nextZ;
- qSize--;
- }
- if (tail) tail.nextZ = e;else list = e;
- e.prevZ = tail;
- tail = e;
- }
- p = q;
- }
- tail.nextZ = null;
- inSize *= 2;
- } while (numMerges > 1);
- return list;
- }
- // z-order of a point given coords and size of the data bounding box
- function zOrder(x, y, minX, minY, size) {
- // coords are transformed into non-negative 15-bit integer range
- x = 32767 * (x - minX) / size;
- y = 32767 * (y - minY) / size;
- x = (x | x << 8) & 0x00FF00FF;
- x = (x | x << 4) & 0x0F0F0F0F;
- x = (x | x << 2) & 0x33333333;
- x = (x | x << 1) & 0x55555555;
- y = (y | y << 8) & 0x00FF00FF;
- y = (y | y << 4) & 0x0F0F0F0F;
- y = (y | y << 2) & 0x33333333;
- y = (y | y << 1) & 0x55555555;
- return x | y << 1;
- }
- // find the leftmost node of a polygon ring
- function getLeftmost(start) {
- var p = start,
- leftmost = start;
- do {
- if (p.x < leftmost.x) leftmost = p;
- p = p.next;
- } while (p !== start);
- return leftmost;
- }
- // check if a point lies within a convex triangle
- function pointInTriangle(ax, ay, bx, by, cx, cy, px, py) {
- return (cx - px) * (ay - py) - (ax - px) * (cy - py) >= 0 && (ax - px) * (by - py) - (bx - px) * (ay - py) >= 0 && (bx - px) * (cy - py) - (cx - px) * (by - py) >= 0;
- }
- // check if a diagonal between two polygon nodes is valid (lies in polygon interior)
- function isValidDiagonal(a, b) {
- return a.next.i !== b.i && a.prev.i !== b.i && !intersectsPolygon(a, b) && locallyInside(a, b) && locallyInside(b, a) && middleInside(a, b);
- }
- // signed area of a triangle
- function area(p, q, r) {
- return (q.y - p.y) * (r.x - q.x) - (q.x - p.x) * (r.y - q.y);
- }
- // check if two points are equal
- function equals(p1, p2) {
- return p1.x === p2.x && p1.y === p2.y;
- }
- // check if two segments intersect
- function intersects(p1, q1, p2, q2) {
- if (equals(p1, q1) && equals(p2, q2) || equals(p1, q2) && equals(p2, q1)) return true;
- return area(p1, q1, p2) > 0 !== area(p1, q1, q2) > 0 && area(p2, q2, p1) > 0 !== area(p2, q2, q1) > 0;
- }
- // check if a polygon diagonal intersects any polygon segments
- function intersectsPolygon(a, b) {
- var p = a;
- do {
- if (p.i !== a.i && p.next.i !== a.i && p.i !== b.i && p.next.i !== b.i && intersects(p, p.next, a, b)) return true;
- p = p.next;
- } while (p !== a);
- return false;
- }
- // check if a polygon diagonal is locally inside the polygon
- function locallyInside(a, b) {
- return area(a.prev, a, a.next) < 0 ? area(a, b, a.next) >= 0 && area(a, a.prev, b) >= 0 : area(a, b, a.prev) < 0 || area(a, a.next, b) < 0;
- }
- // check if the middle point of a polygon diagonal is inside the polygon
- function middleInside(a, b) {
- var p = a,
- inside = false,
- px = (a.x + b.x) / 2,
- py = (a.y + b.y) / 2;
- do {
- if (p.y > py !== p.next.y > py && px < (p.next.x - p.x) * (py - p.y) / (p.next.y - p.y) + p.x) inside = !inside;
- p = p.next;
- } while (p !== a);
- return inside;
- }
- // link two polygon vertices with a bridge; if the vertices belong to the same ring, it splits polygon into two;
- // if one belongs to the outer ring and another to a hole, it merges it into a single ring
- function splitPolygon(a, b) {
- var a2 = new Node(a.i, a.x, a.y),
- b2 = new Node(b.i, b.x, b.y),
- an = a.next,
- bp = b.prev;
- a.next = b;
- b.prev = a;
- a2.next = an;
- an.prev = a2;
- b2.next = a2;
- a2.prev = b2;
- bp.next = b2;
- b2.prev = bp;
- return b2;
- }
- // create a node and optionally link it with previous one (in a circular doubly linked list)
- function insertNode(i, x, y, last) {
- var p = new Node(i, x, y);
- if (!last) {
- p.prev = p;
- p.next = p;
- } else {
- p.next = last.next;
- p.prev = last;
- last.next.prev = p;
- last.next = p;
- }
- return p;
- }
- function removeNode(p) {
- p.next.prev = p.prev;
- p.prev.next = p.next;
- if (p.prevZ) p.prevZ.nextZ = p.nextZ;
- if (p.nextZ) p.nextZ.prevZ = p.prevZ;
- }
- function Node(i, x, y) {
- // vertice index in coordinates array
- this.i = i;
- // vertex coordinates
- this.x = x;
- this.y = y;
- // previous and next vertice nodes in a polygon ring
- this.prev = null;
- this.next = null;
- // z-order curve value
- this.z = null;
- // previous and next nodes in z-order
- this.prevZ = null;
- this.nextZ = null;
- // indicates whether this is a steiner point
- this.steiner = false;
- }
- // return a percentage difference between the polygon area and its triangulation area;
- // used to verify correctness of triangulation
- earcut.deviation = function (data, holeIndices, dim, triangles) {
- var hasHoles = holeIndices && holeIndices.length;
- var outerLen = hasHoles ? holeIndices[0] * dim : data.length;
- var polygonArea = Math.abs(signedArea(data, 0, outerLen, dim));
- if (hasHoles) {
- for (var i = 0, len = holeIndices.length; i < len; i++) {
- var start = holeIndices[i] * dim;
- var end = i < len - 1 ? holeIndices[i + 1] * dim : data.length;
- polygonArea -= Math.abs(signedArea(data, start, end, dim));
- }
- }
- var trianglesArea = 0;
- for (i = 0; i < triangles.length; i += 3) {
- var a = triangles[i] * dim;
- var b = triangles[i + 1] * dim;
- var c = triangles[i + 2] * dim;
- trianglesArea += Math.abs((data[a] - data[c]) * (data[b + 1] - data[a + 1]) - (data[a] - data[b]) * (data[c + 1] - data[a + 1]));
- }
- return polygonArea === 0 && trianglesArea === 0 ? 0 : Math.abs((trianglesArea - polygonArea) / polygonArea);
- };
- function signedArea(data, start, end, dim) {
- var sum = 0;
- for (var i = start, j = end - dim; i < end; i += dim) {
- sum += (data[j] - data[i]) * (data[i + 1] + data[j + 1]);
- j = i;
- }
- return sum;
- }
- // turn a polygon in a multi-dimensional array form (e.g. as in GeoJSON) into a form Earcut accepts
- earcut.flatten = function (data) {
- var dim = data[0][0].length,
- result = { vertices: [], holes: [], dimensions: dim },
- holeIndex = 0;
- for (var i = 0; i < data.length; i++) {
- for (var j = 0; j < data[i].length; j++) {
- for (var d = 0; d < dim; d++) {
- result.vertices.push(data[i][j][d]);
- }
- }
- if (i > 0) {
- holeIndex += data[i - 1].length;
- result.holes.push(holeIndex);
- }
- }
- return result;
- };
- var vs_s$2 = ['attribute vec4 a_Position;', 'void main() {', 'gl_Position = a_Position;', 'gl_PointSize = 30.0;', '}'].join('');
- var fs_s$2 = ['precision mediump float;', 'uniform vec4 u_FragColor;', 'void main() {', 'gl_FragColor = u_FragColor;', '}'].join('');
- function draw$4(gl, data, options) {
- if (!data) {
- return;
- }
- // gl.clearColor(0.0, 0.0, 0.0, 1.0);
- gl.clear(gl.COLOR_BUFFER_BIT);
- gl.viewport(0, 0, gl.canvas.width, gl.canvas.height);
- var program = initShaders(gl, vs_s$2, fs_s$2);
- gl.enable(gl.BLEND);
- gl.blendFunc(gl.SRC_ALPHA, gl.ONE);
- var halfCanvasWidth = gl.canvas.width / 2;
- var halfCanvasHeight = gl.canvas.height / 2;
- // Bind the buffer object to target
- gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
- gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.createBuffer());
- var a_Position = gl.getAttribLocation(program, 'a_Position');
- // Assign the buffer object to a_Position variable
- gl.vertexAttribPointer(a_Position, 2, gl.FLOAT, false, 0, 0);
- // Enable the assignment to a_Position variable
- gl.enableVertexAttribArray(a_Position);
- var uFragColor = gl.getUniformLocation(program, 'u_FragColor');
- var colored = getColorData(options.fillStyle || 'red');
- gl.uniform4f(uFragColor, colored[0] / 255, colored[1] / 255, colored[2] / 255, colored[3] / 255);
- gl.lineWidth(options.lineWidth || 1);
- var verticesArr = [];
- var trianglesArr = [];
- var maxSize = 65536;
- var indexOffset = 0;
- for (var i = 0, len = data.length; i < len; i++) {
- var flatten = earcut.flatten(data[i].geometry._coordinates || data[i].geometry.coordinates);
- var vertices = flatten.vertices;
- indexOffset = verticesArr.length / 2;
- for (var j = 0; j < vertices.length; j += 2) {
- vertices[j] = (vertices[j] - halfCanvasWidth) / halfCanvasWidth;
- vertices[j + 1] = (halfCanvasHeight - vertices[j + 1]) / halfCanvasHeight;
- }
- if ((verticesArr.length + vertices.length) / 2 > maxSize) {
- gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(verticesArr), gl.STATIC_DRAW);
- gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(trianglesArr), gl.STATIC_DRAW);
- gl.drawElements(gl.TRIANGLES, trianglesArr.length, gl.UNSIGNED_SHORT, 0);
- verticesArr.length = 0;
- trianglesArr.length = 0;
- indexOffset = 0;
- }
- for (var j = 0; j < vertices.length; j++) {
- verticesArr.push(vertices[j]);
- }
- var triangles = earcut(vertices, flatten.holes, flatten.dimensions);
- for (var j = 0; j < triangles.length; j++) {
- trianglesArr.push(triangles[j] + indexOffset);
- }
- }
- gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(verticesArr), gl.STATIC_DRAW);
- gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(trianglesArr), gl.STATIC_DRAW);
- gl.drawElements(gl.TRIANGLES, trianglesArr.length, gl.UNSIGNED_SHORT, 0);
- gl.bindBuffer(gl.ARRAY_BUFFER, null);
- gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
- }
- var polygon = {
- draw: draw$4
- };
- /**
- * @author kyle / http://nikai.us/
- */
- var webglDrawSimple = {
- draw: function draw(gl, dataSet, options) {
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- if (data.length > 0) {
- if (data[0].geometry.type == "LineString") {
- line.draw(gl, data, options);
- } else if (data[0].geometry.type == "Polygon" || data[0].geometry.type == "MultiPolygon") {
- polygon.draw(gl, data, options);
- } else {
- point.draw(gl, data, options);
- }
- }
- }
- };
- /**
- * 根据弧线的坐标节点数组
- */
- function getCurvePoints(points, options) {
- options = options || {};
- var curvePoints = [];
- for (var i = 0; i < points.length - 1; i++) {
- var p = getCurveByTwoPoints(points[i], points[i + 1], options.count);
- if (p && p.length > 0) {
- curvePoints = curvePoints.concat(p);
- }
- }
- return curvePoints;
- }
- /**
- * 根据两点获取曲线坐标点数组
- * @param Point 起点
- * @param Point 终点
- */
- function getCurveByTwoPoints(obj1, obj2, count) {
- if (!obj1 || !obj2) {
- return null;
- }
- var B1 = function B1(x) {
- return 1 - 2 * x + x * x;
- };
- var B2 = function B2(x) {
- return 2 * x - 2 * x * x;
- };
- var B3 = function B3(x) {
- return x * x;
- };
- var curveCoordinates = [];
- var count = count || 40; // 曲线是由一些小的线段组成的,这个表示这个曲线所有到的折线的个数
- var isFuture = false;
- var t, h, h2, lat3, lng3, j, t2;
- var LnArray = [];
- var i = 0;
- var inc = 0;
- if (typeof obj2 == "undefined") {
- if (typeof curveCoordinates != "undefined") {
- curveCoordinates = [];
- }
- return;
- }
- var lat1 = parseFloat(obj1.lat);
- var lat2 = parseFloat(obj2.lat);
- var lng1 = parseFloat(obj1.lng);
- var lng2 = parseFloat(obj2.lng);
- // 计算曲线角度的方法
- if (lng2 > lng1) {
- if (parseFloat(lng2 - lng1) > 180) {
- if (lng1 < 0) {
- lng1 = parseFloat(180 + 180 + lng1);
- }
- }
- }
- if (lng1 > lng2) {
- if (parseFloat(lng1 - lng2) > 180) {
- if (lng2 < 0) {
- lng2 = parseFloat(180 + 180 + lng2);
- }
- }
- }
- j = 0;
- t2 = 0;
- if (lat2 == lat1) {
- t = 0;
- h = lng1 - lng2;
- } else if (lng2 == lng1) {
- t = Math.PI / 2;
- h = lat1 - lat2;
- } else {
- t = Math.atan((lat2 - lat1) / (lng2 - lng1));
- h = (lat2 - lat1) / Math.sin(t);
- }
- if (t2 == 0) {
- t2 = t + Math.PI / 5;
- }
- h2 = h / 2;
- lng3 = h2 * Math.cos(t2) + lng1;
- lat3 = h2 * Math.sin(t2) + lat1;
- for (i = 0; i < count + 1; i++) {
- curveCoordinates.push([lng1 * B1(inc) + lng3 * B2(inc) + lng2 * B3(inc), lat1 * B1(inc) + lat3 * B2(inc) + lat2 * B3(inc)]);
- inc = inc + 1 / count;
- }
- return curveCoordinates;
- }
- var curve = {
- getPoints: getCurvePoints
- };
- /*
- FDEB algorithm implementation [www.win.tue.nl/~dholten/papers/forcebundles_eurovis.pdf].
- Author: (github.com/upphiminn)
- 2013
- */
- var ForceEdgeBundling = function ForceEdgeBundling() {
- var data_nodes = {},
- // {'nodeid':{'x':,'y':},..}
- data_edges = [],
- // [{'source':'nodeid1', 'target':'nodeid2'},..]
- compatibility_list_for_edge = [],
- subdivision_points_for_edge = [],
- K = 0.1,
- // global bundling constant controling edge stiffness
- S_initial = 0.1,
- // init. distance to move points
- P_initial = 1,
- // init. subdivision number
- P_rate = 2,
- // subdivision rate increase
- C = 6,
- // number of cycles to perform
- I_initial = 70,
- // init. number of iterations for cycle
- I_rate = 0.6666667,
- // rate at which iteration number decreases i.e. 2/3
- compatibility_threshold = 0.6,
- invers_quadratic_mode = false,
- eps = 1e-8;
- /*** Geometry Helper Methods ***/
- function vector_dot_product(p, q) {
- return p.x * q.x + p.y * q.y;
- }
- function edge_as_vector(P) {
- return { 'x': data_nodes[P.target].x - data_nodes[P.source].x,
- 'y': data_nodes[P.target].y - data_nodes[P.source].y };
- }
- function edge_length(e) {
- return Math.sqrt(Math.pow(data_nodes[e.source].x - data_nodes[e.target].x, 2) + Math.pow(data_nodes[e.source].y - data_nodes[e.target].y, 2));
- }
- function custom_edge_length(e) {
- return Math.sqrt(Math.pow(e.source.x - e.target.x, 2) + Math.pow(e.source.y - e.target.y, 2));
- }
- function edge_midpoint(e) {
- var middle_x = (data_nodes[e.source].x + data_nodes[e.target].x) / 2.0;
- var middle_y = (data_nodes[e.source].y + data_nodes[e.target].y) / 2.0;
- return { 'x': middle_x, 'y': middle_y };
- }
- function compute_divided_edge_length(e_idx) {
- var length = 0;
- for (var i = 1; i < subdivision_points_for_edge[e_idx].length; i++) {
- var segment_length = euclidean_distance(subdivision_points_for_edge[e_idx][i], subdivision_points_for_edge[e_idx][i - 1]);
- length += segment_length;
- }
- return length;
- }
- function euclidean_distance(p, q) {
- return Math.sqrt(Math.pow(p.x - q.x, 2) + Math.pow(p.y - q.y, 2));
- }
- function project_point_on_line(p, Q) {
- var L = Math.sqrt((Q.target.x - Q.source.x) * (Q.target.x - Q.source.x) + (Q.target.y - Q.source.y) * (Q.target.y - Q.source.y));
- var r = ((Q.source.y - p.y) * (Q.source.y - Q.target.y) - (Q.source.x - p.x) * (Q.target.x - Q.source.x)) / (L * L);
- return { 'x': Q.source.x + r * (Q.target.x - Q.source.x), 'y': Q.source.y + r * (Q.target.y - Q.source.y) };
- }
- /*** ********************** ***/
- /*** Initialization Methods ***/
- function initialize_edge_subdivisions() {
- for (var i = 0; i < data_edges.length; i++) {
- if (P_initial == 1) subdivision_points_for_edge[i] = []; //0 subdivisions
- else {
- subdivision_points_for_edge[i] = [];
- subdivision_points_for_edge[i].push(data_nodes[data_edges[i].source]);
- subdivision_points_for_edge[i].push(data_nodes[data_edges[i].target]);
- }
- }
- }
- function initialize_compatibility_lists() {
- for (var i = 0; i < data_edges.length; i++) {
- compatibility_list_for_edge[i] = [];
- } //0 compatible edges.
- }
- function filter_self_loops(edgelist) {
- var filtered_edge_list = [];
- for (var e = 0; e < edgelist.length; e++) {
- if (data_nodes[edgelist[e].source].x != data_nodes[edgelist[e].target].x && data_nodes[edgelist[e].source].y != data_nodes[edgelist[e].target].y) {
- //or smaller than eps
- filtered_edge_list.push(edgelist[e]);
- }
- }
- return filtered_edge_list;
- }
- /*** ********************** ***/
- /*** Force Calculation Methods ***/
- function apply_spring_force(e_idx, i, kP) {
- var prev = subdivision_points_for_edge[e_idx][i - 1];
- var next = subdivision_points_for_edge[e_idx][i + 1];
- var crnt = subdivision_points_for_edge[e_idx][i];
- var x = prev.x - crnt.x + next.x - crnt.x;
- var y = prev.y - crnt.y + next.y - crnt.y;
- x *= kP;
- y *= kP;
- return { 'x': x, 'y': y };
- }
- function apply_electrostatic_force(e_idx, i, S) {
- var sum_of_forces = { 'x': 0, 'y': 0 };
- var compatible_edges_list = compatibility_list_for_edge[e_idx];
- for (var oe = 0; oe < compatible_edges_list.length; oe++) {
- var force = { 'x': subdivision_points_for_edge[compatible_edges_list[oe]][i].x - subdivision_points_for_edge[e_idx][i].x,
- 'y': subdivision_points_for_edge[compatible_edges_list[oe]][i].y - subdivision_points_for_edge[e_idx][i].y };
- if (Math.abs(force.x) > eps || Math.abs(force.y) > eps) {
- var diff = 1 / Math.pow(custom_edge_length({ 'source': subdivision_points_for_edge[compatible_edges_list[oe]][i],
- 'target': subdivision_points_for_edge[e_idx][i] }), 1);
- sum_of_forces.x += force.x * diff;
- sum_of_forces.y += force.y * diff;
- }
- }
- return sum_of_forces;
- }
- function apply_resulting_forces_on_subdivision_points(e_idx, P, S) {
- var kP = K / (edge_length(data_edges[e_idx]) * (P + 1)); // kP=K/|P|(number of segments), where |P| is the initial length of edge P.
- // (length * (num of sub division pts - 1))
- var resulting_forces_for_subdivision_points = [{ 'x': 0, 'y': 0 }];
- for (var i = 1; i < P + 1; i++) {
- // exclude initial end points of the edge 0 and P+1
- var resulting_force = { 'x': 0, 'y': 0 };
- var spring_force = apply_spring_force(e_idx, i, kP);
- var electrostatic_force = apply_electrostatic_force(e_idx, i, S);
- resulting_force.x = S * (spring_force.x + electrostatic_force.x);
- resulting_force.y = S * (spring_force.y + electrostatic_force.y);
- resulting_forces_for_subdivision_points.push(resulting_force);
- }
- resulting_forces_for_subdivision_points.push({ 'x': 0, 'y': 0 });
- return resulting_forces_for_subdivision_points;
- }
- /*** ********************** ***/
- /*** Edge Division Calculation Methods ***/
- function update_edge_divisions(P) {
- for (var e_idx = 0; e_idx < data_edges.length; e_idx++) {
- if (P == 1) {
- subdivision_points_for_edge[e_idx].push(data_nodes[data_edges[e_idx].source]); // source
- subdivision_points_for_edge[e_idx].push(edge_midpoint(data_edges[e_idx])); // mid point
- subdivision_points_for_edge[e_idx].push(data_nodes[data_edges[e_idx].target]); // target
- } else {
- var divided_edge_length = compute_divided_edge_length(e_idx);
- var segment_length = divided_edge_length / (P + 1);
- var current_segment_length = segment_length;
- var new_subdivision_points = [];
- new_subdivision_points.push(data_nodes[data_edges[e_idx].source]); //source
- for (var i = 1; i < subdivision_points_for_edge[e_idx].length; i++) {
- var old_segment_length = euclidean_distance(subdivision_points_for_edge[e_idx][i], subdivision_points_for_edge[e_idx][i - 1]);
- while (old_segment_length > current_segment_length) {
- var percent_position = current_segment_length / old_segment_length;
- var new_subdivision_point_x = subdivision_points_for_edge[e_idx][i - 1].x;
- var new_subdivision_point_y = subdivision_points_for_edge[e_idx][i - 1].y;
- new_subdivision_point_x += percent_position * (subdivision_points_for_edge[e_idx][i].x - subdivision_points_for_edge[e_idx][i - 1].x);
- new_subdivision_point_y += percent_position * (subdivision_points_for_edge[e_idx][i].y - subdivision_points_for_edge[e_idx][i - 1].y);
- new_subdivision_points.push({ 'x': new_subdivision_point_x,
- 'y': new_subdivision_point_y });
- old_segment_length -= current_segment_length;
- current_segment_length = segment_length;
- }
- current_segment_length -= old_segment_length;
- }
- new_subdivision_points.push(data_nodes[data_edges[e_idx].target]); //target
- subdivision_points_for_edge[e_idx] = new_subdivision_points;
- }
- }
- }
- /*** ********************** ***/
- /*** Edge compatibility measures ***/
- function angle_compatibility(P, Q) {
- var result = Math.abs(vector_dot_product(edge_as_vector(P), edge_as_vector(Q)) / (edge_length(P) * edge_length(Q)));
- return result;
- }
- function scale_compatibility(P, Q) {
- var lavg = (edge_length(P) + edge_length(Q)) / 2.0;
- var result = 2.0 / (lavg / Math.min(edge_length(P), edge_length(Q)) + Math.max(edge_length(P), edge_length(Q)) / lavg);
- return result;
- }
- function position_compatibility(P, Q) {
- var lavg = (edge_length(P) + edge_length(Q)) / 2.0;
- var midP = { 'x': (data_nodes[P.source].x + data_nodes[P.target].x) / 2.0,
- 'y': (data_nodes[P.source].y + data_nodes[P.target].y) / 2.0 };
- var midQ = { 'x': (data_nodes[Q.source].x + data_nodes[Q.target].x) / 2.0,
- 'y': (data_nodes[Q.source].y + data_nodes[Q.target].y) / 2.0 };
- var result = lavg / (lavg + euclidean_distance(midP, midQ));
- return result;
- }
- function edge_visibility(P, Q) {
- var I0 = project_point_on_line(data_nodes[Q.source], { 'source': data_nodes[P.source],
- 'target': data_nodes[P.target] });
- var I1 = project_point_on_line(data_nodes[Q.target], { 'source': data_nodes[P.source],
- 'target': data_nodes[P.target] }); //send acutal edge points positions
- var midI = { 'x': (I0.x + I1.x) / 2.0,
- 'y': (I0.y + I1.y) / 2.0 };
- var midP = { 'x': (data_nodes[P.source].x + data_nodes[P.target].x) / 2.0,
- 'y': (data_nodes[P.source].y + data_nodes[P.target].y) / 2.0 };
- var result = Math.max(0, 1 - 2 * euclidean_distance(midP, midI) / euclidean_distance(I0, I1));
- return result;
- }
- function visibility_compatibility(P, Q) {
- return Math.min(edge_visibility(P, Q), edge_visibility(Q, P));
- }
- function compatibility_score(P, Q) {
- var result = angle_compatibility(P, Q) * scale_compatibility(P, Q) * position_compatibility(P, Q) * visibility_compatibility(P, Q);
- return result;
- }
- function are_compatible(P, Q) {
- // console.log('compatibility ' + P.source +' - '+ P.target + ' and ' + Q.source +' '+ Q.target);
- return compatibility_score(P, Q) >= compatibility_threshold;
- }
- function compute_compatibility_lists() {
- for (var e = 0; e < data_edges.length - 1; e++) {
- for (var oe = e + 1; oe < data_edges.length; oe++) {
- // don't want any duplicates
- if (e == oe) continue;else {
- if (are_compatible(data_edges[e], data_edges[oe])) {
- compatibility_list_for_edge[e].push(oe);
- compatibility_list_for_edge[oe].push(e);
- }
- }
- }
- }
- }
- /*** ************************ ***/
- /*** Main Bundling Loop Methods ***/
- var forcebundle = function forcebundle() {
- var S = S_initial;
- var I = I_initial;
- var P = P_initial;
- initialize_edge_subdivisions();
- initialize_compatibility_lists();
- update_edge_divisions(P);
- compute_compatibility_lists();
- for (var cycle = 0; cycle < C; cycle++) {
- for (var iteration = 0; iteration < I; iteration++) {
- var forces = [];
- for (var edge = 0; edge < data_edges.length; edge++) {
- forces[edge] = apply_resulting_forces_on_subdivision_points(edge, P, S);
- }
- for (var e = 0; e < data_edges.length; e++) {
- for (var i = 0; i < P + 1; i++) {
- subdivision_points_for_edge[e][i].x += forces[e][i].x;
- subdivision_points_for_edge[e][i].y += forces[e][i].y;
- }
- }
- }
- //prepare for next cycle
- S = S / 2;
- P = P * 2;
- I = I_rate * I;
- update_edge_divisions(P);
- // console.log('C' + cycle);
- // console.log('P' + P);
- // console.log('S' + S);
- }
- return subdivision_points_for_edge;
- };
- /*** ************************ ***/
- /*** Getters/Setters Methods ***/
- forcebundle.nodes = function (nl) {
- if (arguments.length == 0) {
- return data_nodes;
- } else {
- data_nodes = nl;
- }
- return forcebundle;
- };
- forcebundle.edges = function (ll) {
- if (arguments.length == 0) {
- return data_edges;
- } else {
- data_edges = filter_self_loops(ll); //remove edges to from to the same point
- }
- return forcebundle;
- };
- forcebundle.bundling_stiffness = function (k) {
- if (arguments.length == 0) {
- return K;
- } else {
- K = k;
- }
- return forcebundle;
- };
- forcebundle.step_size = function (step) {
- if (arguments.length == 0) {
- return S_initial;
- } else {
- S_initial = step;
- }
- return forcebundle;
- };
- forcebundle.cycles = function (c) {
- if (arguments.length == 0) {
- return C;
- } else {
- C = c;
- }
- return forcebundle;
- };
- forcebundle.iterations = function (i) {
- if (arguments.length == 0) {
- return I_initial;
- } else {
- I_initial = i;
- }
- return forcebundle;
- };
- forcebundle.iterations_rate = function (i) {
- if (arguments.length == 0) {
- return I_rate;
- } else {
- I_rate = i;
- }
- return forcebundle;
- };
- forcebundle.subdivision_points_seed = function (p) {
- if (arguments.length == 0) {
- return P;
- } else {
- P = p;
- }
- return forcebundle;
- };
- forcebundle.subdivision_rate = function (r) {
- if (arguments.length == 0) {
- return P_rate;
- } else {
- P_rate = r;
- }
- return forcebundle;
- };
- forcebundle.compatbility_threshold = function (t) {
- if (arguments.length == 0) {
- return compatbility_threshold;
- } else {
- compatibility_threshold = t;
- }
- return forcebundle;
- };
- /*** ************************ ***/
- return forcebundle;
- };
- /**
- * @author kyle / http://nikai.us/
- */
- /**
- * Category
- * @param {Object} splitList:
- * {
- * other: 1,
- * 1: 2,
- * 2: 3,
- * 3: 4,
- * 4: 5,
- * 5: 6,
- * 6: 7
- * }
- */
- function Category(splitList) {
- this.splitList = splitList || {
- other: 1
- };
- }
- Category.prototype.get = function (count) {
- var splitList = this.splitList;
- var value = splitList['other'];
- for (var i in splitList) {
- if (count == i) {
- value = splitList[i];
- break;
- }
- }
- return value;
- };
- /**
- * 根据DataSet自动生成对应的splitList
- */
- Category.prototype.generateByDataSet = function (dataSet, color) {
- var colors = color || ['rgba(255, 255, 0, 0.8)', 'rgba(253, 98, 104, 0.8)', 'rgba(255, 146, 149, 0.8)', 'rgba(255, 241, 193, 0.8)', 'rgba(110, 176, 253, 0.8)', 'rgba(52, 139, 251, 0.8)', 'rgba(17, 102, 252, 0.8)'];
- var data = dataSet.get();
- this.splitList = {};
- var count = 0;
- for (var i = 0; i < data.length; i++) {
- if (this.splitList[data[i].count] === undefined) {
- this.splitList[data[i].count] = colors[count];
- count++;
- }
- if (count >= colors.length - 1) {
- break;
- }
- }
- this.splitList['other'] = colors[colors.length - 1];
- };
- Category.prototype.getLegend = function (options) {
- var splitList = this.splitList;
- var container = document.createElement('div');
- container.style.cssText = "background:#fff; padding: 5px; border: 1px solid #ccc;";
- var html = '';
- for (var key in splitList) {
- html += '<div style="line-height: 19px;" value="' + key + '"><span style="vertical-align: -2px; display: inline-block; width: 30px;height: 19px;background:' + splitList[key] + ';"></span><span style="margin-left: 3px;">' + key + '<span></div>';
- }
- container.innerHTML = html;
- return container;
- };
- /**
- * @author kyle / http://nikai.us/
- */
- /**
- * Choropleth
- * @param {Object} splitList:
- * [
- * {
- * start: 0,
- * end: 2,
- * value: randomColor()
- * },{
- * start: 2,
- * end: 4,
- * value: randomColor()
- * },{
- * start: 4,
- * value: randomColor()
- * }
- * ];
- *
- */
- function Choropleth(splitList) {
- this.splitList = splitList || [{
- start: 0,
- value: 'red'
- }];
- }
- Choropleth.prototype.get = function (count) {
- var splitList = this.splitList;
- var value = false;
- for (var i = 0; i < splitList.length; i++) {
- if ((splitList[i].start === undefined || splitList[i].start !== undefined && count >= splitList[i].start) && (splitList[i].end === undefined || splitList[i].end !== undefined && count < splitList[i].end)) {
- value = splitList[i].value;
- break;
- }
- }
- return value;
- };
- /**
- * 根据DataSet自动生成对应的splitList
- */
- Choropleth.prototype.generateByDataSet = function (dataSet) {
- var min = dataSet.getMin('count');
- var max = dataSet.getMax('count');
- this.generateByMinMax(min, max);
- };
- /**
- * 根据DataSet自动生成对应的splitList
- */
- Choropleth.prototype.generateByMinMax = function (min, max) {
- var colors = ['rgba(255, 255, 0, 0.8)', 'rgba(253, 98, 104, 0.8)', 'rgba(255, 146, 149, 0.8)', 'rgba(255, 241, 193, 0.8)', 'rgba(110, 176, 253, 0.8)', 'rgba(52, 139, 251, 0.8)', 'rgba(17, 102, 252, 0.8)'];
- var splitNum = Number((max - min) / 7);
- // console.log(splitNum)
- max = Number(max);
- var index = Number(min);
- this.splitList = [];
- var count = 0;
- while (index < max) {
- this.splitList.push({
- start: index,
- end: index + splitNum,
- value: colors[count]
- });
- count++;
- index += splitNum;
- // console.log(index, max)
- }
- // console.log('splitNum')
- };
- Choropleth.prototype.getLegend = function (options) {
- var splitList = this.splitList;
- };
- /**
- * @author Mofei<http://www.zhuwenlong.com>
- */
- var MapHelper = function () {
- function MapHelper(id, type, opt) {
- classCallCheck(this, MapHelper);
- if (!id || !type) {
- console.warn('id 和 type 为必填项');
- return false;
- }
- if (type == 'baidu') {
- if (!BMap) {
- console.warn('请先引入百度地图JS API');
- return false;
- }
- } else {
- console.warn('暂不支持你的地图类型');
- }
- this.type = type;
- var center = opt && opt.center ? opt.center : [106.962497, 38.208726];
- var zoom = opt && opt.zoom ? opt.zoom : 5;
- var map = this.map = new BMap.Map(id, {
- enableMapClick: false
- });
- map.centerAndZoom(new BMap.Point(center[0], center[1]), zoom);
- map.enableScrollWheelZoom(true);
- map.setMapStyle({
- style: 'light'
- });
- }
- createClass(MapHelper, [{
- key: 'addLayer',
- value: function addLayer(datas, options) {
- if (this.type == 'baidu') {
- return new mapv.baiduMapLayer(this.map, dataSet, options);
- }
- }
- }, {
- key: 'getMap',
- value: function getMap() {
- return this.map;
- }
- }]);
- return MapHelper;
- }();
- // function MapHelper(dom, type, opt) {
- // var map = new BMap.Map(dom, {
- // enableMapClick: false
- // });
- // map.centerAndZoom(new BMap.Point(106.962497, 38.208726), 5);
- // map.enableScrollWheelZoom(true);
- // map.setMapStyle({
- // style: 'light'
- // });
- // }
- /**
- * 一直覆盖在当前地图视野的Canvas对象
- *
- * @author nikai (@胖嘟嘟的骨头, nikai@baidu.com)
- *
- * @param
- * {
- * map 地图实例对象
- * }
- */
- function CanvasLayer(options) {
- this.options = options || {};
- this.paneName = this.options.paneName || 'mapPane';
- this.context = this.options.context || '2d';
- this.zIndex = this.options.zIndex || 0;
- this.mixBlendMode = this.options.mixBlendMode || null;
- this.enableMassClear = this.options.enableMassClear;
- this._map = options.map;
- this._lastDrawTime = null;
- this.show();
- }
- var global$3 = typeof window === 'undefined' ? {} : window;
- if (global$3.BMap) {
- CanvasLayer.prototype = new BMap.Overlay();
- CanvasLayer.prototype.initialize = function (map) {
- this._map = map;
- var canvas = this.canvas = document.createElement("canvas");
- canvas.style.cssText = "position:absolute;" + "left:0;" + "top:0;" + "z-index:" + this.zIndex + ";user-select:none;";
- canvas.style.mixBlendMode = this.mixBlendMode;
- this.adjustSize();
- map.getPanes()[this.paneName].appendChild(canvas);
- var that = this;
- map.addEventListener('resize', function () {
- that.adjustSize();
- that._draw();
- });
- return this.canvas;
- };
- CanvasLayer.prototype.adjustSize = function () {
- var size = this._map.getSize();
- var canvas = this.canvas;
- var devicePixelRatio = this.devicePixelRatio = global$3.devicePixelRatio || 1;
- canvas.width = size.width * devicePixelRatio;
- canvas.height = size.height * devicePixelRatio;
- if (this.context == '2d') {
- canvas.getContext(this.context).scale(devicePixelRatio, devicePixelRatio);
- }
- canvas.style.width = size.width + "px";
- canvas.style.height = size.height + "px";
- };
- CanvasLayer.prototype.draw = function () {
- var self = this;
- clearTimeout(self.timeoutID);
- self.timeoutID = setTimeout(function () {
- self._draw();
- }, 15);
- };
- CanvasLayer.prototype._draw = function () {
- var map = this._map;
- var size = map.getSize();
- var center = map.getCenter();
- if (center) {
- var pixel = map.pointToOverlayPixel(center);
- this.canvas.style.left = pixel.x - size.width / 2 + 'px';
- this.canvas.style.top = pixel.y - size.height / 2 + 'px';
- this.dispatchEvent('draw');
- this.options.update && this.options.update.call(this);
- }
- };
- CanvasLayer.prototype.getContainer = function () {
- return this.canvas;
- };
- CanvasLayer.prototype.show = function () {
- if (!this.canvas) {
- this._map.addOverlay(this);
- }
- this.canvas.style.display = "block";
- };
- CanvasLayer.prototype.hide = function () {
- this.canvas.style.display = "none";
- //this._map.removeOverlay(this);
- };
- CanvasLayer.prototype.setZIndex = function (zIndex) {
- this.zIndex = zIndex;
- this.canvas.style.zIndex = this.zIndex;
- };
- CanvasLayer.prototype.getZIndex = function () {
- return this.zIndex;
- };
- }
- /**
- * Tween.js - Licensed under the MIT license
- * https://github.com/tweenjs/tween.js
- * ----------------------------------------------
- *
- * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
- * Thank you all, you're awesome!
- */
- var TWEEN = TWEEN || function () {
- var _tweens = [];
- return {
- getAll: function getAll() {
- return _tweens;
- },
- removeAll: function removeAll() {
- _tweens = [];
- },
- add: function add(tween) {
- _tweens.push(tween);
- },
- remove: function remove(tween) {
- var i = _tweens.indexOf(tween);
- if (i !== -1) {
- _tweens.splice(i, 1);
- }
- },
- update: function update(time, preserve) {
- if (_tweens.length === 0) {
- return false;
- }
- var i = 0;
- time = time !== undefined ? time : TWEEN.now();
- while (i < _tweens.length) {
- if (_tweens[i].update(time) || preserve) {
- i++;
- } else {
- _tweens.splice(i, 1);
- }
- }
- return true;
- }
- };
- }();
- // Include a performance.now polyfill.
- // In node.js, use process.hrtime.
- if (typeof window === 'undefined' && typeof process !== 'undefined') {
- TWEEN.now = function () {
- var time = process.hrtime();
- // Convert [seconds, nanoseconds] to milliseconds.
- return time[0] * 1000 + time[1] / 1000000;
- };
- }
- // In a browser, use window.performance.now if it is available.
- else if (typeof window !== 'undefined' && window.performance !== undefined && window.performance.now !== undefined) {
- // This must be bound, because directly assigning this function
- // leads to an invocation exception in Chrome.
- TWEEN.now = window.performance.now.bind(window.performance);
- }
- // Use Date.now if it is available.
- else if (Date.now !== undefined) {
- TWEEN.now = Date.now;
- }
- // Otherwise, use 'new Date().getTime()'.
- else {
- TWEEN.now = function () {
- return new Date().getTime();
- };
- }
- TWEEN.Tween = function (object) {
- var _object = object;
- var _valuesStart = {};
- var _valuesEnd = {};
- var _valuesStartRepeat = {};
- var _duration = 1000;
- var _repeat = 0;
- var _repeatDelayTime;
- var _yoyo = false;
- var _isPlaying = false;
- var _reversed = false;
- var _delayTime = 0;
- var _startTime = null;
- var _easingFunction = TWEEN.Easing.Linear.None;
- var _interpolationFunction = TWEEN.Interpolation.Linear;
- var _chainedTweens = [];
- var _onStartCallback = null;
- var _onStartCallbackFired = false;
- var _onUpdateCallback = null;
- var _onCompleteCallback = null;
- var _onStopCallback = null;
- this.to = function (properties, duration) {
- _valuesEnd = properties;
- if (duration !== undefined) {
- _duration = duration;
- }
- return this;
- };
- this.start = function (time) {
- TWEEN.add(this);
- _isPlaying = true;
- _onStartCallbackFired = false;
- _startTime = time !== undefined ? time : TWEEN.now();
- _startTime += _delayTime;
- for (var property in _valuesEnd) {
- // Check if an Array was provided as property value
- if (_valuesEnd[property] instanceof Array) {
- if (_valuesEnd[property].length === 0) {
- continue;
- }
- // Create a local copy of the Array with the start value at the front
- _valuesEnd[property] = [_object[property]].concat(_valuesEnd[property]);
- }
- // If `to()` specifies a property that doesn't exist in the source object,
- // we should not set that property in the object
- if (_object[property] === undefined) {
- continue;
- }
- // Save the starting value.
- _valuesStart[property] = _object[property];
- if (_valuesStart[property] instanceof Array === false) {
- _valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings
- }
- _valuesStartRepeat[property] = _valuesStart[property] || 0;
- }
- return this;
- };
- this.stop = function () {
- if (!_isPlaying) {
- return this;
- }
- TWEEN.remove(this);
- _isPlaying = false;
- if (_onStopCallback !== null) {
- _onStopCallback.call(_object, _object);
- }
- this.stopChainedTweens();
- return this;
- };
- this.end = function () {
- this.update(_startTime + _duration);
- return this;
- };
- this.stopChainedTweens = function () {
- for (var i = 0, numChainedTweens = _chainedTweens.length; i < numChainedTweens; i++) {
- _chainedTweens[i].stop();
- }
- };
- this.delay = function (amount) {
- _delayTime = amount;
- return this;
- };
- this.repeat = function (times) {
- _repeat = times;
- return this;
- };
- this.repeatDelay = function (amount) {
- _repeatDelayTime = amount;
- return this;
- };
- this.yoyo = function (yoyo) {
- _yoyo = yoyo;
- return this;
- };
- this.easing = function (easing) {
- _easingFunction = easing;
- return this;
- };
- this.interpolation = function (interpolation) {
- _interpolationFunction = interpolation;
- return this;
- };
- this.chain = function () {
- _chainedTweens = arguments;
- return this;
- };
- this.onStart = function (callback) {
- _onStartCallback = callback;
- return this;
- };
- this.onUpdate = function (callback) {
- _onUpdateCallback = callback;
- return this;
- };
- this.onComplete = function (callback) {
- _onCompleteCallback = callback;
- return this;
- };
- this.onStop = function (callback) {
- _onStopCallback = callback;
- return this;
- };
- this.update = function (time) {
- var property;
- var elapsed;
- var value;
- if (time < _startTime) {
- return true;
- }
- if (_onStartCallbackFired === false) {
- if (_onStartCallback !== null) {
- _onStartCallback.call(_object, _object);
- }
- _onStartCallbackFired = true;
- }
- elapsed = (time - _startTime) / _duration;
- elapsed = elapsed > 1 ? 1 : elapsed;
- value = _easingFunction(elapsed);
- for (property in _valuesEnd) {
- // Don't update properties that do not exist in the source object
- if (_valuesStart[property] === undefined) {
- continue;
- }
- var start = _valuesStart[property] || 0;
- var end = _valuesEnd[property];
- if (end instanceof Array) {
- _object[property] = _interpolationFunction(end, value);
- } else {
- // Parses relative end values with start as base (e.g.: +10, -3)
- if (typeof end === 'string') {
- if (end.charAt(0) === '+' || end.charAt(0) === '-') {
- end = start + parseFloat(end);
- } else {
- end = parseFloat(end);
- }
- }
- // Protect against non numeric properties.
- if (typeof end === 'number') {
- _object[property] = start + (end - start) * value;
- }
- }
- }
- if (_onUpdateCallback !== null) {
- _onUpdateCallback.call(_object, value);
- }
- if (elapsed === 1) {
- if (_repeat > 0) {
- if (isFinite(_repeat)) {
- _repeat--;
- }
- // Reassign starting values, restart by making startTime = now
- for (property in _valuesStartRepeat) {
- if (typeof _valuesEnd[property] === 'string') {
- _valuesStartRepeat[property] = _valuesStartRepeat[property] + parseFloat(_valuesEnd[property]);
- }
- if (_yoyo) {
- var tmp = _valuesStartRepeat[property];
- _valuesStartRepeat[property] = _valuesEnd[property];
- _valuesEnd[property] = tmp;
- }
- _valuesStart[property] = _valuesStartRepeat[property];
- }
- if (_yoyo) {
- _reversed = !_reversed;
- }
- if (_repeatDelayTime !== undefined) {
- _startTime = time + _repeatDelayTime;
- } else {
- _startTime = time + _delayTime;
- }
- return true;
- } else {
- if (_onCompleteCallback !== null) {
- _onCompleteCallback.call(_object, _object);
- }
- for (var i = 0, numChainedTweens = _chainedTweens.length; i < numChainedTweens; i++) {
- // Make the chained tweens start exactly at the time they should,
- // even if the `update()` method was called way past the duration of the tween
- _chainedTweens[i].start(_startTime + _duration);
- }
- return false;
- }
- }
- return true;
- };
- };
- TWEEN.Easing = {
- Linear: {
- None: function None(k) {
- return k;
- }
- },
- Quadratic: {
- In: function In(k) {
- return k * k;
- },
- Out: function Out(k) {
- return k * (2 - k);
- },
- InOut: function InOut(k) {
- if ((k *= 2) < 1) {
- return 0.5 * k * k;
- }
- return -0.5 * (--k * (k - 2) - 1);
- }
- },
- Cubic: {
- In: function In(k) {
- return k * k * k;
- },
- Out: function Out(k) {
- return --k * k * k + 1;
- },
- InOut: function InOut(k) {
- if ((k *= 2) < 1) {
- return 0.5 * k * k * k;
- }
- return 0.5 * ((k -= 2) * k * k + 2);
- }
- },
- Quartic: {
- In: function In(k) {
- return k * k * k * k;
- },
- Out: function Out(k) {
- return 1 - --k * k * k * k;
- },
- InOut: function InOut(k) {
- if ((k *= 2) < 1) {
- return 0.5 * k * k * k * k;
- }
- return -0.5 * ((k -= 2) * k * k * k - 2);
- }
- },
- Quintic: {
- In: function In(k) {
- return k * k * k * k * k;
- },
- Out: function Out(k) {
- return --k * k * k * k * k + 1;
- },
- InOut: function InOut(k) {
- if ((k *= 2) < 1) {
- return 0.5 * k * k * k * k * k;
- }
- return 0.5 * ((k -= 2) * k * k * k * k + 2);
- }
- },
- Sinusoidal: {
- In: function In(k) {
- return 1 - Math.cos(k * Math.PI / 2);
- },
- Out: function Out(k) {
- return Math.sin(k * Math.PI / 2);
- },
- InOut: function InOut(k) {
- return 0.5 * (1 - Math.cos(Math.PI * k));
- }
- },
- Exponential: {
- In: function In(k) {
- return k === 0 ? 0 : Math.pow(1024, k - 1);
- },
- Out: function Out(k) {
- return k === 1 ? 1 : 1 - Math.pow(2, -10 * k);
- },
- InOut: function InOut(k) {
- if (k === 0) {
- return 0;
- }
- if (k === 1) {
- return 1;
- }
- if ((k *= 2) < 1) {
- return 0.5 * Math.pow(1024, k - 1);
- }
- return 0.5 * (-Math.pow(2, -10 * (k - 1)) + 2);
- }
- },
- Circular: {
- In: function In(k) {
- return 1 - Math.sqrt(1 - k * k);
- },
- Out: function Out(k) {
- return Math.sqrt(1 - --k * k);
- },
- InOut: function InOut(k) {
- if ((k *= 2) < 1) {
- return -0.5 * (Math.sqrt(1 - k * k) - 1);
- }
- return 0.5 * (Math.sqrt(1 - (k -= 2) * k) + 1);
- }
- },
- Elastic: {
- In: function In(k) {
- if (k === 0) {
- return 0;
- }
- if (k === 1) {
- return 1;
- }
- return -Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);
- },
- Out: function Out(k) {
- if (k === 0) {
- return 0;
- }
- if (k === 1) {
- return 1;
- }
- return Math.pow(2, -10 * k) * Math.sin((k - 0.1) * 5 * Math.PI) + 1;
- },
- InOut: function InOut(k) {
- if (k === 0) {
- return 0;
- }
- if (k === 1) {
- return 1;
- }
- k *= 2;
- if (k < 1) {
- return -0.5 * Math.pow(2, 10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI);
- }
- return 0.5 * Math.pow(2, -10 * (k - 1)) * Math.sin((k - 1.1) * 5 * Math.PI) + 1;
- }
- },
- Back: {
- In: function In(k) {
- var s = 1.70158;
- return k * k * ((s + 1) * k - s);
- },
- Out: function Out(k) {
- var s = 1.70158;
- return --k * k * ((s + 1) * k + s) + 1;
- },
- InOut: function InOut(k) {
- var s = 1.70158 * 1.525;
- if ((k *= 2) < 1) {
- return 0.5 * (k * k * ((s + 1) * k - s));
- }
- return 0.5 * ((k -= 2) * k * ((s + 1) * k + s) + 2);
- }
- },
- Bounce: {
- In: function In(k) {
- return 1 - TWEEN.Easing.Bounce.Out(1 - k);
- },
- Out: function Out(k) {
- if (k < 1 / 2.75) {
- return 7.5625 * k * k;
- } else if (k < 2 / 2.75) {
- return 7.5625 * (k -= 1.5 / 2.75) * k + 0.75;
- } else if (k < 2.5 / 2.75) {
- return 7.5625 * (k -= 2.25 / 2.75) * k + 0.9375;
- } else {
- return 7.5625 * (k -= 2.625 / 2.75) * k + 0.984375;
- }
- },
- InOut: function InOut(k) {
- if (k < 0.5) {
- return TWEEN.Easing.Bounce.In(k * 2) * 0.5;
- }
- return TWEEN.Easing.Bounce.Out(k * 2 - 1) * 0.5 + 0.5;
- }
- }
- };
- TWEEN.Interpolation = {
- Linear: function Linear(v, k) {
- var m = v.length - 1;
- var f = m * k;
- var i = Math.floor(f);
- var fn = TWEEN.Interpolation.Utils.Linear;
- if (k < 0) {
- return fn(v[0], v[1], f);
- }
- if (k > 1) {
- return fn(v[m], v[m - 1], m - f);
- }
- return fn(v[i], v[i + 1 > m ? m : i + 1], f - i);
- },
- Bezier: function Bezier(v, k) {
- var b = 0;
- var n = v.length - 1;
- var pw = Math.pow;
- var bn = TWEEN.Interpolation.Utils.Bernstein;
- for (var i = 0; i <= n; i++) {
- b += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);
- }
- return b;
- },
- CatmullRom: function CatmullRom(v, k) {
- var m = v.length - 1;
- var f = m * k;
- var i = Math.floor(f);
- var fn = TWEEN.Interpolation.Utils.CatmullRom;
- if (v[0] === v[m]) {
- if (k < 0) {
- i = Math.floor(f = m * (1 + k));
- }
- return fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);
- } else {
- if (k < 0) {
- return v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);
- }
- if (k > 1) {
- return v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);
- }
- return fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);
- }
- },
- Utils: {
- Linear: function Linear(p0, p1, t) {
- return (p1 - p0) * t + p0;
- },
- Bernstein: function Bernstein(n, i) {
- var fc = TWEEN.Interpolation.Utils.Factorial;
- return fc(n) / fc(i) / fc(n - i);
- },
- Factorial: function () {
- var a = [1];
- return function (n) {
- var s = 1;
- if (a[n]) {
- return a[n];
- }
- for (var i = n; i > 1; i--) {
- s *= i;
- }
- a[n] = s;
- return s;
- };
- }(),
- CatmullRom: function CatmullRom(p0, p1, p2, p3, t) {
- var v0 = (p2 - p0) * 0.5;
- var v1 = (p3 - p1) * 0.5;
- var t2 = t * t;
- var t3 = t * t2;
- return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
- }
- }
- };
- /**
- * 根据2点获取角度
- * @param Array [123, 23] 点1
- * @param Array [123, 23] 点2
- * @return angle 角度,不是弧度
- */
- function getAngle(start, end) {
- var diff_x = end[0] - start[0];
- var diff_y = end[1] - start[1];
- var deg = 360 * Math.atan(diff_y / diff_x) / (2 * Math.PI);
- if (end[0] < start[0]) {
- deg = deg + 180;
- }
- return deg;
- }
- /**
- * 绘制沿线箭头
- * @author kyle / http://nikai.us/
- */
- var imageCache = {};
- var object = {
- draw: function draw(context, dataSet, options) {
- var imageCacheKey = 'http://huiyan.baidu.com/github/tools/gis-drawing/static/images/direction.png';
- if (options.arrow && options.arrow.url) {
- imageCacheKey = options.arrow.url;
- }
- if (!imageCache[imageCacheKey]) {
- imageCache[imageCacheKey] = null;
- }
- var directionImage = imageCache[imageCacheKey];
- if (!directionImage) {
- var args = Array.prototype.slice.call(arguments);
- var image = new Image();
- image.onload = function () {
- imageCache[imageCacheKey] = image;
- object.draw.apply(null, args);
- };
- image.src = imageCacheKey;
- return;
- }
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- // console.log('xxxx',options)
- context.save();
- for (var key in options) {
- context[key] = options[key];
- }
- var points = [];
- var preCoordinate = null;
- for (var i = 0, len = data.length; i < len; i++) {
- var item = data[i];
- context.save();
- if (item.fillStyle || item._fillStyle) {
- context.fillStyle = item.fillStyle || item._fillStyle;
- }
- if (item.strokeStyle || item._strokeStyle) {
- context.strokeStyle = item.strokeStyle || item._strokeStyle;
- }
- var type = item.geometry.type;
- context.beginPath();
- if (type === 'LineString') {
- var coordinates = item.geometry._coordinates || item.geometry.coordinates;
- var interval = options.arrow.interval !== undefined ? options.arrow.interval : 1;
- for (var j = 0; j < coordinates.length; j += interval) {
- if (coordinates[j] && coordinates[j + 1]) {
- var coordinate = coordinates[j];
- if (preCoordinate && getDistance(coordinate, preCoordinate) < 30) {
- continue;
- }
- context.save();
- var angle = getAngle(coordinates[j], coordinates[j + 1]);
- context.translate(coordinate[0], coordinate[1]);
- context.rotate(angle * Math.PI / 180);
- context.drawImage(directionImage, -directionImage.width / 2 / devicePixelRatio, -directionImage.height / 2 / devicePixelRatio, directionImage.width / devicePixelRatio, directionImage.height / devicePixelRatio);
- context.restore();
- points.push(coordinate);
- preCoordinate = coordinate;
- }
- }
- }
- context.restore();
- }
- context.restore();
- }
- };
- function getDistance(coordinateA, coordinateB) {
- return Math.sqrt(Math.pow(coordinateA[0] - coordinateB[0], 2) + Math.pow(coordinateA[1] - coordinateB[1], 2));
- }
- /**
- * @author Mofei Zhu<mapv@zhuwenlong.com>
- * This file is to draw text
- */
- var drawText = {
- draw: function draw(context, dataSet, options) {
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- context.save();
- // set from options
- for (var key in options) {
- context[key] = options[key];
- }
- var offset = options.offset || {
- x: 0,
- y: 0
- };
- var rects = [];
- var size = options._size || options.size;
- if (size) {
- context.font = "bold " + size + "px Arial";
- } else {
- size = 12;
- }
- var textKey = options.textKey || 'text';
- if (!options.textAlign) {
- context.textAlign = 'center';
- }
- if (!options.textBaseline) {
- context.textBaseline = 'middle';
- }
- if (options.avoid) {
- // 标注避让
- for (var i = 0, len = data.length; i < len; i++) {
- var coordinates = data[i].geometry._coordinates || data[i].geometry.coordinates;
- var x = coordinates[0] + offset.x;
- var y = coordinates[1] + offset.y;
- var text = data[i][textKey];
- var textWidth = context.measureText(text).width;
- // 根据文本宽度和高度调整x,y位置,使得绘制文本时候坐标点在文本中心点,这个计算出的是左上角坐标
- var px = x - textWidth / 2;
- var py = y - size / 2;
- var rect = {
- sw: {
- x: px,
- y: py + size
- },
- ne: {
- x: px + textWidth,
- y: py
- }
- };
- if (!hasOverlay(rects, rect)) {
- rects.push(rect);
- px = px + textWidth / 2;
- py = py + size / 2;
- context.fillText(text, px, py);
- }
- }
- } else {
- for (var i = 0, len = data.length; i < len; i++) {
- var coordinates = data[i].geometry._coordinates || data[i].geometry.coordinates;
- var x = coordinates[0] + offset.x;
- var y = coordinates[1] + offset.y;
- var text = data[i][textKey];
- context.fillText(text, x, y);
- }
- }
- context.restore();
- }
- /*
- * 当前文字区域和已有的文字区域是否有重叠部分
- */
- };function hasOverlay(rects, overlay) {
- for (var i = 0; i < rects.length; i++) {
- if (isRectOverlay(rects[i], overlay)) {
- return true;
- }
- }
- return false;
- }
- //判断2个矩形是否有重叠部分
- function isRectOverlay(rect1, rect2) {
- //minx、miny 2个矩形右下角最小的x和y
- //maxx、maxy 2个矩形左上角最大的x和y
- var minx = Math.min(rect1.ne.x, rect2.ne.x);
- var miny = Math.min(rect1.sw.y, rect2.sw.y);
- var maxx = Math.max(rect1.sw.x, rect2.sw.x);
- var maxy = Math.max(rect1.ne.y, rect2.ne.y);
- if (minx > maxx && miny > maxy) {
- return true;
- }
- return false;
- }
- /**
- * @author Mofei Zhu<mapv@zhuwenlong.com>
- * This file is to draw text
- */
- var drawIcon = {
- draw: function draw(context, dataSet, options) {
- var data = dataSet instanceof DataSet ? dataSet.get() : dataSet;
- context.fillStyle = 'white';
- context.textAlign = 'center';
- context.textBaseline = 'middle';
- var offset = options.offset || {
- x: 0,
- y: 0
- };
- // set from options
- // for (var key in options) {
- // context[key] = options[key];
- // }
- // console.log(data)
- for (var i = 0, len = data.length; i < len; i++) {
- if (data[i].geometry) {
- var deg = data[i].deg || options.deg;
- var icon = data[i].icon || options.icon;
- var coordinates = data[i].geometry._coordinates || data[i].geometry.coordinates;
- var x = coordinates[0];
- var y = coordinates[1];
- if (deg) {
- context.save();
- context.translate(x, y);
- context.rotate(deg * Math.PI / 180);
- context.translate(-x, -y);
- }
- var width = options._width || options.width || icon.width;
- var height = options._height || options.height || icon.height;
- x = x - width / 2 + offset.x;
- y = y - height / 2 + offset.y;
- if (options.sx && options.sy && options.swidth && options.sheight && options.width && options.height) {
- context.drawImage(icon, options.sx, options.sy, options.swidth, options.sheight, x, y, width, height);
- } else if (options.width && options.height) {
- context.drawImage(icon, x, y, width, height);
- } else {
- context.drawImage(icon, x, y);
- }
- if (deg) {
- context.restore();
- }
- }
- }
- }
- };
- /**
- * @author kyle / http://nikai.us/
- */
- if (typeof window !== 'undefined') {
- requestAnimationFrame(animate);
- }
- function animate(time) {
- requestAnimationFrame(animate);
- TWEEN.update(time);
- }
- var BaseLayer = function () {
- function BaseLayer(map, dataSet, options) {
- classCallCheck(this, BaseLayer);
- if (!(dataSet instanceof DataSet)) {
- dataSet = new DataSet(dataSet);
- }
- this.dataSet = dataSet;
- this.map = map;
- }
- createClass(BaseLayer, [{
- key: "getDefaultContextConfig",
- value: function getDefaultContextConfig() {
- return {
- globalAlpha: 1,
- globalCompositeOperation: 'source-over',
- imageSmoothingEnabled: true,
- strokeStyle: '#000000',
- fillStyle: '#000000',
- shadowOffsetX: 0,
- shadowOffsetY: 0,
- shadowBlur: 0,
- shadowColor: 'rgba(0, 0, 0, 0)',
- lineWidth: 1,
- lineCap: 'butt',
- lineJoin: 'miter',
- miterLimit: 10,
- lineDashOffset: 0,
- font: '10px sans-serif',
- textAlign: 'start',
- textBaseline: 'alphabetic'
- };
- }
- }, {
- key: "initDataRange",
- value: function initDataRange(options) {
- var self = this;
- self.intensity = new Intensity({
- maxSize: self.options.maxSize,
- minSize: self.options.minSize,
- gradient: self.options.gradient,
- max: self.options.max || this.dataSet.getMax('count')
- });
- self.category = new Category(self.options.splitList);
- self.choropleth = new Choropleth(self.options.splitList);
- if (self.options.splitList === undefined) {
- self.category.generateByDataSet(this.dataSet, self.options.color);
- }
- if (self.options.splitList === undefined) {
- var min = self.options.min || this.dataSet.getMin('count');
- var max = self.options.max || this.dataSet.getMax('count');
- self.choropleth.generateByMinMax(min, max);
- }
- }
- }, {
- key: "getLegend",
- value: function getLegend(options) {
- var draw = this.options.draw;
- var legend = null;
- var self = this;
- if (self.options.draw == 'intensity' || self.options.draw == 'heatmap') {
- return this.intensity.getLegend(options);
- } else if (self.options.draw == 'category') {
- return this.category.getLegend(options);
- }
- }
- }, {
- key: "processData",
- value: function processData(data) {
- var self = this;
- var draw = self.options.draw;
- if (draw == 'bubble' || draw == 'intensity' || draw == 'category' || draw == 'choropleth' || draw == 'simple') {
- for (var i = 0; i < data.length; i++) {
- var item = data[i];
- if (self.options.draw == 'bubble') {
- data[i]._size = self.intensity.getSize(item.count);
- } else {
- data[i]._size = undefined;
- }
- var styleType = '_fillStyle';
- if (data[i].geometry.type === 'LineString' || self.options.styleType === 'stroke') {
- styleType = '_strokeStyle';
- }
- if (self.options.draw == 'intensity') {
- data[i][styleType] = self.intensity.getColor(item.count);
- } else if (self.options.draw == 'category') {
- data[i][styleType] = self.category.get(item.count);
- } else if (self.options.draw == 'choropleth') {
- data[i][styleType] = self.choropleth.get(item.count);
- }
- }
- }
- }
- }, {
- key: "isEnabledTime",
- value: function isEnabledTime() {
- var animationOptions = this.options.animation;
- var flag = animationOptions && !(animationOptions.enabled === false);
- return flag;
- }
- }, {
- key: "argCheck",
- value: function argCheck(options) {
- if (options.draw == 'heatmap') {
- if (options.strokeStyle) {
- console.warn('[heatmap] options.strokeStyle is discard, pleause use options.strength [eg: options.strength = 0.1]');
- }
- }
- }
- }, {
- key: "drawContext",
- value: function drawContext(context, dataSet, options, nwPixel) {
- var self = this;
- switch (self.options.draw) {
- case 'heatmap':
- drawHeatmap.draw(context, dataSet, self.options);
- break;
- case 'grid':
- case 'honeycomb':
- self.options.offset = {
- x: nwPixel.x,
- y: nwPixel.y
- };
- if (self.options.draw == 'grid') {
- drawGrid.draw(context, dataSet, self.options);
- } else {
- drawHoneycomb.draw(context, dataSet, self.options);
- }
- break;
- case 'text':
- drawText.draw(context, dataSet, self.options);
- break;
- case 'icon':
- drawIcon.draw(context, dataSet, self.options);
- break;
- case 'clip':
- context.save();
- context.fillStyle = self.options.fillStyle || 'rgba(0, 0, 0, 0.5)';
- context.fillRect(0, 0, context.canvas.width, context.canvas.height);
- drawSimple.draw(context, dataSet, self.options);
- context.beginPath();
- pathSimple.drawDataSet(context, dataSet, self.options);
- context.clip();
- clear(context);
- context.restore();
- break;
- default:
- if (self.options.context == "webgl") {
- webglDrawSimple.draw(self.canvasLayer.canvas.getContext('webgl'), dataSet, self.options);
- } else {
- drawSimple.draw(context, dataSet, self.options);
- }
- }
- if (self.options.arrow && self.options.arrow.show !== false) {
- object.draw(context, dataSet, self.options);
- }
- }
- }, {
- key: "isPointInPath",
- value: function isPointInPath(context, pixel) {
- var context = this.canvasLayer.canvas.getContext(this.context);
- var data = this.dataSet.get();
- for (var i = 0; i < data.length; i++) {
- context.beginPath();
- pathSimple.draw(context, data[i], this.options);
- var x = pixel.x * this.canvasLayer.devicePixelRatio;
- var y = pixel.y * this.canvasLayer.devicePixelRatio;
- if (context.isPointInPath(x, y) || context.isPointInStroke(x, y)) {
- return data[i];
- }
- }
- }
- }, {
- key: "clickEvent",
- value: function clickEvent(pixel, e) {
- var dataItem = this.isPointInPath(this.getContext(), pixel);
- if (dataItem) {
- this.options.methods.click(dataItem, e);
- } else {
- this.options.methods.click(null, e);
- }
- }
- }, {
- key: "mousemoveEvent",
- value: function mousemoveEvent(pixel, e) {
- var dataItem = this.isPointInPath(this.getContext(), pixel);
- if (dataItem) {
- this.options.methods.mousemove(dataItem, e);
- } else {
- this.options.methods.mousemove(null, e);
- }
- }
- /**
- * obj.options
- */
- }, {
- key: "update",
- value: function update(obj, isDraw) {
- var self = this;
- var _options = obj.options;
- var options = self.options;
- for (var i in _options) {
- options[i] = _options[i];
- }
- self.init(options);
- if (isDraw !== false) {
- self.draw();
- }
- }
- }, {
- key: "setOptions",
- value: function setOptions(options) {
- var self = this;
- self.dataSet.reset();
- // console.log('xxx1')
- self.init(options);
- // console.log('xxx')
- self.draw();
- }
- }, {
- key: "set",
- value: function set$$1(obj) {
- var self = this;
- var ctx = this.getContext();
- var conf = this.getDefaultContextConfig();
- for (var i in conf) {
- ctx[i] = conf[i];
- }
- self.init(obj.options);
- self.draw();
- }
- }, {
- key: "destroy",
- value: function destroy() {
- this.unbindEvent();
- this.hide();
- }
- }, {
- key: "initAnimator",
- value: function initAnimator() {
- var self = this;
- var animationOptions = self.options.animation;
- if (self.options.draw == 'time' || self.isEnabledTime()) {
- if (!animationOptions.stepsRange) {
- animationOptions.stepsRange = {
- start: this.dataSet.getMin('time') || 0,
- end: this.dataSet.getMax('time') || 0
- };
- }
- this.steps = { step: animationOptions.stepsRange.start };
- self.animator = new TWEEN.Tween(this.steps).onUpdate(function () {
- self._canvasUpdate(this.step);
- }).repeat(Infinity);
- this.addAnimatorEvent();
- var duration = animationOptions.duration * 1000 || 5000;
- self.animator.to({ step: animationOptions.stepsRange.end }, duration);
- self.animator.start();
- } else {
- self.animator && self.animator.stop();
- }
- }
- }, {
- key: "addAnimatorEvent",
- value: function addAnimatorEvent() {}
- }, {
- key: "animatorMovestartEvent",
- value: function animatorMovestartEvent() {
- var animationOptions = this.options.animation;
- if (this.isEnabledTime() && this.animator) {
- this.steps.step = animationOptions.stepsRange.start;
- this.animator.stop();
- }
- }
- }, {
- key: "animatorMoveendEvent",
- value: function animatorMoveendEvent() {
- if (this.isEnabledTime() && this.animator) {
- this.animator.start();
- }
- }
- }]);
- return BaseLayer;
- }();
- var AnimationLayer = function (_BaseLayer) {
- inherits(AnimationLayer, _BaseLayer);
- function AnimationLayer(map, dataSet, options) {
- classCallCheck(this, AnimationLayer);
- var _this = possibleConstructorReturn(this, (AnimationLayer.__proto__ || Object.getPrototypeOf(AnimationLayer)).call(this, map, dataSet, options));
- _this.map = map;
- _this.options = options || {};
- _this.dataSet = dataSet;
- var canvasLayer = new CanvasLayer({
- map: map,
- zIndex: _this.options.zIndex,
- update: _this._canvasUpdate.bind(_this)
- });
- _this.init(_this.options);
- _this.canvasLayer = canvasLayer;
- _this.transferToMercator();
- var self = _this;
- dataSet.on('change', function () {
- self.transferToMercator();
- canvasLayer.draw();
- });
- _this.ctx = canvasLayer.canvas.getContext('2d');
- _this.start();
- return _this;
- }
- createClass(AnimationLayer, [{
- key: "draw",
- value: function draw() {
- this.canvasLayer.draw();
- }
- }, {
- key: "init",
- value: function init(options) {
- var self = this;
- self.options = options;
- this.initDataRange(options);
- this.context = self.options.context || '2d';
- if (self.options.zIndex) {
- this.canvasLayer && this.canvasLayer.setZIndex(self.options.zIndex);
- }
- if (self.options.max) {
- this.intensity.setMax(self.options.max);
- }
- if (self.options.min) {
- this.intensity.setMin(self.options.min);
- }
- this.initAnimator();
- }
- // 经纬度左边转换为墨卡托坐标
- }, {
- key: "transferToMercator",
- value: function transferToMercator() {
- var projection = this.map.getMapType().getProjection();
- if (this.options.coordType !== 'bd09mc') {
- var data = this.dataSet.get();
- data = this.dataSet.transferCoordinate(data, function (coordinates) {
- var pixel = projection.lngLatToPoint({
- lng: coordinates[0],
- lat: coordinates[1]
- });
- return [pixel.x, pixel.y];
- }, 'coordinates', 'coordinates_mercator');
- this.dataSet._set(data);
- }
- }
- }, {
- key: "_canvasUpdate",
- value: function _canvasUpdate() {
- var ctx = this.ctx;
- if (!ctx) {
- return;
- }
- //clear(ctx);
- var map = this.map;
- var zoomUnit = Math.pow(2, 18 - map.getZoom());
- var projection = map.getMapType().getProjection();
- var mcCenter = projection.lngLatToPoint(map.getCenter());
- var nwMc = new BMap.Pixel(mcCenter.x - map.getSize().width / 2 * zoomUnit, mcCenter.y + map.getSize().height / 2 * zoomUnit); //左上角墨卡托坐标
- clear(ctx);
- var dataGetOptions = {
- fromColumn: this.options.coordType == 'bd09mc' ? 'coordinates' : 'coordinates_mercator',
- transferCoordinate: function transferCoordinate(coordinate) {
- if (!coordinate) {
- return;
- }
- var x = (coordinate[0] - nwMc.x) / zoomUnit;
- var y = (nwMc.y - coordinate[1]) / zoomUnit;
- return [x, y];
- }
- };
- this.data = this.dataSet.get(dataGetOptions);
- this.processData(this.data);
- this.drawAnimation();
- }
- }, {
- key: "drawAnimation",
- value: function drawAnimation() {
- var ctx = this.ctx;
- var data = this.data;
- if (!data) {
- return;
- }
- ctx.save();
- ctx.globalCompositeOperation = 'destination-out';
- ctx.fillStyle = 'rgba(0, 0, 0, .1)';
- ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height);
- ctx.restore();
- ctx.save();
- if (this.options.shadowColor) {
- ctx.shadowColor = this.options.shadowColor;
- }
- if (this.options.shadowBlur) {
- ctx.shadowBlur = this.options.shadowBlur;
- }
- if (this.options.globalAlpha) {
- ctx.globalAlpha = this.options.globalAlpha;
- }
- if (this.options.globalCompositeOperation) {
- ctx.globalCompositeOperation = this.options.globalCompositeOperation;
- }
- var options = this.options;
- for (var i = 0; i < data.length; i++) {
- if (data[i].geometry.type === 'Point') {
- ctx.beginPath();
- var maxSize = data[i].size || this.options.size;
- var minSize = data[i].minSize || this.options.minSize || 0;
- if (data[i]._size === undefined) {
- data[i]._size = minSize;
- }
- ctx.arc(data[i].geometry._coordinates[0], data[i].geometry._coordinates[1], data[i]._size, 0, Math.PI * 2, true);
- ctx.closePath();
- data[i]._size++;
- if (data[i]._size > maxSize) {
- data[i]._size = minSize;
- }
- ctx.lineWidth = 1;
- ctx.strokeStyle = data[i].strokeStyle || data[i]._strokeStyle || options.strokeStyle || 'yellow';
- ctx.stroke();
- var fillStyle = data[i].fillStyle || data[i]._fillStyle || options.fillStyle;
- if (fillStyle) {
- ctx.fillStyle = fillStyle;
- ctx.fill();
- }
- } else if (data[i].geometry.type === 'LineString') {
- ctx.beginPath();
- var size = data[i].size || this.options.size || 5;
- var minSize = data[i].minSize || this.options.minSize || 0;
- if (data[i]._index === undefined) {
- data[i]._index = 0;
- }
- var index = data[i]._index;
- ctx.arc(data[i].geometry._coordinates[index][0], data[i].geometry._coordinates[index][1], size, 0, Math.PI * 2, true);
- ctx.closePath();
- data[i]._index++;
- if (data[i]._index >= data[i].geometry._coordinates.length) {
- data[i]._index = 0;
- }
- var strokeStyle = data[i].strokeStyle || options.strokeStyle;
- var fillStyle = data[i].fillStyle || options.fillStyle || 'yellow';
- ctx.fillStyle = fillStyle;
- ctx.fill();
- if (strokeStyle && options.lineWidth) {
- ctx.lineWidth = options.lineWidth || 1;
- ctx.strokeStyle = strokeStyle;
- ctx.stroke();
- }
- }
- }
- ctx.restore();
- }
- }, {
- key: "animate",
- value: function animate() {
- this.drawAnimation();
- var animateTime = this.options.animateTime || 100;
- this.timeout = setTimeout(this.animate.bind(this), animateTime);
- }
- }, {
- key: "start",
- value: function start() {
- this.stop();
- this.animate();
- }
- }, {
- key: "stop",
- value: function stop() {
- clearTimeout(this.timeout);
- }
- }, {
- key: "unbindEvent",
- value: function unbindEvent() {}
- }, {
- key: "hide",
- value: function hide() {
- this.canvasLayer.hide();
- this.stop();
- }
- }, {
- key: "show",
- value: function show() {
- this.start();
- }
- }]);
- return AnimationLayer;
- }(BaseLayer);
- /**
- * @author kyle / http://nikai.us/
- */
- var Layer = function (_BaseLayer) {
- inherits(Layer, _BaseLayer);
- function Layer(map, dataSet, options) {
- classCallCheck(this, Layer);
- var _this = possibleConstructorReturn(this, (Layer.__proto__ || Object.getPrototypeOf(Layer)).call(this, map, dataSet, options));
- var self = _this;
- var data = null;
- options = options || {};
- _this.clickEvent = _this.clickEvent.bind(_this);
- _this.mousemoveEvent = _this.mousemoveEvent.bind(_this);
- self.init(options);
- self.argCheck(options);
- self.transferToMercator();
- var canvasLayer = _this.canvasLayer = new CanvasLayer({
- map: map,
- context: _this.context,
- paneName: options.paneName,
- mixBlendMode: options.mixBlendMode,
- enableMassClear: options.enableMassClear,
- zIndex: options.zIndex,
- update: function update() {
- self._canvasUpdate();
- }
- });
- dataSet.on('change', function () {
- self.transferToMercator();
- canvasLayer.draw();
- });
- return _this;
- }
- createClass(Layer, [{
- key: "clickEvent",
- value: function clickEvent(e) {
- var pixel = e.pixel;
- get(Layer.prototype.__proto__ || Object.getPrototypeOf(Layer.prototype), "clickEvent", this).call(this, pixel, e);
- }
- }, {
- key: "mousemoveEvent",
- value: function mousemoveEvent(e) {
- var pixel = e.pixel;
- get(Layer.prototype.__proto__ || Object.getPrototypeOf(Layer.prototype), "mousemoveEvent", this).call(this, pixel, e);
- }
- }, {
- key: "bindEvent",
- value: function bindEvent(e) {
- this.unbindEvent();
- var map = this.map;
- if (this.options.methods) {
- if (this.options.methods.click) {
- map.setDefaultCursor("default");
- map.addEventListener('click', this.clickEvent);
- }
- if (this.options.methods.mousemove) {
- map.addEventListener('mousemove', this.mousemoveEvent);
- }
- }
- }
- }, {
- key: "unbindEvent",
- value: function unbindEvent(e) {
- var map = this.map;
- if (this.options.methods) {
- if (this.options.methods.click) {
- map.removeEventListener('click', this.clickEvent);
- }
- if (this.options.methods.mousemove) {
- map.removeEventListener('mousemove', this.mousemoveEvent);
- }
- }
- }
- // 经纬度左边转换为墨卡托坐标
- }, {
- key: "transferToMercator",
- value: function transferToMercator() {
- var projection = this.map.getMapType().getProjection();
- if (this.options.coordType !== 'bd09mc') {
- var data = this.dataSet.get();
- data = this.dataSet.transferCoordinate(data, function (coordinates) {
- var pixel = projection.lngLatToPoint({
- lng: coordinates[0],
- lat: coordinates[1]
- });
- return [pixel.x, pixel.y];
- }, 'coordinates', 'coordinates_mercator');
- this.dataSet._set(data);
- }
- }
- }, {
- key: "getContext",
- value: function getContext() {
- return this.canvasLayer.canvas.getContext(this.context);
- }
- }, {
- key: "_canvasUpdate",
- value: function _canvasUpdate(time) {
- if (!this.canvasLayer) {
- return;
- }
- var self = this;
- var animationOptions = self.options.animation;
- var map = this.canvasLayer._map;
- var zoomUnit = Math.pow(2, 18 - map.getZoom());
- var projection = map.getMapType().getProjection();
- var mcCenter = projection.lngLatToPoint(map.getCenter());
- var nwMc = new BMap.Pixel(mcCenter.x - map.getSize().width / 2 * zoomUnit, mcCenter.y + map.getSize().height / 2 * zoomUnit); //左上角墨卡托坐标
- var context = this.getContext();
- if (self.isEnabledTime()) {
- if (time === undefined) {
- clear(context);
- return;
- }
- if (this.context == '2d') {
- context.save();
- context.globalCompositeOperation = 'destination-out';
- context.fillStyle = 'rgba(0, 0, 0, .1)';
- context.fillRect(0, 0, context.canvas.width, context.canvas.height);
- context.restore();
- }
- } else {
- clear(context);
- }
- if (this.context == '2d') {
- for (var key in self.options) {
- context[key] = self.options[key];
- }
- } else {
- context.clear(context.COLOR_BUFFER_BIT);
- }
- if (self.options.minZoom && map.getZoom() < self.options.minZoom || self.options.maxZoom && map.getZoom() > self.options.maxZoom) {
- return;
- }
- var scale = 1;
- if (this.context != '2d') {
- scale = this.canvasLayer.devicePixelRatio;
- }
- var dataGetOptions = {
- fromColumn: self.options.coordType == 'bd09mc' ? 'coordinates' : 'coordinates_mercator',
- transferCoordinate: function transferCoordinate(coordinate) {
- var x = (coordinate[0] - nwMc.x) / zoomUnit * scale;
- var y = (nwMc.y - coordinate[1]) / zoomUnit * scale;
- return [x, y];
- }
- };
- if (time !== undefined) {
- dataGetOptions.filter = function (item) {
- var trails = animationOptions.trails || 10;
- if (time && item.time > time - trails && item.time < time) {
- return true;
- } else {
- return false;
- }
- };
- }
- // get data from data set
- var data = self.dataSet.get(dataGetOptions);
- this.processData(data);
- var nwPixel = map.pointToPixel(new BMap.Point(0, 0));
- if (self.options.unit == 'm') {
- if (self.options.size) {
- self.options._size = self.options.size / zoomUnit;
- }
- if (self.options.width) {
- self.options._width = self.options.width / zoomUnit;
- }
- if (self.options.height) {
- self.options._height = self.options.height / zoomUnit;
- }
- } else {
- self.options._size = self.options.size;
- self.options._height = self.options.height;
- self.options._width = self.options.width;
- }
- this.drawContext(context, data, self.options, nwPixel);
- //console.timeEnd('draw');
- //console.timeEnd('update')
- self.options.updateCallback && self.options.updateCallback(time);
- }
- }, {
- key: "init",
- value: function init(options) {
- var self = this;
- self.options = options;
- this.initDataRange(options);
- this.context = self.options.context || '2d';
- if (self.options.zIndex) {
- this.canvasLayer && this.canvasLayer.setZIndex(self.options.zIndex);
- }
- if (self.options.max) {
- this.intensity.setMax(self.options.max);
- }
- if (self.options.min) {
- this.intensity.setMin(self.options.min);
- }
- this.initAnimator();
- this.bindEvent();
- }
- }, {
- key: "addAnimatorEvent",
- value: function addAnimatorEvent() {
- this.map.addEventListener('movestart', this.animatorMovestartEvent.bind(this));
- this.map.addEventListener('moveend', this.animatorMoveendEvent.bind(this));
- }
- }, {
- key: "show",
- value: function show() {
- this.map.addOverlay(this.canvasLayer);
- }
- }, {
- key: "hide",
- value: function hide() {
- this.map.removeOverlay(this.canvasLayer);
- }
- }, {
- key: "draw",
- value: function draw() {
- this.canvasLayer.draw();
- }
- }]);
- return Layer;
- }(BaseLayer);
- /**
- * Copyright 2012 Google Inc. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- /**
- * @fileoverview Extends OverlayView to provide a canvas "Layer".
- * @author Brendan Kenny
- */
- /**
- * A map layer that provides a canvas over the slippy map and a callback
- * system for efficient animation. Requires canvas and CSS 2D transform
- * support.
- * @constructor
- * @extends google.maps.OverlayView
- * @param {CanvasLayerOptions=} opt_options Options to set in this CanvasLayer.
- */
- function CanvasLayer$2(opt_options) {
- /**
- * If true, canvas is in a map pane and the OverlayView is fully functional.
- * See google.maps.OverlayView.onAdd for more information.
- * @type {boolean}
- * @private
- */
- this.isAdded_ = false;
- /**
- * If true, each update will immediately schedule the next.
- * @type {boolean}
- * @private
- */
- this.isAnimated_ = false;
- /**
- * The name of the MapPane in which this layer will be displayed.
- * @type {string}
- * @private
- */
- this.paneName_ = CanvasLayer$2.DEFAULT_PANE_NAME_;
- /**
- * A user-supplied function called whenever an update is required. Null or
- * undefined if a callback is not provided.
- * @type {?function=}
- * @private
- */
- this.updateHandler_ = null;
- /**
- * A user-supplied function called whenever an update is required and the
- * map has been resized since the last update. Null or undefined if a
- * callback is not provided.
- * @type {?function}
- * @private
- */
- this.resizeHandler_ = null;
- /**
- * The LatLng coordinate of the top left of the current view of the map. Will
- * be null when this.isAdded_ is false.
- * @type {google.maps.LatLng}
- * @private
- */
- this.topLeft_ = null;
- /**
- * The map-pan event listener. Will be null when this.isAdded_ is false. Will
- * be null when this.isAdded_ is false.
- * @type {?function}
- * @private
- */
- this.centerListener_ = null;
- /**
- * The map-resize event listener. Will be null when this.isAdded_ is false.
- * @type {?function}
- * @private
- */
- this.resizeListener_ = null;
- /**
- * If true, the map size has changed and this.resizeHandler_ must be called
- * on the next update.
- * @type {boolean}
- * @private
- */
- this.needsResize_ = true;
- /**
- * A browser-defined id for the currently requested callback. Null when no
- * callback is queued.
- * @type {?number}
- * @private
- */
- this.requestAnimationFrameId_ = null;
- var canvas = document.createElement('canvas');
- canvas.style.position = 'absolute';
- canvas.style.top = 0;
- canvas.style.left = 0;
- canvas.style.pointerEvents = 'none';
- /**
- * The canvas element.
- * @type {!HTMLCanvasElement}
- */
- this.canvas = canvas;
- /**
- * The CSS width of the canvas, which may be different than the width of the
- * backing store.
- * @private {number}
- */
- this.canvasCssWidth_ = 300;
- /**
- * The CSS height of the canvas, which may be different than the height of
- * the backing store.
- * @private {number}
- */
- this.canvasCssHeight_ = 150;
- /**
- * A value for scaling the CanvasLayer resolution relative to the CanvasLayer
- * display size.
- * @private {number}
- */
- this.resolutionScale_ = 1;
- /**
- * Simple bind for functions with no args for bind-less browsers (Safari).
- * @param {Object} thisArg The this value used for the target function.
- * @param {function} func The function to be bound.
- */
- function simpleBindShim(thisArg, func) {
- return function () {
- func.apply(thisArg);
- };
- }
- /**
- * A reference to this.repositionCanvas_ with this bound as its this value.
- * @type {function}
- * @private
- */
- this.repositionFunction_ = simpleBindShim(this, this.repositionCanvas_);
- /**
- * A reference to this.resize_ with this bound as its this value.
- * @type {function}
- * @private
- */
- this.resizeFunction_ = simpleBindShim(this, this.resize_);
- /**
- * A reference to this.update_ with this bound as its this value.
- * @type {function}
- * @private
- */
- this.requestUpdateFunction_ = simpleBindShim(this, this.update_);
- // set provided options, if any
- if (opt_options) {
- this.setOptions(opt_options);
- }
- }
- var global$4 = typeof window === 'undefined' ? {} : window;
- if (global$4.google && global$4.google.maps) {
- CanvasLayer$2.prototype = new google.maps.OverlayView();
- /**
- * The default MapPane to contain the canvas.
- * @type {string}
- * @const
- * @private
- */
- CanvasLayer$2.DEFAULT_PANE_NAME_ = 'overlayLayer';
- /**
- * Transform CSS property name, with vendor prefix if required. If browser
- * does not support transforms, property will be ignored.
- * @type {string}
- * @const
- * @private
- */
- CanvasLayer$2.CSS_TRANSFORM_ = function () {
- var div = document.createElement('div');
- var transformProps = ['transform', 'WebkitTransform', 'MozTransform', 'OTransform', 'msTransform'];
- for (var i = 0; i < transformProps.length; i++) {
- var prop = transformProps[i];
- if (div.style[prop] !== undefined) {
- return prop;
- }
- }
- // return unprefixed version by default
- return transformProps[0];
- }();
- /**
- * The requestAnimationFrame function, with vendor-prefixed or setTimeout-based
- * fallbacks. MUST be called with window as thisArg.
- * @type {function}
- * @param {function} callback The function to add to the frame request queue.
- * @return {number} The browser-defined id for the requested callback.
- * @private
- */
- CanvasLayer$2.prototype.requestAnimFrame_ = global$4.requestAnimationFrame || global$4.webkitRequestAnimationFrame || global$4.mozRequestAnimationFrame || global$4.oRequestAnimationFrame || global$4.msRequestAnimationFrame || function (callback) {
- return global$4.setTimeout(callback, 1000 / 60);
- };
- /**
- * The cancelAnimationFrame function, with vendor-prefixed fallback. Does not
- * fall back to clearTimeout as some platforms implement requestAnimationFrame
- * but not cancelAnimationFrame, and the cost is an extra frame on onRemove.
- * MUST be called with window as thisArg.
- * @type {function}
- * @param {number=} requestId The id of the frame request to cancel.
- * @private
- */
- CanvasLayer$2.prototype.cancelAnimFrame_ = global$4.cancelAnimationFrame || global$4.webkitCancelAnimationFrame || global$4.mozCancelAnimationFrame || global$4.oCancelAnimationFrame || global$4.msCancelAnimationFrame || function (requestId) {};
- /**
- * Sets any options provided. See CanvasLayerOptions for more information.
- * @param {CanvasLayerOptions} options The options to set.
- */
- CanvasLayer$2.prototype.setOptions = function (options) {
- if (options.animate !== undefined) {
- this.setAnimate(options.animate);
- }
- if (options.paneName !== undefined) {
- this.setPaneName(options.paneName);
- }
- if (options.updateHandler !== undefined) {
- this.setUpdateHandler(options.updateHandler);
- }
- if (options.resizeHandler !== undefined) {
- this.setResizeHandler(options.resizeHandler);
- }
- if (options.resolutionScale !== undefined) {
- this.setResolutionScale(options.resolutionScale);
- }
- if (options.map !== undefined) {
- this.setMap(options.map);
- }
- };
- /**
- * Set the animated state of the layer. If true, updateHandler will be called
- * repeatedly, once per frame. If false, updateHandler will only be called when
- * a map property changes that could require the canvas content to be redrawn.
- * @param {boolean} animate Whether the canvas is animated.
- */
- CanvasLayer$2.prototype.setAnimate = function (animate) {
- this.isAnimated_ = !!animate;
- if (this.isAnimated_) {
- this.scheduleUpdate();
- }
- };
- /**
- * @return {boolean} Whether the canvas is animated.
- */
- CanvasLayer$2.prototype.isAnimated = function () {
- return this.isAnimated_;
- };
- /**
- * Set the MapPane in which this layer will be displayed, by name. See
- * {@code google.maps.MapPanes} for the panes available.
- * @param {string} paneName The name of the desired MapPane.
- */
- CanvasLayer$2.prototype.setPaneName = function (paneName) {
- this.paneName_ = paneName;
- this.setPane_();
- };
- /**
- * @return {string} The name of the current container pane.
- */
- CanvasLayer$2.prototype.getPaneName = function () {
- return this.paneName_;
- };
- /**
- * Adds the canvas to the specified container pane. Since this is guaranteed to
- * execute only after onAdd is called, this is when paneName's existence is
- * checked (and an error is thrown if it doesn't exist).
- * @private
- */
- CanvasLayer$2.prototype.setPane_ = function () {
- if (!this.isAdded_) {
- return;
- }
- // onAdd has been called, so panes can be used
- var panes = this.getPanes();
- if (!panes[this.paneName_]) {
- throw new Error('"' + this.paneName_ + '" is not a valid MapPane name.');
- }
- panes[this.paneName_].appendChild(this.canvas);
- };
- /**
- * Set a function that will be called whenever the parent map and the overlay's
- * canvas have been resized. If opt_resizeHandler is null or unspecified, any
- * existing callback is removed.
- * @param {?function=} opt_resizeHandler The resize callback function.
- */
- CanvasLayer$2.prototype.setResizeHandler = function (opt_resizeHandler) {
- this.resizeHandler_ = opt_resizeHandler;
- };
- /**
- * Sets a value for scaling the canvas resolution relative to the canvas
- * display size. This can be used to save computation by scaling the backing
- * buffer down, or to support high DPI devices by scaling it up (by e.g.
- * window.devicePixelRatio).
- * @param {number} scale
- */
- CanvasLayer$2.prototype.setResolutionScale = function (scale) {
- if (typeof scale === 'number') {
- this.resolutionScale_ = scale;
- this.resize_();
- }
- };
- /**
- * Set a function that will be called when a repaint of the canvas is required.
- * If opt_updateHandler is null or unspecified, any existing callback is
- * removed.
- * @param {?function=} opt_updateHandler The update callback function.
- */
- CanvasLayer$2.prototype.setUpdateHandler = function (opt_updateHandler) {
- this.updateHandler_ = opt_updateHandler;
- };
- /**
- * @inheritDoc
- */
- CanvasLayer$2.prototype.onAdd = function () {
- if (this.isAdded_) {
- return;
- }
- this.isAdded_ = true;
- this.setPane_();
- this.resizeListener_ = google.maps.event.addListener(this.getMap(), 'resize', this.resizeFunction_);
- this.centerListener_ = google.maps.event.addListener(this.getMap(), 'center_changed', this.repositionFunction_);
- this.resize_();
- this.repositionCanvas_();
- };
- /**
- * @inheritDoc
- */
- CanvasLayer$2.prototype.onRemove = function () {
- if (!this.isAdded_) {
- return;
- }
- this.isAdded_ = false;
- this.topLeft_ = null;
- // remove canvas and listeners for pan and resize from map
- this.canvas.parentElement.removeChild(this.canvas);
- if (this.centerListener_) {
- google.maps.event.removeListener(this.centerListener_);
- this.centerListener_ = null;
- }
- if (this.resizeListener_) {
- google.maps.event.removeListener(this.resizeListener_);
- this.resizeListener_ = null;
- }
- // cease canvas update callbacks
- if (this.requestAnimationFrameId_) {
- this.cancelAnimFrame_.call(global$4, this.requestAnimationFrameId_);
- this.requestAnimationFrameId_ = null;
- }
- };
- /**
- * The internal callback for resize events that resizes the canvas to keep the
- * map properly covered.
- * @private
- */
- CanvasLayer$2.prototype.resize_ = function () {
- if (!this.isAdded_) {
- return;
- }
- var map = this.getMap();
- var mapWidth = map.getDiv().offsetWidth;
- var mapHeight = map.getDiv().offsetHeight;
- var newWidth = mapWidth * this.resolutionScale_;
- var newHeight = mapHeight * this.resolutionScale_;
- var oldWidth = this.canvas.width;
- var oldHeight = this.canvas.height;
- // resizing may allocate a new back buffer, so do so conservatively
- if (oldWidth !== newWidth || oldHeight !== newHeight) {
- this.canvas.width = newWidth;
- this.canvas.height = newHeight;
- this.needsResize_ = true;
- this.scheduleUpdate();
- }
- // reset styling if new sizes don't match; resize of data not needed
- if (this.canvasCssWidth_ !== mapWidth || this.canvasCssHeight_ !== mapHeight) {
- this.canvasCssWidth_ = mapWidth;
- this.canvasCssHeight_ = mapHeight;
- this.canvas.style.width = mapWidth + 'px';
- this.canvas.style.height = mapHeight + 'px';
- }
- };
- /**
- * @inheritDoc
- */
- CanvasLayer$2.prototype.draw = function () {
- this.repositionCanvas_();
- };
- /**
- * Internal callback for map view changes. Since the Maps API moves the overlay
- * along with the map, this function calculates the opposite translation to
- * keep the canvas in place.
- * @private
- */
- CanvasLayer$2.prototype.repositionCanvas_ = function () {
- // TODO(bckenny): *should* only be executed on RAF, but in current browsers
- // this causes noticeable hitches in map and overlay relative
- // positioning.
- var map = this.getMap();
- // topLeft can't be calculated from map.getBounds(), because bounds are
- // clamped to -180 and 180 when completely zoomed out. Instead, calculate
- // left as an offset from the center, which is an unwrapped LatLng.
- var top = map.getBounds().getNorthEast().lat();
- var center = map.getCenter();
- var scale = Math.pow(2, map.getZoom());
- var left = center.lng() - this.canvasCssWidth_ * 180 / (256 * scale);
- this.topLeft_ = new google.maps.LatLng(top, left);
- // Canvas position relative to draggable map's container depends on
- // overlayView's projection, not the map's. Have to use the center of the
- // map for this, not the top left, for the same reason as above.
- var projection = this.getProjection();
- var divCenter = projection.fromLatLngToDivPixel(center);
- var offsetX = -Math.round(this.canvasCssWidth_ / 2 - divCenter.x);
- var offsetY = -Math.round(this.canvasCssHeight_ / 2 - divCenter.y);
- this.canvas.style[CanvasLayer$2.CSS_TRANSFORM_] = 'translate(' + offsetX + 'px,' + offsetY + 'px)';
- this.scheduleUpdate();
- };
- /**
- * Internal callback that serves as main animation scheduler via
- * requestAnimationFrame. Calls resize and update callbacks if set, and
- * schedules the next frame if overlay is animated.
- * @private
- */
- CanvasLayer$2.prototype.update_ = function () {
- this.requestAnimationFrameId_ = null;
- if (!this.isAdded_) {
- return;
- }
- if (this.isAnimated_) {
- this.scheduleUpdate();
- }
- if (this.needsResize_ && this.resizeHandler_) {
- this.needsResize_ = false;
- this.resizeHandler_();
- }
- if (this.updateHandler_) {
- this.updateHandler_();
- }
- };
- /**
- * A convenience method to get the current LatLng coordinate of the top left of
- * the current view of the map.
- * @return {google.maps.LatLng} The top left coordinate.
- */
- CanvasLayer$2.prototype.getTopLeft = function () {
- return this.topLeft_;
- };
- /**
- * Schedule a requestAnimationFrame callback to updateHandler. If one is
- * already scheduled, there is no effect.
- */
- CanvasLayer$2.prototype.scheduleUpdate = function () {
- if (this.isAdded_ && !this.requestAnimationFrameId_) {
- this.requestAnimationFrameId_ = this.requestAnimFrame_.call(global$4, this.requestUpdateFunction_);
- }
- };
- }
- /**
- * @author kyle / http://nikai.us/
- */
- var Layer$2 = function (_BaseLayer) {
- inherits(Layer, _BaseLayer);
- function Layer(map, dataSet, options) {
- classCallCheck(this, Layer);
- var _this = possibleConstructorReturn(this, (Layer.__proto__ || Object.getPrototypeOf(Layer)).call(this, map, dataSet, options));
- var self = _this;
- var data = null;
- options = options || {};
- self.init(options);
- self.argCheck(options);
- var canvasLayerOptions = {
- map: map,
- animate: false,
- updateHandler: function updateHandler() {
- self._canvasUpdate();
- },
- resolutionScale: resolutionScale
- };
- var canvasLayer = _this.canvasLayer = new CanvasLayer$2(canvasLayerOptions);
- _this.clickEvent = _this.clickEvent.bind(_this);
- _this.mousemoveEvent = _this.mousemoveEvent.bind(_this);
- _this.bindEvent();
- return _this;
- }
- createClass(Layer, [{
- key: "clickEvent",
- value: function clickEvent(e) {
- var pixel = e.pixel;
- get(Layer.prototype.__proto__ || Object.getPrototypeOf(Layer.prototype), "clickEvent", this).call(this, pixel, e);
- }
- }, {
- key: "mousemoveEvent",
- value: function mousemoveEvent(e) {
- var pixel = e.pixel;
- get(Layer.prototype.__proto__ || Object.getPrototypeOf(Layer.prototype), "mousemoveEvent", this).call(this, pixel, e);
- }
- }, {
- key: "bindEvent",
- value: function bindEvent(e) {
- var map = this.map;
- if (this.options.methods) {
- if (this.options.methods.click) {
- map.setDefaultCursor("default");
- map.addListener('click', this.clickEvent);
- }
- if (this.options.methods.mousemove) {
- map.addListener('mousemove', this.mousemoveEvent);
- }
- }
- }
- }, {
- key: "unbindEvent",
- value: function unbindEvent(e) {
- var map = this.map;
- if (this.options.methods) {
- if (this.options.methods.click) {
- map.removeListener('click', this.clickEvent);
- }
- if (this.options.methods.mousemove) {
- map.removeListener('mousemove', this.mousemoveEvent);
- }
- }
- }
- }, {
- key: "getContext",
- value: function getContext() {
- return this.canvasLayer.canvas.getContext(this.context);
- }
- }, {
- key: "_canvasUpdate",
- value: function _canvasUpdate(time) {
- if (!this.canvasLayer) {
- return;
- }
- var self = this;
- var animationOptions = self.options.animation;
- var context = this.getContext();
- if (self.isEnabledTime()) {
- if (time === undefined) {
- clear(context);
- return;
- }
- if (this.context == '2d') {
- context.save();
- context.globalCompositeOperation = 'destination-out';
- context.fillStyle = 'rgba(0, 0, 0, .1)';
- context.fillRect(0, 0, context.canvas.width, context.canvas.height);
- context.restore();
- }
- } else {
- clear(context);
- }
- if (this.context == '2d') {
- for (var key in self.options) {
- context[key] = self.options[key];
- }
- } else {
- context.clear(context.COLOR_BUFFER_BIT);
- }
- if (self.options.minZoom && map.getZoom() < self.options.minZoom || self.options.maxZoom && map.getZoom() > self.options.maxZoom) {
- return;
- }
- var scale = 1;
- if (this.context != '2d') {
- scale = this.canvasLayer.devicePixelRatio;
- }
- var map = this.map;
- var mapProjection = map.getProjection();
- var scale = Math.pow(2, map.zoom) * resolutionScale;
- var offset = mapProjection.fromLatLngToPoint(this.canvasLayer.getTopLeft());
- var dataGetOptions = {
- //fromColumn: self.options.coordType == 'bd09mc' ? 'coordinates' : 'coordinates_mercator',
- transferCoordinate: function transferCoordinate(coordinate) {
- var latLng = new google.maps.LatLng(coordinate[1], coordinate[0]);
- var worldPoint = mapProjection.fromLatLngToPoint(latLng);
- var pixel = {
- x: (worldPoint.x - offset.x) * scale,
- y: (worldPoint.y - offset.y) * scale
- };
- return [pixel.x, pixel.y];
- }
- };
- if (time !== undefined) {
- dataGetOptions.filter = function (item) {
- var trails = animationOptions.trails || 10;
- if (time && item.time > time - trails && item.time < time) {
- return true;
- } else {
- return false;
- }
- };
- }
- // get data from data set
- var data = self.dataSet.get(dataGetOptions);
- this.processData(data);
- var latLng = new google.maps.LatLng(0, 0);
- var worldPoint = mapProjection.fromLatLngToPoint(latLng);
- var pixel = {
- x: (worldPoint.x - offset.x) * scale,
- y: (worldPoint.y - offset.y) * scale
- };
- if (self.options.unit == 'm' && self.options.size) {
- self.options._size = self.options.size / zoomUnit;
- } else {
- self.options._size = self.options.size;
- }
- this.drawContext(context, new DataSet(data), self.options, pixel);
- //console.timeEnd('draw');
- //console.timeEnd('update')
- self.options.updateCallback && self.options.updateCallback(time);
- }
- }, {
- key: "init",
- value: function init(options) {
- var self = this;
- self.options = options;
- this.initDataRange(options);
- this.context = self.options.context || '2d';
- if (self.options.zIndex) {
- this.canvasLayer && this.canvasLayer.setZIndex(self.options.zIndex);
- }
- this.initAnimator();
- }
- }, {
- key: "addAnimatorEvent",
- value: function addAnimatorEvent() {
- this.map.addListener('movestart', this.animatorMovestartEvent.bind(this));
- this.map.addListener('moveend', this.animatorMoveendEvent.bind(this));
- }
- }, {
- key: "show",
- value: function show() {
- this.map.addOverlay(this.canvasLayer);
- }
- }, {
- key: "hide",
- value: function hide() {
- this.map.removeOverlay(this.canvasLayer);
- }
- }, {
- key: "draw",
- value: function draw() {
- self.canvasLayer.draw();
- }
- }]);
- return Layer;
- }(BaseLayer);
- /**
- * @author kyle / http://nikai.us/
- */
- var geojson = {
- getDataSet: function getDataSet(geoJson) {
- var data = [];
- var features = geoJson.features;
- for (var i = 0; i < features.length; i++) {
- var feature = features[i];
- var geometry = feature.geometry;
- var properties = feature.properties;
- var item = {};
- for (var key in properties) {
- item[key] = properties[key];
- }
- item.geometry = geometry;
- data.push(item);
- }
- return new DataSet(data);
- }
- };
- /**
- * @author kyle / http://nikai.us/
- */
- var csv = {
- CSVToArray: function CSVToArray(strData, strDelimiter) {
- // Check to see if the delimiter is defined. If not,
- // then default to comma.
- strDelimiter = strDelimiter || ",";
- // Create a regular expression to parse the CSV values.
- var objPattern = new RegExp(
- // Delimiters.
- "(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +
- // Quoted fields.
- "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
- // Standard fields.
- "([^\"\\" + strDelimiter + "\\r\\n]*))", "gi");
- // Create an array to hold our data. Give the array
- // a default empty first row.
- var arrData = [[]];
- // Create an array to hold our individual pattern
- // matching groups.
- var arrMatches = null;
- // Keep looping over the regular expression matches
- // until we can no longer find a match.
- while (arrMatches = objPattern.exec(strData)) {
- // Get the delimiter that was found.
- var strMatchedDelimiter = arrMatches[1];
- // Check to see if the given delimiter has a length
- // (is not the start of string) and if it matches
- // field delimiter. If id does not, then we know
- // that this delimiter is a row delimiter.
- if (strMatchedDelimiter.length && strMatchedDelimiter !== strDelimiter) {
- // Since we have reached a new row of data,
- // add an empty row to our data array.
- arrData.push([]);
- }
- var strMatchedValue;
- // Now that we have our delimiter out of the way,
- // let's check to see which kind of value we
- // captured (quoted or unquoted).
- if (arrMatches[2]) {
- // We found a quoted value. When we capture
- // this value, unescape any double quotes.
- strMatchedValue = arrMatches[2].replace(new RegExp("\"\"", "g"), "\"");
- } else {
- // We found a non-quoted value.
- strMatchedValue = arrMatches[3];
- }
- // Now that we have our value string, let's add
- // it to the data array.
- arrData[arrData.length - 1].push(strMatchedValue);
- }
- // Return the parsed data.
- return arrData;
- },
- getDataSet: function getDataSet(csvStr, split) {
- var arr = this.CSVToArray(csvStr, split || ',');
- var data = [];
- var header = arr[0];
- for (var i = 1; i < arr.length - 1; i++) {
- var line = arr[i];
- var item = {};
- for (var j = 0; j < line.length; j++) {
- var value = line[j];
- if (header[j] == 'geometry') {
- value = JSON.parse(value);
- }
- item[header[j]] = value;
- }
- data.push(item);
- }
- return new DataSet(data);
- }
- };
- exports.version = version;
- exports.canvasClear = clear;
- exports.canvasResolutionScale = resolutionScale$1;
- exports.canvasDrawSimple = drawSimple;
- exports.canvasDrawHeatmap = drawHeatmap;
- exports.canvasDrawGrid = drawGrid;
- exports.canvasDrawHoneycomb = drawHoneycomb;
- exports.webglDrawSimple = webglDrawSimple;
- exports.webglDrawPoint = point;
- exports.webglDrawLine = line;
- exports.webglDrawPolygon = polygon;
- exports.utilCityCenter = cityCenter;
- exports.utilCurve = curve;
- exports.utilForceEdgeBundling = ForceEdgeBundling;
- exports.utilDataRangeIntensity = Intensity;
- exports.utilDataRangeCategory = Category;
- exports.utilDataRangeChoropleth = Choropleth;
- exports.Map = MapHelper;
- exports.baiduMapCanvasLayer = CanvasLayer;
- exports.baiduMapAnimationLayer = AnimationLayer;
- exports.baiduMapLayer = Layer;
- exports.googleMapCanvasLayer = CanvasLayer$2;
- exports.googleMapLayer = Layer$2;
- exports.DataSet = DataSet;
- exports.geojson = geojson;
- exports.csv = csv;
- Object.defineProperty(exports, '__esModule', { value: true });
- })));
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