5623 lines
185 KiB
JavaScript
5623 lines
185 KiB
JavaScript
/*!
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* Copyright (c) 2016, Baidu, Inc. All rights reserved.
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* mapv.(http://mapv.baidu.com)
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* github: https://github.com/huiyan-fe/mapv
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* license: BSD 3-clause "New" or "Revised"
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*/
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(function (global, factory) {
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typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
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typeof define === 'function' && define.amd ? define(['exports'], factory) :
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(factory((global.mapv = global.mapv || {})));
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}(this, (function (exports) { 'use strict';
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var version = "2.0.14";
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/**
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* @author kyle / http://nikai.us/
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*/
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var clear = function (context) {
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context && context.clearRect && context.clearRect(0, 0, context.canvas.width, context.canvas.height);
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//context.canvas.width = context.canvas.width;
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//context.canvas.height = context.canvas.height;
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};
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/**
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* @author kyle / http://nikai.us/
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*/
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var resolutionScale$1 = function (context) {
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var devicePixelRatio = window.devicePixelRatio || 1;
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context.canvas.width = context.canvas.width * devicePixelRatio;
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context.canvas.height = context.canvas.height * devicePixelRatio;
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context.canvas.style.width = context.canvas.width / devicePixelRatio + 'px';
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context.canvas.style.height = context.canvas.height / devicePixelRatio + 'px';
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context.scale(devicePixelRatio, devicePixelRatio);
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};
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function Event() {
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this._subscribers = {}; // event subscribers
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}
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/**
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* Subscribe to an event, add an event listener
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* @param {String} event Event name. Available events: 'put', 'update',
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* 'remove'
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* @param {function} callback Callback method. Called with three parameters:
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* {String} event
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* {Object | null} params
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* {String | Number} senderId
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*/
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Event.prototype.on = function (event, callback) {
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var subscribers = this._subscribers[event];
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if (!subscribers) {
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subscribers = [];
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this._subscribers[event] = subscribers;
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}
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subscribers.push({
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callback: callback
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});
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};
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/**
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* Unsubscribe from an event, remove an event listener
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* @param {String} event
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* @param {function} callback
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*/
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Event.prototype.off = function (event, callback) {
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var subscribers = this._subscribers[event];
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if (subscribers) {
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//this._subscribers[event] = subscribers.filter(listener => listener.callback != callback);
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for (var i = 0; i < subscribers.length; i++) {
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if (subscribers[i].callback == callback) {
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subscribers.splice(i, 1);
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i--;
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}
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}
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}
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};
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/**
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* Trigger an event
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* @param {String} event
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* @param {Object | null} params
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* @param {String} [senderId] Optional id of the sender.
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* @private
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*/
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Event.prototype._trigger = function (event, params, senderId) {
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if (event == '*') {
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throw new Error('Cannot trigger event *');
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}
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var subscribers = [];
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if (event in this._subscribers) {
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subscribers = subscribers.concat(this._subscribers[event]);
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}
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if ('*' in this._subscribers) {
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subscribers = subscribers.concat(this._subscribers['*']);
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}
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for (var i = 0, len = subscribers.length; i < len; i++) {
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var subscriber = subscribers[i];
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if (subscriber.callback) {
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subscriber.callback(event, params, senderId || null);
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}
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}
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};
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var classCallCheck = function (instance, Constructor) {
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if (!(instance instanceof Constructor)) {
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throw new TypeError("Cannot call a class as a function");
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}
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};
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var createClass = function () {
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function defineProperties(target, props) {
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for (var i = 0; i < props.length; i++) {
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var descriptor = props[i];
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descriptor.enumerable = descriptor.enumerable || false;
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descriptor.configurable = true;
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if ("value" in descriptor) descriptor.writable = true;
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Object.defineProperty(target, descriptor.key, descriptor);
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}
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}
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return function (Constructor, protoProps, staticProps) {
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if (protoProps) defineProperties(Constructor.prototype, protoProps);
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if (staticProps) defineProperties(Constructor, staticProps);
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return Constructor;
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};
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}();
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var get = function get(object, property, receiver) {
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if (object === null) object = Function.prototype;
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var desc = Object.getOwnPropertyDescriptor(object, property);
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if (desc === undefined) {
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var parent = Object.getPrototypeOf(object);
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if (parent === null) {
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return undefined;
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} else {
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return get(parent, property, receiver);
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}
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} else if ("value" in desc) {
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return desc.value;
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} else {
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var getter = desc.get;
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if (getter === undefined) {
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return undefined;
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}
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return getter.call(receiver);
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}
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};
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var inherits = function (subClass, superClass) {
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if (typeof superClass !== "function" && superClass !== null) {
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throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
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}
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subClass.prototype = Object.create(superClass && superClass.prototype, {
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constructor: {
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value: subClass,
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enumerable: false,
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writable: true,
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configurable: true
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}
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});
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if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
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};
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var possibleConstructorReturn = function (self, call) {
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if (!self) {
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throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
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}
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return call && (typeof call === "object" || typeof call === "function") ? call : self;
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};
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/**
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* @author kyle / http://nikai.us/
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*/
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/**
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* DataSet
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*
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* A data set can:
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* - add/remove/update data
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* - gives triggers upon changes in the data
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* - can import/export data in various data formats
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* @param {Array} [data] Optional array with initial data
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* the field geometry is like geojson, it can be:
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* {
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* "type": "Point",
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* "coordinates": [125.6, 10.1]
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* }
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* {
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* "type": "LineString",
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* "coordinates": [
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* [102.0, 0.0], [103.0, 1.0], [104.0, 0.0], [105.0, 1.0]
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* ]
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* }
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* {
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* "type": "Polygon",
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* "coordinates": [
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* [ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
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* [100.0, 1.0], [100.0, 0.0] ]
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* ]
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* }
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* @param {Object} [options] Available options:
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*
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||
*/
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function DataSet(data, options) {
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Event.bind(this)();
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this._options = options || {};
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this._data = []; // map with data indexed by id
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// add initial data when provided
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if (data) {
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this.add(data);
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}
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}
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DataSet.prototype = Event.prototype;
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/**
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* Add data.
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*/
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DataSet.prototype.add = function (data, senderId) {
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if (Array.isArray(data)) {
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// Array
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for (var i = 0, len = data.length; i < len; i++) {
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if (data[i].time && data[i].time.length == 14 && data[i].time.substr(0, 2) == '20') {
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var time = data[i].time;
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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();
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}
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this._data.push(data[i]);
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}
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} else if (data instanceof Object) {
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// Single item
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this._data.push(data);
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} else {
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throw new Error('Unknown dataType');
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}
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};
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/**
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* get data.
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*/
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DataSet.prototype.get = function (args) {
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args = args || {};
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//console.time('copy data time')
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var start = new Date();
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// 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
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// var data = deepCopy(this._data);
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var data = this._data;
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// console.timeEnd('copy data time')
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// console.time('transferCoordinate time')
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var start = new Date();
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if (args.filter) {
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var newData = [];
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for (var i = 0; i < data.length; i++) {
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if (args.filter(data[i])) {
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newData.push(data[i]);
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}
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}
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data = newData;
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}
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if (args.transferCoordinate) {
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data = this.transferCoordinate(data, args.transferCoordinate, args.fromColumn, args.toColumn);
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}
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// console.timeEnd('transferCoordinate time')
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return data;
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};
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/**
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* set data.
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*/
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DataSet.prototype.set = function (data) {
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this._set(data);
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this._trigger('change');
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};
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/**
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* set data.
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*/
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DataSet.prototype._set = function (data) {
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this.clear();
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this.add(data);
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};
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/**
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* clear data.
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*/
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DataSet.prototype.clear = function (args) {
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this._data = []; // map with data indexed by id
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};
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/**
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* remove data.
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*/
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DataSet.prototype.remove = function (args) {};
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/**
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* update data.
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*/
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DataSet.prototype.update = function (cbk, condition) {
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var data = this._data;
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var item = null;
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for (var i = 0; i < data.length; i++) {
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if (condition) {
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var flag = true;
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for (var key in condition) {
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if (data[i][key] != condition[key]) {
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flag = false;
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}
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}
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if (flag) {
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cbk && cbk(data[i]);
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}
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} else {
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cbk && cbk(data[i]);
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}
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}
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this._trigger('change');
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};
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/**
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* transfer coordinate.
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*/
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DataSet.prototype.transferCoordinate = function (data, transferFn, fromColumn, toColumnName) {
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toColumnName = toColumnName || '_coordinates';
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fromColumn = fromColumn || 'coordinates';
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for (var i = 0; i < data.length; i++) {
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var geometry = data[i].geometry;
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var coordinates = geometry[fromColumn];
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switch (geometry.type) {
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case 'Point':
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geometry[toColumnName] = transferFn(coordinates);
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break;
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case 'LineString':
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var newCoordinates = [];
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for (var j = 0; j < coordinates.length; j++) {
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newCoordinates.push(transferFn(coordinates[j]));
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}
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geometry[toColumnName] = newCoordinates;
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break;
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case 'Polygon':
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var newCoordinates = getPolygon(coordinates);
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geometry[toColumnName] = newCoordinates;
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break;
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case 'MultiPolygon':
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var newCoordinates = [];
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for (var c = 0; c < coordinates.length; c++) {
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var polygon = coordinates[c];
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var polygon = getPolygon(polygon);
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newCoordinates.push(polygon);
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}
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geometry[toColumnName] = newCoordinates;
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break;
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}
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}
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function getPolygon(coordinates) {
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var newCoordinates = [];
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for (var c = 0; c < coordinates.length; c++) {
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var coordinate = coordinates[c];
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var newcoordinate = [];
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for (var j = 0; j < coordinate.length; j++) {
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newcoordinate.push(transferFn(coordinate[j]));
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}
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newCoordinates.push(newcoordinate);
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}
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return newCoordinates;
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}
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return data;
|
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};
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DataSet.prototype.initGeometry = function (transferFn) {
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if (transferFn) {
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this._data.forEach(function (item) {
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item.geometry = transferFn(item);
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});
|
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} else {
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this._data.forEach(function (item) {
|
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if (!item.geometry && item.lng && item.lat) {
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item.geometry = {
|
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type: 'Point',
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coordinates: [item.lng, item.lat]
|
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};
|
||
}
|
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});
|
||
}
|
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};
|
||
|
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/**
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* 获取当前列的最大值
|
||
*/
|
||
DataSet.prototype.getMax = function (columnName) {
|
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var data = this._data;
|
||
|
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if (!data || data.length <= 0) {
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return;
|
||
}
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||
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var max = parseFloat(data[0][columnName]);
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||
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for (var i = 1; i < data.length; i++) {
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var value = parseFloat(data[i][columnName]);
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if (value > max) {
|
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max = value;
|
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}
|
||
}
|
||
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return max;
|
||
};
|
||
|
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/**
|
||
* 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;
|
||
|
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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;
|
||
};
|
||
|
||
/**
|
||
* @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(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 (options.symbol === 'rect') {
|
||
context.rect(coordinates[0] - size / 2, coordinates[1] - size / 2, size, size);
|
||
} else {
|
||
if (options.bigData === 'Point') {
|
||
context.moveTo(coordinates[0], coordinates[1]);
|
||
}
|
||
context.arc(coordinates[0], coordinates[1], size, 0, Math.PI * 2);
|
||
}
|
||
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') {
|
||
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/
|
||
*/
|
||
|
||
/**
|
||
* Category
|
||
* @param {Object} [options] Available options:
|
||
* {Object} gradient: { 0.25: "rgb(0,0,255)", 0.55: "rgb(0,255,0)", 0.85: "yellow", 1.0: "rgb(255,0,0)"}
|
||
*/
|
||
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(context, dataSet, options) {
|
||
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
|
||
};
|
||
|
||
/**
|
||
* @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(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 radius = r;
|
||
|
||
var result = hex_corner({
|
||
x: item.x + offset.x,
|
||
y: item.y + offset.y
|
||
}, radius, 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$1(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$1
|
||
};
|
||
|
||
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$2(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$2
|
||
};
|
||
|
||
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$3(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$3
|
||
};
|
||
|
||
/**
|
||
* @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);
|
||
}
|
||
}
|
||
}
|
||
};
|
||
|
||
/**
|
||
* 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: 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}, { 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", 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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: "吉林市", 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) {
|
||
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;
|
||
}
|
||
};
|
||
|
||
/**
|
||
* 根据弧线的坐标节点数组
|
||
*/
|
||
function getCurvePoints(points) {
|
||
var curvePoints = [];
|
||
for (var i = 0; i < points.length - 1; i++) {
|
||
var p = getCurveByTwoPoints(points[i], points[i + 1]);
|
||
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) {
|
||
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 = 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) {
|
||
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 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;"><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 = (max - min) / 7;
|
||
var index = min;
|
||
this.splitList = [];
|
||
var count = 0;
|
||
while (index < max) {
|
||
this.splitList.push({
|
||
start: index,
|
||
end: index + splitNum,
|
||
value: colors[count]
|
||
});
|
||
count++;
|
||
index += 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;
|
||
}();
|
||
|
||
/**
|
||
* 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.canvas.style.zIndex = 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;
|
||
}
|
||
|
||
}
|
||
|
||
};
|
||
|
||
/**
|
||
* @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);
|
||
}
|
||
|
||
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);
|
||
}
|
||
}
|
||
}
|
||
}, {
|
||
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.init(options);
|
||
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;
|
||
|
||
_this.init(options);
|
||
|
||
var canvasLayer = new CanvasLayer({
|
||
map: map,
|
||
update: _this._canvasUpdate.bind(_this)
|
||
});
|
||
_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: "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;
|
||
}
|
||
|
||
ctx.lineWidth = options.lineWidth || 1;
|
||
var strokeStyle = data[i].strokeStyle || options.strokeStyle;
|
||
var fillStyle = data[i].fillStyle || options.fillStyle || 'yellow';
|
||
ctx.fillStyle = fillStyle;
|
||
ctx.fill();
|
||
if (strokeStyle) {
|
||
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 || {};
|
||
|
||
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();
|
||
});
|
||
|
||
_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.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();
|
||
}
|
||
}, {
|
||
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) {
|
||
|
||
var arr = this.CSVToArray(csvStr, ',');
|
||
|
||
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 });
|
||
|
||
})));
|