// 初始化地图

var BMapExt = new BMapExtension(domMain, BMap, require('echarts'), require('zrender'));

var map = BMapExt.getMap();

var container = BMapExt.getEchartsContainer();

var point = new BMap.Point(startPoint.x, startPoint.y);

map.centerAndZoom(point, 5);

map.enableScrollWheelZoom(true);

​

​

​

option = {

    color: ['gold','aqua','lime'],

    title : {

        text: '模拟迁徙',

        subtext:'数据纯属虚构',

        x:'right'

    },

    tooltip : {

        trigger: 'item',

        formatter: function (v) {

            return v[1].replace(':', ' > ');