echarts.js原先可以不使用百度地图API，直接实现迁徙图的效果。后来因为一些原因，地理信息的定位需要借助百度地图来实现。
首先需要echarts。
然后是echarts的插件 bmap。
之后是需要在页面上结合百度地图，所以要申请一个百度地图的api key地图Api申请地址
这里申请一个JS API在网页端 使用就可以了
准备就绪，就可以开始制作了。
百度echarts本身的简单使用教程
echarts最简单教程
这是echarts给出的快速上手教程，关于配置文件中的每个模块的作用在后面简单介绍。文档中也有更详细的介绍和使用方法。搭一个简易的测试页面
demo/ demo.html map.js js/ echarts.js bmap.js
<html><head> <meta charset="utf-8"> <style> .mainwindow{ height: 500px; width: 500px; } .mapwindow{ height: 100%; width: 500px; background-color: #3dd17b; float: left; } </style></head><body> <div id="main" class="mainwindow"> <div id="map" class="mapwindow"></div> </div></body><script src="http://api.map.baidu.com/api?v=2.0&ak=你申请的API KEY"></script><script src="../js/echarts.js"></script> <script src="../js/bmap.js"></script><script src="./map.js"></script></html>//初始化echarts,并和框体map绑定。var myChart = echarts.init(document.getElementById('map'));//手工写入的一个迁徙线的数据，正常项目中应该是由AJAX或其他方式来获取数据。var linesdata = [{ fromName: "银泰", toName: "路口", coords: [ [120.114271,30.305938], [120.118951,30.309134] ] }];//echarts中使用地图的配置参数var option = {bmap: { // 百度地图中心经纬度 坐标拾取器http://api.map.baidu.com/lbsapi/getpoint/index.html center: [120.114271,30.305938], // 百度地图缩放等级，数字越大，放大越大，地图比例尺越小 zoom: 16, // 是否开启拖拽缩放，可以只设置 'scale' 或者 'move' roam: false, // mapStyle是百度地图的自定义样式，见 http://developer.baidu.com/map/custom/ mapStyle: { styleJson: [{ "featureType": "water", "elementType": "all", "stylers": { "color": "#021019" } }, { "featureType": "highway", "elementType": "geometry.fill", "stylers": { "color": "#000000" } }, { "featureType": "highway", "elementType": "geometry.stroke", "stylers": { "color": "#147a92" } }, { "featureType": "arterial", "elementType": "geometry.fill", "stylers": { "color": "#000000" } }, { "featureType": "arterial", "elementType": "geometry.stroke", "stylers": { "color": "#0b3d51" } }, { "featureType": "local", "elementType": "geometry", "stylers": { "color": "#000000" } }, { "featureType": "land", "elementType": "all", "stylers": { "color": "#08304b" } }, { "featureType": "railway", "elementType": "geometry.fill", "stylers": { "color": "#000000" } }, { "featureType": "railway", "elementType": "geometry.stroke", "stylers": { "color": "#08304b" } }, { "featureType": "subway", "elementType": "geometry", "stylers": { "lightness": -70 } }, { "featureType": "building", "elementType": "geometry.fill", "stylers": { "color": "#000000" } }, { "featureType": "all", "elementType": "labels.text.fill", "stylers": { "color": "#857f7f" } }, { "featureType": "all", "elementType": "labels.text.stroke", "stylers": { "color": "#000000" } }, { "featureType": "building", "elementType": "geometry", "stylers": { "color": "#022338" } }, { "featureType": "green", "elementType": "geometry", "stylers": { "color": "#062032" } }, { "featureType": "boundary", "elementType": "all", "stylers": { "color": "#1e1c1c" } }, { "featureType": "manmade", "elementType": "geometry", "stylers": { "color": "#022338" } }, { "featureType": "poi", "elementType": "all", "stylers": { "visibility": "off" } }, { "featureType": "all", "elementType": "labels.icon", "stylers": { "visibility": "off" } }, { "featureType": "all", "elementType": "labels.text.fill", "stylers": { "color": "#2da0c6", "visibility": "on" } } ] } },//series是在地图上的线条等效果的配置文件，具体可以查阅文档。series: [{ type: 'lines', coordinateSystem: 'bmap', zlevel: 2, effect: { show: true, period: 6, trailLength: 0, symbol: 'arrow', symbolSize: 10 }, lineStyle: { normal: { color: "#a6c84c", width: 2, opacity: 0.6, curveness: 0.2 } }, //将手动做的一个迁徙数据放入线条的数据部分。 data: linesdata }] };//配置参数传入图形实例中myChart.setOption(option);//初始化bmap和echarts实例绑定var bmap = myChart.getModel().getComponent('bmap').getBMap(); bmap.addControl(new BMap.MapTypeControl());
map.js 用来完成写入echarts中的图形配置文件和图形的初始化和加载
demo.html，画一个最简单的div窗口来容纳迁徙图。
文件结构
在浏览器中打开demo.html就可以看到一个杭州市城西银泰到一个小路口的箭头指向的线段。简易的迁徙图就制作完成了。
作者：chan2017
链接：https://www.jianshu.com/p/5ceb1c0c1cef
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