import hangzhouData from "./hangzhou-tracks.json";//杭州热力图数据
import heatmap from 'echarts/lib/chart/heatmap';//热力图
import bmap from 'echarts/extension/bmap/bmap';//bmap
import echarts from 'echarts';
Vue.prototype.$echarts = echarts;
var bmap = myChart.getModel().getComponent('bmap').getBMap();
getModel()方法一定要在setOption之后
myChart需要先setOption,才能拿到model的getComponent方法.否则会出现model是undefined的