Add echarts charts to cesium as a layer
In order to use this plugin, include the echartsjs, cesium and FlowEcharts.js on your page and use it as follow:
<script type="text/javascript" src="./lib/Cesium/Cesium.js"></script>
<script type="text/javascript" src="./lib/echarts-all-4.js"></script>
<script type="text/javascript" src="../dist/FlowEcharts.js"></script>
<link rel="stylesheet" href="./lib/Cesium/Widgets/widgets.css">
set the charts attribute coordinateSystem:"GLMap"
option = {
GLMap: { //Must
},
series: [{
coordinateSystem: 'GLMap',
}]
}