echarts - geo data area of a drawing area no

1, to obtain geo

http://datav.aliyun.com/tools/atlas/#&lat=31.30084828737045&lng=120.92308044433594&zoom=10

2, drawing Polygon (Comparative trouble)

http://geojson.io/#map=12/31.4401/120.9638

3. Export Polygon json

 

4, and generates echarts encode import json

http://blog.giscafer.com/mapshaper-plus/