there are three migration maps for business demand. Cities in other provinces migrate to Xi"an and cities in other countries migrate to Xi"an. These two maps have been realized, but the map of other cities in Shaanxi Province migrating to Xi"an shows that it is abnormal and crowded into a pile.

:
1.
require("echarts/map/js/world")
require("echarts/map/js/china")
require("echarts/map/js/province/shanxi")
2.