RailwayGIS 北京交通大学 交通运输规划与管理硕士在读 EPSG900913与EPSG3857是一个坐标系 EPSG:900913和EPSG:3857有什么区别? (qastack.cn) google maps - What is the difference between EPSG:900913 and EPSG:3857? - Geographic Information Systems Stack Exchange ...
A: The coordinate projection transformation class SuperMap.Projection provided by JavaScript is used to transform projection on the client. For the custom coordinate system, you need to introduce the Proj4js.js package (../exampless/proj4js/lib/); For ex