屏幕坐标，弧度，世界坐标

何事秋风悲画扇 14:27:00
Cesium.Cartesian3.fromDegrees(-103.0, 40.0)，你好我想问一下这个方法的参数是我们平时谷歌地图的经纬度还是弧度

何事秋风悲画扇 14:27:49
还不是很理解gis里面屏幕坐标，弧度，世界坐标，求大神带带

王佳莹 14:55:16
@何事秋风悲画扇 大致有四种坐标，可以相互转换

王佳莹 14:55:22

王佳莹 14:55:28
你一开始说的Cesium.Cartesian3.fromDegrees(-103.0, 40.0)里面用的是经纬度（角度）坐标，就是GPS坐标

王佳莹 14:55:31
你后来说的Cartographic是经纬度（弧度）坐标，转成Cesium的空间坐标可以这样用Cesium.Cartesian3.fromRadians(-2.007, 0.645)

The issue names Cesium.Cartesian3.fromDegrees, Cesium.Cartesian3.fromRadians, and Cartographic, but no source file, test, or documentation entry point. Start by locating the project’s Cesium coordinate documentation, then define a clear explanatory deliverable covering screen, degree, radian, and world coordinates and the parameters of the two methods.

Written by the indexing model from the issue text.