Does the coordinate system in three.js use a left-handed coordinate system or a right-handed coordinate system?
Whether it is a left-handed coordinate system or a right-handed coordinate system, the x and y axis directions are unchanged. All that is changed is the direction of the z-axis.
The connection of the three-dimensional world coordinate system in threejs and gis: the xy coordinates in gis correspond to x and z, and the elevation in gis corresponds to y.
参考1：https://blog.csdn.net/QQ408896436/article/details/53737863
参考 2 ：https://www.cnblogs.com/2008nmj/p/14302796.html
gis is the origin of the center of the earth as x, y, z (0, 0, 0)
And threejs uses a certain point on the sphere as the origin (0,0,0), and the direction of the coordinate axis is also inconsistent with gis.
