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https://blog.csdn.net/nmj2008/article/details/113687546
从经纬度转笛卡尔直角坐标系：
var origin = Cesium.Cartesian3.fromDegree3(-123.0744619, 44.0503706, height);
计算转向Matrix：
标签：cart loading sdn img details http width csdn https
原文地址：https://www.cnblogs.com/2008nmj/p/14387597.html
