坐标转换源码：直角坐标系到大地坐标系之间可以方便相互转换-coordinate transformation source : Cartesian coordinates of the earth can easily between conversion

简单的坐标转换程序，可以实现XYX与BLH之间的转换。可是经过认证的呀。-The coordinates of the conversion process easy, you can achieve with blh xYx conversion between. But it certified.

XyzWin is a PC Windows program for converting NAD83 Latitude and Longitude to earth centered XYZ values on the GRS80 ellipsoid and vice versa. -XyzWin is a PC Windows program for converting NAD83 Latitude and Longitude to earth centered XYZ

this program will do the coordinate transformation