命令：MAPCSASSIGN（AutoCAD Map 3D）

WGS84经纬度坐标转换为WGS84投影坐标：

bool CCadFunction::CRS84ToWGS84(AcGePoint3d& ptSrc, AcGePoint3d& ptDes){	ads_point ptSrcTemp;	ptSrcTemp[X] = ptSrc.x;	ptSrcTemp[Y] = ptSrc.y;	ptSrcTemp[Z] = ptSrc.z;	if (RTNORM != ade_projsetsrc(_T("CRS:84")))		return false;	if (RTNORM != ade_projsetdest(_T("WGS84.PseudoMercator")))		return false;	ads_point ptDesTemp;	if (RTNORM != ade_projptforward(ptSrcTemp, ptDesTemp))		return false;	ptDes = asPnt3d(ptDesTemp);	return true;}

未完待续