GM_ProjectPointToECEF

Projects a point to ECEF (earth-centered earth-fixed) coordinates referenced to some datum (normally WGS84) from coordinates in some projection.

Syntax

C++
Copy 
GM_DLL_EXPORTED GM_Error_t32 __stdcall GM_ProjectPointToECEF
(
double                  aXIn,       // IN: X coordinate of input point
double                  aYIn,       // IN: Y coordinate of input point
double                  aZIn,       // IN: Z coordinate of input point (meters above ellipsoid), usually 0
double*                 aX,         // OUT: ECEF X coordinate of input
double*                 aY,         // OUT: ECEF Y coordinate of input
double*                 aZ,         // OUT: ECEF Z coordinate of input
DATUM                   aDatum,     // IN: datum for ECEF conversion (normally GM_DATUM_WGS_84)
const GM_Projection_t*  aProjIn     // IN: projection of input point (NULL for current projection)
)