GM_CalcBearing

GM_Error_t32 GM_CalcBearing

(

double  aFromX,     // IN: start X/longitude coordinate

double  aFromY,     // IN: start Y/latitude coordinate

double  aToX,       // IN: stop X/longitude coordinate

double  aToY,       // IN: stop Y/latitude coordinate

boolean aLatLon,    // IN: TRUE - coordinates are lat/lon, FALSE - coordinates are in the current projection?

double* aBearing    // OUT: bearing in radians between the points

);