Global Mapper SDK
Retrieves the elevation at a given location from a provided layer or from the list of currently loaded elevation layers (topmost elevation layer first).
Syntax
C++
Copy
GM_DLL_EXPORTED GM_Error_t32 GM_GetLocationElevation
(
GM_LayerHandle_t32 aLayer, // IN: Layer to get elevation from or NULL for topmost
double aXCoord, // IN: X coord in current projection
double aYCoord, // IN: Y coord in current projection
float* aElev // OUT: Elevation at location in meters
);