GM_CalcViewShed

Performs a view-shed analysis on loaded elevation data and creates a new view shed layer with the results. The layer handle returned in aViewShedLayer must be closed with GM_CloseLayer when you are done with it.

Syntax

C++
Copy 
GM_Error_t32 GM_CalcViewShed
(
GM_LayerHandle_t32          aLayer,         // IN: Layer to get elevations from or NULL for topmost layer at each point
const GM_ViewShedParams_t*  aViewShedParms, // IN: Parameters for creating view shed
GM_LayerHandle_t32*         aViewShedLayer  // OUT: Created view shed layer
);