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.
SyntaxGM_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 );