Global Mapper SDK

GM_SpatialUnionSingle

Performs the single-layer Union spatial operation. The aLayer1 parameter must not be NULL. The mResultLayerName parameter specifies the result layer name, and may not be NULL.

The result layer handle is returned in the aParams' mResultLayer member; it will be NULL if the operation fails.

Syntax

C++

Copy

GM_DLL_EXPORTED GM_Error_t32 __stdcall GM_SpatialUnionSingle
(
GM_LayerHandle_t32           aLayer,     // IN: Layer in operation
GM_SpatialOps_Params_t*      aParams      // IN: Parameters
)