- globalmapper.SpatialOperation(GM_SpatialOperations_t8 aOperation, GM_LayerHandle_t32 aLayer1, GM_LayerHandle_t32 aLayer2, GM_SpatialOps_Params_t aParams) GM_Error_t32
-
General spatial operation. Any of the two-layer spatial operation functions available in Global Mapper can be performed through this function, by entering the desired operation in the aOperation parameter.
Currently, the available operations and their parameter values are:
SpatialIntersection - GM_SpatialOps_Intersection
SpatialUnion - GM_SpatialOps_Union
SpatialDifference - GM_SpatialOps_Difference
SpatialSymmetricDifference - GM_SpatialOps_SymmetricDifference
- Parameters:
-
aOperation (GM_SpatialOperations_t8) – Operation to use
aLayer1 (GM_LayerHandle_t32) – First layer in operation
aLayer2 (GM_LayerHandle_t32) – Second layer in operation; may be gm.NULL
aParams (GM_SpatialOps_Params_t) – Parameters
- Returns:
-
Error Code
- Return type:
-
GM_Error_t32