- globalmapper.SpatialUnionSingle(GM_LayerHandle_t32 aLayer1, GM_SpatialOps_Params_t aParams) GM_Error_t32 ¶
A Single Union operation works on one layer set as Layer 1 in the dialog. This operation examines the overlap between features in the layer, and creates features in the result layer for overlapping and non-overlapping regions. For each region that is formed by overlapping features, identical features are created for each feature (and containing its attributes) that participated in the overlap.
aLayer (GM_LayerHandle_t32) – Layer in operation
aParams (GM_SpatialOps_Params_t) – Parameters
- Return type