SpatialEquals

globalmapper.SpatialEquals(GM_LayerHandle_t32 aLayer1, GM_LayerHandle_t32 aLayer2, GM_SpatialOps_Params_t aParams) → GM_Error_t32[source]

The Equals predicate returns the set of features from one layer that have an exact match with the geometry of a feature from another layer. This means the two boundaries, interiors, and exteriors match.

Parameters:

  • aLayer1 (GM_LayerHandle_t32) – First layer in predicate

  • aLayer2 (GM_LayerHandle_t32) – Second layer in predicate

  • aParams (GM_SpatialOps_Params_t) – Parameters

Returns:

Error Code

Return type:

GM_Error_t32


BEFORE

AFTER
../_images/EqualsBefore.png ../_images/BlueCircle.png

Example

The following is an example of SpatialEquals.

spatial_params = gm.GM_SpatialOps_Params_t()
spatial_params.mPredicateResultTarget = gm.GM_PredicateResult_CreateNewLayer
spatial_params.mResultLayerName = "Equals_Result"
err_SpatialEquals = gm.SpatialEquals(
    layers_list[0], layers_list[1], spatial_params
)