SpatialCovers

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

The Covers predicate returns all area features in aLayer1 that have a feature in aLayer2 inside or on the border of it. This is a more general case of SpatialContains which must have at least on point inside of the outer feature. This is the reverse case of SpatialCoveredBy

Parameters:

  • aLayer1 (GM_LayerHandle_t32) – Input layer

  • aLayer2 (GM_LayerHandle_t32) – Input layer

  • aParams (GM_SpatialOps_Params_t) – Parameters

Returns:

Error Code

Return type:

GM_Error_t32


BEFORE

AFTER
../_images/CoverIMG.png ../_images/BlueCircle.png

Example

The following is an example of SpatialCovers.

spatial_params = gm.GM_SpatialOps_Params_t()
spatial_params.mPredicateResultTarget = gm.GM_PredicateResult_CreateNewLayer
spatial_params.mResultLayerName = "Covers_Result"
err_SpatialCovers = gm.SpatialCovers(
    layers_list[0], layers_list[1], spatial_params
)