explode_to_polygons#

caf.cvt.data_cleaning.explode_to_polygons(gdf, track_part=False)[source]#

Explodes the MultiPolygons and GeomCollections in a GeoDataFrame into Polygons.

Converts rows in a GeoDataFrame with a MultiPolygon or GeometryCollection geometry into multiple rows with Polygon geometries, adding a ‘part’ column to keep track of how many new rows have been created for each if specified. Leaves other geometries as they are, and preserves the original CRS.

Parameters:

  • gdf (gpd.GeoDataFrame) – The input GeoDataFrame that needs to be cleaned

  • track_part (bool = False) – True if tracking the parts of each extracted polygon is necessary, False if not.

Returns:

A new GeoDataFrame containing only Polygon geometries, with a new column ‘part’ to keep track.

Return type:

gpd.GeoDataFrame