Hello List, I hope you will be able to help me. I'm stuck on a problem. I'm trying to reconstruct within my Python script polygons from a shapefile that belong together.
So I naturally perfomed: geom_tmp = ogr.CreateGeometryFromWkb(ftr.GetGeometryRef().ExportToWkb()) geom.AddGeometryDirectly(geom_tmp) However this works only when the geometry to add is of type POLYGON. This _doesn't_ work with type MULTIPOLYGON (exit code 3). My question: is there a way to add MULTIPOLYGONs to an existing Geometry? What I don't understand is that when CreateGeometryFromWkb returns a MULTIPOLYGON it actually returns a GEOMETRY instead of a GEOMETRYCOLLECTION, thus preventing looping on each individual geometry with GetNumGeometries. Would there be a way to cast the polygon to a multipolygon? Help very much appreciated. Many thanks, Daniel
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