Simon, You can use the OGRPolygon::getNumInteriorRings() method to get the number of holes in an OGR polygon object.
On Tue, Mar 8, 2011 at 2:27 PM, Simon Lyngby Kokkendorff <sil...@gmail.com>wrote: > Hi List, > > I am using ogr via the python bindings to construct various polygons. > Here's just a simple question, to which someone might have some input. Is > there anyway to determine the topology, i.e. the number of holes, of a > polygon without e.g. having to export to WKT and examining the output > string. There doesn't seem to be any methods exposed in the bindings to do > this directly? > > Cheers, > Simon Kokkendorff, > National Survey and Cadastre of Denmark > > > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/gdal-dev > -- Best regards, Chaitanya kumar CH. /tʃaɪθənjə/ /kʊmɑr/ +91-9494447584 17.2416N 80.1426E
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