[gdal-dev] How to check are there any OGRGeometry (polygons) within an OGRGeometry (polygon) ?

[taibc]

Hi everyone,
Please see my image:

  <http://osgeo-org.1560.x6.nabble.com/file/n5057389/Multipolygon.png> 

I used the below statements to get Geometry: 

OGRGeometry *poGeometry;
poGeometry = poFeature->GetGeometryRef();

Do you know how to check whether the Polygon 1 (geometry) is empty (or
include a small polygon) or not ?

If it is possible, how to get or identify the polygon 2 ?

Thanks and regards,

Tai



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