Hi Mats,

Vector and raster datasets are pretty much different things in GDAL. And 
generally it would be a good idea to check whether e.g. GetLayer actually 
returns a pointer or nullptr.

What exactly do you mean by "associated OGRPolygon"? Do you want a polygon with 
the same footprint as the raster?

Laurentiu

On Fri, Oct 14, 2022, at 10:51, Johannes Paul wrote:
> Hello,
> Is there a way to get the OGRGeometry object out of a GDALDataset object in 
> c++?
> My GDALDataset is a raster and i would like to get the associated OGRPolygon 
> out of it.
> I've used:
> srcDataset->GetLayer(0)->GetNextFeature()->GetGeometryRef()->toPolygon()
> However i keep getting segmentation faults error.
> Any help would be appreciated.
> Thanks
> _______________________________________________
> gdal-dev mailing list
> gdal-dev@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/gdal-dev
> 
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev

Reply via email to