Ok, thanks. On Mon, Jul 1, 2019 at 8:39 AM Casper Børgesen <[email protected]> wrote:
> A very quick guess would be that you have changed the polyCollect type > from a geometry type to a list of geometries. I don’t think the list of > geometries has a UnionCascaded method. I would probably go for a > polyCollect geometry type of MultiPolygon instead of the list/vector, that > way you should be able to run the UnionCascaded method. > > > > /Casper > > > > *From:* gdal-dev <[email protected]> *On Behalf Of *Ahmet > Temiz > *Sent:* 29. juni 2019 19:47 > *To:* gdal-dev <[email protected]> > *Subject:* [gdal-dev] UnionCascaded operation failed > > > > Hi, > > > > Using C++ I try to buffers from LineStrings,Then I want to union the > > resulting polygons with UnionCascaded. > > But at UnionCascaded operation failed with: > > "error: ‘class std::vector<OGRPolygon*>’ has no member named > ‘UnionCascaded’ > OGRGeometry *result=polyCollect.UnionCascaded(); > > " > > Can you tell me what I am doing wrong? > > > > here is the related code fragment: > > > > std::vector<OGRPolygon * > polyCollect ; > //OGRGeometryCollection *polyCollect ; > > while( (poFeature = poLayer->GetNextFeature()) != NULL ) > { > > OGRGeometry *poGeometry = poFeature->GetGeometryRef(); > > if( poGeometry != NULL > && wkbFlatten(poGeometry->getGeometryType()) == > wkbLineString ) > { > OGRLineString *poLine = (OGRLineString *) poGeometry; > // > OGRGeometry *bufGeometry = poLine->Buffer(100,30); > OGRPolygon *bufPoly= static_cast<OGRPolygon *> (bufGeometry) ; > printf( "%s \n", bufPoly->getGeometryName()); > > //polyCollect->addGeometryDirectly (bufPoly ); > polyCollect.push_back(bufPoly ); > } > else > { > printf( "no point geometry\n" ); > } > > OGRFeature::DestroyFeature( poFeature ); > } > > OGRGeometry *result=polyCollect.UnionCascaded(); > > > -- > > Ahmet Temiz > Jeoloji Müh. > Afet ve Acil Durum Yönetimi Başkanlığı > Bilgi İşlem Dairesi Başkanlığı-CBS Grubu > > > ________________________ > > Ahmet Temiz > Geological Eng. > Information Systems - GIS Group > Disaster and Emergency Management > of Presidency > -- Ahmet Temiz Jeoloji Müh. Afet ve Acil Durum Yönetimi Başkanlığı Bilgi İşlem Dairesi Başkanlığı-CBS Grubu ________________________ Ahmet Temiz Geological Eng. Information Systems - GIS Group Disaster and Emergency Management of Presidency
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