Does that code compile for you? What are you expecting this line to do: OGRLineString *poLine = (OGRLineString *) poGeometry;
? Where is poGeometry even defined? Brad From: Ahmet Temiz <[email protected]> Sent: Sunday, 20 June 2021 6:30 PM To: Brad Hards <[email protected]> Subject: Re: [gdal-dev] I couldn't use OGRCreateCoordinateTransformation Here is the full code regards On Sun, Jun 20, 2021 at 11:02 AM Brad Hards <[email protected] <mailto:[email protected]> > wrote: What is the `polyGeometry`? Can you try to generate a compilable, minimal, self-contained example that demonstrates the problem? Brad From: gdal-dev <[email protected] <mailto:[email protected]> > On Behalf Of Ahmet Temiz Sent: Sunday, 20 June 2021 5:56 PM To: gdal-dev <[email protected] <mailto:[email protected]> > Subject: [gdal-dev] I couldn't use OGRCreateCoordinateTransformation Hi, .. source.SetWellKnownGeogCS( "EPSG:3857" ); dest.SetWellKnownGeogCS( "EPSG:4326" ); OGRCoordinateTransformation* ct = OGRCreateCoordinateTransformation(&source, &dest); OGRPolygon *poPolygon= ( OGRPolygon *) polyGeometry; OGRErr err=poPolygon->transform(ct) ; // it generates this error. ERROR 6: No translation for an empty SRS to PROJ.4 format is known. I think, this occurs, because I could not assign any SRS value to polygon How can I solve this problem? regards -- Ahmet Temiz Jeoloji Müh. Afet ve Acil Durum Yönetimi Başkanlığı Deprem Dairesi Başkanlığı ________________________ Ahmet Temiz Geological Eng. Disaster and Emergency Management of Presidency -- Ahmet Temiz Jeoloji Müh. Afet ve Acil Durum Yönetimi Başkanlığı Deprem Dairesi Başkanlığı ________________________ Ahmet Temiz Geological Eng. Disaster and Emergency Management of Presidency
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