Almost perfect, but you've made a classical error : you've just forgotten to properly close the dataset with OGRDataSource::DestroyDataSource( poDS );
Quoting http://gdal.org/ogr/ogr_apitut.html: "Finally we need to close down the datasource in order to ensure headers are written out in an orderly way and all resources are recovered." I'll mention it in the doc of OGRSFDriver::CreateDataSource() for the sake of completeness. Le Monday 29 June 2009 19:54:45 Chandra Shekhar Kumar, vous avez écrit : > OGRRegisterAll(); > > OGRSFDriver *poDriver = > OGRSFDriverRegistrar::GetRegistrar()->GetDriverByName("ESRI Shapefile"); > > > > OGRDataSource *poDS = poDriver->CreateDataSource("point_out.shp", > 0); > > > > OGRLayer *poLayer = poDS->CreateLayer("point_out", 0, wkbPoint, 0); > > > > OGRFieldDefn oField1("Longitude", OFTReal); > > OGRFieldDefn oField2("Latitude", OFTReal); > > OGRFieldDefn oField3("Speed", OFTReal); > > > > if(poLayer->CreateField(&oField1) != OGRERR_NONE) > > { > > std::cout << "creation of Longitude failed" << std::endl; > > exit(1); > > } > > if(poLayer->CreateField(&oField2) != OGRERR_NONE) > > { > > std::cout << "creation of Latitude failed" << std::endl; > > exit(1); > > } > > if(poLayer->CreateField(&oField3) != OGRERR_NONE) > > { > > std::cout << "creation of Speed failed" << std::endl; > > exit(1); > > } > > > > OGRFeature *poFeature = OGRFeature::CreateFeature( > poLayer->GetLayerDefn() ); > > poFeature->SetField("Longitude", 1.1); > > poFeature->SetField("Latitude", 2.2); > > poFeature->SetField("Speed", 3.3); > > > > if( poLayer->CreateFeature( poFeature ) != OGRERR_NONE ) > > { > > std::cout << "Failed to create feature in shapefile" << > std::endl; > > exit( 1 ); > > } > > > > OGRFeature::DestroyFeature( poFeature ); > > _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev
