OGRErr OGRDXFWriterLayer::ICreateFeature( OGRFeature *poFeature )
{
OGRGeometry *poGeom = poFeature->GetGeometryRef();
OGRwkbGeometryType eGType = wkbNone;
if( poGeom != nullptr )
{
if( !poGeom->IsEmpty() )
{
OGREnvelope sEnvelope;
poGeom->getEnvelope(&sEnvelope);
poDS->UpdateExtent(&sEnvelope);
}
eGType = wkbFlatten(poGeom->getGeometryType());
}
if( eGType == wkbPoint )
{
const char *pszBlockName = poFeature->GetFieldAsString("BlockName");
// We don't want to treat as a blocks ref if the block is not defined
if( pszBlockName
&& poDS->oHeaderDS.LookupBlock(pszBlockName) == nullptr )
{
if( poDS->poBlocksLayer == nullptr
|| poDS->poBlocksLayer->FindBlock(pszBlockName) == nullptr )
pszBlockName = nullptr;
}
if( pszBlockName != nullptr )
return WriteINSERT( poFeature );
else if( poFeature->GetStyleString() != nullptr
&& STARTS_WITH_CI(poFeature->GetStyleString(), "LABEL") )
return WriteTEXT( poFeature );
else
return WritePOINT( poFeature );
}
else if( eGType == wkbLineString
|| eGType == wkbMultiLineString )
return WritePOLYLINE( poFeature );
else if( eGType == wkbPolygon
|| eGType == wkbTriangle
|| eGType == wkbMultiPolygon)
{
if( bWriteHatch )
return WriteHATCH( poFeature );
else
return WritePOLYLINE( poFeature );
}
// Explode geometry collections into multiple entities.
else if( eGType == wkbGeometryCollection )
{
OGRGeometryCollection *poGC =
poFeature->StealGeometry()->toGeometryCollection();
for( auto&& poMember: poGC )
{
poFeature->SetGeometry( poMember );
OGRErr eErr = CreateFeature( poFeature );
if( eErr != OGRERR_NONE )
{
delete poGC;
return eErr;
}
}
poFeature->SetGeometryDirectly( poGC );
return OGRERR_NONE;
}
else
{
CPLError( CE_Failure, CPLE_AppDefined,
"No known way to write feature with geometry '%s'.",
OGRGeometryTypeToName(eGType) );
return OGRERR_FAILURE;
}
}
OGRErr OGRDXFWriterLayer::ICreateFeature( OGRFeature *poFeature )
{
OGRGeometry *poGeom = poFeature->GetGeometryRef();
OGRwkbGeometryType eGType = wkbNone;
if( poGeom != NULL )
{
if( !poGeom->IsEmpty() )
{
OGREnvelope sEnvelope;
poGeom->getEnvelope(&sEnvelope);
poDS->UpdateExtent(&sEnvelope);
}
eGType = wkbFlatten(poGeom->getGeometryType());
}
if( eGType == wkbPoint )
{
const char *pszBlockName = poFeature->GetFieldAsString("BlockName");
// we don't want to treat as a block ref if we are writing blocks layer
if( pszBlockName != NULL
&& poDS->poBlocksLayer != NULL
&& poFeature->GetDefnRef() == poDS->poBlocksLayer->GetLayerDefn())
pszBlockName = NULL;
// We don't want to treat as a blocks ref if the block is not defined
if( pszBlockName
&& poDS->oHeaderDS.LookupBlock(pszBlockName) == NULL )
{
if( poDS->poBlocksLayer == NULL
|| poDS->poBlocksLayer->FindBlock(pszBlockName) == NULL )
pszBlockName = NULL;
}
if( pszBlockName != NULL )
return WriteINSERT( poFeature );
else if( poFeature->GetStyleString() != NULL
&& EQUALN(poFeature->GetStyleString(),"LABEL",5) )
return WriteTEXT( poFeature );
else
return WritePOINT( poFeature );
}
else if( eGType == wkbLineString
|| eGType == wkbMultiLineString )
return WritePOLYLINE( poFeature );
else if( eGType == wkbPolygon
|| eGType == wkbMultiPolygon )
{
if( bWriteHatch )
return WriteHATCH( poFeature );
else
return WritePOLYLINE( poFeature );
}
// Explode geometry collections into multiple entities.
else if( eGType == wkbGeometryCollection )
{
OGRGeometryCollection *poGC = (OGRGeometryCollection *)
poFeature->StealGeometry();
int iGeom;
for( iGeom = 0; iGeom < poGC->getNumGeometries(); iGeom++ )
{
poFeature->SetGeometry( poGC->getGeometryRef(iGeom) );
OGRErr eErr = CreateFeature( poFeature );
if( eErr != OGRERR_NONE )
return eErr;
}
poFeature->SetGeometryDirectly( poGC );
return OGRERR_NONE;
}
else
{
CPLError( CE_Failure, CPLE_AppDefined,
"No known way to write feature with geometry '%s'.",
OGRGeometryTypeToName(eGType) );
return OGRERR_FAILURE;
}
}
