OGRNTFRasterLayer::OGRNTFRasterLayer( OGRNTFDataSource *poDSIn,
NTFFileReader * poReaderIn )
{
char szLayerName[128];
sprintf( szLayerName, "DTM_%s", poReaderIn->GetTileName() );
poFeatureDefn = new OGRFeatureDefn( szLayerName );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType( wkbPoint25D );
OGRFieldDefn oHeight( "HEIGHT", OFTReal );
poFeatureDefn->AddFieldDefn( &oHeight );
poReader = poReaderIn;
poDS = poDSIn;
poFilterGeom = NULL;
pafColumn = (float *) CPLCalloc(sizeof(float),
poReader->GetRasterYSize());
iColumnOffset = -1;
iCurrentFC = 0;
/* -------------------------------------------------------------------- */
/* Check for DEM subsampling, and compute total feature count */
/* accordingly. */
/* -------------------------------------------------------------------- */
if( poDS->GetOption( "DEM_SAMPLE" ) == NULL )
nDEMSample = 1;
else
nDEMSample = MAX(1,atoi(poDS->GetOption("DEM_SAMPLE")));
nFeatureCount = (poReader->GetRasterXSize() / nDEMSample)
* (poReader->GetRasterYSize() / nDEMSample);
}
int OGRAVCLayer::SetupFeatureDefinition( const char *pszName )
{
bool bRet = false;
switch( eSectionType )
{
case AVCFileARC:
{
poFeatureDefn = new OGRFeatureDefn( pszName );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType( wkbLineString );
OGRFieldDefn oUserId( "UserId", OFTInteger );
OGRFieldDefn oFNode( "FNODE_", OFTInteger );
OGRFieldDefn oTNode( "TNODE_", OFTInteger );
OGRFieldDefn oLPoly( "LPOLY_", OFTInteger );
OGRFieldDefn oRPoly( "RPOLY_", OFTInteger );
poFeatureDefn->AddFieldDefn( &oUserId );
poFeatureDefn->AddFieldDefn( &oFNode );
poFeatureDefn->AddFieldDefn( &oTNode );
poFeatureDefn->AddFieldDefn( &oLPoly );
poFeatureDefn->AddFieldDefn( &oRPoly );
bRet = true;
break;
}
case AVCFilePAL:
case AVCFileRPL:
{
poFeatureDefn = new OGRFeatureDefn( pszName );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType( wkbPolygon );
OGRFieldDefn oArcIds( "ArcIds", OFTIntegerList );
poFeatureDefn->AddFieldDefn( &oArcIds );
bRet = true;
break;
}
case AVCFileCNT:
{
poFeatureDefn = new OGRFeatureDefn( pszName );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType( wkbPoint );
OGRFieldDefn oLabelIds( "LabelIds", OFTIntegerList );
poFeatureDefn->AddFieldDefn( &oLabelIds );
bRet = true;
break;
}
case AVCFileLAB:
{
poFeatureDefn = new OGRFeatureDefn( pszName );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType( wkbPoint );
OGRFieldDefn oValueId( "ValueId", OFTInteger );
poFeatureDefn->AddFieldDefn( &oValueId );
OGRFieldDefn oPolyId( "PolyId", OFTInteger );
poFeatureDefn->AddFieldDefn( &oPolyId );
bRet = true;
break;
}
case AVCFileTXT:
case AVCFileTX6:
{
poFeatureDefn = new OGRFeatureDefn( pszName );
poFeatureDefn->Reference();
poFeatureDefn->SetGeomType( wkbPoint );
OGRFieldDefn oUserId( "UserId", OFTInteger );
poFeatureDefn->AddFieldDefn( &oUserId );
OGRFieldDefn oText( "Text", OFTString );
poFeatureDefn->AddFieldDefn( &oText );
OGRFieldDefn oHeight( "Height", OFTReal );
poFeatureDefn->AddFieldDefn( &oHeight );
OGRFieldDefn oLevel( "Level", OFTInteger );
poFeatureDefn->AddFieldDefn( &oLevel );
bRet = true;
break;
}
default:
poFeatureDefn = NULL;
break;
}
SetDescription( pszName );
return bRet;
}