Method GetLayerType

IO/GDAL/vtkGDALVectorReader.cxx:428–474

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
int vtkGDALVectorReader::GetLayerType(int layerIndex)
{
  if (this->InitializeInternal() == VTK_ERROR)
  {
    return -1;
  }

  OGRLayer* layer = this->Implementation->Source->GetLayer(layerIndex);

  if (!layer)
  {
    return -1;
  }

  switch (layer->GetGeomType())
  {
    case wkbUnknown:
      return VTK_EMPTY_CELL;
    case wkbPoint:
    case wkbPoint25D:
      return VTK_VERTEX;
    case wkbLinearRing: // OGR docs imply that wkbLinearRing may not inherit wkbLineString in the
                        // future.
    case wkbLineString:
    case wkbLineString25D:
      return VTK_LINE;
    case wkbPolygon:
    case wkbPolygon25D:
      return VTK_POLYGON;
    case wkbMultiPoint:
    case wkbMultiPoint25D:
      return VTK_POLY_VERTEX;
    case wkbMultiLineString:
    case wkbMultiLineString25D:
      return VTK_POLY_LINE;
    case wkbMultiPolygon:
    case wkbMultiPolygon25D:
      return VTK_POLYGON;
    case wkbGeometryCollection:
    case wkbGeometryCollection25D:
      return VTK_NUMBER_OF_CELL_TYPES;
    case wkbNone:
      return -1;
    default:
      return -1;
  }
}

//------------------------------------------------------------------------------
int vtkGDALVectorReader::GetFeatureCount(int layerIndex)