Method GetDataObjectTreeInput

Rendering/VolumeOpenGL2/vtkMultiBlockVolumeMapper.cxx:198–205

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

//------------------------------------------------------------------------------
vtkDataObjectTree* vtkMultiBlockVolumeMapper::GetDataObjectTreeInput()
{
  if (this->GetNumberOfInputConnections(0) < 1)
  {
    return nullptr;
  }
  return vtkDataObjectTree::SafeDownCast(this->GetInputDataObject(0, 0));
}

//------------------------------------------------------------------------------
void vtkMultiBlockVolumeMapper::LoadDataSet(vtkRenderer* ren, vtkVolume* vol)