vtkCellArray *lines = vtkCellArray::New();
vtkPolyData *_pd = vtkPolyData::New();
vtkPolyDataMapper* _bboxMapper=vtkPolyDataMapper::New();
vtkCellArray *lines = vtkCellArray::New();
vtkPolyData *_pd = vtkPolyData::New();
vtkPolyDataMapper* _bboxMapper=vtkPolyDataMapper::New();