-// float *range = reader->GetOutput()->GetScalarRange();
-// viewer->SetColorWindow (range[1] - range[0]);
-// viewer->SetColorLevel (0.5 * (range[1] + range[0]));
+ vtkFloatingPointType *range = reader->GetOutput()->GetScalarRange();
+ viewer->SetColorWindow (range[1] - range[0]);
+ viewer->SetColorLevel (0.5 * (range[1] + range[0]));