squaresMapper->ScalarVisibilityOff();
squaresActor->SetMapper(squaresMapper);
squaresActor->GetProperty()->SetColor(1.0,0,0);
squaresMapper->ScalarVisibilityOff();
squaresActor->SetMapper(squaresMapper);
squaresActor->GetProperty()->SetColor(1.0,0,0);