point_mapped.push_back(vtkPolyDataMapper::New());
// point_mapped.back()->ImmediateModeRenderingOn();
//point_mapped.back()->ScalarVisibilityOff( );
point_mapped.push_back(vtkPolyDataMapper::New());
// point_mapped.back()->ImmediateModeRenderingOn();
//point_mapped.back()->ScalarVisibilityOff( );