vtk 拾取3D和2D对象高亮

dmuInteractorStyleRubberBand3D::OnLeftButtonDown()
{
    //3D
        int* clickPos3D = this->GetInteractor()->GetEventPosition();
        // Pick from this location.
        vtkSmartPointer<vtkPropPicker>  picker3D =vtkSmartPointer<vtkPropPicker>::New();
        picker3D->Pick(clickPos3D[0], clickPos3D[1], 0, this->GetDefaultRenderer());
        double* pos3D = picker3D->GetPickPosition();
        
        // If we picked something before, reset its property
        if (this->LastPickedActor)
        {    
            this->LastPickedActor->GetProperty()->DeepCopy(this->LastPickedProperty);
            LastPickedActor->GetMapper()->ScalarVisi