使用QVTK在Qt中进行PCL可视化

我是Qt编程的新手,我正在尝试在Qt Widget中可视化来自PCL的点云.我试图使用这种方法:https://stackoverflow.com/a/11939703/2339680,或(类似):http://www.pcl-users.org/QT-PCLVisualizer-mostly-working-td3285187.html.

我得到编译错误:"尝试在我的QVTKWidget中设置渲染窗口时,从类型'vtkObjectBase*const'中无效static_cast到'vtkRenderWindow*''.

作为参考,我已经包含了下面第二个来源的代码,它会重现错误.

#include 
#include 
#include 
#include 

int main(int argc, char** argv)
{
  QApplication app(argc, argv);

  QVTKWidget widget;
  widget.resize(512, 256);

  //
  {
    pcl::PointCloud::Ptr cloud_xyz (new pcl::PointCloud);
    {

      for (float y = -0.5f; y <= 0.5f; y += 0.01f)
      {
        for (float z = -0.5f; z <= 0.5f; z += 0.01f)
        {
          pcl::PointXYZ point;
          point.x = 2.0f - y;
          point.y = y;
          point.z = z;
          cloud_xyz->points.push_back (point);
        }
      }
      cloud_xyz->width = cloud_xyz->points.size ();
      cloud_xyz->height = 1;

    }

    // this creates and displays a window named "test_viz"
    // upon calling PCLVisualizerInteractor interactor_->Initialize ();
    // how to disable that?
    pcl::visualization::PCLVisualizer pviz ("test_viz");

    pviz.addPointCloud(cloud_xyz);
    pviz.setBackgroundColor(0, 0, 0.1);

    vtkSmartPointer renderWindow = pviz.getRenderWindow();
    widget.SetRenderWindow(renderWindow);
  }

  widget.show();
  app.exec();

  return EXIT_SUCCESS;
}

该错误发生在该行

widget.SetRenderWindow(renderWindow);

我使用的是Qt 4.8.0和PCL 1.7.0.有谁知道是否有可能解决这个问题？