Base on couse 2, Changed step 4 to

• 4, Create a QVTKOpenGLWidget

  //step 0: set it to a window:
  auto vw = new  QVTKOpenGLWidget(this) ;
  vtkRenderWindow *renWin = vw->GetRenderWindow();
  ui->tabWidget->addTab( vw, __FUNCTION__);
    
  vtkRenderer *render= vtkRenderer::New();
    
  render->SetBackground( 0.1, 0.2, 0.4 );
    
  vtkSmartPointer<vtkConeSource> coneSource = vtkSmartPointer<vtkConeSource>::New();
  coneSource->SetRadius(.2);
  coneSource->SetHeight(.5);
  coneSource->SetCenter(0, 0, 0);
    
    
  vtkSmartPointer<vtkPolyDataMapper> coneMapper =
      vtkSmartPointer<vtkPolyDataMapper>::New();
  coneMapper->SetInputConnection(coneSource->GetOutputPort());
  vtkSmartPointer<vtkActor> coneActor =
      vtkSmartPointer<vtkActor>::New();
  coneActor->SetMapper(coneMapper);
    
  vtkSmartPointer<vtkActor> oriConeActor =
      vtkSmartPointer<vtkActor>::New();
  oriConeActor->SetMapper(coneMapper);
    
  render->AddActor(oriConeActor);
    
  double AXIS_LEN = 1.0;
  vtkSmartPointer<vtkAxesActor> oriAxesActor =
      vtkSmartPointer<vtkAxesActor>::New();
  oriAxesActor->SetPosition(0, 0, 0);
  oriAxesActor->SetTotalLength(AXIS_LEN, AXIS_LEN, AXIS_LEN);
  oriAxesActor->SetShaftType(0);
  oriAxesActor->SetAxisLabels(0);
  oriAxesActor->SetCylinderRadius(0.02);
    
    
  render->AddActor(oriAxesActor);
    
  renWin->AddRenderer( render );
  

• 5, Build and run You will get:

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• VTK (8)

• VTK (8) ,
• c++ (10)