Qt环境下使用vtk的测量组件 vtkAngleWidget和vtkDistanceWidget

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Qt坏境下在ui文件中qvtkwidget添加vtkAngleWidget和vtkDistanceWidget 组件代码:

vtkDistanceWidget组件:

        vtkRenderer * renderer  = vtkRenderer::New();
        ui->qvtkWidget->GetRenderWindow()->AddRenderer(renderer);
        vtkDistanceWidget *distanceWidget = vtkDistanceWidget::New();
        distanceWidget->SetInteractor(ui->vtkWidget->GetRenderWindow()->GetInteractor());
        vtkDistanceRepresentation3D* representation = vtkDistanceRepresentation3D::New();
        distanceWidget->SetRepresentation(representation);
        distanceWidget->SetPriority(0.9);
        static_cast<vtkDistanceRepresentation*> (distanceWidget->GetRepresentation())->SetLabelFormat("%-#6.2f mm");
        distanceWidget->ManagesCursorOn();
        distanceWidget->On();

vtkAngleWidget组件:

      vtkRenderer *renderer  = vtkRenderer::New();
      ui->qvtkWidget->GetRenderWindow()->AddRenderer(renderer);
      vtkAngleWidget *angleWidget =vtkAngleWidget::New();
      angleWidget->SetPriority(0.9);
      angleWidget->SetInteractor(ui->qvtkWidget->GetRenderWindow()->GetInteractor()); //添加交互器
      angleWidget->CreateDefaultRepresentation();
      angleWidget->ManagesCursorOn();
      angleWidget->On();

在代码调试过程中发现使用vtkSmartPointer智能指针定义vtkDistanceWidget 和 vtkAngleWidget是组件不显示,写成普通模式则可以,不太清楚具体原因





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