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

来源：互联网发布：股票回测软件编辑：程序博客网时间：2024/06/18 11:14

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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