在上一篇文章切开了零件,发现零件内部和外部颜色一样,当需要不一样时,可以通过actor的SetBackfaceProperty方法设置背面属性。
代码跟上一篇几乎一样,只是给actor设置了SetBackfaceProperty。
//定义背面材质属性 vtkNew<vtkProperty> backfaceProp; backfaceProp->SetDiffuseColor(0, 1, 0); //设置背面属性 clipActor->SetBackfaceProperty(backfaceProp);
显示如下:
全部代码如下:
QSurfaceFormat::setDefaultFormat(QVTKOpenGLNativeWidget::defaultFormat()); vtkNew<vtkRenderer> renderer; vtkNew<vtkNamedColors> colors; //定义球 vtkNew<vtkSphereSource> sphereSource; sphereSource->SetRadius(10); sphereSource->SetCenter(0, 0, 0); //定义平面 vtkNew<vtkPlane> plane; plane->SetOrigin(3,0,0); plane->SetNormal(-1, 0, 0); //定义裁剪 vtkNew<vtkClipPolyData> clipper; clipper->SetInputConnection(sphereSource->GetOutputPort()); clipper->SetClipFunction(plane); vtkNew<vtkDataSetMapper> clipMapper; clipMapper->SetInputConnection(clipper->GetOutputPort()); vtkNew<vtkActor> clipActor; clipActor->SetMapper(clipMapper); clipActor->GetProperty()->SetDiffuseColor(colors->GetColor4d("Tomato").GetData()); clipActor->GetProperty()->EdgeVisibilityOn(); //显示线框 //定义背面材质属性 vtkNew<vtkProperty> backfaceProp; backfaceProp->SetDiffuseColor(0, 1, 0); //设置背面属性 clipActor->SetBackfaceProperty(backfaceProp); renderer->AddActor(clipActor); renderer->SetBackground(colors->GetColor3d("SteelBlue").GetData()); vtkNew<vtkGenericOpenGLRenderWindow> renderWindow; renderWindow->AddRenderer(renderer); renderWindow->SetWindowName("RenderWindowNoUIFile"); ui.vtk_main->setRenderWindow(renderWindow);
标签:面片,背面,backfaceProp,VTK,SetBackfaceProperty,renderWindow,clipActor,vtkNew From: https://www.cnblogs.com/SamFang/p/17417018.html