vtk镜像图 - 技术栈

vtkReflectionFilter ：用于将数据集沿一个平面进行镜像反射的过滤器

SetPlane：设置镜像平面，有x_min,y_min,z_min,x_max,y_max,z_max,x,y,z几种选项
SetCenter：平面位置，仅在Plane设为 X, Y, Z 时有效，用于指定平面的具体坐标
SetCopyInput：是否复制原数据。设为 On (默认) 则输出镜像和原数据，设为 Off 则仅输出镜像数据
SetFlipAllInputArrays：翻转所有数组。默认仅翻转向量、法线等。开启后会翻转输入中的所有3分量数组，需注意：此选项仅在 VTK 7.0+ 版本中可用

cpp 复制代码

 int vtkPlaneMode = vtkReflectionFilter::USE_X;
 double planeCenter = model.planePosition;
 m_reflectFilter = vtkSmartPointer<vtkReflectionFilter>::New();
 m_reflectFilter->SetInputData(m_dataSet);
 switch (model.planeMode) {
     case 0: vtkPlaneMode = vtkReflectionFilter::USE_X_MIN; break;
     case 1: vtkPlaneMode = vtkReflectionFilter::USE_Y_MIN; break;
     case 2: vtkPlaneMode = vtkReflectionFilter::USE_Z_MIN; break;
     case 3: vtkPlaneMode = vtkReflectionFilter::USE_X_MAX; break;
     case 4: vtkPlaneMode = vtkReflectionFilter::USE_Y_MAX; break;
     case 5: vtkPlaneMode = vtkReflectionFilter::USE_Z_MAX; break;
     case 6: vtkPlaneMode = vtkReflectionFilter::USE_X; break;
     case 7: vtkPlaneMode = vtkReflectionFilter::USE_Y; break;
     case 8: vtkPlaneMode = vtkReflectionFilter::USE_Z; break;
     default:
         return false;
 }
 m_reflectFilter->SetPlane(vtkPlaneMode);
 m_reflectFilter->SetCenter(planeCenter);
 m_reflectFilter->SetCopyInput(static_cast<int>(model.copyInput));
 m_reflectFilter->SetFlipAllInputArrays(true);

 m_reflectMapper = vtkSmartPointer<vtkDataSetMapper>::New();
 m_reflectMapper->SetInputConnection(m_reflectFilter->GetOutputPort());
 m_reflectMapper->ScalarVisibilityOff();

 if (!m_reflectActor) {
     m_reflectActor = vtkSmartPointer<vtkActor>::New();
 }

 m_renderer->RemoveActor(m_reflectActor);
 m_renderer->AddActor(m_reflectActor);
 m_reflectActor->SetMapper(m_reflectMapper);
 m_reflectActor->GetProperty()->SetColor(0.9, 0.9, 0.9);
 setActorRenderMode(m_reflectActor);