vtkIntersectionPolyDataFilter 重新划分网格沿交点线分割两个输出 vtkPolyData，代码如何实现

对于vtkIntersectionPolyDataFilter重新划分网格沿交点线分割两个输出vtkPolyData的代码实现，可以按照以下步骤进行：

1. 创建vtkIntersectionPolyDataFilter对象

vtkSmartPointer<vtkIntersectionPolyDataFilter> intersectionFilter = vtkSmartPointer<vtkIntersectionPolyDataFilter>::New();

2. 设置输入数据

intersectionFilter->SetInputData(inputPolyData);

3. 设置交点线

vtkSmartPointer<vtkPoints> points = vtkSmartPointer<vtkPoints>::New();
vtkSmartPointer<vtkCellArray> verts = vtkSmartPointer<vtkCellArray>::New();
points->InsertNextPoint(0, 0, 0);
points->InsertNextPoint(1, 1, 1);
verts->InsertNextCell(2);
verts->InsertCellPoint(0);
verts->InsertCellPoint(1);
vtkSmartPointer<vtkPolyData> polyData = vtkSmartPointer<vtkPolyData>::New();
polyData->SetPoints(points);
polyData->SetVerts(verts);
intersectionFilter->SetIntersectionData(polyData);

4. 运行vtkIntersectionPolyDataFilter过滤器

intersectionFilter->Update();

5. 获取输出

vtkSmartPointer<vtkPolyData> output1 = intersectionFilter->GetOutput(0);
vtkSmartPointer<vtkPolyData> output2 = intersectionFilter->GetOutput(1);

其中，output1和output2分别为过滤器的两个输出vtkPolyData。