vtkPolyData数据的空间变换

以下是使用vtkTransformPolyDataFilter过滤器调用vtkTransform旋转矩阵实现了vtkPolyData数据的空间变换。并保存为了.obj格式的数据。

	vtkSmartPointer pTransform = vtkSmartPointer::New();
	pTransform->RotateX(-90);//x轴旋转-90度

	vtkSmartPointer pTransformPolyDataFilter = vtkSmartPointer::New();
	pTransformPolyDataFilter->SetInputData(source);
	pTransformPolyDataFilter->SetTransform(pTransform);
	pTransformPolyDataFilter->Update();

	//写出为OBJ格式
	vtkSmartPointer porter = vtkSmartPointer::New();
	porter->SetFileName(outObjfileName.c_str());
	porter->SetInputConnection(pTransformPolyDataFilter->GetOutputPort());
	porter->Write();
	porter->Update();