版权声明:小薛薛的博客 https://blog.csdn.net/qq_35007834/article/details/85248416
如果已经知道了圆柱长轴的两个端点,可以结合vtkLineSource 和 vtkTubeFilter来生成具有方向性的圆柱体
int main(int, char *[]){
vtkSmartPointer<vtkLineSource> line = vtkSmartPointer<vtkLineSource>::New();
line->SetPoint1(0, 0, 0);
line->SetPoint2(10, 15, 20);
vtkSmartPointer<vtkTubeFilter> tubeFilter = vtkSmartPointer<vtkTubeFilter>::New();
tubeFilter->SetInputConnection(line->GetOutputPort());
tubeFilter->SetRadius(3.0);
tubeFilter->SetNumberOfSides(100);
tubeFilter->CappingOn();
vtkPolyDataMapper *vesselMapper = vtkPolyDataMapper::New();
vesselMapper->SetInputConnection(tubeFilter->GetOutputPort());
vesselMapper->SetScalarRange(0,7);
vtkSmartPointer<vtkActor> actor =vtkSmartPointer<vtkActor>::New();
actor->SetMapper(vesselMapper);
actor->SetColor(0,0,0);
// vtkSmartPointer<vtkNamedColors> colors =vtkSmartPointer<vtkNamedColors>::New();
renderer =vtkSmartPointer<vtkRenderer>::New();
renderer->SetBackground(1,1,1);//Slate_grey背景颜色
renderer->AddActor(actor);
vtkSmartPointer<vtkRenderWindow> renderWindow =vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->AddRenderer(renderer);
renderWindow->SetSize(1000, 1000);
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
renderWindow->Render(); //刷新
renderWindowInteractor->Initialize();
renderWindowInteractor->Start();
}