vtk画直线

 vtk中画一条直线，point1为起始点，point2为终止点：

 

[cpp] view plaincopy

1. vtkRenderer *ren = vtkRenderer::New();  
2. vtkRenderWindow *renWin = vtkRenderWindow::New();  
3. renWin->AddRenderer(ren);  
4.   
5. vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();  
6. iren->SetRenderWindow(renWin);  
7.       
8. vtkSmartPointer<vtkLineSource> line = vtkSmartPointer<vtkLineSource>::New();  
9. line->SetPoint1(10,10,10);  
10. line->SetPoint2(10,10,50);  
11.       
12. vtkSmartPointer<vtkDataSetMapper> line_mapper = vtkSmartPointer<vtkDataSetMapper>::New();  
13. line_mapper->SetInput(line->GetOutput());  
14.   
15. vtkSmartPointer<vtkActor> line_actor = vtkSmartPointer<vtkActor>::New();  
16. line_actor->SetMapper(line_mapper);  
17. line_actor->GetProperty()->SetColor(1.0,0,0);  
18. ren->AddActor(line_actor);  
19. ren->SetBackground(1, 1, 1);  
20. renWin->SetSize(450, 450);  
21.   
22. vtkInteractorStyleTrackballCamera *style=vtkInteractorStyleTrackballCamera::New();  
23. iren->SetInteractorStyle(style);  
24.   
25. iren->Initialize();  
26. renWin->Render();  
27.   
28. iren->Start();  

 

 

 

也可以在固定的框框中显示直线：

 

[cpp] view plaincopy

1. vtkRenderer *ren = vtkRenderer::New();  
2. vtkRenderWindow *renWin = vtkRenderWindow::New();  
3. renWin->AddRenderer(ren);  
4.   
5. vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();  
6. iren->SetRenderWindow(renWin);  
7.   
8. vtkSmartPointer<vtkLineSource> line = vtkSmartPointer<vtkLineSource>::New();  
9. line->SetPoint1(10,10,10);  
10. line->SetPoint2(10,10,50);  
11.   
12. vtkSmartPointer<vtkDataSetMapper> line_mapper = vtkSmartPointer<vtkDataSetMapper>::New();  
13. line_mapper->SetInput(line->GetOutput());  
14.   
15. vtkSmartPointer<vtkActor> line_actor = vtkSmartPointer<vtkActor>::New();  
16. line_actor->SetMapper(line_mapper);  
17. line_actor->GetProperty()->SetColor(1.0,0,0);  
18. tkOrientationMarkerWidget *widget = vtkOrientationMarkerWidget::New();  
19.     widget->SetOutlineColor( 0.9300, 0.5700, 0.1300 );  
20.     widget->SetOrientationMarker( line_actor );  
21.     widget->SetInteractor( iren );  
22.     widget->SetViewport( 0.85, 0.0, 1, 0.2 );  
23.     widget->SetEnabled( 1 );  
24.     widget->InteractiveOff();  
25.     widget->InteractiveOn();  
26.   
27.   
28.   
29.   
30. ren->SetBackground(1, 1, 1);  
31. renWin->SetSize(450, 450);  
32.   
33. vtkInteractorStyleTrackballCamera *style=vtkInteractorStyleTrackballCamera::New();  
34. iren->SetInteractorStyle(style);  
35.   
36. iren->Initialize();  
37. renWin->Render();  
38.   
39. iren->Start();  

 

 

本文来源：http://blog.csdn.net/lusmiling/article/details/5655134