VTK 实例56：网格抽取（多分辨率处理）

1 #include <vtkAutoInit.h> 2 VTK_MODULE_INIT(vtkRenderingOpenGL2); 3 VTK_MODULE_INIT(vtkRenderingFreeType); 4 VTK_MODULE_INIT(vtkInteractionStyle); 5 6 #include <vtkPolyData.h> 7 #include <vtkSphereSource.h> 8 #include <vtkDecimatePro.h> 9 #include <vtkQuadricDecimation.h> 10 #include <vtkQuadricClustering.h> 11 #include <vtkSmartPointer.h> 12 #include <vtkPolyDataMapper.h> 13 #include <vtkProperty.h> 14 #include <vtkRenderWindoh> 15 #include <vtkRenderWindowInteractor.h> 16 #include <vtkRenderer.h> 17 #include <vtkPolydataReader.h> 18 #include <vtkCamera.h> 19 20 //测试文件：../data/fran_cut.vtk 21 int main(int argc, char * argv[]) 22 ; 61 double rightViewport[4] = ; 62 vtkSmartPointer<vtkRenderer> leftRenderer = 64 vtkSmartPointer<vtkRenderer>::New(); 65 leftRenderer>SetViewport(leftViewport); 66 leftRenderer>AddActor(origianlActor); 67 leftRenderer>SetBackground(1.0, 1.0, 1.0); 68 69 vtkSmartPointer<vtkRenderer> rightRenderer = 70 vtkSmartPointer<vtkRenderer>::New(); 71 rightRenderer>SetViewport(rightViewport); 72 rightRenderer>AddActor(decimatedActor); 73 rightRenderer>SetBackground(1.0, 1.0, 1.0); 74 75 leftRenderer>GetActiveCamera()>SetPosition(0, 1, 0); 76 leftRenderer>GetActiveCamera()>SetFocalPoint(0, 0, 0); 77 leftRenderer>GetActiveCamera()>SetViewUp(0, 0, 1); 78 leftRenderer>GetActiveCamera()>Azimuth(30); 79 leftRenderer>GetActiveCamera()>Elevation(30); 80 leftRenderer>ResetCamera(); 81 rightRenderer>SetActiveCamera(leftRenderer>GetActiveCamera()); 82 83 vtkSmartPointer<vtkRenderWindow> renderWindow = 84 vtkSmartPointer<vtkRenderWindow>::New(); 85 renderWindow>AddRenderer(leftRenderer); 86 renderWindow>AddRenderer(rightRenderer); 87 renderWindow>SetSize(640, 320); 88 renderWindow>Render(); 89 renderWindow>SetWindowName("PolyDataDecimation"); 90 91 vtkSmartPointer<vtkRenderWindowInteractor> interactor = 92 vtkSmartPointer<vtkRenderWindowInteractor>::New(); 93 interactor>SetRenderWindow(renderWindow); 94 95 renderWindow>Render(); 96 interactor>Start(); 97 98 return EXIT_SUCCESS; 99 }

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