VTK 实例51：三维平面（点）法向量计算

1 #include "vtkAutoInit.h" 2 VTK_MODULE_INIT(vtkRenderingOpenGL2); 3 VTK_MODULE_INIT(vtkInteractionStyle); 4 5 #include <vtkSmartPointer.h> 6 #include <vtkPolyDataReader.h> 7 #include <vtkPolyDataNormals.h> //计算法向量 8 #include <vtkMaskPoints.h> 9 #include <vtkArrowSource.h> 10 #include <vtkGlyph3D.h> 11 #include <vtkPointData.h> 12 #include <vtkProperty.h> 13 // 14 #include <vtkPolyDataMapper.h> 15 #include <vtkActor.h> 16 #include <vtkRenderer.h> 17 #include <vtkRenderWindoh> 18 #include <vtkRenderWindowInteractor.h> 19 20 int main() 21 ; 77 double normView[4] = ; 78 double glyphView[4] = ; 79 vtkSmartPointer<vtkRenderer> origRender = 80 vtkSmartPointer<vtkRenderer>::New(); 81 origRender>SetViewport(origView); 82 origRender>AddActor(actor); 83 origRender>SetBackground(1, 0, 0); 84 vtkSmartPointer<vtkRenderer> normRender = 85 vtkSmartPointer<vtkRenderer>::New(); 86 normRender>SetViewport(normView); 87 normRender>AddActor(normActor); 88 normRender>SetBackground(0, 1, 0); 89 vtkSmartPointer<vtkRenderer> glyphRender = 90 vtkSmartPointer<vtkRenderer>::New(); 91 glyphRender>SetViewport(glyphView); 92 glyphRender>AddActor(glyphActor); 93 glyphRender>AddActor(normActor); 94 glyphRender>SetBackground(0, 0, 1); 95 96 vtkSmartPointer<vtkRenderWindow> rw = 97 vtkSmartPointer<vtkRenderWindow>::New(); 98 rw>AddRenderer(origRender); 99 rw>AddRenderer(normRender); 100 rw>AddRenderer(glyphRender); 101 rw>SetWindowName("Calculating Point Norm & Cell Norm"); 102 rw>SetSize(960, 320); 103 rw>Render(); 104 105 vtkSmartPointer<vtkRenderWindowInteractor> rwi = 106 vtkSmartPointer<vtkRenderWindowInteractor>::New(); 107 rwi>SetRenderWindow(rw); 108 rwi>Initialize(); 109 rwi>Start(); 110 111 return 0; 112 }

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