vtk+四面体构建+线框

 

 

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int main() {     int i;     static float x[8][3] = {         {0,0,0},{1,0,0},{1,1,0},{0,1,0},         {0,0,1},{1,0,1},{1,1,1},{0,1,1}     };       static vtkIdType pts[6][4] = {         {0,1,2,3},{4,5,6,7},{0,1,5,4},         {1,2,6,5},{2,3,7,6},{3,0,4,7}     };     vtkNew<vtkPolyData> cube;     vtkNew<vtkPoints> points;     vtkNew<vtkCellArray> polys;     vtkNew<vtkFloatArray> scalars;     vtkNew<vtkCellArray> lines;         //for (int i = 0; i < 8; i++) points->InsertPoint(i, x[i]);     //for (int i = 0; i < 6; i++) polys->InsertNextCell(4, pts[i]);     //for (int i = 0; i < 8; i++) scalars->InsertTuple1(i, i);       //cube->SetPoints(points);     //cube->SetPolys(polys);     ////cube->GetPointData()->SetScalars(scalars);       //上底     for (int i = 0; i < 8; i++) points->InsertPoint(i, x[i]);     lines->InsertNextCell(5);     for (unsigned long i = 0; i < 4; ++i) {         lines->InsertCellPoint(i);     }     lines->InsertCellPoint(0);     //下底     lines->InsertNextCell(5);     for (unsigned long i = 0; i < 4; ++i) {         lines->InsertCellPoint(i + 4);     }     lines->InsertCellPoint(4);       //四周     for (int i = 0; i < 4; i++) {         lines->InsertNextCell(2);         lines->InsertCellPoint(i);         lines->InsertCellPoint(i + 4);     }       cube->SetPoints(points);     cube->SetLines(lines);         vtkNew<vtkPolyDataMapper> cubeMapper;     cubeMapper->SetInputData(cube);     cubeMapper->SetScalarRange(0, 7);     vtkNew<vtkActor> cubeActor;     cubeActor->SetMapper(cubeMapper);     vtkNew<vtkCamera> camera;     camera->SetPosition(1, 1, 1);     camera->SetFocalPoint(0, 0, 0);     vtkNew<vtkRenderer> renderer;     vtkNew<vtkRenderWindow> renWin;     renWin->AddRenderer(renderer);     vtkNew<vtkRenderWindowInteractor> iren;     iren->SetRenderWindow(renWin);     renderer->AddActor(cubeActor);     renderer->SetActiveCamera(camera);     renderer->ResetCamera();     renderer->SetBackground(1, 0, 1);     renWin->SetSize(300, 300);     renWin->Render();       iren->Initialize();     iren->Start();     return 0; }

 参考：https://blog.csdn.net/liushao1031177/article/details/120642543