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| | <div class="floatright">[[File:VTK_Examples_Baseline_GeometricObjectsDisplay_TestDisplayFrustum.png]]</div> | | <div class="floatright">[[File:VTK_Examples_Baseline_GeometricObjectsDisplay_TestDisplayFrustum.png]]</div> |
| | This example gets the frustum from a camera and displays it on the screen. | | This example gets the frustum from a camera and displays it on the screen. |
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| − | ==DisplayFrustum.cxx==
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| − | <source lang="cpp">
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| − | #include <vtkFrustumSource.h>
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| − | #include <vtkPolyData.h>
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| − | #include <vtkSmartPointer.h>
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| − | #include <vtkCamera.h>
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| − | #include <vtkPlanes.h>
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| − | #include <vtkMapper.h>
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| − | #include <vtkActor.h>
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| − | #include <vtkRenderWindow.h>
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| − | #include <vtkRenderer.h>
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| − | #include <vtkRenderWindowInteractor.h>
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| − | #include <vtkPolyDataMapper.h>
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| − |
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| − | int main(int, char *[])
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| − | {
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| − | vtkSmartPointer<vtkCamera> camera =
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| − | vtkSmartPointer<vtkCamera>::New();
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| − | double planesArray[24];
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| − |
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| − | camera->GetFrustumPlanes(1, planesArray);
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| − | vtkSmartPointer<vtkPlanes> planes =
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| − | vtkSmartPointer<vtkPlanes>::New();
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| − | planes->SetFrustumPlanes(planesArray);
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| − | vtkSmartPointer<vtkFrustumSource> frustumSource =
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| − | vtkSmartPointer<vtkFrustumSource>::New();
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| − | frustumSource->SetPlanes(planes);
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| − | frustumSource->Update();
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| − | vtkPolyData* frustum = frustumSource->GetOutput();
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| − | vtkSmartPointer<vtkPolyDataMapper> mapper =
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| − | vtkSmartPointer<vtkPolyDataMapper>::New();
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| − | mapper->SetInput(frustum);
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| − | vtkSmartPointer<vtkActor> actor =
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| − | vtkSmartPointer<vtkActor>::New();
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| − | actor->SetMapper(mapper);
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| − | // a renderer and render window
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| − | vtkSmartPointer<vtkRenderer> renderer =
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| − | vtkSmartPointer<vtkRenderer>::New();
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| − | vtkSmartPointer<vtkRenderWindow> renderWindow =
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| − | vtkSmartPointer<vtkRenderWindow>::New();
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| − | renderWindow->AddRenderer(renderer);
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| − | // an interactor
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| − | vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
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| − | vtkSmartPointer<vtkRenderWindowInteractor>::New();
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| − | renderWindowInteractor->SetRenderWindow(renderWindow);
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| − | // add the actors to the scene
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| − | renderer->AddActor(actor);
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| − | renderer->SetBackground( .2, .1, .3); // Background color dark purple
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| − | // render an image (lights and cameras are created automatically)
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| − | renderWindow->Render();
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| − | // begin mouse interaction
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| − | renderWindowInteractor->Start();
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| − | return EXIT_SUCCESS;
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| − | }
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| − |
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| − | </source>
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| | ==CMakeLists.txt== | | ==CMakeLists.txt== |
