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| − | 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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| − | int main(int argc, char *argv[])
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| − | {
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| − | vtkSmartPointer<vtkCamera> camera = 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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| − |
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| − | vtkSmartPointer<vtkPlanes> planes = vtkSmartPointer<vtkPlanes>::New();
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| − | planes->SetFrustumPlanes(planesArray);
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| − |
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| − | vtkSmartPointer<vtkFrustumSource> frustumSource = vtkSmartPointer<vtkFrustumSource>::New();
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| − | frustumSource->SetPlanes(planes);
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| − | frustumSource->Update();
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| − |
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| − | vtkPolyData* frustum = frustumSource->GetOutput();
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| − |
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| − | vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
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| − | mapper->SetInput(frustum);
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| − | vtkSmartPointer<vtkActor> actor = 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 = vtkSmartPointer<vtkRenderer>::New();
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| − | vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
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| − | renderWindow->AddRenderer(renderer);
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| − | // an interactor
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| − | vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = 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(1,1,1); // Background color white
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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 0;
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| − | }
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| − | </source>
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| − |
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| − | ==CMakeLists.txt==
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| − | <source lang="text">
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| − | cmake_minimum_required(VERSION 2.6)
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| − |
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| − | PROJECT(Frustum)
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| − | FIND_PACKAGE(VTK REQUIRED)
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| − | INCLUDE(${VTK_USE_FILE})
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| − | ADD_EXECUTABLE(DisplayFrustum DisplayFrustum.cxx)
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| − | TARGET_LINK_LIBRARIES(DisplayFrustum vtkHybrid)
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| − |
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| − | </source>
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