HideAllActors
VTKExamples/Cxx/Visualization/HideAllActors
Description¶
Display two spheres, then hide everything and turn the screen red.
Code¶
HideAllActors.cxx
#include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkPolyData.h> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkInteractorStyleTrackballCamera.h> #include <vtkInteractorStyleTrackball.h> int main(int, char *[]) { // Sphere 1 vtkSmartPointer<vtkSphereSource> sphereSource1 = vtkSmartPointer<vtkSphereSource>::New(); sphereSource1->SetCenter(0.0, 0.0, 0.0); sphereSource1->SetRadius(4.0); sphereSource1->Update(); vtkSmartPointer<vtkPolyDataMapper> mapper1 = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper1->SetInputConnection(sphereSource1->GetOutputPort()); vtkSmartPointer<vtkActor> actor1 = vtkSmartPointer<vtkActor>::New(); actor1->SetMapper(mapper1); // Sphere 2 vtkSmartPointer<vtkSphereSource> sphereSource2 = vtkSmartPointer<vtkSphereSource>::New(); sphereSource2->SetCenter(10.0, 0.0, 0.0); sphereSource2->SetRadius(3.0); sphereSource2->Update(); // Create a mapper vtkSmartPointer<vtkPolyDataMapper> mapper2 = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper2->SetInputConnection(sphereSource2->GetOutputPort()); // Create an actor vtkSmartPointer<vtkActor> actor2 = vtkSmartPointer<vtkActor>::New(); actor2->SetMapper(mapper2); // A renderer and render window vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); // An interactor vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Add the actors to the scene renderer->AddActor(actor1); renderer->AddActor(actor2); renderer->SetBackground(1,1,1); // Background color white // Render an image (lights and cameras are created automatically) renderWindow->Render(); vtkSmartPointer<vtkInteractorStyleTrackballCamera> style = vtkSmartPointer<vtkInteractorStyleTrackballCamera>::New(); renderWindowInteractor->SetInteractorStyle( style ); // Begin mouse interaction renderWindowInteractor->Start(); renderer->RemoveAllViewProps(); renderer->SetBackground(1,0,0); renderer->Render(); renderer->ResetCamera(); // Why doesn't the screen turn red until I click/move the mouse? renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(HideAllActors) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(HideAllActors MACOSX_BUNDLE HideAllActors.cxx) target_link_libraries(HideAllActors ${VTK_LIBRARIES})
Download and Build HideAllActors¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download HideAllActors and its CMakeLists.txt file. Once the tarball HideAllActors.tar has been downloaded and extracted,
cd HideAllActors/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./HideAllActors
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.