CommandSubclass
VTKExamples/Cxx/Utilities/CommandSubclass
Code¶
CommandSubclass.cxx
#include <vtkSmartPointer.h> #include <vtkObjectFactory.h> #include <vtkSphereSource.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkCommand.h> class CommandSubclass2 : public vtkCommand { public: vtkTypeMacro(CommandSubclass2, vtkCommand); static CommandSubclass2 *New() { return new CommandSubclass2; } void Execute(vtkObject *vtkNotUsed(caller), unsigned long vtkNotUsed(eventId), void *vtkNotUsed(callData)) { std::cout << "timer callback" << std::endl; } }; int main(int, char *[]) { // Create a sphere vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->Update(); // Create a mapper and actor vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(sphereSource->GetOutputPort()); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); // Create a renderer, render window, and interactor vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); // Initialize must be called prior to creating timer events. renderWindowInteractor->Initialize(); renderWindowInteractor->CreateRepeatingTimer(500); vtkSmartPointer<CommandSubclass2> timerCallback = vtkSmartPointer<CommandSubclass2>::New(); renderWindowInteractor->AddObserver ( vtkCommand::TimerEvent, timerCallback ); // Add the actor to the scene renderer->AddActor(actor); renderer->SetBackground(1,1,1); // Background color white // Render and interact renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(CommandSubclass) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(CommandSubclass MACOSX_BUNDLE CommandSubclass.cxx) target_link_libraries(CommandSubclass ${VTK_LIBRARIES})
Download and Build CommandSubclass¶
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 Some tarballs may be missing or out-of-date.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 CommandSubclass and its CMakeLists.txt file. Once the tarball CommandSubclass.tar has been downloaded and extracted,
cd CommandSubclass/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:
./CommandSubclass
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.