UserEvent
VTKExamples/Cxx/Interaction/UserEvent
Code¶
UserEvent.cxx
#include <vtkSphereSource.h> #include <vtkCallbackCommand.h> #include <vtkCommand.h> #include <vtkPolyData.h> #include <vtkSmartPointer.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include "vtkTestFilter.h" static void CallbackFunction(vtkObject* caller, long unsigned int eventId, void* clientData, void* callData ); int main(int, char *[]) { // 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); vtkSmartPointer<vtkTestFilter> filter = vtkSmartPointer<vtkTestFilter>::New(); vtkSmartPointer<vtkCallbackCommand> callback = vtkSmartPointer<vtkCallbackCommand>::New(); callback->SetCallback(CallbackFunction ); filter->AddObserver(filter->RefreshEvent, callback); filter->Update(); renderWindow->Render(); renderWindowInteractor->Start(); return EXIT_SUCCESS; } void CallbackFunction(vtkObject* caller, long unsigned int eventId, void* clientData, void* callData ) { std::cout << "CallbackFunction called." << std::endl; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(UserEvent) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(UserEvent MACOSX_BUNDLE UserEvent.cxx) target_link_libraries(UserEvent ${VTK_LIBRARIES})
Download and Build UserEvent¶
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 Some tarballs may be missing or out-of-date.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 UserEvent and its CMakeLists.txt file. Once the tarball UserEvent.tar has been downloaded and extracted,
cd UserEvent/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:
./UserEvent
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.