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
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.