InteractorStyleUser
VTKExamples/Cxx/Interaction/InteractorStyleUser
Description¶
This style is designed to NOT provide any default functionality. You must specify how to handle every event that you want handled.
Code¶
InteractorStyleUser.cxx
#include <vtkSmartPointer.h> #include <vtkCallbackCommand.h> #include <vtkPolyDataMapper.h> #include <vtkActor.h> #include <vtkRenderWindow.h> #include <vtkRenderer.h> #include <vtkRenderWindowInteractor.h> #include <vtkPolyData.h> #include <vtkSphereSource.h> #include <vtkInteractorStyleUser.h> static void ClickCallbackFunction ( vtkObject* caller, long unsigned int eventId, void* clientData, void* callData ); int main(int, char *[]) { vtkSmartPointer<vtkSphereSource> sphereSource = vtkSmartPointer<vtkSphereSource>::New(); sphereSource->Update(); // Visualize vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New(); mapper->SetInputConnection(sphereSource->GetOutputPort()); vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New(); actor->SetMapper(mapper); vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New(); vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->AddRenderer(renderer); vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); renderWindowInteractor->SetRenderWindow(renderWindow); renderer->AddActor(actor); renderer->SetBackground(1,1,1); // Background color white renderWindow->Render(); vtkSmartPointer<vtkCallbackCommand> clickCallback = vtkSmartPointer<vtkCallbackCommand>::New(); clickCallback->SetCallback(ClickCallbackFunction); renderWindowInteractor->AddObserver ( vtkCommand::LeftButtonPressEvent, clickCallback ); vtkSmartPointer<vtkInteractorStyleUser> style = vtkSmartPointer<vtkInteractorStyleUser>::New(); renderWindowInteractor->SetInteractorStyle(style); renderWindowInteractor->Start(); return EXIT_SUCCESS; } void ClickCallbackFunction (vtkObject *, long unsigned int, void *, void *) { std::cout << "Click callback" << std::endl; // We can get the calling object like this: // vtkRenderWindowInteractor *iren = // static_cast<vtkRenderWindowInteractor*>(caller); }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(InteractorStyleUser) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(InteractorStyleUser MACOSX_BUNDLE InteractorStyleUser.cxx) target_link_libraries(InteractorStyleUser ${VTK_LIBRARIES})
Download and Build InteractorStyleUser¶
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 InteractorStyleUser and its CMakeLists.txt file. Once the tarball InteractorStyleUser.tar has been downloaded and extracted,
cd InteractorStyleUser/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:
./InteractorStyleUser
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.