CloseWindow
VTKEx/Cxx/Visualization/CloseWindow
Question
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Code¶
CloseWindow.cxx
#include <vtkSmartPointer.h>
#include <vtkActor.h>
#include <vtkCallbackCommand.h>
#include <vtkCommand.h>
#include <vtkCubeSource.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
void KeypressCallbackFunction (
vtkObject* caller,
long unsigned int eventId,
void* clientData,
void* callData );
int main(int, char *[])
{
vtkSmartPointer<vtkCubeSource> cubeSource =
vtkSmartPointer<vtkCubeSource>::New();
cubeSource->Update();
// Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(cubeSource->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);
vtkSmartPointer<vtkCallbackCommand> keypressCallback =
vtkSmartPointer<vtkCallbackCommand>::New();
keypressCallback->SetCallback ( KeypressCallbackFunction );
renderWindowInteractor->AddObserver (
vtkCommand::KeyPressEvent,
keypressCallback );
// Add the actor to the scene
renderer->AddActor(actor);
// Render and interact
renderWindow->Render();
renderWindow->SetWindowName("First Window");
renderWindowInteractor->Start();
std::cout << "Window 1 closed..." << std::endl;
// Make another interactor, but use the same render window
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor2 =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor2->AddObserver (
vtkCommand::KeyPressEvent, keypressCallback );
renderWindowInteractor2->SetRenderWindow(renderWindow);
renderWindow->Render();
renderWindow->SetWindowName("Second Window");
renderWindowInteractor2->Start();
std::cout << "Window 2 closed. Exiting..." << std::endl;
return EXIT_SUCCESS;
}
void KeypressCallbackFunction (
vtkObject* caller,
long unsigned int vtkNotUsed(eventId),
void* vtkNotUsed(clientData),
void* vtkNotUsed(callData) )
{
vtkRenderWindowInteractor *iren =
static_cast<vtkRenderWindowInteractor*>(caller);
// Close the window
iren->GetRenderWindow()->Finalize();
// Stop the interactor
iren->TerminateApp();
std::cout << "Closing window..." << std::endl;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(CloseWindow)
find_package(VTK COMPONENTS
vtkvtkCommonCore
vtkvtkCommonDataModel
vtkvtkFiltersSources
vtkvtkInteractionStyle
vtkvtkRenderingContextOpenGL2
vtkvtkRenderingCore
vtkvtkRenderingFreeType
vtkvtkRenderingGL2PSOpenGL2
vtkvtkRenderingOpenGL2 QUIET)
if (NOT VTK_FOUND)
message("Skipping CloseWindow: ${VTK_NOT_FOUND_MESSAGE}")
return ()
endif()
message (STATUS "VTK_VERSION: ${VTK_VERSION}")
if (VTK_VERSION VERSION_LESS "8.90.0")
# old system
include(${VTK_USE_FILE})
add_executable(CloseWindow MACOSX_BUNDLE CloseWindow.cxx )
target_link_libraries(CloseWindow PRIVATE ${VTK_LIBRARIES})
else ()
# include all components
add_executable(CloseWindow MACOSX_BUNDLE CloseWindow.cxx )
target_link_libraries(CloseWindow PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS CloseWindow
MODULES ${VTK_LIBRARIES}
)
endif ()
Download and Build CloseWindow¶
Click here to download CloseWindow and its CMakeLists.txt file. Once the tarball CloseWindow.tar has been downloaded and extracted,
cd CloseWindow/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:
./CloseWindow
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.