CloseWindow
vtk-examples/Cxx/Visualization/CloseWindow
Question
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Code¶
CloseWindow.cxx
#include <vtkActor.h>
#include <vtkCallbackCommand.h>
#include <vtkCommand.h>
#include <vtkCubeSource.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPolyData.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
namespace {
void KeypressCallbackFunction(vtkObject* caller, long unsigned int eventId,
void* clientData, void* callData);
}
int main(int, char*[])
{
vtkNew<vtkNamedColors> colors;
vtkNew<vtkCubeSource> cubeSource;
cubeSource->Update();
// Create a mapper and actor
vtkNew<vtkPolyDataMapper> mapper;
mapper->SetInputConnection(cubeSource->GetOutputPort());
vtkNew<vtkActor> actor;
actor->SetMapper(mapper);
actor->GetProperty()->SetColor(colors->GetColor3d("MistyRose").GetData());
// Create a renderer, render window, and interactor
vtkNew<vtkRenderer> renderer;
vtkNew<vtkRenderWindow> renderWindow;
renderWindow->AddRenderer(renderer);
vtkNew<vtkRenderWindowInteractor> renderWindowInteractor;
renderWindowInteractor->SetRenderWindow(renderWindow);
vtkNew<vtkCallbackCommand> keypressCallback;
keypressCallback->SetCallback(KeypressCallbackFunction);
renderWindowInteractor->AddObserver(vtkCommand::KeyPressEvent,
keypressCallback);
// Add the actor to the scene
renderer->AddActor(actor);
renderer->SetBackground(colors->GetColor3d("SlateGray").GetData());
// 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
vtkNew<vtkRenderWindowInteractor> renderWindowInteractor2;
renderWindowInteractor2->AddObserver(vtkCommand::KeyPressEvent,
keypressCallback);
// Note: We can change actor and background colors for the second window.
actor->GetProperty()->SetColor(
colors->GetColor3d("BlanchedAlmond").GetData());
renderer->SetBackground(colors->GetColor3d("DarkSlateGray").GetData());
renderWindowInteractor2->SetRenderWindow(renderWindow);
renderWindow->Render();
renderWindow->SetWindowName("Second Window");
renderWindowInteractor2->Start();
std::cout << "Window 2 closed. Exiting..." << std::endl;
return EXIT_SUCCESS;
}
namespace {
void KeypressCallbackFunction(vtkObject* caller,
long unsigned int vtkNotUsed(eventId),
void* vtkNotUsed(clientData),
void* vtkNotUsed(callData))
{
auto iren = static_cast<vtkRenderWindowInteractor*>(caller);
// Close the window
iren->GetRenderWindow()->Finalize();
// Stop the interactor
iren->TerminateApp();
std::cout << "Closing window..." << std::endl;
}
} // namespace
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(CloseWindow)
find_package(VTK COMPONENTS
vtkCommonColor
vtkCommonCore
vtkCommonDataModel
vtkFiltersSources
vtkInteractionStyle
vtkRenderingContextOpenGL2
vtkRenderingCore
vtkRenderingFreeType
vtkRenderingGL2PSOpenGL2
vtkRenderingOpenGL2
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.