RenderWindowNoUiFile
vtk-examples/Cxx/Qt/RenderWindowNoUiFile
Description¶
This is a very basic example that shows how to create a Qt window. Typically, one would want to design a form in the QtDesigner (this is shown in RenderWindowUISingleInheritance).
Question
If you have a question about this example, please use the VTK Discourse Forum
Code¶
RenderWindowNoUiFile.cxx
#include <QApplication>
#include <vtkActor.h>
#include <vtkGenericOpenGLRenderWindow.h>
#include <vtkNamedColors.h>
#include <vtkNew.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderWindow.h>
#include <vtkRenderer.h>
#include <vtkSphereSource.h>
#include <vtkVersion.h>
#if VTK_VERSION_NUMBER >= 89000000000ULL
#define VTK890 1
#endif
#include <QSurfaceFormat>
#include <QVTKOpenGLNativeWidget.h>
int main(int argc, char** argv)
{
// Needed to ensure appropriate OpenGL context is created for VTK rendering.
QSurfaceFormat::setDefaultFormat(QVTKOpenGLNativeWidget::defaultFormat());
QApplication app(argc, argv);
QVTKOpenGLNativeWidget widget;
vtkNew<vtkNamedColors> colors;
vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
#if VTK890
widget.setRenderWindow(renderWindow);
#else
widget.SetRenderWindow(renderWindow);
#endif
widget.resize(600, 600);
vtkNew<vtkSphereSource> sphereSource;
vtkNew<vtkPolyDataMapper> sphereMapper;
sphereMapper->SetInputConnection(sphereSource->GetOutputPort());
vtkNew<vtkActor> sphereActor;
sphereActor->SetMapper(sphereMapper);
sphereActor->GetProperty()->SetColor(colors->GetColor4d("Tomato").GetData());
vtkNew<vtkRenderer> renderer;
renderer->AddActor(sphereActor);
renderer->SetBackground(colors->GetColor3d("SteelBlue").GetData());
#if VTK890
widget.renderWindow()->AddRenderer(renderer);
widget.renderWindow()->SetWindowName("RenderWindowNoUIFile");
#else
widget.GetRenderWindow()->AddRenderer(renderer);
widget.GetRenderWindow()->SetWindowName("RenderWindowNoUIFile");
#endif
widget.show();
app.exec();
return EXIT_SUCCESS;
}
CMakeLists.txt¶
cmake_minimum_required(VERSION 3.12 FATAL_ERROR)
project(RenderWindowNoUiFile)
find_package(VTK COMPONENTS
vtkCommonColor
vtkCommonCore
vtkFiltersSources
vtkGUISupportQt
vtkInteractionStyle
vtkRenderingContextOpenGL2
vtkRenderingCore
vtkRenderingFreeType
vtkRenderingGL2PSOpenGL2
vtkRenderingOpenGL2
QUIET
)
if (NOT VTK_FOUND)
message("Skipping RenderWindowNoUiFile: ${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(RenderWindowNoUiFile MACOSX_BUNDLE RenderWindowNoUiFile.cxx )
target_link_libraries(RenderWindowNoUiFile PRIVATE ${VTK_LIBRARIES})
else()
# Prevent a "command line is too long" failure in Windows.
set(CMAKE_NINJA_FORCE_RESPONSE_FILE "ON" CACHE BOOL "Force Ninja to use response files.")
add_executable(RenderWindowNoUiFile MACOSX_BUNDLE RenderWindowNoUiFile.cxx )
target_link_libraries(RenderWindowNoUiFile PRIVATE ${VTK_LIBRARIES})
# vtk_module_autoinit is needed
vtk_module_autoinit(
TARGETS RenderWindowNoUiFile
MODULES ${VTK_LIBRARIES}
)
endif()
Download and Build RenderWindowNoUiFile¶
Click here to download RenderWindowNoUiFile and its CMakeLists.txt file. Once the tarball RenderWindowNoUiFile.tar has been downloaded and extracted,
cd RenderWindowNoUiFile/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:
./RenderWindowNoUiFile
WINDOWS USERS
Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.