Function initializeVisualization

src/openpose/gui/gui3D.cpp:381–413

        }

        void initializeVisualization()
        {
            try
            {
                char *my_argv[] = { NULL };
                int my_argc = 0;
                glutInit(&my_argc, my_argv);
                // Setup the size, position, and display mode for new windows
                glutInitWindowSize(WINDOW_WIDTH, WINDOW_HEIGHT);
                glutInitWindowPosition(200, 0);
                // glutSetOption(GLUT_MULTISAMPLE,8);
                // Ideally adding also GLUT_BORDERLESS | GLUT_CAPTIONLESS should fix the problem of disabling the `x`
                // button, but it does not work (tested in Ubuntu)
                // https://stackoverflow.com/questions/3799803/is-it-possible-to-make-a-window-withouth-a-top-in-glut
                glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH | GLUT_MULTISAMPLE);
                // Create and set up a window
                glutCreateWindow(std::string{OPEN_POSE_NAME_AND_VERSION + " - 3-D Display"}.c_str());
                initGraphics();
                glutDisplayFunc(renderMain);
                glutMouseFunc(mouseButton);
                glutMotionFunc(mouseMotion);
                // Only required if glutMainLoop() called
                // glutIdleFunc(idleFunction);
                // Full screen would fix the problem of disabling `x` button
                // glutFullScreen();
                // Key presses
                glutKeyboardFunc(keyPressed);
            }
            catch (const std::exception& e)
            {
                error(e.what(), __LINE__, __FUNCTION__, __FILE__);
            }
        }
    #else
        const std::string USE_3D_RENDERER_ERROR{"OpenPose CMake must be compiled with the `USE_3D_RENDERER` flag in"
            " order to use the 3-D visualization renderer. Alternatively, set 2-D rendering with `--display 2`."};