CGAL 6.1 - CGAL Basic Viewer

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CGAL::Qt::QApplication_and_basic_viewer Class Reference
Reference Manual » Classes

`#include <CGAL/Qt/Basic_viewer.h>`

## Definition

The class `QApplication_and_basic_viewer` regroups a `Basic_viewer` and Qt `QApplication`.

The `QApplication` is created in the constructor, but started by the `run()` method. This allows for example users to modify the `on_key_pressed` method of the `Basic_viewer` to define their own behavior.

This class requires `CGAL_Qt6`, and is only available if the macro `CGAL_USE_BASIC_VIEWER` is defined. Linking with the cmake target `CGAL::CGAL_Basic_viewer` will link with `CGAL_Qt6` and add the definition `CGAL_USE_BASIC_VIEWER`.

Examples
  Basic_viewer/draw_surface_mesh_small_faces.cpp.

## Public Member Functions
| QApplication_and_basic_viewer (const CGAL::Graphics_scene &gs, const char *title="CGAL Basic Viewer")
| Constructor given a `Graphics_scene` and possibly a title.
void | run ()
| runs the `QApplication`, i.e., open the Qt window. A call to this method is blocking, that is the program continues as soon as the user closes the window.
Basic_viewer & | basic_viewer ()
| returns a reference to the `Basic_viewer` associated with this.