Function Documentation

◆ add_to_graphics_scene()

#include <CGAL/draw_polygon_2.h>

adds the vertices, edges and faces of p into the given graphic scene gs .

Parameters of the cells are taken from the optional graphics scene options parameter gso . Note that gs is not cleared before being filled (to enable to draw several data structures in the same basic viewer).

Template Parameters

Pwhich must be an instantiation of a CGAL::Polygon_2 <...> . GSOptionsa model of GraphicsSceneOptions concept.

Parameters

pthe 2D polygon to draw. gsthe graphic scene to fill. gsothe graphics scene options parameter.

Advanced

The real declaration of this function template is:

template<class T, class C, class GSOptions>

void CGAL::add_to_graphics_scene(const CGAL::Polygon_2<T, C>& p, CGAL::Graphics_scene& gs, const GSOptions& gso);

◆ draw()

opens a new window and draws a 2D polygon.

Parameters of the drawing are taken from the optional graphics scene options parameter.

A call to this function blocks the execution of the program until the drawing window is closed. This function 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 .

Template Parameters

Pwhich must be an instantiation of a CGAL::Polygon_2 <...> . GSOptionsa model of GraphicsSceneOptions concept.

Parameters

pthe polygon to draw. gsothe graphics scene options parameter.

Advanced

The real declaration of this function template is:

template<class T, class C, class GSOptions>

void CGAL::draw(const CGAL::Polygon_2<T, C>& p, const GSOptions& gso);