centos man page for gluendpolygon

GLUBEGINPOLYGON(3G)						   OpenGL Manual					       GLUBEGINPOLYGON(3G)

NAME
       gluBeginPolygon - delimit a polygon description

C SPECIFICATION
       void gluBeginPolygon(GLUtesselator* tess);

C SPECIFICATION
       void gluEndPolygon(GLUtesselator* tess);

PARAMETERS
       tess
	   Specifies the tessellation object (created with gluNewTess()).

DESCRIPTION
       gluBeginPolygon and gluEndPolygon() delimit the definition of a nonconvex polygon. To define such a polygon, first call gluBeginPolygon.
       Then define the contours of the polygon by calling gluTessVertex() for each vertex and gluNextContour() to start each new contour. Finally,
       call gluEndPolygon() to signal the end of the definition. See the gluTessVertex() and gluNextContour() reference pages for more details.

       Once gluEndPolygon() is called, the polygon is tessellated, and the resulting triangles are described through callbacks. See
       gluTessCallback() for descriptions of the callback functions.

NOTES
       This command is obsolete and is provided for backward compatibility only. Calls to gluBeginPolygon are mapped to gluTessBeginPolygon()
       followed by gluTessBeginContour(). Calls to gluEndPolygon() are mapped to gluTessEndContour() followed by gluTessEndPolygon().

EXAMPLE
       A quadrilateral with a triangular hole in it can be described like this:

	   gluBeginPolygon(tobj);
	      gluTessVertex(tobj, v1, v1);
	      gluTessVertex(tobj, v2, v2);
	      gluTessVertex(tobj, v3, v3);
	      gluTessVertex(tobj, v4, v4);
	   gluNextContour(tobj, GLU_INTERIOR);
	      gluTessVertex(tobj, v5, v5);
	      gluTessVertex(tobj, v6, v6);
	      gluTessVertex(tobj, v7, v7);
	   gluEndPolygon(tobj);

SEE ALSO
       gluNewTess(), gluNextContour(), gluTessBeginContour(), gluTessBeginPolygon(), gluTessCallback(), gluTessVertex()

COPYRIGHT
       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see
       http://oss.sgi.com/projects/FreeB/.

AUTHORS
       opengl.org

opengl.org							    06/10/2014						       GLUBEGINPOLYGON(3G)