gluTessBeginPolygon man page on YellowDog

Man page or keyword search:  
man Server   18644 pages
apropos Keyword Search (all sections)
Output format
YellowDog logo
[printable version]

GLUTESSBEGINPOLYGON(3G)				       GLUTESSBEGINPOLYGON(3G)

NAME
       gluTessBeginPolygon - delimit a polygon description

C SPECIFICATION
       void gluTessBeginPolygon( GLUtesselator* tess,
				 GLvoid* data )

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

       data  Specifies a pointer to user polygon data.

DESCRIPTION
       gluTessBeginPolygon  and	 gluTessEndPolygon delimit the definition of a
       convex,	 concave   or	self-intersecting   polygon.	Within	  each
       gluTessBeginPolygon/gluTessEndPolygon  pair,  there must be one or more
       calls to gluTessBeginContour/gluTessEndContour.	Within	each  contour,
       there  are  zero or more calls to gluTessVertex. The vertices specify a
       closed contour (the last vertex of each contour is automatically linked
       to   the	  first).  See	the  gluTessVertex,  gluTessBeginContour,  and
       gluTessEndContour reference pages for more details.

       data is a pointer to a user-defined data structure. If the  appropriate
       callback(s)  are	 specified (see gluTessCallback), then this pointer is
       returned to the callback function(s). Thus, it is a convenient  way  to
       store per-polygon information.

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

EXAMPLE
       A  quadrilateral	 with a triangular hole in it can be described as fol‐
       lows:

       gluTessBeginPolygon(tobj, NULL);
	gluTessBeginContour(tobj);
	  gluTessVertex(tobj, v1, v1);
	  gluTessVertex(tobj, v2, v2);
	  gluTessVertex(tobj, v3, v3);
	  gluTessVertex(tobj, v4, v4);
	gluTessEndContour(tobj);
	gluTessBeginContour(tobj);
	  gluTessVertex(tobj, v5, v5);
	  gluTessVertex(tobj, v6, v6);
	  gluTessVertex(tobj, v7, v7);
	gluTessEndContour(tobj); gluTessEndPolygon(tobj);

SEE ALSO
       gluNewTess(3G),	     gluTessBeginContour(3G),	    gluTessVertex(3G),
       gluTessCallback(3G),	  gluTessProperty(3G),	    gluTessNormal(3G),
       gluTessEndPolygon(3G)

						       GLUTESSBEGINPOLYGON(3G)
[top]

List of man pages available for YellowDog

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net