mojave man page for glutessbeginpolygon

Query: glutessbeginpolygon

OS: mojave

Section: 3g

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

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 follows: 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, gluTessBeginContour, gluTessVertex, gluTessCallback, gluTessProperty, gluTessNormal, gluTessEndPolygon GLUTESSBEGINPOLYGON(3G)
Related Man Pages
glutessendpolygon(3g) - mojave
glutessbeginpolygon(3g) - redhat
glutessbeginpolygon(3g) - xfree86
glutessendpolygon(3g) - suse
glutessbeginpolygon(3g) - osx
Similar Topics in the Unix Linux Community
Split large xml into mutiple files and with header and footer in file
Instructions to Clear Data Cache in Safari, Chrome, Firefox, Opera Browsers (Pictures)
Shopt -s histappend
Cannot extract libraries using sed
Python 3.8.0rc1 released.