gluTessEndPolygon - delimit a polygon description
C SPECIFICATION
void gluTessEndPolygon( GLUtesselator* tess )
PARAMETERS
tess Specifies the tessellation object (created with
gluNewTess).
DESCRIPTION
gluTessBeginPolygon and gluTessEndPolygon delimit the def-
inition 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.
Once gluTessEndPolygon is called, the polygon is tessel-
lated, 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 like this:
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);
gluTessCallback, gluTessProperty, gluTessNormal,
gluTessBeginPolygon
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