gluDisk man page on RedHat
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GLUDISK(3G) OpenGL Manual GLUDISK(3G)
NAME
gluDisk - draw a disk
C SPECIFICATION
void gluDisk(GLUquadric* quad, GLdouble inner, GLdouble outer,
GLint slices, GLint loops);
PARAMETERS
quad
Specifies the quadrics object (created with gluNewQuadric()).
inner
Specifies the inner radius of the disk (may be 0).
outer
Specifies the outer radius of the disk.
slices
Specifies the number of subdivisions around the z axis.
loops
Specifies the number of concentric rings about the origin into
which the disk is subdivided.
DESCRIPTION
gluDisk renders a disk on the z = 0 plane. The disk has a radius of
outer and contains a concentric circular hole with a radius of inner.
If inner is 0, then no hole is generated. The disk is subdivided around
the z axis into slices (like pizza slices) and also about the z axis
into rings (as specified by slices and loops, respectively).
With respect to orientation, the +z side of the disk is considered to
be ``outside'' (see gluQuadricOrientation()). This means that if the
orientation is set to GLU_OUTSIDE, then any normals generated point
along the +z axis. Otherwise, they point along the \-z axis.
If texturing has been turned on (with gluQuadricTexture()), texture
coordinates are generated linearly such that where r = outer, the value
at (r, 0, 0) is (1, 0.5), at (0, r, 0) it is (0.5, 1), at (\-r, 0, 0)
it is (0, 0.5), and at (0, \-r, 0) it is (0.5, 0).
SEE ALSO
gluCylinder(), gluNewQuadric(), gluPartialDisk(),
gluQuadricOrientation(), gluQuadricTexture(), gluSphere()
COPYRIGHT
Copyright © 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 03/16/2013 GLUDISK(3G)
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