gluPartialDisk man page on Tru64

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gluPartialDisk()					      gluPartialDisk()

NAME
       gluPartialDisk - draw an arc of a disk

SYNOPSIS
       void gluPartialDisk(
	       GLUquadric* quad,
	       GLdouble inner,
	       GLdouble outer,
	       GLint slices,
	       GLint loops,
	       GLdouble start,
	       GLdouble sweep );

PARAMETERS
       Specifies  a quadrics object (created with gluNewQuadric()).  Specifies
       the inner radius of the partial disk (can be 0).	 Specifies  the	 outer
       radius  of  the	partial	 disk.	 Specifies  the number of subdivisions
       around the z axis.  Specifies the number of concentric rings about  the
       origin into which the partial disk is subdivided.  Specifies the start‐
       ing angle, in degrees, of the disk portion.  Specifies the sweep angle,
       in degrees, of the disk portion.

DESCRIPTION
       gluPartialDisk()	 renders a partial disk on the $ z = 0 $ plane. A par‐
       tial disk is similar to a full disk, except that only the subset of the
       disk  from  start through start + sweep is included (where 0 degrees is
       along the +yFoNt axis, 90 degrees along the +x axis, 180 along  the  -y
       axis, and 270 along the -x axis).

       The  partial disk has a radius of outer, and contains a concentric cir‐
       cular hole with a radius of inner.  If inner is 0, then no hole is gen‐
       erated.	The  partial  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 +zside of the partial disk is consid‐
       ered 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 -zaxis.

       If texturing is turned on (with gluQuadricTexture()),  texture  coordi‐
       nates are generated linearly such that where $ r = "outer" $, the value
       at (r, 0, 0) is (1.0, 0.5), at (0, r, 0) it is (0.5, 1.0), at  (-r,  0,
       0) it is (0.0, 0.5), and at (0, -r, 0) it is (0.5, 0.0).

SEE ALSO
       gluCylinder(3), gluDisk(3), gluNewQuadric(3), gluQuadricOrientation(3),
       gluQuadricTexture(3), gluSphere(3)

							      gluPartialDisk()
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