```     NAME
gluPartialDisk - draw	an arc of a disk

C SPECIFICATION
GLdouble	inner,
GLdouble	outer,
GLint slices,
GLint loops,
GLdouble	start,
GLdouble	sweep )

PARAMETERS

inner	  Specifies the	inner radius of	the partial disk (can
be 0).

outer	  Specifies the	outer radius of	the partial disk.

slices  Specifies the	number of subdivisions around the z
axis.

loops	  Specifies the	number of concentric rings about the
origin into which the	partial	disk is	subdivided.

start	  Specifies the	starting angle,	in degrees, of the
disk portion.

sweep	  Specifies the	sweep angle, in	degrees, of the	disk
portion.

DESCRIPTION
gluPartialDisk renders a partial disk	on the z=0 plane. A
partial 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 +y 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 circular hole with	a radius of inner. If inner is
0, then no hole is generated.	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 +z side of the partial 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 is turned on (with gluQuadricTexture), texture
coordinates 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).

```