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 orienta‐
       tion 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 coor‐
       dinates 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

                                                                    GLUDISK(3G)