1GLUDISK(3G)                                                        GLUDISK(3G)
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NAME

6       gluDisk - draw a disk
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C SPECIFICATION

10       void gluDisk( GLUquadric* quad,
11                     GLdouble inner,
12                     GLdouble outer,
13                     GLint slices,
14                     GLint loops )
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PARAMETERS

18       quad    Specifies the quadrics object (created with gluNewQuadric).
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20       inner   Specifies the inner radius of the disk (may be 0).
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22       outer   Specifies the outer radius of the disk.
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24       slices  Specifies the number of subdivisions around the z axis.
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26       loops   Specifies  the number of concentric rings about the origin into
27               which the disk is subdivided.
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DESCRIPTION

30       gluDisk renders a disk on the z = 0 plane. The disk  has  a  radius  of
31       outer,  and contains a concentric circular hole with a radius of inner.
32       If inner is 0, then no hole is generated. The disk is subdivided around
33       the  z  axis into slices (like pizza slices), and also about the z axis
34       into rings (as specified by slices and loops, respectively).
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36       With respect to orientation, the +z side of the disk is  considered  to
37       be  "outside" (see gluQuadricOrientation).  This means that if the ori‐
38       entation is set to GLU_OUTSIDE, then any normals generated point  along
39       the +z axis. Otherwise, they point along the -z axis.
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41       If texturing has been turned on (with gluQuadricTexture), texture coor‐
42       dinates are generated linearly such that where r=outer,  the  value  at
43       (r, 0, 0) is (1, 0.5), at (0, r, 0) it is (0.5, 1), at (-r, 0, 0) it is
44       (0, 0.5), and at (0, -r, 0) it is (0.5, 0).
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SEE ALSO

47       gluCylinder(3G),         gluNewQuadric(3G),         gluPartialDisk(3G),
48       gluQuadricOrientation(3G), gluQuadricTexture(3G), gluSphere(3G)
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52                                                                   GLUDISK(3G)