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Table of Contents
gluDisk - draw a disk
void gluDisk( GLUquadric* quad,
GLdouble inner,
GLdouble outer,
GLint slices,
GLint loops )
eqn not supported
- 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.
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).
gluCylinder(3G)
, gluNewQuadric(3G)
,
gluPartialDisk(3G)
, gluQuadricOrientation(3G)
, gluQuadricTexture(3G)
,
gluSphere(3G)
Table of Contents
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