gluDisk - draw a disk
void gluDisk( | GLUquadric* | quad, |
| GLfloat | inner, | |
| GLfloat | outer, | |
| GLint | slices, | |
| GLint | loops); |
quadSpecifies the quadrics object (created with gluNewQuadric).
innerSpecifies the inner radius of the disk (may be 0).
outerSpecifies the outer radius of the disk.
slicesSpecifies the number of subdivisions around the z axis.
loopsSpecifies 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, gluNewQuadric, gluPartialDisk, gluQuadricOrientation, gluQuadricTexture, gluSphere.
Copyright c 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.