gluDisk

draw a disk

Signature

gluDisk( GLUquadric* ( quad ) , GLdouble ( inner ) , GLdouble ( outer ) , GLint ( slices ) , GLint ( loops ) )-> void
gluDisk( quad , inner , outer , slices , loops ) 
gluDisk( POINTER(GLUquadric)(quad), GLdouble(inner), GLdouble(outer), GLint(slices), GLint(loops) ) -> None

Parameters

VariablesDescription
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 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).

See Also

gluCylinder , gluNewQuadric , gluPartialDisk , gluQuadricOrientation , gluQuadricTexture , gluSphere

Sample Code References

The following code samples have been found which appear to reference the functions described here. Take care that the code may be old, broken or not even use PyOpenGL.

gluDisk
OpenGL-Demo PyOpenGL-Demo/NeHe/lesson18.py Lines: 209
OpenGL-Demo PyOpenGL-Demo/NeHe/lesson23.py Lines: 163
{LGPL} PyMT examples/games/untangle/graph.py Lines: 17, 20
{LGPL} PyMT pymt/graphx/draw.py Lines: 21, 230, 232
{LGPL} pygl2d pygl2d/draw.py Lines: 150
{LGPL or GPL or MPL} Kamaelia Code/Python/Kamaelia/Examples/OpenGL/Checkers/CheckersPiece.py Lines: 55, 58
{LGPL or GPL or MPL} Kamaelia Sketches/CL/Topology3D/THF/Examples/Checkers/CheckersPiece.py Lines: 55, 58
{LGPL or GPL or MPL} Kamaelia Sketches/MPS/BugReports/FixTests/Kamaelia/Examples/OpenGL/Checkers/CheckersPiece.py Lines: 55, 58
{LGPL or GPL or MPL} Kamaelia Sketches/MPS/Examples/Checkers/CheckersPiece.py Lines: 55, 58
{LGPL or GPL or MPL} Kamaelia Sketches/THF/Packages/Examples/Checkers/CheckersPiece.py Lines: 55, 58

Copyright Notices

This documentation is based on documentation licensed under the SGI Free Software License B.

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