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GLUPARTIALDISK(3G)			  OpenGL Manual 		       GLUPARTIALDISK(3G)

NAME
       gluPartialDisk - draw an arc of a disk

C SPECIFICATION
       void gluPartialDisk(GLUquadric* quad, GLdouble inner, GLdouble outer, GLint slices,
			   GLint loops, GLdouble start, GLdouble sweep);

PARAMETERS
       quad
	   Specifies a quadrics object (created with gluNewQuadric()).

       inner
	   Specifies the inner radius of the partial disk (can be 0).

       outer
	   Specifies the outer radius of the partial disk.

       slices
	   Specifies the number of subdivisions around the z axis.

       loops
	   Specifies the number of concentric rings about the origin into which the partial disk
	   is subdivided.

       start
	   Specifies the starting angle, in degrees, of the disk portion.

       sweep
	   Specifies the sweep angle, in degrees, of the disk portion.

DESCRIPTION
       gluPartialDisk renders a partial disk on the z = 0 plane. A partial disk is similar to a
       full disk, except that only the subset of the disk from start through start + sweep is
       included (where 0 degrees is along the +\f2y\f axis, 90 degrees along the +x axis, 180
       degrees along the \-y axis, and 270 degrees along the \-x axis).

       The partial 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 partial 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 partial 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 is turned on (with gluQuadricTexture()), texture coordinates are generated
       linearly such that where r = outer, the value at (r, 0, 0) is (1.0, 0.5), at (0, r, 0) it
       is (0.5, 1.0), at (\-r, 0, 0) it is (0.0, 0.5), and at (0, \-r, 0) it is (0.5, 0.0).

SEE ALSO
       gluCylinder(), gluDisk(), gluNewQuadric(), gluQuadricOrientation(), gluQuadricTexture(),
       gluSphere()

COPYRIGHT
       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/.

AUTHORS
       opengl.org

opengl.org				    06/10/2014			       GLUPARTIALDISK(3G)
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