fglupartialdisk man page on IRIX

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fgluPartialDisk(3G)	       OpenGL Reference		   fgluPartialDisk(3G)

NAME
     fgluPartialDisk - draw an arc of a disk

FORTRAN SPECIFICATION
     SUBROUTINE fgluPartialDisk( CHARACTER*8 quad,
				 REAL*4 inner,
				 REAL*4 outer,
				 INTEGER*4 slices,
				 INTEGER*4 loops,
				 REAL*4 start,
				 REAL*4 sweep )

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

     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
     fgluPartialDisk 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 +y
     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 fgluQuadricOrientation).  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 fgluQuadricTexture), 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).

									Page 1

fgluPartialDisk(3G)	       OpenGL Reference		   fgluPartialDisk(3G)

SEE ALSO
     fgluCylinder, fgluDisk, fgluNewQuadric, fgluQuadricOrientation,
     fgluQuadricTexture, fgluSphere

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