1GLUPARTIALDISK(3G)                                          GLUPARTIALDISK(3G)
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NAME

6       gluPartialDisk - draw an arc of a disk
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C SPECIFICATION

10       void gluPartialDisk( GLUquadric* quad,
11                            GLdouble inner,
12                            GLdouble outer,
13                            GLint slices,
14                            GLint loops,
15                            GLdouble start,
16                            GLdouble sweep )
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PARAMETERS

20       quad    Specifies a quadrics object (created with gluNewQuadric).
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22       inner   Specifies the inner radius of the partial disk (can be 0).
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24       outer   Specifies the outer radius of the partial disk.
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26       slices  Specifies the number of subdivisions around the z axis.
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28       loops   Specifies  the number of concentric rings about the origin into
29               which the partial disk is subdivided.
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31       start   Specifies the starting angle, in degrees, of the disk portion.
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33       sweep   Specifies the sweep angle, in degrees, of the disk portion.
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DESCRIPTION

36       gluPartialDisk renders a partial disk on the z=0 plane. A partial  disk
37       is similar to a full disk, except that only the subset of the disk from
38       start through start + sweep is included (where 0 degrees is  along  the
39       +yaxis,  90  degrees  along the +x axis, 180 degrees along the -y axis,
40       and 270 degrees along the -x axis).
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42       The partial disk has a radius of outer, and contains a concentric  cir‐
43       cular  hole with a radius of inner. If inner is 0, then no hole is gen‐
44       erated. The partial disk is subdivided around the z  axis  into  slices
45       (like pizza slices), and also about the z axis into rings (as specified
46       by slices and loops, respectively).
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48       With respect to orientation, the +z side of the partial disk is consid‐
49       ered to be outside (see gluQuadricOrientation).  This means that if the
50       orientation is set to GLU_OUTSIDE, then  any  normals  generated  point
51       along the +z axis. Otherwise, they point along the -z axis.
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53       If texturing is turned on (with gluQuadricTexture), texture coordinates
54       are generated linearly such that where r=outer, the value at (r, 0,  0)
55       is (1.0, 0.5), at (0, r, 0) it is (0.5, 1.0), at (-r, 0, 0) it is (0.0,
56       0.5), and at (0, -r, 0) it is (0.5, 0.0).
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SEE ALSO

59       gluCylinder(3G),            gluDisk(3G),             gluNewQuadric(3G),
60       gluQuadricOrientation(3G), gluQuadricTexture(3G), gluSphere(3G)
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65                                                            GLUPARTIALDISK(3G)