BUILT-IN MATHEMATICA SYMBOL

Disk

is a two-dimensional graphics primitive that represents a filled disk of radius r centered at the point x, y.

Disk

gives a disk of radius 1.

Disk

gives a segment of a disk.

Disk

gives an elliptical disk with semiaxes of lengths

and

, oriented parallel to the coordinate axes.

MORE INFORMATION

Angles are measured in radians counterclockwise from the positive x direction.

Disk yields an elliptical disk segment obtained by transforming a circular disk segment with the specified starting and ending angles. »

Scaled or Scaled can be used in the radius specification. The are in scaled coordinates, and the are in ordinary coordinates.

Disk[{x, y}, Scaled[s]] gives a disk of scaled radius s. »

Offset can be used to specify radii in printer's points. »

FaceForm and EdgeForm can be used to specify how the interiors and boundaries of disks should be rendered. The default is that no explicit edge is drawn. »

Individual coordinates, lists of coordinates, and parameters in disks can be Dynamic objects.

Disk is equivalent to Disk. »

EXAMPLES

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Basic Examples (4)

A unit disk:

A disk segment:

An elliptical disk:

Differently styled unit disks:

A unit disk:

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A disk segment:

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An elliptical disk:

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Differently styled unit disks:

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Scope (12)

Specify radii:

Specify centers:

A disk segment:

An elliptical disk:

An elliptical disk segment:

Short form for a unit disk at the origin:

Color directives specify the face colors of disks:

FaceForm and EdgeForm can be used to specify the styles of the interiors and boundaries:

Boundaries of an elliptical disk segment:

Use Scaled coordinates and radii:

Use ImageScaled coordinates and radii:

Use Offset coordinates:

Use Offset to specify the radii in printer's points:

Applications (5)

Use a Disk to annotate a plot of a trig function:

Make a pie chart:

Archimedes' approximation of the circle area:

The square packing of disks:

The hexagonal packing of disks:

Simulation of elliptical gears:

Properties & Relations (4)

Use Rotate to get all possible elliptical disks:

The boundary of a disk defines a circle:

An implicit specification of a disk can be generated using RegionPlot:

A parametric specification of a disk can be generated using ParametricPlot:

Possible Issues (2)

Using Scaled radii will depend on the PlotRange:

Using ImageScaled sizes will depend on the ImageSize and AspectRatio:

Neat Examples (4)

Random disk collections:

A family of disks:

Digital petals:

Yin and yang: