dotgen man page on IRIX

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DOTGEN(6D)							    DOTGEN(6D)

NAME
     dotgen - make an image of two crossed sinusoidal wave patterns

SYNOPSIS
     dotgen outimage size scalex scaley [-a]

DESCRIPTION
     dotgen generates an image of two crossed sinusoidal wave patterns.	 The
     output image can be used as input to thresh to create halftoned images.
     The output of dotgen is a square image size pixels on a side.  scalex and
     scaley are floating point values that can be used to change the density
     and rotation of the dot pattern.  If they are both integers, the output
     image will match up with its self when it tiles the plane. The -a option
     causes dotgen to take the absolute value of the sum of the two sinusoids.

SEE ALSO
     thresh(6D)

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