PATTERN

Section: User Commands (1)
Updated: May 15, 1991
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NAME

pattern - generate variant square patterns.  

SYNOPSIS

pattern [-c #] [-r #] [-fr #] [-h #] [-fx #] [-fy #] [-s #] [-w #] [> output]  

DESCRIPTION

pattern generates test images with different patterns for study and analysis.  

OPTIONS

-c #
columns of the pattern image. The default is 256.
-r #
rows of the pattern image. default = 256.
-fr #
frames for repeating output, default = 1.
-h #
starting line height. default = 8.
-f[x, y] #              function number on X or Y axis. The default is
to generate square pattern.
-s #
step of equal difference for function 2. The default is 2.
-w #
starting line width. The default is 8.
functions:
0       square - n, n, n
1       step - 1,2,3, ...
2       equal difference - 1, 4, 7, 10, ... {ed=3 => -s 3}
3       pascal tri-angle
4       power of 2
5       sine
 

EXAMPLE

pattern -w1 -fy 2 -l2 -fx 3 | xhips  

NOTE


The output is a HIPS image.  

SEE ALSO

tuner(1), dcvtob(1), vfft(1), vfftpass(1), vfftfilter(1), inv-vfft(1)  

AUTHOR

Jin, Guojun - LBL 5/1/91


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLE
NOTE
SEE ALSO
AUTHOR

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