1julia(6x)                     XScreenSaver manual                    julia(6x)
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NAME

6       julia - draws spinning, animating julia-set fractals
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SYNOPSIS

9       julia  [-display  host:display.screen] [-foreground color] [-background
10       color] [-window] [-root] [-mono] [-install] [-visual visual]  [-ncolors
11       integer] [-delay microseconds] [-cycles integer] [-count integer]
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13       [-fps]
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DESCRIPTION

16       The julia program draws spinning, animating julia-set fractals.
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18       It  uses ifs {w0 = sqrt(x-c), w1 = -sqrt(x-c)} with random iteration to
19       plot the julia set, and sinusoidially varied parameters  for  the  set,
20       and plots parameters with a circle.
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22       One thing to note is that count is the depth of the search tree, so the
23       number of points computed is (2^count)-1.  I use 8 or 9 on a dx266  and
24       it  looks okay.  The sinusoidal variation of the parameter might not be
25       as interesting as it could, but it still gives an idea of the effect of
26       the parameter.
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28       Dragging  the mouse in the window uses the mouse's position as the con‐
29       trol point for the generation of ths set.
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OPTIONS

32       julia accepts the following options:
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34       -window Draw on a newly-created window.  This is the default.
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36       -root   Draw on the root window.
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38       -mono   If on a color display, pretend we're on a monochrome display.
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40       -install
41               Install a private colormap for the window.
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43       -visual visual
44               Specify which visual to use.  Legal values are the  name  of  a
45               visual  class,  or the id number (decimal or hex) of a specific
46               visual.
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48       -ncolors integer
49               How many colors should be used  (if  possible).   Default  200.
50               The  colors  used  cycle through the hue, making N stops around
51               the color wheel.
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53       -cycles integer
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56       -count integer
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58       -fps    Display the current frame rate and CPU load.
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ENVIRONMENT

61       DISPLAY to get the default host and display number.
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63       XENVIRONMENT
64               to get the name of a resource file that  overrides  the  global
65               resources stored in the RESOURCE_MANAGER property.
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SEE ALSO

68       X(1), xscreensaver(1), xlock(1)
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71       Copyright © 1995 by Sean McCullough.
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73       Permission  to  use, copy, modify, and distribute this software and its
74       documentation for any purpose and without fee is hereby  granted,  pro‐
75       vided  that  the  above  copyright notice appear in all copies and that
76       both that copyright notice and this permission notice  appear  in  sup‐
77       porting documentation.
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AUTHOR

80       Sean McCullough <bankshot@mailhost.nmt.edu>, 1995.
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82       Ability  to run standalone or with xscreensaver added by Jamie Zawinski
83       <jwz@jwz.org>, 10-May-97.
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87X Version 11               5.42-1.fc29 (30-Dec-2018)                 julia(6x)
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