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diff --git a/hacks/julia.man b/hacks/julia.man new file mode 100644 index 0000000..4e0f2e8 --- /dev/null +++ b/hacks/julia.man @@ -0,0 +1,81 @@ +.TH XScreenSaver 1 "28-May-97" "X Version 11" +.SH NAME +julia - draws spinning, animating julia-set fractals +.SH SYNOPSIS +.B julia +[\-display \fIhost:display.screen\fP] [\-foreground \fIcolor\fP] [\-background \fIcolor\fP] [\-window] [\-root] [\-mono] [\-install] [\-visual \fIvisual\fP] [\-ncolors \fIinteger\fP] [\-delay \fImicroseconds\fP] [\-cycles \fIinteger\fP] [\-count \fIinteger\fP] + +[\-fps] +.SH DESCRIPTION +The \fIjulia\fP program draws spinning, animating julia-set fractals. + +It uses ifs {w0 = sqrt(x-c), w1 = -sqrt(x-c)} with random iteration +to plot the julia set, and sinusoidially varied parameters for the set, +and plots parameters with a circle. + +One thing to note is that count is the \fIdepth\fP of the search tree, +so the number of points computed is (2^count)-1. I use 8 or 9 on a +dx266 and it looks okay. The sinusoidal variation of the parameter +might not be as interesting as it could, but it still gives an idea +of the effect of the parameter. + +Dragging the mouse in the window uses the mouse's position as the +control point for the generation of ths set. +.SH OPTIONS +.I julia +accepts the following options: +.TP 8 +.B \-window +Draw on a newly-created window. This is the default. +.TP 8 +.B \-root +Draw on the root window. +.TP 8 +.B \-mono +If on a color display, pretend we're on a monochrome display. +.TP 8 +.B \-install +Install a private colormap for the window. +.TP 8 +.B \-visual \fIvisual\fP +Specify which visual to use. Legal values are the name of a visual class, +or the id number (decimal or hex) of a specific visual. +.TP 8 +.B \-ncolors \fIinteger\fP +How many colors should be used (if possible). Default 200. +The colors used cycle through the hue, making N stops around +the color wheel. +.TP 8 +.B \-cycles \fIinteger\fP + +.TP 8 +.B \-count \fIinteger\fP +.TP 8 +.B \-fps +Display the current frame rate and CPU load. +.SH ENVIRONMENT +.PP +.TP 8 +.B DISPLAY +to get the default host and display number. +.TP 8 +.B XENVIRONMENT +to get the name of a resource file that overrides the global resources +stored in the RESOURCE_MANAGER property. +.SH SEE ALSO +.BR X (1), +.BR xscreensaver (1), +.BR xlock (1) +.SH COPYRIGHT +Copyright \(co 1995 by Sean McCullough. + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation. +.SH AUTHOR +Sean McCullough <bankshot@mailhost.nmt.edu>, 1995. + +Ability to run standalone or with \fIxscreensaver\fP added by +Jamie Zawinski <jwz@jwz.org>, 10-May-97. |