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XScreenSaver(1)						       XScreenSaver(1)

       nerverot - induces edginess in the viewer

       nerverot	 [-display  host:display.screen]  [-foreground	color] [-back‐
       ground color] [-window] [-root]	[-mono]	 [-install]  [-visual  visual]
       [-db] [-no-db] [-colors integer] [-delay microseconds] [-count integer]
       [-line-width integer]  [-event-chance  fraction]	 [-iter-amt  fraction]
       [-nervousness fraction] [-max-nerve-radius fraction] [-min-radius inte‐
       ger] [-max-radius integer] [-min-scale fraction] [-max-scale fraction]

       The goal of nerverot is to be interesting and compelling to watch,  yet
       induce  a  state	 of  nervous  edginess	in  the	 viewer.  This manpage
       describes v1.2 of the program.

       nerverot accepts the following options:

       -window Draw on a newly-created window.	This is the default.

       -root   Draw on the root window.

       -mono   If on a color display, pretend we're on a monochrome display.

	       Install a private colormap for the window.

       -visual visual
	       Which visual to use.  Legal values are the  name	 of  a	visual
	       class, or the id number (decimal or hex) of a specific visual.

       -db     -no-db  Use  double-buffering  (or  not, respectively). Double-
	       buffering may make things look better for  larger  line	widths
	       and/or  larger  numbers	of  blots,  but "better" may equate to
	       yielding less of the desired edginess effect. You'll be	calmer
	       after  watching the double-buffered variant; you're more likely
	       to go into epileptic fits with it off. Hence, it is off (false)
	       by default, resource doubleBuffer.

       -colors integer
	       How many colors should be used (if possible). The colors form a
	       smooth ramp between two randomly-chosen colors. Defaults to  4,
	       resource colors.

       -delay microseconds
	       The  interframe	delay,	in  microseconds.  Defaults  to 10000,
	       resource delay.

       -count integer
	       How many "blots" to draw at a time. This number may be  rounded
	       down to fit the particularly chosen model, and has a fixed min‐
	       imum per-model.	Defaults to 250, resource count.

       -line-width integer
	       The width of the lines to draw. 0  means	 an  optimized	pixel-
	       thick line.  Defaults to 0, resource lineWidth.

       -event-chance fraction
	       The  chance,  per iteration, for a life-altering event to occur
	       (such as picking a new rotation target),	 in  the  range	 0..1.
	       Defaults to 0.2, resource eventChance.

       -iter-amt fraction
	       The  fraction  of  movement  towards a target (such as rotation
	       angle or scale) that happens per iteration, in the range	 0..1.
	       Defaults to 0.01, resource terAmt.

       -nervousness fraction
	       How  nervous  the  drawing  is,	in the range 0..1. This is how
	       jumpy the points on each blot are. Defaults  to	0.3,  resource

       -max-nerve-radius fraction
	       The  maximum  radius  of blot nervousness, as a fraction of the
	       radius of the  blot,  in	 the  range  0..1.  Defaults  to  0.7,
	       resource maxNerveRadius.

       -min-radius integer
	       The minimum radius for a blot, in the range 1..100. Defaults to
	       3, resource minRadius.

       -max-radius integer
	       The maximum radius for a blot, in the range 1..100. Defaults to
	       25, resource maxRadius.

       -min-scale fraction
	       The minimum overall scale of drawing, as a fraction of min(win‐
	       dowHeight,windowWidth), in the range 0..10.  Defaults  to  0.6,
	       resource minScale.

       -max-scale fraction
	       The maximum overall scale of drawing, as a fraction of min(win‐
	       dowHeight,windowWidth), in the range 0..10. Defaults  to	 1.75,
	       resource maxScale.

       DISPLAY to get the default host and display number.

	       to  get	the  name of a resource file that overrides the global
	       resources stored in the RESOURCE_MANAGER property.

       There are resource equivalents for each option, noted above.

       nerverot should have more models.


       Copyright © 2000 by Dan Bornstein.

       Permission to use, copy, modify, distribute, and sell this software and
       its  documentation  for any purpose is hereby granted without fee, pro‐
       vided that the above copyright notice appear in	all  copies  and  that
       both  that  copyright  notice and this permission notice appear in sup‐
       porting documentation.  No representations are made about the suitabil‐
       ity  of	this software for any purpose.	It is provided "as is" without
       express or implied warranty.

       Dan Bornstein <>, 05-Jul-2000.

X Version 11			  11-Aug-2000		       XScreenSaver(1)

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