bionic (6) qix.6x.gz

NAME

       qix - bounce colored lines around a window

SYNOPSIS

       qix  [-display  host:display.screen]  [-foreground  color]  [-background color] [-window] [-root] [-mono]
       [-install] [-visual visual] [-segments int] [-spread pixels] [-size pixels]  [-count  int]  [-color-shift
       degrees]   [-delay   usecs]  [-random]  [-linear]  [-solid]  [-hollow]  [-xor]  [-no-xor]  [-transparent]
       [-non-transparent] [-additive] [-subtractive] [-poly int] [-gravity] [-no-gravity] [-fps]

DESCRIPTION

       The qix program bounces a series of line segments around its  window.   This  is  truly  the  swiss  army
       chainsaw of qix programs.  If you know of one with more display modes, I want to know about it.

OPTIONS

       qix 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
               Install a private colormap for the window.

       -visual visual
               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.

       -segments integer
               How many line segments should be drawn.  Default 50.

       -spread integer
               How far apart the endpoints of one segment should be from the next.  Default 8.

       -size integer
               The maximum distance one endpoint of a segment is allowed to be from the  opposite  end  of  that
               segment.  Default 0, meaning unlimited.

       -count integer
               How many qixes to draw.  Default 1.

       -color-shift degrees
               If  on  a  color  display,  the color of the line segments will cycle through the spectrum.  This
               specifies how far the hue of each segment should be from the next, in degrees on the  HSV  wheel.
               Default 3.

       -delay microseconds
               How much of a delay should be introduced between steps of the animation.  Default 10000, or about
               0.01 seconds.

       -random The qix will wander around the screen semi-randomly.  This is the default.

       -linear The opposite of -random: the qix will travel in straight lines until it reaches a wall, and  then
               it will bounce.

       -solid  If  this  is  specified,  then  the  area  between  the  line segments will be filled in with the
               appropriate color, instead of the qix simply being  composed  of  one-pixel-wide  line  segments.
               This option looks really good in color.

       -hollow The opposite of -solid; this is the default.

       -xor    If this is specified, then qix segments will be drawn and erased with xor, instead of being drawn
               in some color and erased in the background color.  This implies -mono, in that  only  two  colors
               can be used.

       -transparent
               If this is specified, and -count is greater than 1, then each qix will be drawn in one color, and
               when they overlap, the colors will be mixed.  This looks best in conjunction with -solid.

       -non-transparent
               Turns off -transparent.

       -additive
               If -transparent is specified, then this option means that the  colors  will  be  mixed  using  an
               additive color model, as if the qixes were projected light.  This is the default.

       -subtractive
               If  -transparent  is  specified,  then  this  option  means that the colors will be mixed using a
               subtractive color model, as if the qixes were translucent filters.

       -poly int
               How many vertices each qix-line should have: the default is 2, meaning the traditional  qix  line
               shape.  Three will yield triangles, and so on.

       -gravity

       -no-gravity
               Whether there should be downward attraction.  For example, the options -gravity -linear will make
               everything move in nice smooth parabolas.  Gravity is off by default.

       -fps    Display the current frame rate and CPU load.

ENVIRONMENT

       DISPLAY to get the default host and display number.

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

SEE ALSO

       X(1), xscreensaver(1)

COPYRIGHT

       Copyright  © 1992 by Jamie Zawinski.  Permission to use, copy, modify, distribute, and sell this software
       and its documentation for any purpose is hereby granted without fee, provided that  the  above  copyright
       notice  appear  in  all  copies  and that both that copyright notice and this permission notice appear in
       supporting documentation.  No representations are made about the suitability of  this  software  for  any
       purpose.  It is provided "as is" without express or implied warranty.

AUTHOR

       Jamie Zawinski <jwz@jwz.org>, 13-aug-92.

       Thanks to Ariel Scolnicov for the -poly and -gravity options.