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Man Pages


Manual Reference Pages  -  QIX (6)

NAME

qix - bounce colored lines around a window

CONTENTS

Synopsis
Description
Options
Environment
See Also
Copyright
Author

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.

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