Ubuntu Feisty 7.04 manual page repository

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Provided by: xscreensaver-data-extra_4.24-5ubuntu2_i386

 

NAME

        substrate - Grow crystal-like lines on a computational substrate
 

SYNOPSIS

        substrate  [-display  host:display.screen]  [-foreground color] [-back‐
        ground  color]  [-wireframe]  [-max-cycles  cyclecount]  [-growth-delay
        delayms]     [-initial-cracks    numinitial]    [-max-cracks    nummax]
        [-sand-grains numgrains] [-circle-percent circlepercent]
 

DESCRIPTION

        Lines like crystals grow on a computational substrate.  A  simple  per‐
        pendicular growth rule creates intricate city-like structures.  Option‐
        ally, cracks may also be circular, producing a cityscape more  familiar
        to places for which city planning is a distant, theoretical concern.
 
http://complexification.net
 

OPTIONS

        substrate accepts the following options:
 
        -wireframe (Default: False)
                Don’t  draw  sand-painting  colored  effects, only make a wire‐
                frame.
 
        -max-cycles cyclecount (Default: 10000)
                Maximum number of growth cycles before restarting.  The  higher
                this is, the more complex the art.
 
        -growth-delay delayms (Default: 18000)
                Delay  in  ms  between  growth cycles.  More delay, slower (but
                smoother and less CPU intensive) art.
 
        -initial-cracks numinitial (Default: 3)
                Initial number of cracks in the substrate
 
        -max-cracks nummax (Default: 100)
                Maximum number of cracks in the substrate at a single time
 
        -sand-grains numgrains (Default: 64)
                Number of sand grains dropped  during  coloring.   More  grains
                cause a denser colour but use more cpu power.
 
        -circle-percent circlepercent (Default: 0)
                The percentage of the cracks will be circular.
 

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.
xscreensaver(1)
 

COPYRIGHT

        Copyright  ©  2003   by   J.   Tarbell   (complex@complexification.net,
http://www.complexification.net).
 
        Ported  to  XScreensaver  2004  by  Mike  Kershaw  (dragorn@kismetwire‐
        less.net)
 

AUTHOR

        J. Tarbell <complex@complexification.net>, Jun-03
 
        Mike Kershaw <dragorn@kismetwireless.net>, Oct-04
 

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