GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  PETRI (6)

NAME

petri - simulates mold growing in a petri dish

CONTENTS

Synopsis
Description
Options
Environment
X Resources
Bugs
See Also
Copyright
Author

SYNOPSIS

petri [-display host:display.screen] [-foreground color] [-background color] [-window] [-root] [-mono] [-install] [-visual visual] [-delay microseconds] [-size integer] [-mem-throttle amount] [-count integer] [-originalcolors] [-diaglim real] [-anychan real] [-minorchan real] [-instantdeathchan real] [-minlifespeed real] [-maxlifespeed real] [-mindeathspeed real] [-maxdeathspeed real] [-minlifespan integer] [-maxlifespan integer] [-fps]

DESCRIPTION

petri simulates mold growing in a petri dish via a state-heavy grid of automata (vaguely like Conway’s Life, only with much more state per cell).

OPTIONS

petri 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
  Which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.
-delay microseconds
  The interframe delay, in microseconds. Defaults to 10000, resource delay.
-size integer
  The size of a cell in pixels. Defaults to 4, resource size.
-mem-throttle amount
  The maximum amount of memory to consume, specified either in megabytes (suffix "M"), kilobytes (suffix "K"), or bytes (sans suffix). In order to meet the memory requirement, the cell size may be increased. Defaults to 22M, resource memThrottle.
-count integer
  How many different varieties of mold to grow (including Black Death). Defaults to 8, resource count.
-originalcolors
  If specified, indicates that the colors used should be the artist’s original choices (a fixed set of primary and secondary colors). In this case, count must be 8 or less. Defaults to not specified (i.e., false), resource originalcolors.
-diaglim real
  The age limit for diagonal growth as a multiplier of orthogonal growth (range 1..2). 1 means square growth, 1.414 (i.e., sqrt(2)) means approximately circular growth, 2 means diamond growth. Defaults to 1.414, resource diaglim.
-anychan real
  The chance (range 0..1) that at each iteration, one or more new cells will be born. Defaults to 0.0015, resource anychan.
-minorchan real
  The chance (range 0..1) that, given that new cells will be born, that only two will be added (hence being a minor cell birth event). Defaults to 0.5, resource minorchan.
-instantdeathchan real
  The chance (range 0..1) that, given that death and destruction will happen, that instead of using Black Death cells, death will come instantaneously. Defaults to 0.2, resource instantdeathchan.
-minlifespeed real
  The minimum speed for living cells as a fraction of the maximum possible speed (range 0..1). Defaults to 0.04, resource minlifespeed.
-maxlifespeed real
  The maximum speed for living cells as a fraction of the maximum possible speed (range 0..1). Defaults to 0.13, resource maxlifespeed.
-mindeathspeed real
  The minimum speed for Black Death cells as a fraction of the maximum possible speed (range 0..1). Defaults to 0.42, resource mindeathspeed.
-maxdeathspeed real
  The maximum speed for Black Death cells as a fraction of the maximum possible speed (range 0..1). Defaults to 0.46, resource maxdeathspeed.
-minlifespan integer
  The minimum lifespan for a colony, in iterations, before Black Death comes. Defaults to 500, resource minlifespan.
-maxlifespan integer
  The maximum lifespan for a colony, in iterations, before Black Death comes. Defaults to 1500, resource maxlifespan.
-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.

X RESOURCES

There are resource equivalents for each option, noted above.

BUGS

There are no known bugs in petri as of this writing.

SEE ALSO

xscreensaver(1)

COPYRIGHT

Copyright © 1992-2000 by Dan Bornstein.

Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, 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

Dan Bornstein <danfuzz@milk.com>, 06-Jul-2000.
Search for    or go to Top of page |  Section 6 |  Main Index


X Version 11 PETRI (6) 5.12 (15-Sep-2010)

Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.