1anemotaxis(6x)                XScreenSaver manual               anemotaxis(6x)
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NAME

6       anemotaxis - directional search on a plane.
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SYNOPSIS

9       anemotaxis  [-display  host:display.screen]  [-visual visual] [-window]
10       [-root]  [-delay   number]   [-distance   number]   [-sources   number]
11       [-searchers number] [-fps]
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DESCRIPTION

14       The  program  demonstrates  a  search algorithm designed for locating a
15       source of odor in turbulent atmosphere. The odor is convected  by  wind
16       which  has  a  constant  mean direction and fluctuations around it. The
17       searcher is able to sense the odor and  determine  local  instantaneous
18       wind  direction.  The  goal  is to find the source in the shortest mean
19       time.  Some animals face this task to find mates, food, home etc.  They
20       exhibit very particular, zigzagging search trajectories.
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22       This  is modeled as a search on a discrete two-dimensional lattice. The
23       source releases particles that drift  with  constant  velocity  in  one
24       direction  and walk randomly in the other direction. The searcher knows
25       if it hit a particle, and if so, particle's position one time step ear‐
26       lier  (local  wind direction). The program paints sources and particles
27       released by them as well as trajectories of searchers who are trying to
28       capture the sources.
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OPTIONS

31       -visual visual
32               Specify  which  visual  to use.  Legal values are the name of a
33               visual class, or the id number (decimal or hex) of  a  specific
34               visual.
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36       -window Draw on a newly-created window.  This is the default.
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38       -root   Draw on the root window.
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40       -delay number
41               Per-frame  delay,  in  microseconds.  Default: 20000 (0.02 sec‐
42               onds.).
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44       -distance number
45               Max initial distance to the source .  10 - 250.  Default: 40.
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47       -sources number
48               Max number of sources.  Default: 25.
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50       -searchers number
51               Max number of searchers. Default: 25.
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53       -fps    Display the current frame rate and CPU load.
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ENVIRONMENT

56       DISPLAY to get the default host and display number.
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58       XENVIRONMENT
59               to get the name of a resource file that  overrides  the  global
60               resources stored in the RESOURCE_MANAGER property.
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SEE ALSO

63       X(1), xscreensaver(1)
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66       Copyright © 2004 by Eugene Balkovsky.  Permission to use, copy, modify,
67       distribute, and sell this software and its documentation for  any  pur‐
68       pose  is  hereby granted without fee, provided that the above copyright
69       notice appear in all copies and that both  that  copyright  notice  and
70       this  permission  notice appear in supporting documentation.  No repre‐
71       sentations are made about the suitability of this software for any pur‐
72       pose.  It is provided "as is" without express or implied warranty.
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AUTHOR

75       Eugene Balkovsky
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79X Version 11               5.42-1.fc29 (30-Dec-2018)            anemotaxis(6x)
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