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] [--window-id  number]  [--delay  number]  [--distance  number]
11       [--sources number] [--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  di‐
24       rection and walk randomly in the other direction. The searcher knows if
25       it hit a particle, and if so, particle's position one time step earlier
26       (local  wind  direction).  The program paints sources and particles re‐
27       leased 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
37               Draw on a newly-created window.  This is the default.
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39       --root  Draw on the root window.
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41       --window-id number
42               Draw on the specified window.
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44       --delay number
45               Per-frame  delay,  in  microseconds.  Default: 20000 (0.02 sec‐
46               onds.).
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48       --distance number
49               Max initial distance to the source .  10 - 250.  Default: 40.
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51       --sources number
52               Max number of sources.  Default: 25.
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54       --searchers number
55               Max number of searchers. Default: 25.
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57       --fps   Display the current frame rate and CPU load.
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ENVIRONMENT

60       DISPLAY to get the default host and display number.
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62       XENVIRONMENT
63               to get the name of a resource file that  overrides  the  global
64               resources stored in the RESOURCE_MANAGER property.
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66       XSCREENSAVER_WINDOW
67               The window ID to use with --root.
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SEE ALSO

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

82       Eugene Balkovsky
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86X Version 11               6.08-1.fc39 (17-Oct-2023)            anemotaxis(6x)
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