Tk/Taxis version 2.02 ===================== This module is a composite widget: a framed canvas with critter images that perform bacterial taxis within a choice chamber. Taxis is a form of movement found in simple organisms such as bacteria. Bacteria cannot sense differential gradients of e.g. light or food along the length of their cells, so they cannot simply swim toward the light or food, as they are unable to tell which direction this would require. Instead they measure e.g. the concentration of food where they are, swim a little, then measure the concentration again. If they find the concentration has increased, they reduce their tumbling frequency, i.e the probability they will make a random change in direction. This allows them to follow a biased random walk toward the source of food/light/etc. The module requires Tk and its dependencies installed. In addition to the module itself, a script called 'woodlice.pl' will be installed in perl's executable directory that demonstrates the use of the module. If you do not want this, edit Makefile.PL to remove the EXE_FILES line. INSTALLATION To install this module type the following: perl Makefile.PL make make test make install DEPENDENCIES This module requires these other modules and libraries: Tk COPYRIGHT AND LICENCE Copyright (C) 2003 Steve Cook This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.