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yap-6.3/Logtalk/examples/polygons/NOTES
pmoura 06ea1bd8ec Logtalk 2.10.0 file.
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2002-04-03 13:26:59 +00:00

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=================================================================
Logtalk - Object oriented extension to Prolog
Release 2.10.0
Copyright (c) 1998-2002 Paulo Moura. All Rights Reserved.
=================================================================
To load all objects in this example consult the polygons.loader utility
file (note that the *.loader files are Prolog files).
You will need to load the objects in the roots and relations
examples (consulting the corresponding roots.loader and relations.loader
files).
You will also need to consult the following files in the library directory:
events.loader, types.loader, metapredicates.loader, and hierarchies.loader.
Alternatively, you may load the library/all.loader file to load all library
entities.
In this example we have several types of polygons that can be concentric.
This is represented by a concentric binary relation ensuring that whenever
a polygon is moved towards a new position, all polygons likewise concentric
are moved along with them.