.pal
extension.
Ptolemy is a software environment that provides simulation an code
generation capabilities.
http://ptolemy.eecs.berkeley.edu
describes the Ptolemy project in detail. Ptolemy uses
Octtools to represent data internally. A Ptolemy
Palette is a Octtools facet that contains other sub-facets.
EditPalette class is derived from the
EditForest class, and therefore
inherits all of its features.
The Palette editor uses the Octtools octls
program
to list the sub-facets in a palette. octls
is part of the
Ptolemy software environment.