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RE: [Axiom-developer] Graphics and Axiom (was Re: touchgraph, hypertex,

From: Martin Rubey
Subject: RE: [Axiom-developer] Graphics and Axiom (was Re: touchgraph, hypertex, hypergraph)
Date: Fri, 21 Jan 2005 12:15:57 +0100

 > On Thursday, January 20, 2005 9:56 AM C Y wrote:

 > > One type of program I've wondered about is Pigale I'm
 > > not up on the theory of what it's trying to do, but it has always
 > > impressed me as an interesting program.  There was some talk a while back
 > > about adding some abilities into Maxima to work with it, but nothing came
 > > of it at that time.  I wonder if Axiom would be a good match for it.

I can (and in fact I did already) recommend pigale as a program to draw graphs
(in the graph theoretic sense). Once upon a time a wrote a (very buggy)
graph-package for maxima which used pigale to display them.

The key feature of pigale is that it has excellent algorithms to draw --
especially small, planar -- graphs, and the user can try out various algorithms

For large graphs I'd like to recommend tulip (from the same department, in

I know the developers, so if anybody is going to write a domain "graphs"
(belonging to the category "matroids"...) he should look at it.

I also would like to express my agreement with Bill: we should not try to
deliver an all in one package! There is a lot of very specialised software
around, we should interface with it, but not rewrite it! And I think that axiom
should run independently of it.


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