Hi Samir,
You might want to take a look at the Graphs package I just registered in 
SqueakMap. It's a port of Mario Wolczko's graphs.st goodie (*) with some 
additional funcionality. Look at the class side of Graph and RootedGraph 
for some examples.
There's also a Graph-Morphs package that does graph layout with two 
different methods: springs layout (like the original MathMorphs graphs 
implemented by Gerardo Richarte) and radial layout. You can see how it 
looks trying 'SpringsGraphMorph new graph: RootedGraph 
exampleMediumTree; openInWorld', or the same with RadialGraphMorph.

Luciano.-
(*) 
http://wuarchive.wustl.edu/languages/smalltalk/Smalltalk/MANCHESTER/manchester/4.0/graphs.st.


Samir Saidani wrote:

>Hi
>
>I'm planning building a Collection-Graph, for my
>research (phD). I would like to know if there is such a functional
>Graph classes ? 
>
>I know several implementations :
>
>- MathMorph (The GraphWrapper implementation seems not to work in 3.2, and http://mathmorphs.swiki.net/44 -
>GraphAlgorihtms.zip is unavailable :-()
>
>- Connector-Morph (It's not truly an implementation of
>Collection-Graph, but it can be use to display a Graph,
>with MorphicWrapper).
>
>- T-Gen implements a Collection-Graph too, but the implementation is
>oriented parsing...
>
>- Arrow implements a Graph, with a new and original manner,  I
>have to see if it's possible to encapsulate the common abstraction of graphs
>(I mean nodes, edges...).
>
>Do you know others implementations ?
>
>Thanks at all !
>
>  
>


-- 
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