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   Graphotron - XPath based generation of graphs from XML documents

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let me introduce my favorite toy:

Graphotron -  a simple XML language for drawing graphs with XPath.



is the reference implementation of Graphotron. It can be
used and freely modified without any restriction.
It is written in XSLT and requires a processor which lifts restrictions on
 result tree fragments, as Saxon 6.x

At this moment the Zvon Graphotron supports following outputs:

dot (Graphviz package) - binaries available for Unixes and Windows, an
source project

daVinci - binaries available for Unix platforms

VCG - binaries available for Windows, source code available under GNU
licence for Unix platforms

Prolog - a simple format suitable for feeding Prolog programs

If somebody knows about some freely available program working with graph
theory, please let me know. It would be nice to have validations e.g. like :
this elements must form a complete or a planar graph.

You can read more about Graphotron at:

There is also a reference:

and a tutorial:

<firstName> Miloslav </firstName>
<surname>   Nic      </surname>

<mail>    nicmila@systinet.com    </mail>
<support> http://www.zvon.org  </support>


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