Re: [xsl] xml to svg graphs

["Michael Kay michaelkay90@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

We used the DotML interface to GraphViz to produce the diagrams in early
versions of the XSLT 3.0 spec, see for example

https://www.w3.org/TR/2010/WD-xslt-21-20100511/#tracing-variable-references

Done with a simple transformation from a logical XML representation of the
graph to DotML which then generates the SVG.

Michael Kay
Saxonica

> On 28 Jan 2026, at 14:30, BR Chrisman brchrisman@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> I remember doing an xslt conversion of an xml dump (xml output of an
abstract syntax tree from a compiler) to 'dot' for graphviz, which output
svg... .that's not straight-to-cvg though.
> Not sure that helps, but I had very good results from graphviz with that.
>
> On Wed, Jan 28, 2026 at 6:13b/AM Dave Pawson dave.pawson@xxxxxxxxx
<mailto:dave.pawson@xxxxxxxxx> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx
<mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote:
>> Sorry, my data is far from a directed graph.
>>   This is one I did get to work, a simple block graph.
>>
>> regards
>>
>> On Wed, 28 Jan 2026 at 14:09, Martynas JuseviD
ius martynas@xxxxxxxxxxxxx
<mailto:martynas@xxxxxxxxxxxxx> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx
<mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote:
>>> Well, the advantage of RDF is that it's a standard :)
>>> https://www.w3.org/TR/rdf11-primer/
>>>
>>> The downside is that its XML-based format (RDF/XML) is rather convoluted.
>>>
>>> But you don't need to write RDF/XML by hand - you can use Jena's CLI to
transform from a more human-readable Turtle format to RDF/XML.
>>>
>>> Or heck, I think you could give your names/values data to an LLM and ask
it to produce an RDF equivalent :)
>>>
>>> On Wed, Jan 28, 2026 at 3:05b/PM Dave Pawson dave.pawson@xxxxxxxxx
<mailto:dave.pawson@xxxxxxxxx> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx
<mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote:
>>>> Hi Martynas.
>>>>   The simplicity (and coverage) of Jakobs was ( for me) its advantage?
>>>>   Two simple lists
>>>> <names/>
>>>> <values/>
>>>>   with a whole host of variants.
>>>>   Not the same 'graphs' as RDF?
>>>>
>>>> regards
>>>>
>>>> On Wed, 28 Jan 2026 at 13:56, Martynas JuseviD
ius martynas@xxxxxxxxxxxxx
<mailto:martynas@xxxxxxxxxxxxx> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx
<mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote:
>>>>> Hey Dave,
>>>>>
>>>>> Not a direct replacement, but FWIW I have a stylesheet that transforms
RDF graphs (via the RDF/XML format) to force-directed SVG layouts:
>>>>>
https://github.com/AtomGraph/Web-Client/blob/master/src/main/webapp/static/co
m/atomgraph/client/xsl/converters/RDFXML2SVG.xsl
>>>>>
>>>>> The RDF/XML structure might be specific to "normalised" Jena's RDF/XML
output (can't exactly recall now).
>>>>> https://jena.apache.org/documentation/tools/#riot-and-related
>>>>>
>>>>> Martynas
>>>>> atomgraph.com <http://atomgraph.com/>
>>>>> On Wed, Jan 28, 2026 at 2:48b/PM Dave Pawson dave.pawson@xxxxxxxxx
<mailto:dave.pawson@xxxxxxxxx> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx
<mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote:
>>>>>> A long time ago...
>>>>>>   Jakob wrote some code, now resident (rotting?)
>>>>>> on Google code.
>>>>>> https://code.google.com/archive/p/graph2svg/downloads
>>>>>>
>>>>>> At the time he use fxsl and exsl for the math(s).
>>>>>>
>>>>>> IMHO this is well worth bringing up to date.
>>>>>> I asked Jakob and received no reply.
>>>>>>
>>>>>> Saxon math 'extension' only lacks abs,  from
>>>>>> my early trials?
>>>>>>
>>>>>> If anyone with a mathematical bent has time
>>>>>> to do the xslt world a favour, I would certainly
>>>>>> appreciate it.
>>>>>>
>>>>>> regards
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Dave Pawson
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>>>>
>>>> --
>>>> Dave Pawson
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>>
>>
>> --
>> Dave Pawson
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