Re: [graphviz-interest] SVG: Export edges as connectors

Matt,

I don't have a problem with what you are trying to do,  but my problem 
is that
graphviz has a philosophy of trying to render graphs identically in all 
formats,  and SVG's set of arrows
are not aiigned with graphviz's.

We had a similar issue with colors, which was eventually resolved by 
introducing sets of color names,  so that "SVG color names could be used 
instead of "X11" names.

So probably the right thing to do here is to introduce some alternate 
"arrowhead" set support,  so that you you could specify
"svg" arrows (and explicitly give up the assurance that it will look the 
same in other formats).

My other problem is that I really don't have the time to work on 
this...   Perhaps this could be a useful project if someone wanted to 
contribute some code?

John

On 11/02/2015 09:35 AM, Matt wrote:
> Hi,
>
> [Please keep me in CC]
> [Question at the end and in the title, introduction to the problem first]
>
> I have a 20 nodes state machine (fsm) generated with graphviz because
> it was ideal to iterate over the fsm. I now want to generate a proper
> image of this with a well thought layout. My idea was to export to svg
> and then move the nodes as I want them to be.
> The problem is that when I move the nodes, the edges don't follow the nodes.
>
> I found out that to have edges follow the nodes, I had to use
> *connectors* instead of *path* elements and I also a found a script
> that just does that :
> http://john-raffensperger.blogspot.fr/2015/05/drag-your-graphviz-nodes-with-inkscape.html
> Kudos to the author !
> (the script creates straight connectors while it seems possible to
> have *splined* connectors as shown in:
> http://tavmjong.free.fr/SVG/CONNECTORS/index.xhtml but that's not that
> much of a problem for me).
>
> The annoying problem is that the script loses the arrows that showed
> the transition direction.  I wondered if:
> 1/ SVG supports directional connectors
> 2/ if 1/, would it be possible to do it in graphviz ?
>
> Best regards
> Matt
>
> PS: I hope this is the good mailing list: I could not find the address
> of the mailing list on page http://www.graphviz.org/MailingList.php
> which is weird, otherwise sorry and please tell me the correct mailing
> list.
> _______________________________________________
> [email protected]
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