<div dir="auto">Thank you guys for the support.</div><div dir="auto">Could I work with Graphviz in the python console inside Qgis? And does Graphviz support shapefiles or similar as an input? </div><div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Il giorno mar 9 feb 2021 alle 20:07 Jorge Gustavo Rocha <<a href="mailto:jgr@geomaster.pt">jgr@geomaster.pt</a>> ha scritto:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<p>Hi,</p>
<p>I second Chris's proposal. Using graphviz python module [1], you
can generate your graph by iterating over the features.<br>
</p>
<p>At the end, just call the render and you will get the rendered
graph (just add view=True) within your QGIS environment. You need
to know some Python basic stuff, but not much than the basic.<br>
</p>
<p>Regards,</p>
<p>Jorge Gustavo<br>
</p>
<p>[1] <a href="https://graphviz.readthedocs.io/en/stable/manual.html" target="_blank">https://graphviz.readthedocs.io/en/stable/manual.html</a><br>
</p>
<div>Às 18:55 de 09/02/21, chris hermansen
escreveu:<br>
</div>
<blockquote type="cite"></blockquote></div><div><blockquote type="cite">
<div dir="ltr">
<div dir="ltr">Giacomo and list,<br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Feb 9, 2021 at 8:07
AM Giacomo Uguccioni <<a href="mailto:giacomo.uguccioni@gmail.com" target="_blank">giacomo.uguccioni@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Hello everyone, and thanks for the support.
<div>If this is not the place to ask for this kind of
thing, I ask you to give me a link where I could
find support.</div>
<div>I'm a qgis 3.14 user. I would like to represent a
tree diagram or functional diagram being able to draw
the symbology and position of nodes and connections from
the information contained in the attribute table.
Example: I would like to represent the medium voltage
grid of a city as an electrical diagram; I would like to
represent with lines that join at nodes the roads that
connect certain houses and schools in a city. So my goal
is to be able to build a layout with symbology of nodes
and connections derived from information contained in
different shapefiles or within features, with a
non-geographic but schematic / ideal criterion.</div>
<div>Do you have any ideas or suggestions on how to do it?
I thank you for every contribution.</div>
</div>
<br>
</blockquote>
<div><br>
</div>
<div>Not a QGIS-based solution, but I've used <a href="https://graphviz.org/" target="_blank">graphviz</a>
to generate graphs from the command line with considerable
success. It offers a small but useful programming language
that can be combined with data in text files in a really
useful way.<br clear="all">
</div>
</div>
<div><br>
-- <br>
<div dir="ltr">
<div dir="ltr">Chris Hermansen · clhermansen "at" gmail
"dot" com<br>
<br>
C'est ma façon de parler.</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
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</blockquote></div></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div style="text-align:right"><b style="font-family:"arial narrow",sans-serif">Giacomo Uguccioni</b></div><div style="text-align:right"><b style="font-family:"arial narrow",sans-serif">Geospatial Data Acquisition & Processing</b></div><div style="text-align:right"><span style="font-family:"arial narrow",sans-serif">+39 3920431219</span><br></div><div style="text-align:left"><div style="color:rgb(34,34,34);font-size:13.33px;font-family:arial"><font face="arial"><font size="1">Le informazioni contenute nella presente comunicazione sono</font></font><font size="1"> riservate esclusivamente ai destinatari indicati in epigrafe. La diffusione del documento trasmesso da parte di qualsiasi soggetto diverso dal mittente e dal destinatario è proibita, sia ai sensi dell’art. 616 c.p., sia ai sensi del D.Lgs. n. 196/2003 e regolamento UE n. 2016/679.</font></div><div style="color:rgb(34,34,34);font-size:13.33px;font-family:arial"><font size="1">Se avete ricevuto questo messaggio per errore, vi preghiamo di distruggerlo e di darcene immediata comunicazione anche inviando un messaggio di ritorno all’indirizzo e-mail del mittente. </font></div></div></div></div>