Thank you guys for the support. Could I work with Graphviz in the python console inside Qgis? And does Graphviz support shapefiles or similar as an input?
Il giorno mar 9 feb 2021 alle 20:07 Jorge Gustavo Rocha <j...@geomaster.pt> ha scritto: > Hi, > > I second Chris's proposal. Using graphviz python module [1], you can > generate your graph by iterating over the features. > > 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. > > Regards, > > Jorge Gustavo > > [1] https://graphviz.readthedocs.io/en/stable/manual.html > Às 18:55 de 09/02/21, chris hermansen escreveu: > > Giacomo and list, > > On Tue, Feb 9, 2021 at 8:07 AM Giacomo Uguccioni < > giacomo.ugucci...@gmail.com> wrote: > >> Hello everyone, and thanks for the support. >> 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. >> 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. >> Do you have any ideas or suggestions on how to do it? I thank you for >> every contribution. >> >> > Not a QGIS-based solution, but I've used graphviz <https://graphviz.org/> > 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. > > -- > Chris Hermansen · clhermansen "at" gmail "dot" com > > C'est ma façon de parler. > > _______________________________________________ > Qgis-user mailing listqgis-u...@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > -- > [image: Logo] <https://www.geomaster.pt> > *Geomaster* > *Jorge Gustavo Rocha* | Software Engineer > *e:* j...@geomaster.pt | *m:* +351 910 333 888 > *g:* 41.54094,-8.40490 | *v: * 510 906 109 > *a: * Rua António Cândido Pinto, 67, 4715-400 Braga > <https://www.google.com/maps/search/Rua%0D%0A++++++++++++++++++++++++++Ant%C3%B3nio+C%C3%A2ndido+Pinto,+67,+4715-400+Braga?entry=gmail&source=g> > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > -- *Giacomo Uguccioni* *Geospatial Data Acquisition & Processing* +39 3920431219 Le informazioni contenute nella presente comunicazione sono 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. 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.
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