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I would appreciate some help on this: https://gis.stackexchange.com/questions/467781/convert-networkx-graph-to-qgsvectorlayer-in-pyqgis

#qgis #qgisprocess #qgishydro #hydroinformatics

Convert networkx graph to qgsvectorlayer in pyqgis

I'm converting to a QGIS processing plugin a python script that loads two spatial layers (nodes and edges), converts them to a graph using networkx and after doing some transformation converts back...
Geographic Information Systems Stack Exchange
#qgis #qgishydro #qgisprocess #hydroinformatics
in reply to Josep Pueyo-Ros :rstats:

Raúl Nanclares 🍜
Raúl Nanclares 🍜
• •
This might help: https://stackoverflow.com/questions/62754277/networkx-writing-to-shape-file/68778945#68778945

Networkx Writing to Shape File

I am trying to write a shapefile using python 3.8 and Networkx v2.4. import networkx as nx import pandas as pd f= open('Onslowedge.edgelist','rb') G = nx.read_edgelist(f) latlong = pd.read_csv('
Stack Overflow
This entry was edited (1 year ago)
in reply to Raúl Nanclares 🍜

Josep Pueyo-Ros :rstats:
Josep Pueyo-Ros :rstats:
• •
Thanks! The script I'm "translating" outputs a geopackage with two layers (nodes and edges), so the problem is not converting to a file but to an object of class qgsvectorlayer that is usually returned by qgis plugins. I know I could return a pointer to a temporary file (like SAGA algorithms) but I would prefer just returning the QGIS layer directly.
This entry was edited (1 year ago)
in reply to Josep Pueyo-Ros :rstats:

Raúl Nanclares 🍜
Raúl Nanclares 🍜
• •
yep, I don't think there's any obvious way to transform and object from networkx to a qgis object.
This entry was edited (1 year ago)

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