[Qgis-user] Is your directional linear network (road, rivers...) driving you crazy?

[Nicolas Cadieux]

Hi,

Is your directional linear network (road, rivers...) driving you crazy?

I have just uploaded  3 interdependent models will check for invalid 
geometries, identify common network errors (disconnected edges, 
multipart geometries, overlapping geometries, parallel edges, self 
connecting lines, network vectorizing direction changes...). It provides 
tools to track changes when fixes are applied to the network file.

Visit the project web site at 
https://gitlab.com/njacadieux/fix-directional-network-qgis-models and “A 
Python Algorithm for Shortest-Path River Network Distance Calculations 
Considering River Flow Direction” for more details 
https://doi.org/10.3390/data5010008 <https://doi.org/10.3390/data5010008>.

Built and tested on QGIS 3.20.

-Fix Directional Network, Check Geometries, model 1 of 3.

-Fix Directional Network, Check Network, model 2 of 3.

-Fix Directional Network, Fix Network, model 3 of 3.

Models have been uploaded to https://plugins.qgis.org/models/ and are 
waiting for final approval.

Thank you to René Paillard, Harrissou Delaz, Luiz Motta,  Charles 
Dixon-Paver,  Andrea Giudiceandrea, David Strip and others for reaching 
out on the QGIS mailling list and for providing test data. A special 
thanks to Margaret Kalacska, Oliver T. Coomes, Sébastien Breau, Yoshito 
Takasaki and Mari Tanaka for providing a challenge.

-- 
Nicolas Cadieux
https://gitlab.com/njacadieux

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