Re: [OSGeo-Discuss] Qgis network plugins

[karsten]

Hi Nathan,
 
while I myself don't have much experience with network analysis there should
be something available for QGIS.
 
However, for other reasons I have used the awesome ORS plug-in
https://github.com/GIScience/orstools-qgis-plugin 
that is build on top of https://openrouteservice.org/services/ . It allows
to calculate all kind of isochrones an travel time matrixes and the online
API also allows for 
adding your own route and travel time restrictions ...
 
Cheers
Karsten

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From: Discuss [mailto:discuss-boun...@lists.osgeo.org] On Behalf Of Nathan D
Sent: Thursday, September 24, 2020 11:00
To: discuss@lists.osgeo.org
Subject: [OSGeo-Discuss] Qgis network plugins


Hello! 

I have a question regarding network plugins for qgis. I am trying to solve a
problem regarding gravel trucks and slope, with the idea of saving money on
fuel, as a fully loaded gravel truck uses more gas to go up a slope, rather
than down. I have managed to get the slope data I needed, and draped it over
the road lines, giving me a start and end slope, with a third column for the
average of the start and end slope degrees. The problem is this: I can't
find a network analysis plugin for qgis of any kind that allows for user
defined impedences, allowing me to create a road hierarchy. I know that
ArcGIS has that functionality, but I was hoping that QGIS would have
something like that, and I am not sure if I can build it. 

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[OSGeo-Discuss] Qgis network plugins

[Nathan D]

Hello!

I have a question regarding network plugins for qgis. I am trying to solve a 
problem regarding gravel trucks and slope, with the idea of saving money on 
fuel, as a fully loaded gravel truck uses more gas to go up a slope, rather 
than down. I have managed to get the slope data I needed, and draped it over 
the road lines, giving me a start and end slope, with a third column for the 
average of the start and end slope degrees. The problem is this: I can't find a 
network analysis plugin for qgis of any kind that allows for user defined 
impedences, allowing me to create a road hierarchy. I know that ArcGIS has that 
functionality, but I was hoping that QGIS would have something like that, and I 
am not sure if I can build it.

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Re: [OSGeo-Discuss] Concurrency problems, please help

[Pierre Abbat]

I got it working. I made each thread insert points only into blocks whose 
number matches the thread's number mod the number of threads. Locking the 
cubes was not enough.

Pierre

-- 
Don't buy a French car in Holland. It may be a citroen.



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