[Qgis-user] qgis problems?

[Nicolas Cadieux]

Hi,

Yes.  You will need the QGIS network tools in processing or install a network plugin. Look in the plugins under network.  You are will want to make a shortest Path Djikstra using “one to all” on a weighted directed graph. Google “Nicolas Cadieux and “ A Python Algorithm for Shortest-Path River Network Distance Calculations Considering River Flow Direction” in Data.  That article will give you some hints on how to prepare the network.

Nicolas Cadieux
Ça va bien aller!

>> Le 28 juill. 2020 à 05:45, Aki Meinander <Aki.Meinander at metropolia.fi> a écrit :
> 
> Hey.
> 
> I have a few problems.
> 
> 1. If I put GPS points (WGS or KKJ) on the map (OpenStreetMap), they will throw 3000 km.
> 
> 2. How can the driving time be calculated from point a to points 1-2000? is it possible? In other words, to multiple destinations from the same starting point. Or alternatively the length of the trip.
> 
> 
> Thanks if anyone can help me.
> -aki
> 
> 
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