[Qgis-user] Tagging Dead Ends

Ross McDonald ross at mixedbredie.net
Mon May 30 10:24:40 PDT 2016


Hi Adam
You could load the data into PostGIS and use pgRouting to build a network topology and then use the built-in pgRouting functions to analyse the graph for dead ends.  Then invert your selection.
See http://docs.pgrouting.org/2.0/en/src/common/doc/functions/analyze_graph.html for more info.
HTH
Ross

On 30 May 2016, at 18:21, Adam Sherman wrote:

> Hello,
> 
> I have a massive Shapefile with forestry roads and I would like to find all those that are not "dead ends", which would allow me to highlight the routes that actually go somewhere. Any ideas how this could be achieved?
> 
> Thank you,
> 
> A.
> 
> 
> -- 
> Adam Sherman
> Directeur des opérations, Sauvetage bénévole Outaouais
> Director of Operations, Ottawa Volunteer SAR
> CTO, Versature Corp.
> +1 613 797 6819
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