[gdal-dev] RFC 48: Geographical networks support

[Dmitry Baryshnikov]

Hi Paul,

The RFS48 implemented, but only in trunk. The plan for release was on 
GDAL 2.1.

Yes, you can create shortest path between 2 points using a shapefile of 
roads, but the graph needed to be created. The autocreate method 
developed mostly for points (valves) and lines (tubes) so it may be 
unusable for you case in current implementation.
The details is here:
https://github.com/OSGeo/gdal/blob/trunk/gdal/gnm/gnm_tut.dox
https://github.com/OSGeo/gdal/blob/trunk/gdal/gnm/gnm_arch.dox
https://github.com/OSGeo/gdal/blob/trunk/gdal/apps/gnm_utilities.dox

Also, I would like to note, what GNMGenericNetowrk is not optimized now 
for big datasets (all graph stored in memory).

Best regards,
     Dmitry

23.11.2015 10:50, Paul Meems пишет:
> Hi List,
>
> I'm looking at this RFC. Is it already implemented in GDAL v2?
> And can we use it to create the shortest path between 2 points using a 
> shapefile of roads (linestring)
>
> Thanks,
>
> Paul
>
> *Paul Meems *
> Release manager, configuration manager
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> *
> *
>
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