[GraphHopper] Postgres/PostGis Integration

[Markware Software Services]

Hi Peter, Ok, thanks. for the feedback. We will look into this further.
Cheers Mark


Regards

Mark Cupitt

*See me on StackExchange <http://gis.stackexchange.com/users/17846/mark-c>*

===============================================================================================
The contents of this email are intended only for the individual(s) to whom
it is addressed and may contain
confidential or privileged information. If you are not the intended
recipient, you must not disclose, copy, distribute,
or use the contents of this email. If you have received this email in
error, please notify the sender immediately and
delete the email and any attachments.
===============================================================================================



On Sun, Aug 25, 2013 at 8:38 PM, Peter K <peathal at yahoo.de> wrote:

> Hi Mark,
>
> > Hi All
> >
> > Graphhopper is quite impressive. We have been considering PgRouting
> > for our database (we have our own map and also OSM) and not being java
> > folks, would like to ask the obvious question before spending a lot of
> > time:
> >
> > Q: Can graphhopper route against a Postgres/PostGis database easily or
> > does it need to be modified extensively
>
> I don't think that this is a good idea. I'm not sure how pgrouting it
> does but probably they don't access the data via the normal SQL queries
> and use a direct database access somehow. Otherwise if you need to hit
> some indices to get neighbor nodes for every node while traversing this
> would be horribly slow.
>
> But yes, graphhopper can be modified to use different datasource. I've
> done similar things like this one year before for a graph database
> called neo4j but it isn't that easy and everything else will be slower
> then the in-memory access. Also it isn't that easy i.e. you need to
> understand graphhopper internals and Java a bit.
>
> Regards,
> Peter.
>
> _______________________________________________
> GraphHopper mailing list
> GraphHopper at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/graphhopper
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/graphhopper/attachments/20130826/4f766e42/attachment.html>