[GraphHopper] Disconnected areas

[Peter K]

Hi Ludwig,

it looks like GraphHopper Maps has a similar problem (I tried your
coordinates
<http://graphhopper.com/maps/?point=37.169792%2C25.449737&point=37.101957%2C25.375918>).
Currently the routing goes only from junction to junction and so the
second point resolves to the same junction. Will be fixed (in the very
near future) via #27

Not sure why there is a difference for the "two" areas. It would be
interesting for me to know where the second point resolves to for your
unexpanded area and how the route looks like (screenshot?).

Regards,
Peter.


> Following problem: I create a graphhopper app for one of the Greek
> Islands and it works. Now I expand the area to include other islands
> and the same app (no code changes) does not find the route (start and
> end point are the same as previously).
>
> To me this suggests that once I include a wider area that is not
> connected to a subarea, it somehow confuses the routing. The exception
> is an IllegalArgumentException that says it cannot find point1 and
> cannot find point2 (then it also says the two are the same, I guess
> they are internally nulled after being unable to find them.).
>
> The bounds for my OSM extraction are as follows:
>
> #Naxos only: works
> export LEFT=25.3
> export RIGHT=25.7
> export TOP=37.3
> export BOTTOM=36.9
>
> #Wider Aegais: does not work
> export LEFT=24
> export RIGHT=28.5
> export TOP=38
> export BOTTOM=35.2
>
> # Slightly more verbose error message from the error stack:
> Error:[java.lang.IllegalArgumentException: Cannot find point 1:
> 37.16979166666667, 25.449736666666663,
> java.lang.IllegalArgumentException: Cannot find point 2: 37.101957,
> 25.375918, java.lang.IllegalArgumentException: Point 1 is equal to
> point 2]
>
> Any ideas why this is so?
>
> Ludwig
>
>
>
> _______________________________________________
> GraphHopper mailing list
> GraphHopper at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/graphhopper

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/graphhopper/attachments/20130914/4904ed79/attachment.html>