[GraphHopper] Any ideas to convert shape file to routable osm data?

[Peter]

Hi Bulut,

as you can see from some of the test OSM files, the tagging is only
required for the ways and only if you require this in the encoder:

https://github.com/graphhopper/graphhopper/tree/master/core/src/test/resources/com/graphhopper/reader

https://github.com/graphhopper/graphhopper/blob/master/core/src/test/java/com/graphhopper/reader/OSMReaderTest.java

> But now, routing is not working even on a single way element.

What does 'not working' mean? Is your code working with a standard OSM
file or with one of these test files?

Kind Regards,
Peter

On 02.05.2015 16:09, Sander van Tulden wrote:
> Hi Bulut,
>
> I don't think the relation elements are needed for routing via a
> shapefile network. They aren't present in mine, but you can add some
> if you want customization in your flagencoder. 
>
> I think tagging the nodes is also needed indeed, maybe for the index
> lookup when you set start and end points? 
>
> Greetz,
>
> Sander van Tulden
>
> _____________________________
> From: Bulut Aras <bulutaras at gmail.com <mailto:bulutaras at gmail.com>>
> Sent: zaterdag, mei 2, 2015 10:39
> Subject: Re: [GraphHopper] Any ideas to convert shape file to routable
> osm data?
> To: GraphHopper Java routing engine <graphhopper at openstreetmap.org
> <mailto:graphhopper at openstreetmap.org>>
>
>
> Hi Sander,
> After adding tag element with "highway" key, I successfully generated
> graph, with no exception. But now, routing is not working even on a
> single way element. I will try to add "tag" to node element also.
>
> Beside these, is "relation" element needed for graphhopper to work
> properly?
>
> Thanks,
> Bulut Aras
>
> On Fri, May 1, 2015 at 9:18 AM, Sander van Tulden
> <sander.vantulden at falk.nl <mailto:sander.vantulden at falk.nl>> wrote:
> > Hi,
> >
> > The negative ids are normal for JOSM generation, and wouldn't affect the
> > OSM parsing by Graphhopper. Did you mark your nodes and ways with a
> custom
> > tag to be parsed by Graphhopper? I had that error too, before I added my
> > custom tag to a Graphhopper flagencoder and to my nodes/ways in JOSM.
> >
> > Does your .osm xml consist of the following structure?
> >
> > <osm version='0.6'>
> > <node id='-1241' lat='51.521' lon='5.64214'>
> > <tag k='highway' v='customtag' />
> > </node>
> > <way id='-5152'>
> > <nd ref='-1241' />
> > <nd ref='-5225' />
> > <tag k='highway' v='customtag' />
> > </way>
> > </osm>
> >
> > Greets,
> >
> >
> > Sander van Tulden
> >
> >
> >
> >
> >
> > Op 25-04-15 23:01 schreef Bulut Aras <bulutaras at gmail.com
> <mailto:bulutaras at gmail.com>>:
> >
> >>Hi Sander,
> >>I tried to do what you described, but when I call importOrLoad
> >>function it fails:
> >>"java.lang.IllegalStateException: osm must not be empty. read
> 1684108 <tel:1684108>
> >>lines and 0 locations".
> >>
> >>Interesting thing is when I inspect the osm file generated by JOSM, I
> >>see negative nodeId values like;
> >> <nd ref='-305' />
> >> <nd ref='-306' />
> >> <nd ref='-307' />
> >> <nd ref='-308' />
> >> <nd ref='-309' />
> >>
> >>Actually, I'm not sure if this is the problem.
> >>
> >>Thanks.
> >>
> >>On Tue, Apr 21, 2015 at 9:57 AM, Peter <graphhopper at gmx.de
> <mailto:graphhopper at gmx.de>> wrote:
> >>> Hi there,
> >>>
> >>> we are interested in this as well for a custom shapefile import. If
> >>> someone is willing to put this under an open source we would love to
> >>> support this and integrate it etc :) !
> >>>
> >>> Kind Regards,
> >>> Peter
> >>>
> >>> On 21.04.2015 08:26, Sander van Tulden wrote:
> >>>> Hi,
> >>>>
> >>>> We have a similar use case, where we use our shapefile network within
> >>>> Graphhopper. The way we solve this is by first converting the
> shapefile
> >>>> network with JOSM and plugin "OpenData" to .osm (xml). We then use
> >>>> Graphhopper with minimum settings (using chWeighting = no and
> >>>> prepare.minNetworkSize=1) to parse the shapefile by using a custom
> >>>> Graphhopper encoder class that uses the tags that the shapefile
> >>>>segments
> >>>> contain. In our case we had no initial tags, so in JOSM we just
> >>>>selected
> >>>> the whole network and gave it a custom tag to be used in the
> >>>>Graphhopper
> >>>> encoder class. If you don't yet know how to make a custom
> encoder, you
> >>>> could use the Bike/Foot one and just add your custom tag for testing
> >>>> purposes.
> >>>>
> >>>> In our case this works pretty well. We don't have very frequent
> >>>>changes to
> >>>> the network, so we just prepare the set again when we need to change
> >>>>it.
> >>>>
> >>>> Good luck,
> >>>>
> >>>>
> >>>> Sander van Tulden
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> Op 20-04-15 19:28 schreef Bulut Aras <bulutaras at gmail.com
> <mailto:bulutaras at gmail.com>>:
> >>>>
> >>>>> Hi,
> >>>>> We have our own road data. We use Esri products and want to abandon
> >>>>> network analyst tool. How can we export our data (from un-routable
> >>>>> shapefile for example) to use with graphhopper, manually or
> >>>>> programmatically? Out data changes frequently.
> >>>>>
> >>>>> May networkx library work for us?
> >>>>>
> >>>>>
> >>>>> Thanks in advance.
> >>>>>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/graphhopper/attachments/20150502/24350fcc/attachment.html>