[pgrouting-users] Adding bike routes to database

Yasir Shoaib yasirshoa at gmail.com
Thu Aug 12 13:31:33 EDT 2010


Hi Daniel,

No, this is custom generated data.

Yasir

On 12 August 2010 05:18, Daniel Kastl <daniel.kastl at georepublic.de> wrote:

> Hi Yasir,
>
> Just a question for better understanding:
> Are you bike routes user generated (GPS) tracks or are they separate
> network data that is just not part of OSM?
> If you want to match GPS tracks to an existing road network, there is a
> matching.sql with some functions in at least the trunk version of pgRouting.
>
> Daniel
>
>
>
>
> --
> Georepublic UG & Georepublic Japan
> eMail: daniel.kastl at georepublic.de
> Web: http://georepublic.de
>
>
>
> 2010/8/12 Yasir Shoaib <yasirshoa at gmail.com>
>
> Hi Daniel,
>>
>> Thanks for replying.
>>
>> There is the issue of my current bike routes data not being aligned to the
>> exiting streets (some differences are present). Also, I am not sure how ways
>> can be assigned multiple class id's. The Ontario.osm which was downloaded
>> didn't have bike data imported into the pgrouting db, unless I missed
>> something. Ontario.osm was downloaded from:
>> http://downloads.mapzen.mapzen.cloudmade.com/north_america/canada/ontario
>>
>> To get things started, I tried adding the routes and then running the
>> search with lower cost assigned to bike routes and higher to other road
>> networks but this didn't work as intended. Maybe this is the problem that
>> you mention about nodes snapping relating to the high tolerance.
>>
>> Although, I am continuing to look into this, based on above do you have
>> any suggestions on getting things working?
>>
>> Thanks,
>> Yasir
>>
>>
>>
>> On 11 August 2010 15:34, Daniel Kastl <daniel.kastl at georepublic.de>wrote:
>>
>>> Hi Yasir,
>>>
>>>
>>>  I have some bike routes data that I would like to insert to the 'ways'
>>>> table in my pgrouting database.
>>>> For routing using the added routes, do I need to run assign_vertex_id
>>>> again?
>>>>
>>>
>>> If you can ensure that you keep a valid topology you don't have to run it
>>> again. But probably it's easier to do so.
>>>
>>>
>>>
>>>>
>>>> Also, there are existing streets where the bike routes would be added,
>>>> would this be any problem?
>>>>
>>>
>>> You might have a problem if nodes get very close to existing ones. they
>>> might "snap" if you set your "tolerance" value too high.
>>> Also I'm not sure you want to create new roads beside existing ones.
>>> Probably you would like to try to match your bike routes with existing
>>> roads.
>>>
>>> Best regards,
>>> Daniel
>>>
>>>
>>>
>>>
>>> --
>>> Georepublic UG & Georepublic Japan
>>> eMail: daniel.kastl at georepublic.de
>>> Web: http://georepublic.de
>>>
>>>
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>>> http://lists.osgeo.org/mailman/listinfo/pgrouting-users
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>>>
>>
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