[GraphHopper] Turn Restrictions

[Nick Bauer]

Here is an example relation:
[image: Inline image 1]

My routing can turn in either direction, no restriction is upheld.

On Fri, Jun 12, 2015 at 9:06 AM, dos65 <qtankle at gmail.com> wrote:

>  Sorry, my mistake. Certainly members should contains via, from and to.
>
> While processing restrictions, gh look to restriction tag's value
> prefix(no or only) and restrict or allow by from, via, to. There is no
> difference between only_right_turn and only_left_turn if members are equals.
>
>
>
> On 12.06.2015 16:52, Nick Bauer wrote:
>
> I've read that the relation must have:
> from, to, via.
>
>  Are you saying that it will work if the relation is only containing
> from, to?  Is the ordering important?
>
>  Are there certain types of restrictions that work over others?  such as
> no_left_turn vs only_right_turn?
>
>
> On Fri, Jun 12, 2015 at 8:41 AM, dos65 <qtankle at gmail.com> wrote:
>
>>  Hi Nick.
>> Restrictions must have members(from, to). In your case restriction don't
>> have them and it does not processed by gh.
>>
>>
>>
>> On 12.06.2015 16:29, Nick Bauer wrote:
>>
>> Hi Peter-
>>
>>  Sorry for the delay.  Please see:
>>
>> https://graphhopper.com/maps/?point=41.616854%2C-88.122497&point=41.616365%2C-88.123473&locale=en-US&layer=Lyrk
>>
>>  OSM data has a turn restriction setup where you can only turn right,
>> however GH shows a left turn.
>> OSM data uses a single node with restriction:no_left_turn
>>
>>  Is this a sufficient relation?  What is required for GH to consider
>> turn restrictions?
>>
>> On Thu, Jun 4, 2015 at 5:14 AM, Peter <graphhopper at gmx.de> wrote:
>>
>>>  Hi,
>>>
>>> > however I am not getting the results I expect.
>>>
>>>  what result do you expect? Please be more specific e.g. also include
>>> some coordinates or screenshots and then describe the problem you have :)
>>>
>>> Regards,
>>> Peter
>>>
>>>
>>>
>>> On 04.06.2015 02:02, Nick Bauer wrote:
>>>
>>>  Hello-
>>>
>>>  After reviewing the 0.4 list of changes, it seems to me that turn
>>> restrictions are enabled.  I have what i believe is the correct OSM as well
>>> as config.properties file, however I am not getting the results I expect.
>>>
>>>  I am mobile right now, so I can't post any detailed output, but here
>>> is the config:
>>>
>>>  prepare.chWeighting=no
>>> prepare.chShortcuts=no
>>> osmreader.acceptWay=car
>>> graph.flagEncoders=car
>>>
>>>  # Enable turn restrictions for car or motorcycle.
>>> # Currently you need to additionally set prepare.chWeighting=no before
>>> using this (see below and #270)
>>> graph.flagEncoders=car|turnCosts=true
>>>  graph.dataaccess=RAM_STORE
>>>
>>>  How does this config look?
>>> My OSM has to from and via relation elements.  Any other tips on how to
>>> correctly create the OSM?
>>>
>>>  Thanks,
>>> Nick
>>>
>>>
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>>
>>
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>>
>>   --
>> Челышов Вадимqtankle at gmail.com
>>
>>
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>
>
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> Челышов Вадимqtankle at gmail.com
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