[OSRM-talk] Use OSRM on rivers, railways, power lines

[François Lacombe]

Hi Daniel,

Ok,

Or I can take the centroid of each substation area and connect each line to
it.
Then, drop the area and only keep substations nodes which get the
is_startpoint in the profile.

On render side, I will surely be able to match substation nodes given by
osrm and actual areas with ref tags.

I'll be testing it for some times and will share it if interested
Thank you for your time


All the best

2017-08-25 0:04 GMT+02:00 Daniel Patterson <daniel at mapbox.com>:

> Yes, connectivity will be a problem in that example.  If you make the
> lines `is_startpoint=false` and they're not connected to something else,
> then you won't be able to route over them.
>
> You will need to do some pre-processing here - create artificial nodes at
> the points where the substation boundaries cross the lines and connect both
> ways to those artificial nodes.
>
> daniel
>
> On Thu, Aug 24, 2017 at 2:33 PM, François Lacombe <
> fl.infosreseaux at gmail.com> wrote:
>
>>
>> 2017-08-24 23:18 GMT+02:00 Daniel Patterson <daniel at mapbox.com>:
>>
>>> Franccois,
>>>
>>>   In the lua profiles, you can set the `result.is_startpoint` property
>>> in `process_way` (used to be `way_function`) to determine whether you can
>>> snap to them.  We currently use this for ferry routes - paths can use them,
>>> but can't start/end on them.
>>>
>>>   Set `is_startpoint` to true for your substations way areas, and
>>> `is_startpoint` to false for the transmission lines.
>>>
>>
>> That's exactly what I need, thank you
>>
>>
>>>   The route will start by following the outside edge of the substations
>>> area polygon, but it sounds like that doesn't matter too much to you.
>>>
>>
>> It doesn't matter indeed.
>> But it may be an issue that power lines aren't actually connected to
>> substation perimeter ?
>>
>> Like this one : https://www.openstreetmap.org/way/100500802
>> The outside edge of the substation is the fence surrounding it and power
>> lines goes above it without connection.
>>
>> Should I preprocess my data to make it more accessible to osrm or there's
>> other way ?
>>
>> Francois
>>
>>
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>
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