[OSM-talk-be] replace ref on stops De Lijn with mijnlijn.be/x0xxxx

Jo winfixit at gmail.com
Thu Jan 31 07:55:15 UTC 2013 

Hi,

I like that proposal, but I don't know how to implement it for openlinkmap.
The developer is accepting patches, but he doesn't have time to code stuff
himself anymore.

My initial proposal had the advantage of instant gratification. It would
work with the current tagging habits. It's true that it has the
disadvantage of being dependent on the continued use of that url domain by
De Lijn and it's more verbose than I would like.

One small remark. The way I understand it we are moving to replacing
highway=bus_stop with public_transport=platform. So it should work for that
combination of tags as well.

And it should be enough that a node contains De Lijn. Some stops are shared
with MIVB/STIB, TEC and VEOLIA.

Jo

2013/1/30 Sander Deryckere <sanderd17 at gmail.com>

> I've just been thinking about this issue. And I assume that we're not the
> only one with this problem, where the url you want to see would depend on a
> reference tag.
>
> So, why not create a shared document that defines how to get different
> url's from different kind of tags. I think about creating an XML document
> with an extension of RegExp. Here's an example of what I got this far, for
> simple url tags, for difficult wikipedia tags, and for our example from "De
> Lijn". Also some extensions for images and phone numbers are possible. This
> way, every country could have its own custom links for certain public
> transport things, or restaurant or supermarket chains. It also means that,
> if the url ever changes, only this document needs to be changed, not a
> bazillion of OSM elements.
>
> Here's my example
> http://pastebin.com/QDHJKxtX
>
> Let me explain it.
>
> The top XML node is simple. The subnodes are <link> nodes. They're meant
> to link OSM elements to external stuff (like websites, images, phone
> numbers etc).
>
> A <link> node contains tags, they have a key and value expressed in an
> extension of extended POSIX regex (
> http://en.wikipedia.org/wiki/Regex#POSIX). Basically, during the reading
> of the regex, you also store stuff in variables, which can be used later.
>
> Let me explain the most difficult one, the wikipedia link. The first part
> of the extended regex is "[a-z]*". This stands for the language code, and
> it's stored in variable "l" for later usage (with the syntax "\l"). Then
> you have a column, this sign isn't used in the link, so it's stored in the
> variable "0" (with the syntax "\0"). As a last part, you have a random
> string ".*" and it's stored in the variable "n".
>
> Later, these variables are used in the creation of the url.
>
> The example for De Lijn requires three different OSM tags to be present,
> but only uses the value from the ref tag to create the url.
>
> One link can link a combination of OSM tags to multiple things (like
> multiple urls, or an url and an image).
>
> This is just a proposal btw, the exact syntax is up for discussion. But I
> think it would solve all similar examples as we have with De Lijn, it will
> be beneficial for Openlinkmap, and by creating a standard, the file could
> be shared with other websites and apps too.
>
> The same file could be used to link this node
> http://www.openstreetmap.org/browse/node/724232554 to this page
> http://www.connexxion.nl/dienstregeling/haltedisplay/57002550
>
> If it makes sense to you guys, maybe we should ask openlinkmap to try
> support for such a settings file. If openlinkmap agrees, it could also be
> implemented in other apps s.a. OsmAnd.
>
> Regards,
> Sander
>
>
>
> 2013/1/30 Sander Deryckere <sanderd17 at gmail.com>
>
>> I don't really like this. The problem isn't putting this tag on all
>> existing stops. The problem is communicating this to non-members of this
>> list.
>>
>> I think openlinkmap and other data users should in the end know that
>> operator="De Lijn"+ref=x0xxxx translates to the url mijnlijn.be/x0xxxx.
>>
>> It's easier to patch their software than to learn all mappers what to put
>> in the url tag.
>>
>> Just my opinion though.
>>
>> Regards,
>> Sander.
>> On 30 Jan 2013 14:15, "Ben Abelshausen" <ben.abelshausen at gmail.com>
>> wrote:
>>
>>> +1 on the url=http://mijnlijn.be/#{ref} feature!
>>>
>>> Does anyone have the time to actually translate this into code?
>>>
>>> On Wed, Jan 30, 2013 at 1:38 PM, Wim Crols <wim at crols.be> wrote:
>>>
>>>> on the wiki page it says the following
>>>>
>>>> https://wiki.openstreetmap.org/wiki/OpenLinkMap#Contribute
>>>>
>>>> *Programming:* You created an interesting new feature or fixed a bug
>>>> in the existing code? Please send me your code and I will add it.
>>>>
>>>> on second thoughts it would even be better that openlinkmap would
>>>> support this kind of url
>>>>
>>>> url=http://mijnlijn.be/#{ref}
>>>>
>>>> where it will replace a placeholder with the contents of a tag with the
>>>> name of the placeholder.
>>>> This is more versatile and could be used for other purposes too.
>>>>
>>>>
>>>> On Wed, Jan 30, 2013 at 11:26 AM, Jo <winfixit at gmail.com> wrote:
>>>>
>>>>> I asked the admins of openlinkmap if this is even possible, but I'm
>>>>> still waiting for a reply, of course. I was planning to wait for their
>>>>> answer to react to Wim's suggestion.
>>>>>
>>>>> Jo
>>>>>
>>>>>
>>>>> 2013/1/30 Ben Abelshausen <ben.abelshausen at gmail.com>
>>>>>
>>>>>> I guess that would mean adapting openlinkmap specifically for
>>>>>> mijnlijn.be. Is that a good idea?
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Ben
>>>>>>
>>>>>>
>>>>>> On Wed, Jan 30, 2013 at 10:26 AM, Wim Crols <wim at crols.be> wrote:
>>>>>>
>>>>>>> I would suggest the following
>>>>>>>
>>>>>>> Leave ref tag as it is "ref=x0xxxx"
>>>>>>> Put in url tag the following "http://mijnlijn.be/"
>>>>>>>
>>>>>>> And make a software patch for openlinkmap to show the correct link
>>>>>>> on existence of the following tags
>>>>>>>    highway = bus_stop
>>>>>>>    operator = De Lijn
>>>>>>>    ref = 303119
>>>>>>>    url = http://mijnlijn.be/
>>>>>>>
>>>>>>> Regards
>>>>>>>
>>>>>>> Wim Crols
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>  On Wed, Jan 30, 2013 at 9:31 AM, Jo <winfixit at gmail.com> wrote:
>>>>>>>
>>>>>>>>  Hi,
>>>>>>>>
>>>>>>>> Historically we have been putting the 6 digit serial number we
>>>>>>>> found on the stops of De Lijn into ref. I would like to propose to move
>>>>>>>> them to:
>>>>>>>>
>>>>>>>> url=mijnlijn.be/x0xxxx
>>>>>>>>
>>>>>>>> That way they would be a lot more useful on sites like openlinkmap:
>>>>>>>>
>>>>>>>>
>>>>>>>> http://www.openlinkmap.org/?zoom=18&lat=50.87952&lon=4.69273&layers=B
>>>>>>>>
>>>>>>>> The link translates to a webpage with realtime information of the
>>>>>>>> buses that serve the stop and it's very convenient to be able to click
>>>>>>>> through on them with a smartphone, a tablet or even from the desktop.
>>>>>>>>
>>>>>>>> To avoid redundancy I wouldn't keep the number in ref anymore. It's
>>>>>>>> quite specific to De Lijn, so somebody who wants to do something with those
>>>>>>>> serial numbers, can just as well extract them from the url.
>>>>>>>>
>>>>>>>> Jo
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
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