[OSM-dev] openstreet map and wms

Artem Pavlenko artem at mapnik.org
Mon Jun 18 22:22:54 BST 2007


On 18 Jun 2007, at 22:12, Jachym Cepicky wrote:

> Hi,
>
> keeping the discussion warm: What about WFS?

Lol :D I no.. WFS is back on this list.

> I mean, Open Street map is
> about open data and WMS is only a "view" on them. WFS is, what the  
> users
> do actually want - known standard, which takes care on the access  
> to the
> produced data.
>
> What do you think about it?

Well, not much. Remember, you have access to data already, through APIs.
If you're into OGC standards:
osm2psql -> postgis (Simple Features for SQL) you got it.

CHeers,
Artem

>
> Thanks
>
> Jachym
>
> Frederik Ramm píše v Po 18. 06. 2007 v 22:17 +0200:
>> Hi,
>>
>>> Mapnik has got WMS 1.1.1/1.3.0 implemented in Python since 0.3.  
>>> You can
>>> project vector data on fly, specify layers etc.
>>
>> Does that mean we could offer full WMS capabilites and are not  
>> doing it
>> only because we don't have a suitable machine to host it?
>>
>>> Anyone can setup basic WMS using planet.osm/osm2pgsql/postgis/ 
>>> mapnik in no time. But why? Using
>>> 'tiles' is by far better (more scalable) way to deliver base maps  
>>> on the web.
>>
>> If you're happy with the one projection that we offer, and if you  
>> want
>> base maps for the web, then yes. But if you're a GIS guy creating  
>> maps
>> somewhere, you will want to import your base map in the projection  
>> you
>> need, maybe even with some layers selected and some deselected.  
>> That's
>> obviously far superior to having just one base map, in a limited  
>> number
>> of zoom levels, with layers and projection selected by the  
>> renderer (and
>> not you).
>>
>> As faw as I am aware, you can have this flexibility currently only if
>> you install Mapnik yourself and tune the styles to your needs.  
>> This is,
>> again obviously, something that 95% of people who might want to  
>> access a
>> WMS service cannot do.
>>
>> It would be very cool and a giant step ahead of our "competitors"  
>> if we
>> could offer a full WMS base map.
>>
>> Of course tiles are easier to do but they offer only a fraction of  
>> what
>> a proper WMS service would.
>>
>> Bye
>> Frederik
>>
> -- 
> Jachym Cepicky
> e-mail: jachym.cepicky at gmail.com
> URL: http://les-ejk.cz
> GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub
>

Artem Pavlenko
http://mapnik.org



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