Using datas from database into CSS stylesheet parameters

[artemp]

Hello,

While contributing some bus routes on [http://www.openstreetmap.org/ OpenStreetMap] and trying to render them with their respecitve official colours, I wondered if it was possible to implement into mapnik a feature allowing to set datas in the stylesheet issued from the postgreSQL database.

For example, the subway lines in Paris have a specific and "official" which could be described in the OSM database (as well as the postgresql database) as a column "color" ; it could be a useful and very nice feature if we could use this parameter directly into the directive, as something like :

{{{ }}}

{{{ 5 }}}

{{{ [color] }}}

{{{ }}}

Thanks

[artemp]

[springmeyer] Yes, this would be a welcome feature I think to many users. For now however, I'm going to push this ticket to the next milestone as we won't have time to address this in the next release.

[artemp]

[springmeyer] see also #352

[artemp]

[springmeyer] fyi, work has started on this in trunk, please provide any feedback:

http://mapnik.org/news/2009/dec/08/future_mapnik2/
http://trac.mapnik.org/wiki/Mapnik2

[springmeyer]

done now: #2224