Thanks for your answer Nicolas. Yes As far as I understand the solution you propose is actually a loooot of work :) As my X, Y attributes are stored in a polygon layer (parcels) i have to build first a point layer from my X, Y attributes ? And a another line layer for angles.
In fact i would really like to minimize post-processing on the original database :( I see also that dx & dy parameters seem to be expressed in pixels ? I also need to convert X,Y from map coordinates to pixels ? I won't be able to do this operation with a simple XML config file? right ? Ludovic Nicolas Gillet wrote: > > Hello Ludovic. > > TextSymbolizer can place a label pretty much everywhere from a point using > the dx and dy parameters but indeed there is no angle parameter. > > But if you really need such feature, you could create a new datasource > from > the one you have. > With a point and an angle and a little bit of math you can create 2 points > and make a linestring out of it. Then displaying your label on this > linestring will give you the result you're searching. > > This is probably a lot of work, but I don't have any better solution for > now. > > Nicolas > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Lunieme > Sent: Thursday, July 29, 2010 10:40 AM > To: [email protected] > Subject: [Mapnik-users] Problem rendering french cadastre : text / symbol > placement > > > Hi List, > I'm looking for a way to render french cadastre (the national land > registry > with all parcels, streets, roads, names, building feet...) with Mapnik. > > We are actually using Mapguide OS as rendering system but i'm convinced > Mapnik could bring us many benefits even if the job is quite heavy. > > I am now facing 2 problems with labels and points placement: > > Each label placement is defined in national database as fields : X, Y > position given in maps units and ANGLE given in degrees. > > In the same way point placement is also defined with ANGLE field. > > TextSymbolizer and PointSymbolizer do not seem to have a POSITION and > ANGLE > option. > Is there a solution? Would these options will be added in the near future. > It could be a great improvement. > > Ludovic > > http://old.nabble.com/file/p29294250/17_7.png > -- > View this message in context: > http://old.nabble.com/Problem-rendering-french-cadastre-%3A-text---symbol-pl > acement-tp29294250p29294250.html > Sent from the Mapnik - Users mailing list archive at Nabble.com. > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users > > -- View this message in context: http://old.nabble.com/Problem-rendering-french-cadastre-%3A-text---symbol-placement-tp29294250p29296541.html Sent from the Mapnik - Users mailing list archive at Nabble.com. _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
