How about generic view transform to allow affine transformations (rotation, scale etc). I'd like to add this feature in mapnik2.
Regards, Artem 2010/3/19 Iván Sánchez Ortega <[email protected]>: > On Friday 19 March 2010 10:21:30 Frederik Ramm wrote: >> 1. Invent a custom projection that will do it for me. - Is the whole >> proj4 projection support versatile enough for that (even if I wanted to >> rotate not by 180 degrees but, say, by 131 degrees)? > > I'm pretty sure it can be done. If you use WKT strings instead of proj4 > string, you'll be able to invert the axis accordingly > >> 2. Tell Mapnik to render the labels and symbols at 180 degrees angle, >> and later rotate the resulting bitmap. > > Sounds like an ugly hack. I wouldn't do it. > >> Other ideas, experiences? > > The obvious one: dump the data on PostGIS, then run a clever query to invert > the latitude. Or invert the latitude just before dumping to PostGIS. > > > Cheers, > -- > ---------------------------------- > Iván Sánchez Ortega <[email protected]> > > http://ivan.sanchezortega.es > MSN:[email protected] > Jabber:[email protected] ; [email protected] > IRC: ivansanchez @ OFTC & freenode > _______________________________________________ > 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
