On Wed, Jul 27, 2011 at 4:03 PM, Phil! Gold <[email protected]> wrote: > * Josh Doe <[email protected]> [2011-07-27 10:52 -0400]: >> I'm curious if anyone has ever attempted to convert the massive OSM Mapnik >> stylesheet to one of the CSS-like languages such as Cascadenik or Carto. > > I started trying to do a conversion to Cascadenik, but gave up on it because > Cascadenik was generating tons of unnecessary rules (basically, the cartesian > product of all my selectors) that slowed Mapnik down quite considerably. > Maybe it's possible, but it's certainly not for the faint of heart.
There's a new feature in mapnik to handle this better which carto uses - a flag for mapnik to match only one rule per style. Saves all the "and not X and not (not X and Y)" that Cascadenik generated. I don't know how much it helps though, all my projects have either been XML or cascadenik, or carto, and I've never tried converting one to the other and comparing benchmarks. Cheers, Andy _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
