Hi
Am 04.11.2012 05:06, schrieb Kai Krueger:
Overall this works very well in combination with e.g. KothicJS[2].
However, as text based json is not very space efficient, Cover stores
the json compressed in the metatiles.
Mod_tile can't yet natively deal with this and doesn't automatically set
the HTTP header Content-Encoding: gzip and I'd like to fix this.
Just a thing I stumbled across the other day:
http://code.google.com/p/protobuf-js/
It's a really small library but it could save us, together with some
tricks, a lot of the GeoJSON-overhead. Possible tricks could be the
mentioned Transfer-Encoding: gzip, using Integers for the Coordinates,
store only the difference to the prev. coordinate, using a stringtable
-- pretty much what the osm.pbf format useses to make our files smaller.
Peter
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