[OSM-talk] Extra zoom level needed?
Eric Marsden
eric.marsden at free.fr
Mon May 17 20:44:41 BST 2010
>>>>> "md" == Maarten Deen <mdeen at xs4all.nl> writes:
md> Adding a zoomlevel adds 4 tiles for each tile in the previous zoomlevel.
md> You'll go from 91 billion tiles to 366 billion.
md> This meaning you need 4 times the load to generate, 4 times the storage to
md> hold them, 4 times the traffic to display them.
I wonder if it would be sensible to switch to a vector-based rendering
system for high zoom levels, as implemented at http://cartagen.org
(using HTML5 canvas). This would allow "arbitrarily" high zoom levels.
Tile-based rendering performs much better at low zoom levels, but I
suspect that vector-based rendering would work better above z17.
--
Eric Marsden
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