[OSM-dev] Kothic JS - a full-featured JavaScript map rendering engine using HTML5 Canvas

[Komяpa]

Hi,

2011/6/11 Frederik Ramm <frederik at remote.org>:
> That looks quite impressive. Are the vector tiles generated live or are they
> "pre-rendered"?

Vector tiles are served from cache if it is available there, and are
generated on the fly if there's nothing in cache. Minsk, the "default
city" on demo map, is in cache entirely.

> How long does it take to compute the tiles?

Longer than usual "OSM" mapnik, faster than komap-generated Mapnik
stylesheet - it doesn't have to work around of lots of Mapnik's
problems.

No load balancing / throttling are implemented on serverside for now -
tirex/renderd could be useful if they will let tiles be non-images.

Basically, if you render tens of styles on the same server, kothic-js
will be more effective than mapnik - data is fetched from database
already by the time user needs to render tiles in a second/third/...th
way.

-- 
Darafei "Komяpa" Praliaskouski
OSM BY Team
xmpp:me at komzpa.net mailto:me at komzpa.net