[OpenLayers-Users] RE: GisCloud showing tons of vectors features on Web Browser

[Norbert Renner]

Hi,

another example is Kothic JS (http://kothic.org/js/), an open source 
HTML5 canvas renderer based on Leaflet using GeoJSON-like vector tiles [1].

An OpenLayers example using GeoJSON vector tiles in addition to a raster 
map is the Mapnik MetaWriter [2] demo:
    http://r2d2.stefanm.com/mapnik/demo.html

The tile loading is done by a custom (?) Strategy.Grid class. This class 
can also be used, for example, in conjunction with TileStache [3] for 
serving vector tiles, but there are still some challenges, like how to 
best handle features spanning multiple tiles and feature simplification 
when zooming out.

Regards,
Norbert

[1] https://github.com/kothic/kothic-js/wiki/Tiles-format
[2] http://trac.mapnik.org/wiki/MetaWriter
[3] http://tilestache.org/