[OpenLayers-Dev] TMS vector tiles

[Jack Greenbaum]

I posted this on openlayers-users about a GeoJSON hack I did in OL2. 
http://osgeo-org.1560.x6.nabble.com/GeoJSON-tiles-tt5104115.html

-- Jack

On 04/08/14 22:51, Luca Morandini wrote:
> G'day everyone,
>
> I know this has been proposed before, and taht there are vector tiles 
> available in OL3, but... we (the AURIN project) cannot wait for OL3, 
> and we do need vector tiles now. I was tasked with sounding out the 
> feasibility of it, hence bear me while I state my case.
>
> I have developed a nice vector tile server in Node.js, backed by 
> PostGIS and using CouchDB as cache; the output formats are GeoJSON and 
> TopoJSON.
>
> To use the tiles produced by said server I need, of course, a client, 
> possibly one merging tiled polygons into the original ones when the 
> format is TopoJSON (the end result is a seamless layer).
>
> I developed such a client with Leaflet, backed by JSTS and D3 for the 
> merging bit, and it works rather well; I tried to do the same with OL3 
> Beta4, but failed... hence I would like to give OL2 a try (our current 
> UI is built on OL2).
>
> Having said that, I would like to know what's the state of the art 
> related to TMS vector tiles in OL2.
> As far as I know, there was an attempt (see links below), but it did 
> not make it to the code base: does anyone know if there had been a 
> blocker during the implementation of this capability ?
>
> In addition, I would love to here comments and hints on how to 
> implement this TMS-TopoJSON-cum-merging layer type.
>
> http://openlayerstools.sourceforge.net/src/Strategy_TFS.js
> http://openlayerstools.sourceforge.net/examples/TFS.html
>
> Regards,
>
> Luca Morandini
> Data Architect - AURIN project
> Melbourne eResearch Group
> Department of Computing and Information Systems
> University of Melbourne
>
>
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