[OpenLayers-Dev] tilecache for vector data

[Guillaume Sueur]

thank you very much for these informations Matt  !



mpriour a écrit :
> This IS definately an idea that has merit. A number of other people have
> discussed this issue. Tiled vector datasets work well for points, pretty
> good for lines, but run into some serious issues with polygons.
> There is already a python based tool developed by Microsoft Research Labs
> that breaks up point & line datasets into small javascript files containing
> object literals (I don't know if GeoJSON is used or some other format). You
> can find this at:
> http://research.microsoft.com/MapCruncher/TiledVectors/TiledVectorsDemo-1.1/description.html
> http://research.microsoft.com/MapCruncher/TiledVectors/TiledVectorsDemo-1.1/description.html 
> 
> You can also read some ideas on this on the MapWrecker blog (the most
> interesting part is in the comments section):
> http://mapwrecker.wordpress.com/2007/07/17/well-know-vs-rational-vector-delivery/
> post 1 ,
> http://mapwrecker.wordpress.com/2007/08/24/rational-vector-delivery-pre-game/
> post 2 
>  hope that helps validate your idea and give you some perspective on what
> other's have thought about this problem.
> Matt Priour
> Kestrel Computer Consulting
> 
> 
> Guillaume Sueur-2 wrote:
>> Hi,
>>
>> Has anyone of you had a thought about caching vector data in a web 
>> format (GML, GeoJSON, GeoRSS...) ?
>> What I mean is a tilecache system for which one would set a tolerance 
>> depending on the scale, and which would store the little files 
>> corresponding to the generalized original data on the tile extent.
>>
>> Do you think the performances of vector display would be increased or is 
>> this idea complete crap ?
>>
>> Thanks
>> -- 
>> Guillaume SUEUR
>>
>>
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>>
> 

-- 
Guillaume SUEUR
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