Thanks Mark,

It's already got quite a complex indexing algorithm based on a 4-ary
b-tree - check MapLayerModel.getShapes() for an idea how it works.  My ideal
solution (hopefully in place by MXDU) would be to keep the full 10,000,000:1
dataset on the server and move most of MapLayerModel up into a cfc, with a
local shared object cache of downloaded shape data.  I've got a start on the
server piece - the data swf actionscript is generated by a ColdFusion script
that parses the original MAPINFO export files and creates the index.

Robin


"Mark M" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]
>
> Without looking at it Robin, sounds to me like you want to do something
clever like only keep
> a 10x10 square around what you are currently looking at through your
camera in memory, and
> then dump out the rest when it's past it's useful point.
>
> Make it alot more memory friendly.
>
> If you pick your numbers right, should be no reason why you can't load up
images while the
> user is browsing around - and they shouldn't notice a thing.
>
> Just some ideas.
>
> Mark



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