[OpenLayers-Users] Large Vector Layer
cholmes at openplans.org
Thu Aug 16 14:14:38 EDT 2007
Gregor Mosheh wrote:
> Scott Davis wrote:
>> I have a datalayer that has ~10,000 bus stops (points).
> WFS is basically like GeoRSS in that it communicates XML about vector
> data, and that the browser must decipher the XML. Differrence 1 is that
> it can describe more than a point; difference 2 is that it's even more
> verbose and therefore XML parsing is even slower.
Well WFS can return things other than XML, at least for getting
features. GeoServer now has a geojson plugin.
> So if you're in a circumstance (say, zoomed out to the city-wide view)
> where you'll want to see 1,000 points or even 500, you probably won't
> enjoy the effect.
> This has been a thorn in my side for a few years, wanting to use WFS but
> finding it impractical for any significant scales of use.
This is true, I agree that WFS does not solve this problem. The spec
authors may say that it's not the problem they were wanting to solve. I
personally think it's a very important problem, but will probably take a
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