---------- Forwarded message ---------- From: Evan James Bowling <evan.bowl...@gmail.com> Date: Tue, Feb 9, 2010 at 3:52 PM Subject: Re: [OpenLayers-Dev] Grid-style loading of Markers To: Matt Williamson <matthe...@gmail.com>
What do you think about just limiting which points get loaded? This would still need a bit of a server component but it wouldn't be anything as big as Geoserver. There are also ways to cluster a large set of data points<http://dev.openlayers.org/docs/files/OpenLayers/Strategy/Cluster-js.html>such that only a manageable amount would be displayed. I have messed with this functionality much myself, but I intend to give it a shot soon. Unless you are willing to restrict the zoom interface to only a few levels it seems like generating that amount of tiles would be more work than its worth ( just my opinion). Hope some of this helps. Evan Bowling On Tue, Feb 9, 2010 at 2:38 PM, Matt Williamson <matthe...@gmail.com> wrote: > Devs, > > I posted this to the Users list, but the devs list might have made more > sense, since part of the question has to do with the vector behaviors > sandbox in SVN... > > I am looking for a way to load statically stored "tiles" full of marker > information, so I can do progressive disclosure of a large point dataset > (and I don't have access to Geoserver or similar server-side component). My > maps are spherical mercator/Google based, so loading the markers in tiles > makes sense. > > I found this post on the dev list, which sounds pretty much exactly like > what I want to do... > > http://openlayers.org/pipermail/dev/2009-January/004222.html > > But it was using stuff from the vector behaviors sandbox, which hasn't been > touched in a year, it looks like. > > So my question is: Is there a standard way to do something like this? From > static tile files on the server filesystem (probably GeoJSON format)? I know > the "right" answer is to set up a WFS server somewhere, but that's out of > the question in the short term. Plus, my point locations change very seldom, > so Geoserver would really be overkill anyway. > > I was going to try writing my own OpenLayers.Layer.Grid and OpenLayers.Tile > subclasses, but I wanted to check if there's an existing way to do this that > I've missed, or if the OpenLayers.Strategy.Grid stuff in the vector > behaviors sandbox stuff is still a valid way to go. > > Thanks! > > _______________________________________________ > Dev mailing list > Dev@openlayers.org > http://openlayers.org/mailman/listinfo/dev >
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