<br><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Evan James Bowling</b> <span dir="ltr"><<a href="mailto:evan.bowling@gmail.com">evan.bowling@gmail.com</a>></span><br>
Date: Tue, Feb 9, 2010 at 3:52 PM<br>Subject: Re: [OpenLayers-Dev] Grid-style loading of Markers<br>To: Matt Williamson <<a href="mailto:MatthewDW@gmail.com">MatthewDW@gmail.com</a>><br><br><br> 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.<br>
<br> There are also ways to <a href="http://dev.openlayers.org/docs/files/OpenLayers/Strategy/Cluster-js.html" target="_blank">cluster a large set of data points</a> 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.<br>
<br>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).<br><br>Hope some of this helps.<br><font color="#888888"><br>
Evan Bowling</font><div><div></div><div class="h5"><br>
<br><div class="gmail_quote">On Tue, Feb 9, 2010 at 2:38 PM, Matt Williamson <span dir="ltr"><<a href="mailto:MatthewDW@gmail.com" target="_blank">MatthewDW@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Devs,<br>
<br>
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...<br>
<br>
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.<br>
<br>
I found this post on the dev list, which sounds pretty much exactly like what I want to do...<br>
<br>
<a href="http://openlayers.org/pipermail/dev/2009-January/004222.html" target="_blank">http://openlayers.org/pipermail/dev/2009-January/004222.html</a><br>
<br>
But it was using stuff from the vector behaviors sandbox, which hasn't been touched in a year, it looks like.<br>
<br>
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.<br>
<br>
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.<br>
<br>
Thanks!<br>
<br>
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