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<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">Hello OpenLayers List users,</font></span></div>
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<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">I'm implementing the cluster strategy and im facing a problem. I have a 500 features on the map from a KML file, with google layer as baselayer.
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<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">With clustering on the KML layer, the map acts really slow. When zooming in, the map acts slower and slower. Every zoom step, the next zoomstep will be slower.</font></span></div>
<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">When clustering is off, the map acts fast again, even it has more features on it.</font></span></div>
<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">I turned of the special styling, but even that does not help in this case. The map keeps acting slow with each zoom action.</font></span></div>
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<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">My site is:
<a href="http://www.getiem.nl/mineralmap/mineralmap.html">http://www.getiem.nl/mineralmap/mineralmap.html</a></font></span></div>
<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">The javascript is on
<a href="http://www.getiem.nl/mineralmap/strahlen.js">http://www.getiem.nl/mineralmap/strahlen.js</a></font></span></div>
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<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">Does anyone have an idea why clustering is slowing down on the zoomed in map?</font></span></div>
<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">Is this a bug or issue to resolve?</font></span></div>
<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">Maybe you see a flaw in my code.</font></span></div>
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<li><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">Steps to reproduce:
</font></span></li><li><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">Zoom in on the map.
</font></span></li><li><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">When zoomed in to lets say the Netherlands, its slowed down to seconds,
</font></span></li><li><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">when zooming further, each step takes longer.</font></span></li></ol>
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<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2"></font></span> </div>
<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">My first insights are: all features are drawn in memory (also features outside map), and thats why it is taking longer when zoomed in: it draws all 500 features. But thats not
satisfying, since loading all features at once and then zooming in is faster.</font></span></div>
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<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2">Greetings</font></span></div>
<div><span class="915373115-17032009"><font face="Arial" color="#0000ff" size="2"><br>
Gerben</font></span></div>
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