I get the same behavior as Ivan's on my application which has very similar resolution settings on map an vector layer.
Because a layer's features are not destroyed when it goes out of range (inRange) or becomes invisible (visibility), the cluster strategy still clusters those existing features. I don't have that many features to display when the layer becomes inRange, so I never noticed any slowing down. Alexandre Ivan Grcic wrote: > This post evolved from previous discussion named "bbox strategy and zooming" > > Clustering features with cluster strategy takes some time. If there > are many features to cluster, it will take even more time :) > > So there are some scenarios where clustering shouldnt be recalculated. > > Example: > I want to see my cluster layer only after 5th zoom level. No > clustering should be made when i play on zoom level 0-4 with other > layers, > because it slows things down, and the cluster layer is still not > visible at all (its only clustering features in background) > > It should only cluster when layer is visible (and the current map > resolution is inside array resolution of clustered layer, if we define > seperate set of resolution) > > So if map has: > resolutions: [0,1,2,3,4,5,6,7,8,9] > > and vector layer: > resolutions: [5, 6, 7, 8, 9] > > clustering should occur only on vector layers resolution :5, 6, 7, 8 and 9. > > I hope you see where im pointing now, > > Best regards, > > > -- Alexandre Dubé Mapgears www.mapgears.com _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev
