[OpenLayers-Dev] Bug in rendering features with cluster strategy

Ivan Grcic ivan.grcic at geofoto.hr
Mon Nov 3 03:53:28 EST 2008

Yup, its not Cluster Strategy...

On Mon, Nov 3, 2008 at 9:11 AM, Eric Lemoine <eric.c2c at gmail.com> wrote:
> Hi.
> Yes, this looks like a bug in OpenLayers.
> I'm under the impression that this isn't a bug in the cluster strategy
> but either in Layer.Vector or in Control.SelectFeature. Indeed, I
> think SelectFeature calls layer.drawFeature on feature
> selection/unselection without checking whether the feature is in the
> layer. And i'm saying this may be a bug in Layer.Vector because it may
> be that drawFeature should be responsible for checking whether the
> feature is in the layer before actually drawing it.
> This is just coming from the top of my head so i may be wrong, but i'm
> feeling this is a good track to follow :)
> Eric
> 2008/11/2, Ivan Grcic <ivan.grcic at geofoto.hr>:
>> Hi list,
>> i discovered a bug while developing my OL application, in cluster
>> strategy class.
>> Bug occurs when you hover over one feature that represent a cluster
>> (or externalGraphic or like in cluster example - vector circle
>> http://openlayers.org/dev/examples/strategy-cluster.html)
>> When you zoom in/out while that feature-cluster is selected (by
>> quickly double-clicking or easier using scroll on ur mouse), on next
>> zoom that cluster is rendered (stays on screen) together with newly
>> created clusters! And clearly it shouldnt be there. The old
>> ("phantom") cluster is not selectable, as he doesnt exist on the new
>> zoom level..he just stays there on screen...annoying me :)
>> As you zoom in again and again, phantom clusters always render, always
>> at the same position in the map div...
>> Please confirm that this is a bug, im going crazy here with this one :|
>> --
>> Ivan Grcic
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Ivan Grcic

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