This would be useful to fix an issue I'm dealing with. Though there may be better fixes for the issue, perhaps someone can point me in the right direction if this could be the fix or if I should open a new issue:

I have some buttons which allow to show only certain categories of entities. So clicking on one of these buttons will hide all entities except those in the specific category; in case the entities are in that category they will be set to show. However I am finding when "activating" a category of entities, the entities that are clustered are correctly hiding the single billboards (only the cluster billboard is showing), whereas the single labels are not hiding (I'm seeing strange behaviour, such as empty labels showing, or a few characters of the labels showing!).

I thought a way to fix this might be to check whether each entity is in a cluster or not; if it's in a cluster I will explicitly hide it's label, if not I will explicitly show it's label. However I don't seem to have any way of telling whether an entity is currently in a cluster, since there is no "decluster" event...

I have put together an example in the Sandcastle. If you zoom into the area around Rome, where there are four markers, until all the markers are visible, and then click on the filter buttons at the top of the screen, not all of the labels will show when the markers show again. This is because I am keeping track of the latest "clustered" entities, but I have no way of knowing if they have been "declustered".

If you deselect "try to fix the label problem", you will see the original problem: try zooming far enough away that some entities will be clustered. Then try clicking on the filter buttons. When showing the entities for the Rome area, the cluster billboard will show but so will a few empty or partially filled labels 🤦

Include declustered entities in cluster callback #5760

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