How to check an entity is clustered or declustered?

[zxue]

1. A concise explanation of the problem you're experiencing.

I am looking for a way to check whether an entity gets clustered or declustered from a cluster.

2. A minimal code example. If you've found a bug, this helps us reproduce and repair it.

I am using the clusterEvent callback function. What should I do from this point:

markersDataSource.clustering.clusterEvent.addEventListener(function(clusteredEntities, cluster) {
    // check an entity is clustered or declustered
}

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

I have different behavior for entities and clusters on my map.

4. The Cesium version you're using, your operating system and browser.

I am using ceisum 1.35, windows, and chrome browser

[zxue]

Or say, is there any way to divide the markers into two groups (clustered markers vs single makers) in the callback function? 

[zxue]

Is there any event I could know that the markers get declustered?

[Gabby Getz]

Hi,

So the clusterEvent callback function parameter only includes the entities that are included clustered. (https://cesiumjs.org/Cesium/Build/Documentation/EntityCluster.html#~newClusterCallback)

I have opened a new issue in the cesium repo to request declustered entities in the callback function: https://github.com/AnalyticalGraphicsInc/cesium/issues/5760. Please add comments there if you have any additional information to include.

Thanks!

Gabby

[zxue]

Hi Gabby,

Thanks so much for help!