Clusters blinking on updating its markers

[aneela1191]

Steps to reproduce

1. Create a cluster
2. Add a marker every second
3. Clusters and markers keep blinking/flashing

Code example

https://jsfiddle.net/qwe3d1Lm/1/

[wangela]

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@aneela1191 Thank you for opening this issue. 🙏
Please check out these other resources that might help you get to a resolution in the meantime:

• Check the issue tracker - bugs and feature requests for Google Maps Platform APIs and SDKs
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This is an automated message, feel free to ignore.

[jiikoosol]

I'm having the same issue, is there some workaround to fix it?

[h3]

Been banging my head on this issue for a good while now .. seems like this PR solves it: #802

Unfortunately it is still not being merged :/

[james-astra]

Can this be merged?

[usefulthink]

Unfortunately not, mainly because there is no Contributor License Agreement for the contribution, but also because it doesn't fix the issue and instead just patches a symptom.

I'm going to spend some time on this project soon, so I'll have a look into the root-cause.

[james-astra]

Unfortunately not, mainly because there is no Contributor License Agreement for the contribution, but also because it doesn't fix the issue and instead just patches a symptom.

I'm going to spend some time on this project soon, so I'll have a look into the root-cause.

That's great thanks a lot!

I use this package for clustering hundreds of vehicles on a map, which change positions dynamically constantly. There seems to be another issue with getting the cluster to be smoothly re-calculated, say I have 100 vehicles as markers in the cluster, when new location information comes in over websockets, I find the associated marker in the MarkerClusterer.markers and set the position, this works great but then I can't get the clusters to be correctly re-drawed if they need to be.

I can get them to redraw by clearing all of the markers and re-creating the clusterer however this has a laggy blink effect as described in this issue. I have tried called .render() on the clusterer but it seems to render from the non-updated location, changing .location in the MarkerClusterer.markers does not seem to affect the render.

I have opted to recluster every 5 minutes.

[Dildar-Khan]

@aneela1191 I checked your code example it is blinking/flashing because of using setInterval, remove setInterval. Also Cluster adds all marker at once not every seconds.

[TomasSadone]

Unfortunately not, mainly because there is no Contributor License Agreement for the contribution, but also because it doesn't fix the issue and instead just patches a symptom.
I'm going to spend some time on this project soon, so I'll have a look into the root-cause.

That's great thanks a lot!

I use this package for clustering hundreds of vehicles on a map, which change positions dynamically constantly. There seems to be another issue with getting the cluster to be smoothly re-calculated, say I have 100 vehicles as markers in the cluster, when new location information comes in over websockets, I find the associated marker in the MarkerClusterer.markers and set the position, this works great but then I can't get the clusters to be correctly re-drawed if they need to be.

I can get them to redraw by clearing all of the markers and re-creating the clusterer however this has a laggy blink effect as described in this issue. I have tried called .render() on the clusterer but it seems to render from the non-updated location, changing .location in the MarkerClusterer.markers does not seem to affect the render.

I have opted to recluster every 5 minutes.

Hi James, pretty late to the party, but have you came up with a solution for this? I am facing a similar issue and I'd be grateful if you shared a solution.