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how to retain layer original symbol if single feature else create cluster symbol

ShefaliMantri

Hello Team,

I have a simple picture marker symbol feature layer.

Requirement - When we turn ON cluster for that layer if single feature, then it should display layer original picture marker symbol and if more than 2 features, then it should display cluster symbol (simple marker symbol) with labels. When we turn OFF cluster, then layer will display as its initial state i.e. only picture marker symbols

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Accepted answers

Lerman

Is that what you want? https://codepen.io/xiej/pen/oNpLyJY

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MikeVolz

Also interested in knowing if this is possible.

UndralBatsukh

Hi there,

You can use the layer' queryFeatureCount method to get the count of features in the service/layer. Then you apply Clustering or remove the clustering and apply the original renderer based on the count returned from the method.

Here is a simple test app showcases how this can be done. But please note that it is a contrived app: https://codepen.io/U_B_U/pen/yLPWEgZ?editors=1000

ShefaliMantri

Thank you @UndralBatsukh for responding.

Requirement is when a cluster is ON and on the map some feature is single, some are not. When single feature on the map, then it shows layer original symbol, i.e. picture marker and club features shown as cluster simple circle with labels.

So at same time both picture and simple marker symbols will present on map for same layer.

UndralBatsukh

Oh doh! Completely missed the point. 🙂 Sorry about that.

This is not possible currently. We do have plans to support this scenario. I will update you once we add support for this.

-Undral

ShefaliMantri

Ok @UndralBatsukh

Thank you

Lerman

Is that what you want? https://codepen.io/xiej/pen/oNpLyJY

ShefaliMantri

Yes@Lerman

Thank you

MikeVolz

Can you please explain how you did this in words as this is the behavior I am also looking for with clustering when using a unique value renderer?

ShefaliMantri

In my project we have simple renderer feature layers and a toggle button to turn ON/OFF cluster. When cluster is ON, I replaced layer simple renderer to class break renderer as shown in https://codepen.io/xiej/pen/oNpLyJY

Lerman

Sorry for the late reply. I found that when a cluster is ON , this layer generates a new field cluster_count which can be used in the renderer. I think it works for unique value renderer as well.

Lerman

As an additional note, when a clustered layer contains a UniqueValueRenderer, the clustered graphics are rendered with the symbol of the most common, or predominant, value of the uniqueValueInfos of the features represented by the cluster.
There is no such interface setting if you want to make the clustered graphics use the same symbol. It is difficult to implement this requirement as the cluster_count field cannot be used for arcade expressions and layers with a UniqueValueRenderer may not contain multiple fields when cluster is enabled. I have tested this and can only use two layers, one showing the graphics before cluster and one showing the graphics after cluster. demo: https://codepen.io/xiej/pen/LYexXNY?editors=0010

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