Show cluster count 1

AntonioGallo — Fri, 03 Jun 2022 03:43:28 GMT

Hello,
i am using GeoJSONLayer with featureReduction to show the cluster in the Map.

I need to show on the map also the cluster that count 1.
I read that: "There's no such thing as clusters with a count of one. If a feature does not belong to a cluster, it is rendered by itself according the configuration defined in the layer's renderer."

However i do not understand how to define the configuration in the layer's renderer to show point do not clustered on the map.

I am using version javascript 4.23

Re: Show cluster count 1

KristianEkenes — Wed, 03 Aug 2022 19:22:47 GMT

Hi @AntonioGallo ,

The configuration API for cluster labels and popups is very similar to the layer labels and popups. To label clusters and individual features, you need to use the following:

layer.featureReduction = { type: "cluster", labelingInfo: [ // define label classes here for clusters ] }; layer.labelingInfo = [{ // define label classes here for individual features }];

This sample application does both, though I admit the label classes are a bit more complex as they handle different styles and label placements at various scale levels: https://developers.arcgis.com/javascript/latest/sample-code/featurereduction-cluster-filter-slider/

See the image below:

The green point indicated by the red arrow is an individual power plant. It is not labeled with a "1", but rather with the information for the plant itself in the layer.lablingInfo property (since it is not a cluster). The other blue symbols are clusters of 4 and 5 power plants respectively. Those labels are defined on the layer.featureReduction.labelingInfo property. Notice the label placement is different. That is because each label comes from a different label class, which is defined based on the average size of power plant in the cluster.

Hopefully that helps.

Kristian

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Show cluster count 1

Re: Show cluster count 1