topic Re: Cluster for graphic layer Arcgis Javascript 3.x in ArcGIS JavaScript Maps SDK Questions

Cluster for graphic layer Arcgis Javascript 3.x

ADITYAKUMAR1 — Tue, 10 Sep 2019 15:07:29 GMT

I have a graphic layer.

I want to cluster this data and display cluster on map(Arcgis JavaScript 3.x)

Any idea?

Re: Cluster for graphic layer Arcgis Javascript 3.x

BenElan — Tue, 10 Sep 2019 18:00:02 GMT

Hi Aditya,

Here are some samples for clustering in 3x:

Point clustering | ArcGIS API for JavaScript 3.29

Toggle point clustering | ArcGIS API for JavaScript 3.29

Re: Cluster for graphic layer Arcgis Javascript 3.x

ADITYAKUMAR1 — Sat, 11 Dec 2021 16:44:42 GMT

Hi Ben,

clusterLayer = new ClusterLayer({
              "data": photoInfo.data,
              "distance": 100,
              "id": "clusters",
              "labelColor": "#fff",
              "labelOffset": 10,
              "resolution": map.extent.getWidth() / map.width,
              "singleColor": "#888",
              "singleTemplate": popupTemplate
            });

In my case what will be the data?

Thanks

Kumar

Re: Cluster for graphic layer Arcgis Javascript 3.x

BenElan — Sat, 11 Dec 2021 16:44:45 GMT

This is how I would turn on clustering

var layer = new FeatureLayer(serviceUrl, {
      featureReduction: {
        type: "cluster"
      }
})‍‍‍‍‍

Here is a simple sample to demonstrate the code above

Re: Cluster for graphic layer Arcgis Javascript 3.x

VictorTey — Thu, 12 Sep 2019 02:54:57 GMT

Hi ADITYA KUMAR‌, the data will be

photoInfo.data = arrayUtils.map(resp, function(p) {
var latlng = new Point(parseFloat(p.lng), parseFloat(p.lat), wgs);
var webMercator = webMercatorUtils.geographicToWebMercator(latlng);
var attributes = {
"Caption": p.caption,
"Name": p.full_name,
"Image": p.image,
"Link": p.link
};
return {
"x": webMercator.x,
"y": webMercator.y,
"attributes": attributes
};

so basically an array with the following structure.

{
"x": 120,
"y": -32,
"attributes": {

                     "Caption": "caption",
     "Name": "a name",
         "Image": small.jpg,
    "Link": "http link"

}
};

Re: Cluster for graphic layer Arcgis Javascript 3.x

CRSC — Mon, 30 Aug 2021 07:19:15 GMT

Hi Adithya, Can you pls tell me which module have you imported for ClusterLayer? Currently i'm using 4.20 JS API version.

Re: Cluster for graphic layer Arcgis Javascript 3.x

RaviVadlamani — Thu, 07 Sep 2023 16:44:16 GMT

Is it possible to add clustering to graphics layer in version 4.27 ?
featureReduction props is not available in the docs also.

https://developers.arcgis.com/javascript/latest/api-reference/esri-layers-GraphicsLayer.html#properties-summary

Is it possible to have clustering if it has only points geometry in graphics layer ? i know Polygon and Line string is not supported