topic Re: Leaflet Clustering points and ArcGIS API for Javascript in ArcGIS JavaScript Maps SDK Questions

Leaflet Clustering points and ArcGIS API for Javascript

RichardMoussopo — Sat, 11 Dec 2021 18:26:23 GMT

I am really interested in using Clustering points from Esri leaflet and I tried the following

in my index page, I have these references:

And my code is as follow:

map = new Map("map", {
        basemap: "streets",
        center: [-98.198017, 37.485563],
        minZoom: 5,
        zoom: 5,
        slider:false
    });

   var fLayerTest = 'http://...fLayer/MapServer/0';


    var trees = L.esri.clusteredFeatureLayer(fLayerTest).addTo(map);

The code above won't work and also, it does not even give an error.

I am wondering if ArcGIS API is compatible with ESRI Leaflet... in terms of the map reference. Here is the Esri Leaflet I would like to use and at the same time keep the map instance as it is...

Clustering points | Esri Leaflet

Re: Leaflet Clustering points and ArcGIS API for Javascript

TomSellsted — Tue, 24 Mar 2015 19:04:10 GMT

Richard,

I created a very simple cluster map with Leaflet. I do like the way it clusters the points. You can view source on it and see how I am using point clustering. You can view it at:

http://www.yakimawa.gov/apps/postcard/appmap.html

The JavaScript API also allows for point clustering:

Point clustering | ArcGIS API for JavaScript

I am not sure you would want to mix both APIs.

Regards,

Tom

Re: Leaflet Clustering points and ArcGIS API for Javascript

ReneRubalcava — Tue, 24 Mar 2015 19:30:11 GMT

The cluster layer you are trying to use is specific to Leaflet and Esri-Leaflet.

To do clustering in the ArcGIS API for JavaScript, try this layer out. It's still in development, but Esri has forked it and there are already some pull requests to clean it up a bit.

Re: Leaflet Clustering points and ArcGIS API for Javascript

RichardMoussopo — Tue, 24 Mar 2015 21:03:36 GMT

Thank you both Tom and Rene, I guess I am going to use the Clustering in ArcGIS API for Javascript. I really wish I could use ESRI Leaflet for clustering. I tried tsellsteexample but I couldn't get the measurement widget to work as well as the Editor using attribute inspector as they are using the ArcGIS API for Javascript library.

Re: Leaflet Clustering points and ArcGIS API for Javascript

RichardMoussopo — Mon, 30 Mar 2015 19:34:41 GMT

Hi Rene,

Sorry but I am still having a hard time implementing the points clustering using this example: Default Cluster Layer

Re: Leaflet Clustering points and ArcGIS API for Javascript

RichardMoussopo — Mon, 20 Apr 2015 14:34:05 GMT

This is actually a very good concept. I hope this will be available in the 3.14 API. Also, on top of this, it would be great to add an option to be able to label features when displayed.

Re: Leaflet Clustering points and ArcGIS API for Javascript

NickCameron2 — Wed, 10 Jun 2015 13:23:52 GMT

Hi Richard,

I had a similar requirement, not to use leaflet, but for clustering with flares....couldn't find a solution that fit my needs so created a custom layer. Just put it on github, you may find it useful.

https://github.com/nickcam/FlareClusterLayer

Cheers,

Nick

Re: Leaflet Clustering points and ArcGIS API for Javascript

LadislavRozkosny — Thu, 03 Dec 2015 11:54:25 GMT

Can you describe with more details how implement this script? I'm trying implement this to apps and i understand JS slightly. App show data from AGS. Thanks

Re: Leaflet Clustering points and ArcGIS API for Javascript

NickCameron2 — Fri, 29 Jan 2016 05:24:54 GMT

Hi Ladislov,

Sorry I've only just noticed that your message existed.

If you check out the github page and the example in the link provided, the index.html page will give you an example of how to use it.

If by AGS you mean a feature layer from ArcGIS server, then it won't work directly with the layer, you'd have to query the feature layer then format the returned data into an array of javascript objects to feed to the cluster layer.

I've never had the use case to use a feature layer as a data source so never bothered to implement it.

Thanks,

Nick