topic Re: Can measurement tool graphics be persisted? in ArcGIS JavaScript Maps SDK Questions

Can measurement tool graphics be persisted?

DaveSouthern — Fri, 12 May 2017 19:11:07 GMT

I have a requirement from the customer to persist measurements made by the measurement tool i.e. have multiple measurement lines on the map simultaneously and be able to save these between sessions. I checked out the documentation links below but haven't been able to see how this could be done. It doesn't appear that the measurement tool has a layer associated with it, but maybe I'm missing it.

Is there a way to do what I'm thinking about - even if I have to kludge my way into it somehow?

Re: Can measurement tool graphics be persisted?

ThomasSolow — Fri, 12 May 2017 19:46:45 GMT

My guess would be that you can listen to the 'measure-end' event on the dijit, which will give you access to the result of the measurement and a geometry.

From here, you could take that geometry and create your own graphic from it. You could use the measurement result (also from the measure-end event) as an attribute on that graphic. This graphic can then be added to a feature layer (probably a polyline feature layer) in order to persist it. You can add a label class to the feature service backing up that feature layer that looks at the attribute that represents the measurement result and applies it as a label.

Re: Can measurement tool graphics be persisted?

DaveSouthern — Fri, 12 May 2017 20:13:23 GMT

I was thinking something along those lines, but wanted to make sure I wasn't overlooking something.

Re: Can measurement tool graphics be persisted?

DaveSouthern — Mon, 15 May 2017 22:36:40 GMT

OK. So now I'm trying to find a javascript example of how to wire up the measure-end event. Can you point me to one?

Re: Can measurement tool graphics be persisted?

ThomasSolow — Tue, 16 May 2017 12:48:22 GMT

Here's a jsbin showing how to tap into the event: JS Bin - Collaborative JavaScript Debugging

Re: Can measurement tool graphics be persisted?

DaveSouthern — Tue, 16 May 2017 14:46:33 GMT

Thanks Thomas - I appreciate the help.