topic Re: JavaScript API - how to get the map units? in ArcGIS JavaScript Maps SDK Questions

JavaScript API - how to get the map units?

TomSellsted — Tue, 03 Mar 2015 22:23:17 GMT

Greetings,

I have been looking for a method or property that will give me the units (IE: meters, feet, degrees) of the map being displayed. I have looked at the map.spatialReference.toJson(), but it only returns the WKID and not the units. Any suggestions of how to get this property? It would certainly be ideal to have a property map.mapUnits or a method map.getMapUnits(). Thanks!

Regards,

Tom

Re: JavaScript API - how to get the map units?

OwenEarley — Tue, 03 Mar 2015 22:34:40 GMT

Hi Tom - a very similar question was asked recently: Re: How to get linear distance units of a layer?

In short, the SpatialReference class does not contain a property for linear units.

Re: JavaScript API - how to get the map units?

TomSellsted — Tue, 03 Mar 2015 23:00:32 GMT

Owen,

Thanks for the reply.

Regards,

Tom

Re: JavaScript API - how to get the map units?

RobertScheitlin__GISP — Sat, 07 Mar 2015 14:21:59 GMT

Tom, Owen,

They have added getUnitValueForSR(sr) ability in 3.13

esri/geometry/scaleUtils | API Reference | ArcGIS API for JavaScript

Re: JavaScript API - how to get the map units?

TomSellsted — Sat, 07 Mar 2015 15:47:27 GMT

Robert,

That is excellent news! I will have to change my settings interface after the next release, but it will be worth it! Thanks very much!

Regards,

Tom Sellsted

Supervising Senior Analyst

Tom.Sellsted@YakimaWA.gov<mailto:Tom.Sellsted@YakimaWA.gov>

129 North 2nd Street, Yakima, WA 98901<x-apple-data-detectors://2/1>

Phone (509) 576-6602<tel:(509)%20576-6602> | FAX (509) 249-6835<tel:(509)%20249-6835>

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Re: JavaScript API - how to get the map units?

OwenEarley — Sun, 08 Mar 2015 20:55:51 GMT

This is good news - the client side Geometry Engine looks great too:

ArcGIS API for JavaScript version 3.13 | ArcGIS Blog

Re: JavaScript API - how to get the map units?

RobertScheitlin__GISP — Mon, 09 Mar 2015 00:57:01 GMT

Owen,

Ya, I have played with the geometryEngineAsync already and it is a nice addition.