topic Re: Field Maps calculate acres of new feature in ArcGIS Field Maps Questions

Field Maps calculate acres of new feature

MacLeanR — Thu, 04 Aug 2022 17:19:35 GMT

Is it possible to return the area of a new feature in acres to a field as the feature is being created? I've been trying to accomplish this with:

return round(AreaGeodetic($feature, 'acres'),2)

It doesn't return anything on feature creation or editing of an existing feature. Thanks for any help!

-Rich

Re: Field Maps calculate acres of new feature

JohannesLindner — Fri, 05 Aug 2022 07:53:15 GMT

Is your data in the right coordinate system? From AreaGeodetic:

Support is limited to geometries with a Web Mercator (wkid 3857) or a WGS 84 (wkid 4326) spatial reference.

Does it work if you use Area instead?

Re: Field Maps calculate acres of new feature

MacLeanR — Mon, 08 Aug 2022 10:39:58 GMT

The data is in WGS 84. Using Area had the same results.

Re: Field Maps calculate acres of new feature

RhettZufelt — Fri, 12 Aug 2022 15:22:22 GMT

Interesting. Tried to test with round(Area($feature, 'acres'),2) and is working, BUT, only if I add the vertices correctly. If I create a polygon in a counter clockwise direction, the area reports as negative, if I add points in clockwise direction, they are positive units. ??????