topic Re: Arcade Area expression trouble in ArcGIS Online Questions

Arcade Area expression trouble

LexiPassaro — Wed, 28 Dec 2022 18:02:19 GMT

I am new to Arcade. I've read everything I can find, but still can't quite get the AreaGeodetic function to work on this one. I am trying to measure the area in acres of the polygons on an ArcGIS online map, and add that to the pop up.

Here is what I'm working with:

When I use the AreaGeodetic Function as ($feature, 'acre'), it returns a result of 0. I'm certain I'm missing something silly. I tried it in other maps and it works.

This is what the Configure pop ups looks like for the polygons:

Thank you.

Re: Arcade Area expression trouble

MarkBockenhauer — Wed, 28 Dec 2022 18:55:03 GMT

Adding an expression like this one should work.

return round(areaGeodetic($feature, 'acres'),2)+' '+ 'acres'

Re: Arcade Area expression trouble

LexiPassaro — Thu, 29 Dec 2022 00:48:43 GMT

Thank you, however it still returns 0. Here is a screen shot of the test:

Re: Arcade Area expression trouble

MarkBockenhauer — Thu, 29 Dec 2022 16:34:23 GMT

Try it with a polygon feature in your map, that you know has an area. The %feature test result is for the feature with OBJECTID 1 (or lowest), is there a chance your OBJECTID 1 polygon feature is not a good one?

Re: Arcade Area expression trouble

LexiPassaro — Mon, 02 Jan 2023 20:53:58 GMT

Hello - Thank you. That must be it. It does work with other polygon features, but not this one. Is there a way to fix that? I'm happy to read/watch a tutorial if you know of one.

It's only four polygons, so I guess it's an option to manually "trace" what's there using sketch layer...