topic Arcade Expressions for Symbology in ArcGIS Pro Questions

Arcade Expressions for Symbology

BrianE — Tue, 30 Jun 2020 13:05:44 GMT

I am just starting to play around with Arcade Expressions and am having some issues using an expression to symbolize a multipatch layer.

The layer is building floor numbers (e.g., 1,2,3,4,5,6….) and is a numeric field in Pro.

I am using this expression and it works for only 1 floor:

if ($feature.FLR_NUM == 20) return true

However, I can’t figure it out the correct expression for multiple floors (e.g., I want only floor numbers 10, 13, 20, and 23 to be a color). I am getting error messages (close parenthesis expected). Or “requested operation could not be completed” even though the expression is valid.

Any help would be greatly appreciated.

Thanks

Re: Arcade Expressions for Symbology

XanderBakker — Sun, 12 Dec 2021 04:41:28 GMT

Hi Brian E ,

You could use something like this:

 var floors = [10, 13, 20, 23];
 if (IndexOf(floors, $feature.FLR_NUM) > -1) {
     return "Floor 10, 13, 20 or 23";
 } else {
     return "Other floors";
 }‍‍‍‍‍‍

We start with an array with the floors you are looking for (on line 1). Then we use the IndexOf function to see if the features floor is part of that list and return a text to symbolize on.

Re: Arcade Expressions for Symbology

BrianE — Tue, 30 Jun 2020 13:29:27 GMT

Xander,

That worked. Thanks so much!