Stacking Labels of Multiple Features

Question

Is there a way to display labels in the same label class but different features as stacked? I have two polylines with identical geometry but have different values. Is there a way to display their labels as a stack instead of side by side?

Jesse Wickizer · Answer

Allowing the line labels to be placed above or below the line could help with situations where there are only 2 overlapping features. Set the Constrain offset parameter to No constraint to allow this.

The result can look like this:

Keep in mind other labels and weighted features on the map will influence label positions so the labels aren't guaranteed to align nicely like this.

Robert LeClair · Answer

So I found a way to do this using old school VBScript! I'm sure there's a way to do this with Arcade but I've been struggling with that. The syntax to copy/paste into the Expression box of the Label Class pane is: Dim counter counter = 0 Function FindLabel ([Label]) If Left([Label], 3) = "BFO" Then counter = counter + 1 If counter Mod 2 = 1 Then FindLabel = "^{" & [Label] & "}" Else FindLabel = "_{" & [Label] & "}" End If Else FindLabel = [Label] ' If it doesn't start with "BFO", return the original label End If End Function The result can be seen below. One thing I had to change to make it work properly was on the Position tab in the Label Class pane, set the Label Buffer to 0%. Then it stacks properly.

MasonFord · Answer

I was able to post it to ArcGIS Online and share it.

https://vps.maps.arcgis.com/sharing/rest/content/items/b0f156276d2a4dd1ad49b9e58a5686f7/data

So I have two polylines in the same feature class with identical geometry. Both labels are part of the same label class. They both have different names (BFO 48RI & BFO 288RI). The labels are displayed side by side and I would like them stacked one on top of the other.  When I try to use stacking separators I end up with the BFO above the numbers but they are still side by side.