topic Re: Arcade help with calculated value in Field Maps in ArcGIS Field Maps Questions

Arcade help with calculated value in Field Maps

peterverwey_ses — Tue, 25 Mar 2025 13:30:34 GMT

Hi all,

I am looking for some help with a calculated value in Field Maps. My very limited Arcade is letting me down and any help would be appreciated.

Background

Using Field Maps for Damage Assessment
Feature is DamageAssessment
Need to calculate IsHabitable field - values are Habitable, Not Habitable, and Not Applicable
Other factors are BuildingType and Damage

Form order sees the following:

Select BuildingType
- options are Residential and a range of other values
Select Damage
- options are None, Slight, Moderate, Severe and Destroyed
Calculate IsHabitable - this is where I need help

Rules:

For all BuildingType !== Residential, IsHabitable = Not Applicable
Where BuildingType == Residential
- Where Damage == Severe || Damage == Destroyed, IsHabitable = Not Habitable
- For all other Damage values, IsHabitable = Habitable

The form element for IsHabitable has conditional visibility for BuildingType == Residential

Questions:

What Arcade code can I use to calculate the result I need according to the above rules?
This is a required field. If I have conditional visibility, will the calculation run if the condition is not met, or do I need to set a default value in the templates with IsHabitable = Not Applicable?

The calculated value has conditional Editing allowed with a switch value so users can override the calculation.

Re: Arcade help with calculated value in Field Maps

AustinAverill — Tue, 25 Mar 2025 13:50:54 GMT

Here is an example. For this, I start with single conditions and return the function based on that. If it doesn't meet the logic of the if statement it passes to the next logic. Finally if all non-applicable or non-habitable conditions are passed, it return habitable.

//handles non-residential buildings and returns not applicable if($feature.BuildingType != 'Residential'){ return 'Not Applicable' }; //if it is "Residential" will check for damage and return val if($feature.Damaga == 'Severe' || $feature.Damage == 'Destroyed'){ return 'Not Habitable' }; //if the building is residential and the damage is not severe or destroyed will return this vallue return 'Habitable'

Re: Arcade help with calculated value in Field Maps

AustinAverill — Tue, 25 Mar 2025 13:51:34 GMT

Misspelled "Damage" on line 6 and didn't catch it until after hitting post. 😥

Re: Arcade help with calculated value in Field Maps

DougBrowning — Tue, 25 Mar 2025 15:31:31 GMT

I would write it more traditional like this. easier to follow.

if($feature.BuildingType != 'Residential'){ //handles non-residential buildings and returns not applicable return 'Not Applicable' } else if($feature.Damaga == 'Severe' || $feature.Damage == 'Destroyed'){ //if it is "Residential" will check for damage and return val return 'Not Habitable' } else { //if the building is residential and the damage is not severe or destroyed will return this vallue return 'Habitable' }

Re: Arcade help with calculated value in Field Maps

peterverwey_ses — Tue, 25 Mar 2025 15:31:58 GMT

@AustinAverill thank you so much for your help.

Turns out I was completely over-thinking everything.

Not only that, I was using string values for an integer based domain. The working code is listed below. Thank you again.

//handles non-residential buildings and returns not applicable

if($feature.Building_Type_General != 0) {

return 9

};

//if it is "Residential" will check for damage and return val

if($feature.Damage == 4 || $feature.Damage == 5) {

return 2

};

//if the building is residential and the damage is not severe or destroyed will return this value

return 1

Re: Arcade help with calculated value in Field Maps

peterverwey_ses — Tue, 25 Mar 2025 15:33:33 GMT

@DougBrowning thank you. This is how I would think as well.

Re: Arcade help with calculated value in Field Maps

AustinAverill — Tue, 25 Mar 2025 17:06:37 GMT

Adding the "else if" as statements is definitely probably more technically sound and has a better readable flow. I just didn't do it in my example to really flesh out each logic check as it's own entity for the sake of understanding how the code executes.

Re: Arcade help with calculated value in Field Maps

AustinAverill — Tue, 25 Mar 2025 17:07:51 GMT

Ahh, yes. Forgetting something is on a integer coded domain will be a hinderance every time! 😂