topic Re: Arcade Expressions (ArcGIS Online) to display nearest ploygon Field Attribute in ArcGIS Online Questions

Arcade Expressions (ArcGIS Online) to display nearest ploygon Field Attribute

MohdZukhairiAbdLatef — Thu, 18 Jan 2024 10:35:49 GMT

Hello, I am trying to find nearest feature distance and display its attribute name through pop-ups using Arcade expression in the WebMap (Portal for ArcGIS).

I found below expression from the esri link;

How To: Display the Distance of the Nearest Point Feature Using an Arcade Expression in Po (esri.com)

I managed to configure pop-ups and display nearest distance, but I could not figure out how to display its attribute from the result of the nearest distance.

Below is my scenario:

Layer 1: BigArea (polygon) [with one field name called "HOUSING PROJECT NAME"]

Layer 2: Land Parcel (Polygon)

I want to display distance and HOUSING PROJECT NAME when I click to any Land Parcel layer. It could me adding another attribute field or using the same distance field.

My script I found and modified from ESRI as below:

var BigArea = FeatureSetByName($map,"BigArea");

var buf = Buffer($feature, 2000000, "meter");

var fs_filtered = Intersects(BigArea, buf);

var cnt = Count(fs_filtered);

var min_dist = 2000000;

if (cnt > 0) {

for (var f in fs_filtered) {

var dist = Distance($feature, f);

if (dist < min_dist) {

min_dist = dist;

}

return round(min_dist, 3);

Any suggestions are most welcome.

Regards

Zukh

Re: Arcade Expressions (ArcGIS Online) to display nearest ploygon Field Attribute

MikeMillerGIS — Thu, 18 Jan 2024 11:19:13 GMT

Dont call Count(), this causes an unnecessary query. Just loop over the results.

try this

Re: Arcade Expressions (ArcGIS Online) to display nearest ploygon Field Attribute

MohdZukhairiAbdLatef — Tue, 23 Jan 2024 12:59:05 GMT

It works! Thanks for sharing @MikeMillerGIS