Arcade-Difference between Buffer Distance and Actual Route Distance

Pa_Lotus — Sat, 11 Dec 2021 08:40:02 GMT

I used the similar code in arcade to find the nearest address point(Using Arcade to Find the Nearest Address Point )

My question is does the distance calculated by buffer and route service are same or almost same

or is it possible to find nearest distance from $feature to address

var searchDist = 200;
var addresses = Intersects(FeatureSetById($map, "Primary_Address_3482"), Buffer( $feature, searchDist, "feet"));
var cnt = Count(addresses)
Console("Total Number of addresses within buffer: " + cnt);
var nearestaddress;
var min_dist = 250;
for (var f in addresses){
 var addressDist = Round(Distance(f, $feature, "feet"),2);
 if (addressDist < min_dist) {
     nearestaddress = f.FULL_ADDR;
     min_dist = addressDist;
 }
 Console(f.FULL_ADDR + ": " + " " + addressDist);
}

return nearestaddress;‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Xander Bakker‌

Thanks

Re: Arcade-Difference between Buffer Distance and Actual Route Distance

XanderBakker — Sat, 23 May 2020 20:24:19 GMT

Hi MR Reddy ,

There are a couple of things to keep in mind:

When working with a geometry in Arcade derived from $feature the precision depends on the view scale. When you are zoomed out your geometry will be generalized (this will be more the case with lines and polygons).
Using the Distance or DistanceGeodetic functions in arcade will return the distance in a straight line which will normally be less than when you determine the distance using routing.
Currently you cannot invoke a service (for instance a routing service) te determine the distance based on routing. However, this is something that might be introduced later on.
When you look for addresses within a distance of 200 feet, I assume the distance resulted from routing will not be very larger than the one returned from a straight line in many situations.

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Arcade-Difference between Buffer Distance and Actual Route Distance

Re: Arcade-Difference between Buffer Distance and Actual Route Distance