topic Re: How to smooth polygon lines? in ArcGIS Online Questions

How to smooth polygon lines?

DaveK — Wed, 23 Aug 2023 17:55:35 GMT

Hello,

I have a hosted polygon layer of parcel boundaries in AGO. I added the polygon layer to both a scene and a webmap (classic). In both cases (more sever in the scene) the polygon boundaries appear jagged. Is there any way to smooth these lines?

Image of polygons in scene:

Polygons in webmap (classic)

Any help is appreciated.

Thanks.

Re: How to smooth polygon lines?

jcarlson — Wed, 23 Aug 2023 18:00:55 GMT

Are you pulling those into your maps using the MapService layer or the FeatureService?

Re: How to smooth polygon lines?

DaveK — Wed, 23 Aug 2023 18:11:21 GMT

This is coming in as a feature service.

Re: How to smooth polygon lines?

jcarlson — Wed, 23 Aug 2023 18:22:50 GMT

Strange! I don't use the scene viewer much, but I know it caches tiles differently. As for the map viewer, does it look any better in the new map viewer?

Re: How to smooth polygon lines?

DaveK — Wed, 23 Aug 2023 18:38:11 GMT

It's MUCH nicer in the new map viewer, good to know.

Re: How to smooth polygon lines?

AndreasUlmer — Fri, 25 Aug 2023 13:15:01 GMT

In SceneViewer, can you check the quality settings? Having the slider on quality could help.

However the screenshot of SceneViewer looks definitely worse than it should be. Is it possible to share the webscene, or the layer so we can have a closer look?

Re: How to smooth polygon lines?

AndreasUlmer — Thu, 23 Nov 2023 19:22:28 GMT

Identified as bug / regression in 3D SceneView (missing antialiasing). Fixed, lines are smooth again.
Will be shipped with next ArcGIS Online release, Feb 2024.