topic Re: Curves in Pro Don't Show in ArcGIS Online in ArcGIS Online Questions

Curves in Pro Don't Show in ArcGIS Online

RobertAnderson3 — Wed, 28 Jun 2023 11:47:18 GMT

I noticed when looking at our data for centerlines in ArcGIS Online that segments that are created using the circular arc drawing tool in ArcGIS Pro does not render as curves and simply draw straight lines between the vertexes. On some Googling I seem to find information that hosted feature layers do not support curves?

Is this still the case? I see posts from a literally a decade ago discussing it being in the enhancement list. Is it still a limitation or a setting I'm missing?

Thanks!

EDIT: In further investigation of the data I see that bezier curves render properly in ArcGIS Online, it is only circular arcs that do not.

Re: Curves in Pro Don't Show in ArcGIS Online

TonyContreras_Frisco_TX — Tue, 27 Jun 2023 19:55:43 GMT

This article from 2020 says they are not supported, but the curve features should get converted to rings when publishing to AGO. If you can, it is recommended to publish your feature service to ArcGIS Server 10.3 or later since true curves are supported that way.

Re: Curves in Pro Don't Show in ArcGIS Online

RobertAnderson3 — Wed, 28 Jun 2023 11:08:42 GMT

Thank you for the info.

I notice it discusses polygons in that article, not polylines, and that is consistent with what I have seen, our polygon data seems fine, but the lines do not seem to convert to rings.

I guess I can look and see if there's a tool to convert the curves to rings in our data itself, unless there's a checkbox in publishing somewhere to us instead?

It's being published directly into ArcGIS Online as part of our OpenData portal so it's not being stored on ArcGIS Server.

Re: Curves in Pro Don't Show in ArcGIS Online

LauraHenry — Fri, 04 Aug 2023 00:30:16 GMT

Having the same issue with our features. Not sure what has happened because before updating our features recently, curved lines appeared as cured lines in AGOL. Now they are straight lines. What's up?

Re: Curves in Pro Don't Show in ArcGIS Online

KazemiDavood — Thu, 07 Sep 2023 07:06:37 GMT

Any updates on this issue

i have recently came across this issue I didn’t have before publishing new service

Re: Curves in Pro Don't Show in ArcGIS Online

RobertAnderson3 — Thu, 07 Sep 2023 11:01:39 GMT

@KazemiDavood @LauraHenry I contacted Esri Support and they connected me with two cases:

BUG-000157769: Appending specific data in ArcGIS Online with circular arcs in between vertices does not honor the circular arc and instead renders a straight segment in between vertices when using the Append Feature within ArcGIS Online This one was marked as "non-reproducible" yesterday and closed? Which I don't really understand, but I don't believe this is my specific issue anyways as we overwrite our layers.

ENH-000156468: Allow ArcGIS Online to support true curve features. This one still says "In Review" so hopefully it gets somewhere?

Re: Curves in Pro Don't Show in ArcGIS Online

OderMarcusWCED — Tue, 10 Oct 2023 20:07:06 GMT

Yikes - just noticed that something like 30K+ subdivision lot AutoCAD sourced true arcs work fine (even with reprojection) in ArcGIS Pro 3.1 and Enterprise REST Service pointing at SDE but are missing in AGOL Hosted Feature Service published from same data. Guess it's stroking time for AGOL Hosted destined data.

Re: Curves in Pro Don't Show in ArcGIS Online

BrantSollis2 — Fri, 20 Oct 2023 21:09:00 GMT

We are also seeing this issue show up recently. Layers that have alway shown and approximation of the true curve are now showing as straight segments or frequently missing segments in their entirety.

We have temporarily found a workaround by updating the the feature layer from a zipped geodatabase. After updating the straight or missing segments are back to curve approximations, but it requires us to essentially publish every layer twice, so I would not call that a solution.

Re: Curves in Pro Don't Show in ArcGIS Online

RobertAnderson3 — Tue, 31 Oct 2023 11:36:30 GMT

Just to post an update on this issue, I was in touch with Esri Support and while initially they said it was as expected, because true circular arcs do not, they are supposed to approximate the appearance by converting it to rings, it is a bug causing it to not do this now. The reply I got:

BUG-000160117 : Circular arcs in a feature layer with no z-values display as straight lines in ArcGIS Online.

It was introduced with the June 2023 update and the fix is planned for the October 2023 update (end of the month). Although ArcGIS Online does not technically support true curves, the expected behaviour is still that upon publishing, the true curves should be converted to rings with many vertices to appear as curves. The workaround for the bug is to export the data to a feature class with z-values enabled and then publish it to ArcGIS Online.

So hopefully this will be fixed shortly.

UPDATE OCT 31, 2023: As of the update on October 25th, it appears to be fixed.

Re: Curves in Pro Don't Show in ArcGIS Online

BrantSollis2 — Fri, 27 Oct 2023 16:45:04 GMT

Thanks for this update, Robert!

It looks like the ArcGIS Online update that pushed yesterday resolved this issue for us. I hope it solved the issues for you all as well!

Re: Curves in Pro Don't Show in ArcGIS Online

RobertAnderson3 — Tue, 31 Oct 2023 11:32:38 GMT

It looks like it has resolved it for us as well!

Re: Curves in Pro Don't Show in ArcGIS Online

LearnThenShare_JC — Tue, 22 Oct 2024 13:31:27 GMT

@RobertAnderson3 , @BrantSollis2 , @KazemiDavood Hello All, Can you all check to see if the issue is occurring again? We have a Hosted Feature service that we append new data to and the curves used to appear as curves, but now started appearing as straight line segments. We Append from file geodatabase in ArcPro 3.3 to ArcGIS Online Portal. Thanks!

Re: Curves in Pro Don't Show in ArcGIS Online

mthompson — Thu, 27 Feb 2025 12:56:34 GMT

Our parcels use true curves when we create them from COGO using the Traverse tool, and they look fine in ArcGIS Pro.

But in ArcGIS Online, they look like jagged edges. This could affect the various widgets that are selecting abutters and other features based on a buffer not to mention it just makes them look unprofessional.

Re: Curves in Pro Don't Show in ArcGIS Online

JoshBerna — Thu, 24 Apr 2025 17:38:18 GMT

Anybody else still seeing this issue in 2025?

Re: Curves in Pro Don't Show in ArcGIS Online

mthompson — Thu, 24 Apr 2025 17:58:58 GMT

Mine are still the same as the image above.

Re: Curves in Pro Don't Show in ArcGIS Online

JoshBerna — Thu, 24 Apr 2025 18:04:25 GMT

Glad I'm not the only one. I used the densify tool as a workaround and populated the curves with a bajillion vertices but they still look all jagged in AGOL. They look gorgeous in Pro, so im pretty peeved off.

Re: Curves in Pro Don't Show in ArcGIS Online

OderMarcusWCED — Thu, 24 Apr 2025 19:07:48 GMT

The "no z-value circular arcs display as straight line in AGOL" was fixed for us in October 2023 - though we had to republish our data (from SDE) over AGOL to have our arcs look like arcs. At that time I believe our circular arcs were stroked to linestrings as I believe circular arcs weren't yet implemented in AGOL. They do seem to implemented and preserved today however when creating new features. Ours are fairly small in radius (such as in city lot parcels) and are in a projected coordinate system and tests indicate they look fine - but rendering in a Web Map as polygons is extremely slow to catch up and generate the curves so they look like real curves. Polylines as curves seem to render much faster.

Re: Curves in Pro Don't Show in ArcGIS Online

JoshBerna — Thu, 24 Apr 2025 19:33:06 GMT

Wish I could say the same. Mine just come through as jagged lines -- no circular arcs about them. I wonder what the cause of this discrepancy is.

Re: Curves in Pro Don't Show in ArcGIS Online

mthompson — Wed, 04 Feb 2026 17:36:41 GMT

I tried publishing the layer again as a new layer (instead of overwriting an existing layer) to see if maybe it would get newer features and it did not help.