ArcGIS Online not displaying curves correctly

tmichael_wpjwa

In our water network data we use "loops" in lines to display areas where pipes overlap but do not intersect. We noticed yesterday that in ArcGIS Online (Experience Builder and Field Maps) that the curves are drawing with much less detail.

This is what they look like in ArcGIS Pro:

And this is what they look like in ArcGIS Online:

I checked the settings of the layer and confirmed that we are not using the "Optimize layers" setting to increase drawing speed. For reference, the layers in ArcGIS Pro are coming from our enterprise geodatabase via services from ArcGIS Enterprise, and the data is published to a hosted feature layer in ArcGIS Online.

AnnWang

Hi - This is Ann Wang from ArcGIS Online hosted feature services team. ArcGIS Online only supports curves on the backend so it is as designed that the curves will be densified on Map Viewer. This case is on a tiny scale so the drawing loses its detail. However, your data should be untouched and kept as curves as they should be. Please let me know if you have other questions!

tmichael_wpjwa

My question would be - how do we go about making the curves display correctly? For the last ~8 years that we've used ArcGIS Online the curves have always displayed correctly in all of our web maps; the change to a less-detailed view was just noticed this week. Is there something that can be done in the web map or layer settings that would make them draw correctly again?

kennedy

Hi,

I'm seeing posts from 2023 saying AGOL should approximate the curves. It wasn't working for some and it was a bug back in 2023. I have been painstakingly drawing parking lots, sidewalks and roads with many curves and now when published to AGOL, the roads/sidewalks overlap in places because of the straight segments. See the green/gray overlap in image. What's worse is the light brown pedestrian bridge that goes over a road shows completely disjointed and messed up.

AnnWang

Hi Kennedy - Do you mean that curves for road and bridge are the same but displayed differently on Map Viewer (the green/gray overlap in the image)? If so, please attach the data here so we can take a look. Thanks!