Can't display completely vertical lines in SceneViewer

Question

I published a feature class from Pro that consists of completely vertical lines (created from 2 points with same xy coords but one z value is the elevation, and the other z value is 0).  These display fine in a scene in ArcGIS Pro, but do NOT display in the SceneViewer in ArcGIS Online when I publish as a feature service.  I've done all the basic troubleshooting - it's z-enabled, symbology is correct, etc. etc.  I can't really check the visualization in the MapViewer for obvious reasons, but since it displayed correctly in Pro I figured it would work in Online.

Am I doing something wrong?

Alternatively I could use the ground-based xy points, and extrude to the altitude, but I can't figure out how to extrude a point by an altitude value in the SceneViewer - it adjusts the width of the 3d symbol, but not the height.

KhaledHassen · Answer

This is related to the data store accuracy we use which is around 11 or 12 mm.  I would try something a little bit higher.

MicZatorsky_AEC · Answer

How much offset is required for one point?   Is a millimeter enough?

KhaledHassen · Answer

Unfortunately we do not currently support vertical line in online feature service. The validation of geometry requires difference in x, y. This is a date store limitation. We will be working on supporting vertical line in future releases of online. The workaround is to create at least one point that has difference in x or y.

Thanks

Khaled Hassen

Online Feature Service Dev. Lead