topic Features move 3 feet when shared to ArcGIS Online, does not retain original location in ArcGIS Online Questions

Features move 3 feet when shared to ArcGIS Online, does not retain original location

AlexanderLynch2 — Wed, 08 Dec 2021 14:40:12 GMT

I have a GDB set in local coordinate system on ArcGIS Pro map. I then shared map to ArcGIS online [reprojected to Spherical Mercator] and turn on feature editor tracking and sync. Next, I imported original GDB and ArcGIS Online Services URL to data warehouse [FME]. Manipulated coordinate system to match and compared geometry of same feature. It resulted with NW shift of 3 feet. When surveying centimeter-grade, this shift is unacceptable.

Is there a best practice to retain feature's original geometry when sharing to ArcGIS Online then back to GDB???

Image below:
ArcGIS Online Features -- brownish-red line and point
File GDB Features -- green line and point

Re: Features move 3 feet when shared to ArcGIS Online, does not retain original location

Anonymous User — Wed, 08 Dec 2021 21:49:42 GMT

Hi @AlexanderLynch2 thanks for this post. If I'm understanding this right, you're comparing the location of points from the following two workflows:

Published hosted feature layer from ArcGIS Pro
Original FGDB
- You're comparing the hosted feature layer published from Pro to the original FGDB and noticing the discrepancy of three feet.
- Is this right or am I misinterpreting/missing something here?

We would like to get this to a Support analyst to take a closer look at the data and workflow involved. Let me know and I can get a case going for you. In the meantime, would you be able to attach a zipped file geodatabase with some sample data?

Thanks,

-Peter

Re: Features move 3 feet when shared to ArcGIS Online, does not retain original location

AlexanderLynch2 — Fri, 10 Dec 2021 13:49:00 GMT

Yes. You are correct. But rather than publishing hosted feature layer, I share as a "web map". Even when comparing on ArcGIS Pro: Vertex x & y are not same.

Re: Features move 3 feet when shared to ArcGIS Online, does not retain original location

Anonymous User — Fri, 07 Jan 2022 00:27:20 GMT

Hi @AlexanderLynch2 - sorry for the delay in getting back to you on this. Thank you for including the sample data - I haven't been able to reproduce this issue. Please see my steps below and let me know what I need to alter to see the issue. Alternatively, I can get a Support case started for you and an analyst can test the workflow and data extensively.

Add layers from GDB to new map in ArcGIS Pro 2.9
Change projection of map to Web Mercator (layers projected on the fly from local projection to Web Mercator)
Publish web map from ArcGIS Pro
From Portal section in Catalog pane, open up the newly published hosted feature layer.
Add it to ArcGIS Pro and compare to the features in the File Geodatabase.
When viewing in Web Mercator or the File Geodatabase projection, the features are in the exact same place.

Thanks,

-Peter

Re: Features move 3 feet when shared to ArcGIS Online, does not retain original location

JohnJackman2 — Mon, 11 Sep 2023 15:25:42 GMT

Hi Alex

I am also finding the same issue with everything moving 3.3 ft. I also use share from ArcGIS Pro to web map. I share a map that is in Vermont State Planes and FT. When I export it is in WGS 84 and meters. All data collected using survey 123 Elevation is in meters and the old data is in ft.