topic Re: Define/Build Overviews with ArcPy in ArcGIS Pro Questions

Define/Build Overviews with ArcPy

IceCreamBean — Tue, 14 Jun 2022 06:54:59 GMT

Using ArcPro 2.9 I can Define and Build Overviews using all the default settings successfully (output is TIF overviews), but trying the same in a script using Arcpy with the default ArcPro environment the TIF overviews are consistently blank no matter what I try. That is, the actual TIF files themselves are mostly empty (only a few kilobytes each) and although they are in the mosaic dataset table, they do not draw at all.

Is this a known bug? Even when copying the python output from ArcPro it will not work in a standalone script.

Re: Define/Build Overviews with ArcPy

DanPatterson — Tue, 14 Jun 2022 10:10:07 GMT

Build Overviews (Data Management)—ArcGIS Pro | Documentation

You are using that? T

Definition Query perhaps?

BUG-000103572: Overviews are not generated for a mosaic dataset whe.. (esri.com)

Bug BUG-000103572
Synopsis
Overviews are not generated for a mosaic dataset when running the Build Overviews tool with a definition query in ArcGIS Pro.

Re: Define/Build Overviews with ArcPy

IceCreamBean — Tue, 14 Jun 2022 22:56:34 GMT

Hi Dan, thanks for the reply. There is no definition query.

The command is as follows:

arcpy.DefineOverviews_management(mosaic_dataset, overview_dir)
arcpy.BuildOverviews_management(mosaic_dataset)

Re: Define/Build Overviews with ArcPy

DanPatterson — Tue, 14 Jun 2022 23:55:13 GMT

Don't know, but this appears in the help topic

You cannot build overviews for a referenced mosaic dataset.

If you think it is a bug, then I would flag it to tech support. At least they can track down why your process is failing.

Re: Define/Build Overviews with ArcPy

IceCreamBean — Wed, 15 Jun 2022 06:04:37 GMT

Hi Dan, thanks for the reply. Not using a reference. I'll look into tech support.