Define source raster in mosaic dataset

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10-13-2016 05:08 AM
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New Contributor III

I have a problem with source rasters in my mosaic dataset which is updated by python script.

I've noticed that some older mosaic records lost reference to source rasters and the Raster field is empty:

When I click in Raster column, empty properties are displayed.

I've already checked with Repair tool if the data sources are correct - rasters are in the same place and I can access folder with UNC path.

I've also run Analyze Mosaic Dataset and got already known error: The RASTER field of the mosaic dataset item is empty.

The suggested solution is running Synchronize Mosic Dataset tool. When I run it, it says: "0 items synchronized", no matter what I select with options.

Is there any other way to reconnect source rasters to mosaic?

If there's no automatic way to update raster - how to do this manually. Is it possible to update source of the raster just like source of layer?

Mosaic resides in file geodatabase, version 10.3.1.

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Occasional Contributor III

Have you tried analysing the Dataset? and see what errors come up by checking the "source_validity", see image below:

Baba

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New Contributor III

Yes. I've already analyzed the mosaic with this option selected. And I got the error: "The RASTER field of the mosaic dataset item is empty."

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Occasional Contributor III

I don't know how you build your "Mosaic Dataset" using ArcPy but if you can identify those "Rasters" causing error then right click on them (each one) and check the raster property > Functions > RasterInfo Function (Right click on the image) > Properties, and see what the Data Source says. See Image below:

Baba

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New Contributor III

I can't access raster properties at all, because the reference is totally lost:

In ArcCatalog application when I click Properties, I get error: "Failed to Open Dataset".

And I don't see any other way to access properties of individual raster within mosaic.

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Occasional Contributor III

Can I see a screenshot of the tool you used in your arcpy? cos I only ran my mosaic dataset once and whenever I want to update or add I simple add the rasters to the "origin" folder and do a synchronisation. except you are using a "Referenced" Mosaic rather than Mosaic Dataset?

Baba

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MVP Esteemed Contributor

This may be too obvious Repairing paths in a mosaic dataset—Help | ArcGIS for Desktop 

but I will throw it out anyway.

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Regular Contributor II

You Can try to use Export Mosaic Dataset Paths—Help | ArcGIS for Desktop  to create a table with all paths. You will have to check what you get for the problem rasters but it should help to identify them.

I do not know a way to fix paths in Python. It should be easy to remove the bad rasters and add them again using Python. You must check that the overviews are still ok.

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New Contributor III

This didn't help. The exported table didn't contain raster paths where Raster field was empty.

Eventually I took last working backup, added all new images and copied all custom attributes from the current mosaic.

Thank all of you for the interest.

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