format MEM? can not save temporary raster? RuntimeError: ERROR 010240:

Question

I am working with a large number of temporary rasters.  Individually they can be saved simply and without issue liker1.save(outloc)

However, if they are combined in any way -e.g.x = r1 + r2

and the result savedx.save(outloc)

I receive the following error
"RuntimeError: ERROR 010240: Could not save raster dataset to in_memory	imes_ras1 with output format MEM."

If I save -all- the temporary rasters before they are combined the final rasters save without issue.

Any thoughts?

RustyRex · Answer

I have this same problem.  Lots of rasters using in_memory.  I have even used arcpy.Delete_management to remove them when i am done, but I still get this error.

4andy · Answer

I originally had the env.workspace set to "in_memory" to speed up processing.

After changing it to a physical location the script seems to work without issue.

I am still unclear as to what the issue is however.  The same general function sequence has worked fine for me in other contexts.

Thanks.

rzufelt · Answer

I am working with a large number of temporary rasters. Individually they can be saved simply and without issue like  r1.save(outloc)

However, if they are combined in any way -e.g.  x = Raster(r1) + Raster(r2)

and the result saved  x.save(outloc)

I receive the following error  
"RuntimeError: ERROR 010240: Could not save raster dataset to in_memory	imes_ras1 with output format MEM."

If I save -all- the temporary rasters before they are combined the final rasters save without issue.

Any thoughts?

What does print outloc give you?

Might try the change in red and see if that fixes it for you. (documentation is unclear, you might need arcpy.env.workspace set an use quotes around r1 and r2. You will have to test.

R_
http://resources.arcgis.com/en/help/main/10.1/index.html#//018z00000051000000