Iterating extract by mask in ArcPy for 73 different masks and 21 different input rasters that don't all interconnect

MaraNutt — Wed, 19 Apr 2023 23:39:35 GMT

Hello,

I am using ArcGIS Pro 10.8.1 on a PC. I am struggling to be able to extract 21 .tif raster files that need to be extracted using 73 different .tif raster masks, making for quite a few output .tif files all with unique names.

I would like the name the output files in the following way: mask_name_input_name. Not all of the input rasters cross all the mask rasters, and so I think a for loop needs to be in the code somewhere, I'm just not sure where. I can email anyone who wants the exact files.
I think part of the issue for me is that I'm not sure how the os.path.join works in conjunction with the ListRaster function. Do I need to specify something in either of those?

Not all input rasters cross the mask rasters, which makes it slightly different (I think?) from this example from this community page: https://community.esri.com/t5/arcgis-pro-questions/possible-to-iterate-both-input-raster-and-mask-in/m-p/1070217#M42215 that I tried but kept coming up with this error:

TypeError                                 Traceback (most recent call last)
In  [14]:
Line 12:    in_rasters = [os.path.join(inras_ws, raster) for raster in arcpy.ListRasters()]

TypeError: 'NoneType' object is not iterable
---------------------------------------------------------------------------

Thank-you in advance!
Mara

Re: Iterating extract by mask in ArcPy for 73 different masks and 21 different input rasters that don't all interconnect

DavidPike — Thu, 20 Apr 2023 16:21:35 GMT

Think you have to set your Workspace for ListRasters(). At the moment it's probably returning nothing.

topic Re: Iterating extract by mask in ArcPy for 73 different masks and 21 different input rasters that don't all interconnect in ArcGIS Pro Questions

Iterating extract by mask in ArcPy for 73 different masks and 21 different input rasters that don't all interconnect

Re: Iterating extract by mask in ArcPy for 73 different masks and 21 different input rasters that don't all interconnect