https://community.esri.com/t5/arcgis-pro-questions/batch-raster-math-multiple-tiles/m-p/1184483#M56374 <P>Hi all, I have two separate folders; one with DEMs and one with DSMs. They cover the same area and share the same tiling indexing convention, i.e. one is DEM_tile_A_01 and its equivalent is DSM_tile_A_01; this is reflected in the filename. Is there a way to use model builder to iteratively cycle through all of these, subtracting the DEM from the DSM based on their matching filenames? I haven't been able to work out how to iterate from different workspaces and use the minus tool based on matching filenames. I have around 1,000 to get through. Thanks in advance for any help.&nbsp;</P> Mon, 20 Jun 2022 21:19:16 GMT J_Miller_NZ 2022-06-20T21:19:16Z https://community.esri.com/t5/arcgis-pro-questions/batch-raster-math-multiple-tiles/m-p/1184483#M56374 <P>Hi all, I have two separate folders; one with DEMs and one with DSMs. They cover the same area and share the same tiling indexing convention, i.e. one is DEM_tile_A_01 and its equivalent is DSM_tile_A_01; this is reflected in the filename. Is there a way to use model builder to iteratively cycle through all of these, subtracting the DEM from the DSM based on their matching filenames? I haven't been able to work out how to iterate from different workspaces and use the minus tool based on matching filenames. I have around 1,000 to get through. Thanks in advance for any help.&nbsp;</P> Mon, 20 Jun 2022 21:19:16 GMT https://community.esri.com/t5/arcgis-pro-questions/batch-raster-math-multiple-tiles/m-p/1184483#M56374 J_Miller_NZ 2022-06-20T21:19:16Z