I am really new in Python programming. I try to make a loop for Extract by Attributes tool in ArcGIS 10.1. I have a huge dataset of raster (760pc) and I want to extract a specific value. This part of script runs fine. But ArcGIS in this function can only produce a GRID format with 13 characters so it changes my original names (.img file).
How can I keep the original names of rasters from my datasets?
Maybe I have to produce a list of results and convert them to .img file?
When I did it, it has kept the new generated GRID name (Extract_1), not my original name.
Anyone can help?
# Name: ExtractByAttributes_Ex_02.py # Description: Extracts the cells of a raster based on a logical query. # Requirements: Spatial Analyst Extension # Import system modules import arcpy from arcpy import env from arcpy.sa import * # Set environment settings env.workspace = r"d:\UEL\Data\poskod_cez_VI_2\ch_msi_vci" # Set local variables inRaster = "ch_n_msi_00_02_10.img" inSQLClause = "VALUE = 5" outFolder = r"d:\UEL\Data\poskod_cez_VI_2\export_values" #Allows overwriting arcpy.env.overwriteOutput = True # Check out the ArcGIS Spatial Analyst extension license arcpy.CheckOutExtension("Spatial") # Get a list of the rasters in the workspace rasters = arcpy.ListRasters() # Loop through the list of rasters for inRaster in rasters: # Set the outputname for each output to be the same as the input outRaster = outFolder + "\\" + inRaster # Process: Extract by Mask attExtract = ExtractByAttributes(inRaster, inSQLClause) # Save the output attExtract.save(r"d:\UEL\Data\poskod_cez_VI_2\export_values")