HOW TO

Automate the export of rasters from a geodatabase raster catalog

Last Published: September 2, 2021

Summary

GIS managers and administrators sometimes need to automate the process of exporting rasters from geodatabase raster catalogs to raster datasets on disk. Instructions provided describe how to do this.

Procedure

The below Python script demonstrates how to automate the export of raster datasets from a geodatabase raster catalog to a raster dataset on disk. The background value is also set to zero in the below script.
Modify the parameters below according to the environment:
workspace = r"Database Connections\lclinton2_SQL08_R2.sde\sde101.SDE.Prasanta"
outras = r"C:\Data\outrasters"
Code:
import arcpy, os, string

def ExtractRasterFromRC(workspace,outras):
    
    count = arcpy.GetCount_management(workspace)
    str_cnt = str(count)
    int_cnt = int(str_cnt)
      
    cnt = 1
    while cnt <= int_cnt:
        raster = workspace + os.sep + "Raster.OBJECTID=" + str(cnt)
        name = "tiff_" + str(cnt) + ".tif"
        name_out = outras + os.sep + name
        print ("Reading {0}".format(raster))
        arcpy.CopyRaster_management(raster,name_out,"DEFAULTS","0","0","","","8_BIT_UNSIGNED")
        print ("Copied {0}".format(name_out))
        cnt += 1
    

if __name__=="__main__":
    workspace = r"Database Connections\lclinton2_SQL08_R2.sde\sde101.SDE.Prasanta"
    outras = r"C:\Data\outrasters"
    ExtractRasterFromRC(workspace,outras)

Article ID: 000011753

Software:
  • ArcMap 10 6
  • ArcGIS Pro 2 8 x
  • ArcGIS Pro 2 7 x
  • ArcMap 10 x
  • ArcMap 10 7
  • ArcGIS Pro 2 x
  • ArcMap 10 8

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