Build Raster Attribute Table (Data Management)

Summary

Adds a raster attribute table to a raster dataset or updates an existing one.

Usage

• If you want to delete an existing table and create a new one, check Overwrite. A new raster attribute table will be created, and the old one will be deleted.

• If you have an existing table and you do not check Overwrite, the table will be updated. No fields will be deleted, but the values in the table will be up to date.

• It is not possible to build a raster attribute table for a raster dataset that is a pixel type of 32-bit floating point.

Syntax

BuildRasterAttributeTable_management (in_raster, {overwrite})

Parameter	Explanation	Data Type
in_raster	The input raster dataset. This must be a raster dataset with only a single band. It is not possible to build a raster attribute table for a raster dataset that has a pixel type of floating point or double precision.	Raster Layer
overwrite (Optional)	This allows you to overwrite any existing raster attribute table that might exist. NONE —Existing raster attribute tables will not be overwritten, and any edits will be appended to the current table. This is the default. OVERWRITE —Delete the existing raster attribute tables and create a new raster attribute table.	Boolean

Code Sample

BuildRasterAttributeTable example (Python window)

This is a Python sample for BuildRasterAttributeTable.

import arcpy
arcpy.BuildRasterAttributeTable_management("c:/data/image.tif", "Overwrite")

BuildRasterAttributeTable example 2 (stand-alone script)

This is a Python script sample for BuildRasterAttributeTable.

##====================================
##Build Raster Attribute Table
##Usage: BuildRasterAttributeTable_management in_raster {NONE | Overwrite}
    
try:
    import arcpy
    arcpy.env.workspace = r"C:/Workspace"
    
    ##Build attribute table for single band raster dataset
    ##Overwrite the existing attribute table file
    arcpy.BuildRasterAttributeTable_management("image.tif", "Overwrite")

except:
    print "Build Raster Attribute Table example failed."
    print arcpy.GetMessages()

Environments

Current Workspace

Licensing Information

ArcView: Yes

ArcEditor: Yes

ArcInfo: Yes