Edit Raster Function (Data Management)

Summary

Adds, replaces, or removes a function chain in a mosaic dataset or a raster layer that contains a raster function.

Usage

• To apply the rft.xml to items in a mosaic dataset, you must select the items in the attribute table or define a query using the Make Mosaic Layer tool.

• Database fragmentation and frequent data manipulation can dramatically increase the size of your mosaic dataset. If your database size is inflated due to constant transactions, run the Compact tool.

Syntax

arcpy.management.EditRasterFunction(in_mosaic_dataset, {edit_mosaic_dataset_item}, {edit_options}, {function_chain_definition}, {location_function_name})

Parameter	Explanation	Data Type
in_mosaic_dataset	The mosaic dataset or a raster layer. If you use a raster layer, it must have a function applied.	Mosaic Layer; Raster Layer
edit_mosaic_dataset_item (Optional)	Determines if edits affect functions or the entire mosaic dataset. EDIT_MOSAIC_DATASET —Edits affect the functions associated with the mosaic dataset. This is the default. EDIT_MOSAIC_DATASET_ITEM —Edits affect the functions associated with all of the items within the mosaic dataset.	Boolean
edit_options (Optional)	Insert, replace, or remove a function chain. INSERT —Insert the function chain above the Function Name of the existing chain. Specify the function chain in the location_function_name parameter. This is the default. REPLACE —Replace the existing function chain with the function chain specified in this tool. Specify the function chain below in the location_function_name parameter. REMOVE — Remove the function chain starting from the function specified in the location_function_name parameter.	String
function_chain_definition (Optional)	Choose the function chain (rft.xml file) that you want to insert or replace.	File
location_function_name (Optional)	Choose where to insert, replace, or remove the function chain within the existing function chain.	String

Derived Output

Name	Explanation	Data Type
out_raster	The updated mosaic dataset.	Mosaic Layer; Raster Layer

Code sample

EditRasterFunction example 1 (Python window)

This is a Python sample for EditRasterFunction.

import arcpy
arcpy.EditRasterFunction_management(
     "C:/Workspace/editfunction.gdb/md", "EDIT_MOSAIC_DATASET", 
     "INSERT", "C:/workspace/hillshade.rft.xml", "Stretch Function")

EditRasterFunction example 2 (stand-alone script)

This is a Python script sample for EditRasterFunction.

#Add raster function on top of mosaic dataset

import arcpy
arcpy.env.workspace = "C:/Workspace"

mdname = "editfunction.gdb/md"
editmode = "EDIT_MOSAIC_DATASET"
editmethod = "INSERT"
funcfile = "C:/workspace/hillshade.rft.xml"
funcname = "#"

arcpy.EditRasterFunction_management(mdname, editmode, editmethod, 
                                    funcfile, funcname)

Environments

Current Workspace, Scratch Workspace

Licensing information

• Basic: No
• Standard: Yes
• Advanced: Yes