Square Root (Image Analyst)

Available with Spatial Analyst license.

Summary

Calculates the square root of the cell values in a raster.

Illustration

OutRas = SquareRoot(InRas1)

Usage

• Input values that are less than 0 will be NoData in the output raster.

• The output raster from this tool is always floating-point type, regardless of the input value type.

• If the input is a multiband raster, the output will be a multiband raster. The tool will perform the operation on each band in the input.

• If the input is multidimensional raster data, all slices from all variables will be processed. The output will be a multidimensional raster in CRF format.

Parameters

Dialog

Label	Explanation	Data Type
Input raster or constant value	The input values to find the square root of. To use a number as an input for this parameter, the cell size and extent must first be set in the environment.	Raster Layer; Constant

Return Value

Label	Explanation	Data Type
Output raster	The output raster. The cell values are the square root of the input cell values.	Raster

Python

SquareRoot(in_raster_or_constant)

Name	Explanation	Data Type
in_raster_or_constant	The input values to find the square root of. To use a number as an input for this parameter, the cell size and extent must first be set in the environment.	Raster Layer; Constant

Return Value

Name	Explanation	Data Type
out_raster	The output raster. The cell values are the square root of the input cell values.	Raster

Code sample

SquareRoot example 1 (Python window)

This example finds the square root of the values in the input Grid raster and generates the output as an IMG raster.

import arcpy
from arcpy import env
from arcpy.ia import *
env.workspace = "C:/iapyexamples/data"
outSquareRoot = SquareRoot("elevation")
outSquareRoot.save("C:/iapyexamples/output/outsqrt.img")

SquareRoot example 2 (stand-alone script)

This example finds the square root of the values in the input Grid raster.

# Name: SquareRoot_Ex_02.py
# Description: Calculates the square root of the pixels in a raster
# Requirements: Image Analyst Extension

# Import system modules
import arcpy
from arcpy import env
from arcpy.ia import *

# Set environment settings
env.workspace = "C:/iapyexamples/data"

# Set local variables
inRaster = "elevation"

# Check out the ArcGIS Image Analyst extension license
arcpy.CheckOutExtension("ImageAnalyst")

# Execute SquareRoot
outSQRT = SquareRoot(inRaster)

# Save the output 
outSQRT.save("C:/iapyexamples/output/outsqrt")

Environments

Auto Commit, Cell Size, Cell Size Projection Method, Current Workspace, Extent, Geographic Transformations, Mask, Output CONFIG Keyword, Output Coordinate System, Scratch Workspace, Snap Raster, Tile Size