Float (Spatial Analyst)

Available with Spatial Analyst license.

Available with Image Analyst license.

Available with 3D Analyst license.

Summary

Converts each cell value of a raster into a floating-point representation.

Illustration

OutRas = Float (InRas1)

Usage

• The input values can be positive or negative.

• If you execute Float on an input that is already floating point, the output values will remain the same as the input values.

• 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.

• In ArcPy, if the input is a multidimensional raster, all slices from all variables will be processed, and the output will be a multidimensional raster.

• See Analysis environments and Spatial Analyst for additional details on the geoprocessing environments that apply to this tool.

Parameters

Dialog

Label	Explanation	Data Type
Input raster or constant value	The input raster to be converted to floating point. 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 floating-point representation of the input values.	Raster

Python

Float(in_raster_or_constant)

Name	Explanation	Data Type
in_raster_or_constant	The input raster to be converted to floating point. 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 floating-point representation of the input values.	Raster

Code sample

Float example 1 (Python window)

This example converts the input raster values to floating point.

import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outFloat = Float("landuse")
outFloat.save("C:/sapyexamples/output/outfloat2")

Float example 2 (stand-alone script)

This example converts the input raster values to floating point.

# Name: Float_Ex_02.py
# Description: Converts each cell value of a raster into a floating-point representation
# Requirements: Spatial Analyst Extension

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

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

# Set local variables
inRaster = "landuse"

# Execute Float
outFloat = Float(inRaster)

# Save the output 
outFloat.save("C:/sapyexamples/output/outfloat")

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

Licensing information

• Basic: Requires Spatial Analyst or Image Analyst or 3D Analyst
• Standard: Requires Spatial Analyst or Image Analyst or 3D Analyst
• Advanced: Requires Spatial Analyst or Image Analyst or 3D Analyst