Round Up (Spatial Analyst)

Summary

Returns the next higher whole number for each cell in a raster.

Illustration

OutRas = RoundUp(InRas1)

Usage

• Input values can be positive or negative.

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

• If a number has any values to the right of the decimal point, the output will be assigned the next highest whole value. For example:

     Input   Output
      5.3     6.0
      4.9     5.0
      3.0     3.0
      6.5     7.0
     -0.2     0.0
     -2.8    -2.0

Syntax

RoundUp (in_raster_or_constant)

Parameter	Explanation	Data Type
in_raster_or_constant	The input values to be rounded up. In order 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 input values converted to integers by rounding up to the next higher whole number.	Raster

Code Sample

RoundUp example 1 (Python window)

This example rounds the values in the input raster to the next higher whole number.

import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outRoundUp = RoundUp("gwhead")
outRoundUp.save("C:/sapyexamples/output/outru")

RoundUp example 2 (stand-alone script)

This example rounds the values in the input raster to the next higher whole number.

# Name: RoundUp_Ex_02.py
# Description: Returns the next higher whole number for each cell
#              in a raster
# Requirements: Spatial Analyst Extension
# Author: ESRI

# 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 = "gwhead"

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

# Execute RoundUp
outRoundURaster = RoundUp(inRaster)

# Save the output 
outRoundURaster.save("C:/sapyexamples/output/outroundup")

Environments

Cell Size, Current Workspace, Mask, Output Coordinate System, Extent, Scratch Workspace, Snap Raster

Licensing Information

ArcView: Requires Spatial Analyst

ArcEditor: Requires Spatial Analyst

ArcInfo: Requires Spatial Analyst