Minus (3D Analyst)

License Level:BasicStandardAdvanced

Summary

Subtracts the value of the second input raster from the value of the first input raster on a cell-by-cell basis.

Illustration

Minus illustration
Minus_3d (InRas1, InRas2, OutRas)

Usage

Syntax

Minus_3d (in_raster_or_constant1, in_raster_or_constant2, out_raster)
ParameterExplanationData Type
in_raster_or_constant1

The input from which to subtract the values in the second input.

A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To be able to specify a number for both inputs, the cell size and extent must first be set in the environment.

Raster Layer | Constant
in_raster_or_constant2

The input values to subtract from the values in the first input.

A number can be used as an input for this parameter, provided a raster is specified for the other parameter. To be able to specify a number for both inputs, the cell size and extent must first be set in the environment.

Raster Layer | Constant
out_raster

The output raster.

The cell values are the product of the first input multiplied by the second.

Raster Dataset

Code Sample

Minus example 1 (Python window)

This example subtracts the values of the second input raster from the first.

import arcpy
from arcpy import env
env.workspace = "C:/data"
arcpy.Minus_3d("elevation",  100, "c:/output/outminus")
Minus example 2 (stand-alone script)

This example subtracts the values of the second input raster from the first.

# Name: Minus_3d_Ex_02.py
# Description: Subtracts the value of the second input raster from the
#              value of the first input raster on a cell-by-cell basis
# Requirements: 3D Analyst Extension

# Import system modules
import arcpy
from arcpy import env

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

# Set local variables
inRaster1 = "degs"
inRaster2 = "negs"

# Check out the ArcGIS 3D Analyst extension license
arcpy.CheckOutExtension("3D")

# Execute Minus
arcpy.Minus_3d(inRaster1, inRaster2, "C:/output/outminus.tif")

Environments

Related Topics

Licensing Information

ArcGIS for Desktop Basic: Requires 3D Analyst or Spatial Analyst
ArcGIS for Desktop Standard: Requires 3D Analyst or Spatial Analyst
ArcGIS for Desktop Advanced: Requires 3D Analyst or Spatial Analyst
3/7/2014