Available with Spatial Analyst license.
Available with 3D Analyst license.
Summary
Adds (sums) the values of two rasters on a cell-by-cell basis.
Illustration
Usage
The order of inputs is irrelevant for this tool.
If both inputs are integer, the output will be an integer raster; otherwise, it will be a floating-point raster.
Syntax
arcpy.ddd.Plus(in_raster_or_constant1, in_raster_or_constant2, out_raster)
| Parameter | Explanation | Data Type |
in_raster_or_constant1 | The input whose values will be added to. 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 whose values will be added to 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 sum of the first input added to the second. | Raster Dataset |
Code sample
Plus example 1 (Python window)
This example adds the values of two Grid rasters and outputs the result as an IMG raster.
import arcpy
from arcpy import env
env.workspace = "C:/data"
arcpy.Plus_3d("elevation", 15, "C:/output/outplus.img")
Plus example 2 (stand-alone script)
This example adds the values of two Grid rasters and outputs the result as a Grid raster.
# Name: Plus_3d_Ex_02.py
# Description: Adds the values of two rasters 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
inRaster = "elevation"
inConstant = 15
# Check out the ArcGI 3D Analyst extension license
arcpy.CheckOutExtension("3D")
# Execute Plus
arcpy.Plus_3d(inRaster, inConstant,"c:/output/outplus")
Environments
Licensing information
- Basic: Requires 3D Analyst or Spatial Analyst
- Standard: Requires 3D Analyst or Spatial Analyst
- Advanced: Requires 3D Analyst or Spatial Analyst