Corridor (Spatial Analyst)
Summary
Calculates the sum of accumulative costs for two input accumulative cost rasters.
Usage
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While any two rasters can be used for the input, to obtain a meaningful result they should be unaltered accumulative cost output rasters.
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The order of the two inputs is irrelevant.
Syntax
Corridor (in_distance_raster1, in_distance_raster2)
Parameter | Explanation | Data Type |
in_distance_raster1 |
The first input distance raster. It should be an accumulated cost distance output from a distance tool such as Cost Distance or Path Distance. | Raster Layer |
in_distance_raster2 |
The second input distance raster. It should be an accumulated cost distance output from a distance tool such as Cost Distance or Path Distance. | Raster Layer |
Return Value
Name | Explanation | Data Type |
out_raster |
The output corridor raster. | Raster |
Code Sample
Corridor example 1 (Python window)
The following Python Window script demonstrates how to use the Corridor tool.
import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/sapyexamples/data"
outCorr = Corridor("costraster", "focalcost.tif")
outCorr.save("c:/sapyexamples/output/corridor")
Corridor example 2 (stand-alone script)
Calculate a wildlife corridor between two known protected areas.
# Name: Corridor_Ex_02.py
# Description: Calculate a potential wildlife corridor between
# two known protected areas.
# 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
inCostRaster = "costdist01"
nextCostRaster = "cotdist02"
# Check out the ArcGIS Spatial Analyst extension license
arcpy.CheckOutExtension("Spatial")
# Execute Corridor
outCorridor = Corridor(inCostRaster, nextCostRaster)
#Limit the corridor to a threshold to show a potential corridor
corridor = Con(outCorridor, 1, 0, "VALUE < 100")
# Save the output
outCorridor.save("C:/sapyexamples/output/costout")
Environments
Related Topics
Licensing Information
ArcGIS for Desktop Basic: Requires Spatial Analyst
ArcGIS for Desktop Standard: Requires Spatial Analyst
ArcGIS for Desktop Advanced: Requires Spatial Analyst
4/10/2014