TopoBoundary
Summary
Defines a list of feature classes containing polygons that represent the outer boundary of the output raster.
Discussion
This object is used in the tool Topo To Raster.
Cells in the output raster outside this boundary will be NoData. This option can be used for clipping out water areas along coastlines before making the final output raster.
The boundary polygons define the locations within which the calculations will be performed.
Syntax
TopoBoundary (inFeatures)
Parameter | Explanation | Data Type |
inFeatures [inFeature,...] |
The input feature datasets. | String |
Properties
Property | Explanation | Data Type |
inFeatures (Read and Write) |
The input feature datasets. | String |
Code Sample
TopoBoundary example 1 (Python window)
Demonstrates how to create a TopoBoundary class and use it in the TopoToRaster tool within the Python window.
import arcpy from arcpy import env from arcpy.sa import * env.workspace = "C:/sapyexamples/data" myTopoPtElev = TopoPointElevation([["spots.shp", "spot_meter"], ["spots2.shp", "elev"]]) myTopoContour = TopoContour([["contours.shp", "spot_meter"]]) myTopoBoundary = TopoBoundary(["boundary.shp"]) myTopoLake = TopoLake(["lakes.shp"]) myTopoSink = TopoSink([["sink1.shp", "elevation"], ["sink2.shp", "NONE"]]) myTopoStream = TopoStream(["streams.shp"]) outTopoToRaster1 = TopoToRaster([myTopoPtElev, myTopoContour, myTopoBoundary, myTopoLake, myTopoSink, myTopoStream]) outTopoToRaster1.save("C:/sapyexamples/output/ttraster1")
TopoBoundary example 2 (stand-alone script)
Interpolates a surface with TopoToRaster using the TopoBoundary class as one of the input parameters.
# Name: TopoBoundary_Ex_02.py # Description: Execute TopoToRaster using all the supported objects. # 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" # Create all the supported Objects myTopoPtElev = TopoPointElevation([["spots.shp", "spot_meter"], ["spots2.shp", "elev"]]) myTopoContour = TopoContour([["contours.shp", "spot_meter"]]) myTopoBoundary = TopoBoundary(["boundary.shp"]) myTopoLake = TopoLake(["lakes.shp"]) myTopoSink = TopoSink([["sink1.shp", "elevation"], ["sink2.shp", "NONE"]]) myTopoStream = TopoStream(["streams.shp"]) # Check out the ArcGIS Spatial Analyst extension license arcpy.CheckOutExtension("Spatial") # Execute TopoToRaster outTopoToRaster = TopoToRaster([myTopoPtElev, myTopoContour, myTopoBoundary, myTopoLake, myTopoSink, myTopoStream]) # Save the output outTopoToRaster.save("C:/sapyexamples/output/ttraster2")
Related Topics
7/16/2013