RadiusFixed
Resumen
Defines a fixed search radius by specifing a distance and a minimum number of points required for analysis. If the required number of points is not found within the specified distance, the search radius will be increased until the specified minimum number of points is found.
Sintaxis
Parámetro | Explicación | Tipo de datos |
distance |
The distance specifies the distance as a radius within which input sample points will be used to perform the interpolation. The value of the radius is expressed in map units. The default radius is five times the cell size of the output raster. | Double |
minNumberOfPoints |
The minNumberOfPoints is an integer defining the minimum number of points to be used to perform the interpolation. If the required number of points is not found within the specified distance, the search distance will be increased until the specified minimum number of points is found. When the search radius needs to be increased, it is done so until the minNumberOfPoints fall within that radius, or the extent of the radius crosses the lower (southern) and/or upper (northern) extent of the output raster. NoData is assigned to all locations that do not satisfy the above condition. (El valor predeterminado es 0) | Long |
Propiedades
Propiedad | Explicación | Tipo de datos |
distance (Lectura y escritura) |
The distance, in map units, specifying that all input sample points within the specified radius will be used to perform interpolation. | Double |
minNumberOfPoints (Lectura y escritura) |
The minNumberOfPoints is an integer defining the minimum number of points to be used for interpolation. If the required number of points is not found within the specified distance, the search distance will be increased until the specified minimum number of points is found. | Long |
Ejemplo de código
Demonstrates how to create a RadiusFixed class and use it in the Kriging tool within the Python window.
import arcpy from arcpy import env from arcpy.sa import * env.workspace = "C:/sapyexamples/data" myRadius = RadiusFixed(80000) outKriging = Kriging("ca_ozone_pts.shp", "ELEVATION", "SPHERICAL", "", myRadius) outKriging.save("C:/sapyexamples/output/krigradfix")
Calculates a surface with the Idw interpolation tool using the RadiusFixed class.
# Name: RadiusFixed_Ex_02.py # Description: Uses the RadiusFixed object to execute IDW tool # 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 inFeature = "ca_ozone_pts.shp" # Create the Radius Object distance = 15000 minNumPoints = 3 searchRadius = RadiusFixed(distance, minNumPoints) # Check out the ArcGIS Spatial Analyst extension license arcpy.CheckOutExtension("Spatial") # Execute IDW outRadFix = Idw(inFeature, "elevation", 2000, 2, searchRadius) # Save the output outRadFix.save("C:/sapyexamples/output/idwradfix")