Rank

Resumen

Creates a raster object in which each pixel contains values from a set of input rasters based on the value of the rank input raster.

Debate

For more information about how this function works, see the Rank tool.

The referenced raster dataset for the raster object is temporary. To make it permanent, you can call the raster object's save method.

Sintaxis

Rank (rank_raster, rasters, {extent_type}, {cellsize_type}, {process_as_multiband})
ParámetroExplicaciónTipo de datos
rank_raster

The input raster that defines the rank position to be returned.

Raster
rasters
[rasters,...]

The list of input rasters.

Raster
extent_type

The method that will be used to compute the extent of the output when the input rasters have different extents.

  • FirstOfThe output extent will be defined using the extent of the first input raster.
  • LastOfThe output extent will be defined using the extent of the last input raster.
  • IntersectionOfThe output extent will be defined as the intersecting area of the input rasters.
  • UnionOfThe output extent will be defined as the total extent of the input rasters.

(El valor predeterminado es FirstOf)

String
cellsize_type

The method that will be used to compute the pixel size of the output when the input rasters have different pixel sizes.

  • FirstOfThe output pixel size will be defined using the pixel size of the first input raster.
  • LastOfThe output pixel size will be defined using the pixel size of the last input raster.
  • MaxOfThe output pixel size will be defined using the maximum pixel size of the input rasters.
  • MeanOfThe output pixel size will be defined using the mean of both input rasters.
  • MinOfThe output pixel size will be defined using the minimum pixel size of the input rasters.

(El valor predeterminado es FirstOf)

String
process_as_multiband

Specifies how the bands of the input rasters will be processed.

  • True—Each multiband raster will be processed as a multiband raster. The operation will be performed for each band from one input using the corresponding band number from other inputs.
  • False—Each band from a multiband raster input will be processed separately as a single-band raster.

(El valor predeterminado es False)

Boolean
Valor de retorno
Tipo de datosExplicación
Raster

The output raster.

Muestra de código

Rank example

Calculates the rank of a set of input rasters based on a rank raster.

# Import system modules
import arcpy
from arcpy.ia import *

#Set the local variables
rank_raster = r"c:\temp\value_raster.tif"

rasters = [r"c:\temp\raster1.tif", r"c:\temp\raster2.tif", r"c:\temp\raster3.tif"] 

#Execute
output_raster = Rank(rank_raster, rasters, "UnionOf", "FirstOf", True)