Synthèse
Categorizes the pixel values of a raster object into groups with specific values.
For example, assign image values from 1 to 25 a value of 1, and image values from 200 to 255 a value of 255.
Discussion
For more information about how this function works, see the Remap raster function.
The referenced raster dataset for the raster object is temporary. To make it permanent, you can call the raster object's save method.
Syntaxe
Remap (raster, {input_ranges}, {output_values}, {no_data_ranges}, {allow_unmatched})
Paramètre | Explication | Type de données |
raster | The input raster. | Raster |
input_ranges | Input ranges are specified in pairs: from (inclusive) and to (exclusive). (La valeur par défaut est None) | Double |
output_values |
Output values of corresponding input_ranges. (La valeur par défaut est None) | Double |
no_data_ranges |
NoData ranges are specified in pairs: from (inclusive) and to (exclusive). (La valeur par défaut est None) | Double |
allow_unmatched |
Missing values in the reclass table can retain their value or be remapped to NoData.
(La valeur par défaut est False) | Boolean |
Type de données | Explication |
Raster | The output raster. |
Exemple de code
This example reclassifies the input raster.
from arcpy.ia import *
out_remap_raster = Remap("NomalRaster.tif")
out_remap_raster.save("C:/arcpyExamples/raster_remap.tif")
This example reclassifies the input raster.
# Import system modules
import arcpy
from arcpy.ia import *
# Set the analysis environments
arcpy.env.workspace = "C:/arcpyExamples/data"
# Set Local Variables
in_raster = "raster.tif"
# Excute Remap function
out_remap_raster = Remap(in_raster, [-5, 0, 0, 5], [-1, 1])
# Save output
out_remap_raster.save("C:/arcpyExamples/outputs/raster_remap.tif")
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