Image Analyst ライセンスで利用できます。
Spatial Analyst のライセンスで利用可能。
サマリー
Provides access to all existing math functions and returns a raster object with the mathematical operation applied.
説明
For more information about how this function works, see the Raster Calculator 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.
構文
RasterCalculator (rasters, input_names, expression, {extent_type}, {cellsize_type})
パラメーター | 説明 | データ タイプ |
rasters [rasters,...] | The list of input rasters. | Raster |
input_names [input_names,...] | The user-defined variable names. | String |
expression | Build an algebraic expression to perform spatial analysis on the input raster. | String |
extent_type | The spatial extent used to create the output raster.
(デフォルト値は次のとおりです FirstOf) | String |
cellsize_type | The cell size used to create the output raster.
(デフォルト値は次のとおりです FirstOf) | String |
データ タイプ | 説明 |
Raster | The output raster. |
コードのサンプル
Example of a map algebraic expression using a raster calculator.
from arcpy.ia import *
out_rc_multi_raster = RasterCalculator(["raster1.tif", "raster2.tif"],
["x", "y"], "x*y")
out_rc_multi_raster.save("C:/arcpyExamples/raster_rc_multi.tif")
Example of a map algebraic expression using a raster calculator.
# Import system modules
import arcpy
from arcpy.ia import *
# Check out the ArcGIS Image Analyst extension license
arcpy.CheckOutExtension("ImageAnalyst")
# Set the analysis environments
arcpy.env.workspace = "C:/arcpyExamples/data"
# Set local variables
in_raster1 = "raster1.tif"
in_raster2 = "raster2.tif"
# Excuate RasterCalculator(Minus) function
out_rc_minus_raster = RasterCalculator([in_raster1, in_raster2], ["x", "y"],
"x-y", "", "FirstOf")
# Save the output
out_rc_minus_raster.save("C:/arcpyExamples/raster_rc_minus.tif")