import arcpy
from arcpy import env
from arcpy.ia import *
env.workspace = "C:/iapyexamples/data"
outIsNull = IsNull("degs")
outIsNull.save("C:/iapyexamples/output/outisnull.img")
IsNull 示例 2（独立脚本）
此示例识别输入栅格中哪些单元格为 NoData，并将结果输出为 Grid 栅格。
# Name: IsNull_Ex_02.py
# Description: Find which pixels of the input raster are NoData
# Requirements: Image Analyst extension
# Import system modules
import arcpy
from arcpy import env
from arcpy.ia import *
# Set environment settings
env.workspace = "C:/iapyexamples/data"
# Set local variables
inRaster = "degs"
# Run IsNull
outIsNull = IsNull(inRaster)
# Save the output
outIsNull.save("C:/iapyexamples/output/outisnull")
