ArcGIS中的工具均提供Python函数，方便支持批量处理。

以掩膜裁剪（提取分析/Extract by Mask）为例，

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可以查找到帮助文档“按掩膜提取”（源1）（源2），路径“工具参考/工具/Spatial Analyst 工具箱/按掩膜提取”函数为：Extract by Mask

Extract by Mask的基本语法是：

ExtractByMask (in_raster, in_mask_data)

in_raster：提取像元的输入栅格。

in_mask_data：用于定义提取区域的输入掩膜数据。它可以是栅格，也可以是要素数据集。

代码示例

以下以批量读取裁剪某文件夹下的tif数据为例(特别注意Python2脚本循环语句格式的空格不能用Tab，否则会报错Indent；

另外在使用不同的矢量裁剪同一影像时，为保证裁剪后范围一致需设置范围为输入栅格范围。例如下面的：

rd = arcpy.sa.Raster(inRaster)

Set the extent environment as the raster, very important for clip with different vector

arcpy.env.extent = rd.extent)：

Import system modules

import arcpy

from arcpy import env

from arcpy.sa import *

Set environment settings

env.workspace = "D:/img"

rasterList = arcpy.ListRasters("*","tif")

输出路径

output_path = "D:/imgMask/"

mask shp

inMaskData = "D:/range.shp"

for raster in rasterList:

print raster

Set local variables

inRaster = raster

rd = arcpy.sa.Raster(inRaster)

Set the extent environment as the raster, very important for clip with different vector

arcpy.env.extent = rd.extent

Execute ExtractByMask

outExtractByMask = ExtractByMask(inRaster, inMaskData)

Save the output

out = output_path + inRaster #对生成文件进行命名

outExtractByMask1.save(out)

代码执行

方式一：将代码保存为单独的py文件，cmd或其它IDE执行。cmd执行命令（如何独立运行脚本）：

<pre spellcheck="false" style="box-sizing: border-box; margin: 5px 0px; padding: 5px 10px; border: 0px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-weight: 400; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: inherit; vertical-align: baseline; cursor: text; counter-reset: list-1 0 list-2 0 list-3 0 list-4 0 list-5 0 list-6 0 list-7 0 list-8 0 list-9 0; background-color: rgb(240, 240, 240); border-radius: 3px; white-space: pre-wrap; color: rgb(34, 34, 34); letter-spacing: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">C:\Python27\ArcGIS10.3\python.exe my_script.py
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方式二：ArcGIS安装的Python IDE里执行

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