arcpy-batch-image-clip

arcpy-batch-image-clip.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Author: youth
# @Date:   2015-04-11 09:20:01
# @Last Modified time: 2015-04-11 10:14:58
'''
该代码用于遥感影像的批量裁剪,其中运用到了多进程的处理模式
'''
import os
import glob
import arcpy
from multiprocessing import Pool
PATH = r'E:\scratch\high\EO1H1370392002032110PZ' #指定要被裁剪的数据源的文件夹
SAVE_PATH = r'E:\scratch\high\save'# 指定裁剪后保存的文件夹
extent = '350256.784 3243290.486 357008.965 3247904.828' # 要裁剪的区域
images = glob.glob(r'E:\scratch\high\EO1H1370392002032110PZ\*.TIF') #被裁剪数据的格式 *.TIF *.img等
# 拆分为原子 单个任务 以用于多进程模式
def do_task(task):
    print 'processing %s'%(task[0])
    arcpy.Clip_management(task[0],extent,task[1])
if __name__ == '__main__':
    TASKS = [(image,os.path.join(SAVE_PATH,image[-35:])) for image in images]
    pool = Pool(10)
    pool.map(do_task,TASKS)