[Python知识库]Arcgis/python批量栅格计算（乘法*缩放因子）

本文所用数据为一文件夹所有tif影像，进行乘0.01的缩放因子，处理后影像放入新文件夹中

1.如果Python装好了arcgis运行环境，可以直接；python运行。

# coding:utf-8
import os
import arcpy
from arcpy import env
from arcpy.sa import *
import string
arcpy.CheckOutExtension("spatial")
arcpy.gp.overwriteOutput=1

arcpy.env.workspace = "E:/04carbon/NPPyear500mMRT"
rasters = arcpy.ListRasters("*", "tif") #遍历工作空间中的tif格式数据
outPath = 'E:/04carbon/NPP0.01/'
for ras in rasters:# 循环rasters中的所有影像，进行乘法操作
    outrasters = outPath + str(ras)
    outTimes = Times(ras, 0.01)
    outTimes.save(outrasters)
    print(str(ras))
print("All project is OK！")

2.可直接在arcgis中python编辑器运行。

import os
import arcpy
from arcpy import env
from arcpy.sa import *
import string
arcpy.CheckOutExtension("spatial")
arcpy.gp.overwriteOutput=1
arcpy.env.workspace = "E:/04carbon/NPPyear500mMRT"
rasters = arcpy.ListRasters("*", "tif") 
outPath = 'E:/04carbon/NPP0.01/'
for ras in rasters:
    outrasters = outPath + str(ras)
    outTimes = Times(ras, 0.01)
    outTimes.save(outrasters)
    print(str(ras))
print("All project is OK！")