我有以下代码,它使用我需要的数据从shp.file创建我需要的txt文件。我有一个名为profiles的文件夹,其中包含一些名为(profil1.shp,profil2.shp,profil3.shp等)的形状文件。我想知道如何创建一个循环,以便脚本为每个文件创建一个具有相同名称的txt文件(例如,对于profil1.shp创建profil1.txt,profil2.shp创建profil2.txt等等)。
import ogr, os, sys, osr
os.chdir('..\profiles')
file = open('profil1.txt', 'w')
driver = ogr.GetDriverByName('ESRI Shapefile')
datasource = driver.Open('profil1.shp', 0)
if datasource is None:
print 'Could not open file'
sys.exit(1)
layer = datasource.GetLayer()
feature = layer.GetNextFeature()
while feature:
id = feature.GetFieldAsString('ID')
Distanta = feature.GetFieldAsString('DIST')
Z = feature.GetFieldAsString('Z')
geom = feature.GetGeometryRef()
x = str(geom.GetX())
y = str(geom.GetY())
file.write(id + " " + Distanta + " " + "[X]:" + " " + x + ' ' + '[Y]:' + " " + y + " " + " " + "[Z]" + Z + " " + "\n")
feature.Destroy()
feature = layer.GetNextFeature()
datasource.Destroy()
file.close()
编辑:代码返回无法打开的文件。Photo of the folder containing the files and their respective names. Safe to assume I am doing something wrong.
import ogr, os, sys, osr,os.path
os.chdir = ('C:\Users\Andrei\Desktop\profil3')
l = os.listdir('C:\Users\Andrei\Desktop\profil3')
for i in l:
if i.endswith('.shp'):
s1 = s.split('.')[0] + '.txt'
file = open(s1, 'w')
driver = ogr.GetDriverByName('ESRI Shapefile')
datasource = driver.Open(i, 0)
if datasource is None:
print 'Could not open file'
sys.exit(1)
layer = datasource.GetLayer()
feature = layer.GetNextFeature()
while feature:
id = feature.GetFieldAsString('ID')
Distanta = feature.GetFieldAsString('DIST')
Z = feature.GetFieldAsString('Z')
geom = feature.GetGeometryRef()
x = str(geom.GetX())
y = str(geom.GetY())
file.write(id + " " + Distanta + " " + "[X]:" + " " + x + ' ' + '[Y]:' + " " + y + " " + " " + "[Z]" + Z + " " + "\n")
feature.Destroy()
feature = layer.GetNextFeature()
datasource.Destroy()
file.close()
答案 0 :(得分:0)
您可以使用os.listdir()
列出当前目录中的文件和文件夹。
这将返回当前目录中所有文件的列表(或作为参数指定给它的目录,如果未指定参数,则会检查当前目录)。
然后,您可以使用.shp
功能检查名称以string.endswith()
结尾的文件,然后使用该文件创建新文件。
一小部分的例子 -
import os , os.path
l = os.listdir()
for i in l:
if i.endswith('.shp'):
s1 = s.split('.')[0] + '.txt'
最后,s1将包含扩展名为.txt
的文件。
然后你可以在这个文件上做你的逻辑,并继续这样做。
完整代码看起来像 -
import ogr,os,sys,osr,os.path
os.chdir(” .. \型材) l = os.listdir() 因为我在l: if i.endswith('。shp'): s1 = s.split('。')[0] +'。txt' file = open(s1,'w')
driver = ogr.GetDriverByName('ESRI Shapefile')
datasource = driver.Open(i, 0)
if datasource is None:
print 'Could not open file'
sys.exit(1)
layer = datasource.GetLayer()
feature = layer.GetNextFeature()
while feature:
id = feature.GetFieldAsString('ID')
Distanta = feature.GetFieldAsString('DIST')
Z = feature.GetFieldAsString('Z')
geom = feature.GetGeometryRef()
x = str(geom.GetX())
y = str(geom.GetY())
file.write(id + " " + Distanta + " " + "[X]:" + " " + x + ' ' + '[Y]:' + " " + y + " " + " " + "[Z]" + Z + " " + "\n")
feature.Destroy()
feature = layer.GetNextFeature()
datasource.Destroy()
file.close()
打开文件等的更好方法是使用with
语句。查看其教程{{3}}。