如何使用Python将.dbf转换为Shapefile

Question

我一直在网上寻找一种比较“python风格”的方法来处理这些数据。

每天我们都会收到一堆.dbf格式的数据（希望如此） - 然后我们需要把这些数据保存为一个shapefile格式。

有没有人能给我一些链接或者建议，帮我理清这个过程？

Answer 1

我随便想想：

import os
import datetime
myfile = "test.txt"
creationdate = os.stat(myfile).st_ctime
timestamp = datetime.datetime.fromtimestamp(creationdate)
datestr = datetime.datetime.strftime(timestamp, "%Y%m%d")
os.rename(myfile, os.path.splitext(myfile)[0] + datestr + os.path.splitext(myfile)[1])

这个代码的作用是把 test.txt 这个文件改名为 test20110221.txt。

Answer 2

要把文件的创建日期加到文件名里，你需要先用 os.stat() 来获取这个创建日期，然后再用 os.rename() 来重命名文件。你可以用 date.strftime() 来格式化日期字符串。

import datetime, os

filename = 'original.ext'

fileinfo = os.stat(filename)
creation_date = datetime.date.fromtimestamp(fileinfo.st_ctime)

os.rename(filename, filename + '-' + creation_date.strftime('%Y-%m-%d'))

Answer 3

原来一直在模型构建器里！

#   (generated by ArcGIS/ModelBuilder)
# Usage: DBF2SHAPEFILE <XY_Table> <Y_Field> <X_Field> <Output_Feature_Class>
# ---------------------------------------------------------------------------

# Import system modules
import sys, string, os, arcgisscripting, datetime

# Adds the creation date to all of the previous shapefiles in that folder
filename = 'D:/test.txt'
fileinfo = os.stat(filename)
creation_date = datetime.date.fromtimestamp(fileinfo.st_ctime)
os.rename(filename, filename + '-' + creation_date.strftime('%Y-%m-%d'))

# Create the Geoprocessor object
gp = arcgisscripting.create()

# Load required toolboxes...
gp.AddToolbox("C:/Program Files/ArcGIS/ArcToolbox/Toolboxes/Data Management Tools.tbx")

# Script arguments...
XY_Table = sys.argv[1]

Y_Field = sys.argv[2]

X_Field = sys.argv[3]

Output_Feature_Class = sys.argv[4]

# Local variables...
Layer_Name_or_Table_View = ""

# Process: Make XY Event Layer...
gp.MakeXYEventLayer_management(XY_Table, X_Field, Y_Field, Layer_Name_or_Table_View, "")

# Process: Copy Features...
gp.CopyFeatures_management(Layer_Name_or_Table_View, Output_Feature_Class, "", "0", "0", "0")