”城市公交线路站点数据爬取 + csv站点数据转ShapeFile矢量数据“（三）点csv转shp

这里用pyshp完成转换。

坐标纠偏（gcj02转wgs84）和定义投影（proj.4）酌情操作。

#-*-coding:utf-8-*-
import shapefile as shp
import csv
import codecs
import os

def trans_point(folder, fn, delimiter=','):
    '''transfer a csv file to shapefile'''
    # create a point shapefile
    output_shp = shp.Writer(folder + "%s.shp"%fn.split('.')[0], shp.POINT)
    # for every record there must be a corresponding geometry.
    output_shp.autoBalance = 1
    # create the field names and data type for each you can omit fields here
    # 顺序一定要与下面的保持一致
    #关键步
    output_shp.field('PointUid', 'C', 80) # string, max-length
    #output_shp.field('KeyName', 'C', 20)
    output_shp.field('BusName', 'C', 70)
    output_shp.field('StationName', 'C', 50)
    output_shp.field('LON', 'C', 15)
    output_shp.field('LAT', 'C', 15)
    counter = 1 # count the features
    # access the CSV file
    with codecs.open(folder + fn, 'rb', 'utf-8') as csvfile:
        reader = csv.reader(csvfile, delimiter=delimiter)
        next(reader, None) # skip the header
        #loop through each of the rows and assign the attributes to variables
        for row in reader:
            try:
                ###只有上海数据有KeyName
                #关键步
                PointUid = row[0]
                #KeyName= row[1]
                BusName = row[1]
                StationName = row[2]
                LON = row[3]
                LAT = row[4]
                output_shp.point(float(LON), float(LAT)) # create the point geometry
                output_shp.record(PointUid,BusName,StationName,LON,LAT) # 关键步add attribute data
                if counter % 10000 == 0:
                    print("Feature " + str(counter) + " added to Shapefile.")
                counter = counter + 1
            except Exception as e:
                print(e)
                print(row)

#listJS = ["changzhou","huaian","lianyungang","nanjing","nantong","suqian","suzhou","taizhou","wuxi","xuzhou","yancheng","yangzhou","zhenjiang"]
for i in listJS:
    trans_point("E:\\公交站点csv转shp\\","{}点总量.csv".format(i))

最后结果：

 

 厌世写手不想再写py爬虫了，立个flag，这个号不会再更新爬虫了。