python地理地图可视化:folium把百度地图各个城市经纬度解析出来并在地图上展示(三)

import json

import webbrowser as wb

import folium

NAME = 'n'

GEO = 'g'

CITY = 'city'

CITIES = 'cities'

PROVINCE = 'province'

PROVINCES = 'provinces'

LAT = 'latitude'

LNG = 'longitude'

# 把百度地图文件装入字符串

def load_origin_bd_file_to_str():

f = open(file='BaiduMap_cityCenter.txt', mode='r', encoding='gbk')

sss = f.read()

f.close()

return sss

def clean_data(sss):

target = ('municipalities:', 'provinces:', 'cities:', 'n:', 'g:', 'other:')

for old in target:

news = '\"' + old.replace(':', '') + '\":'

newsss = sss.replace(old, news)

sss = newsss

sss = sss.replace(';', '')

return sss

def get_city_lnglat(provin, cities):

lnglats = []

for c in cities:

city_name = c[NAME]

city_geo = c[GEO]

lnglat = city_geo.split(',')

lng = lnglat[0]

lat = lnglat[1].split('|')[0]

geo_dict = {}

geo_dict.__setitem__(PROVINCE, provin)

geo_dict.__setitem__(CITY, city_name)

geo_dict.__setitem__(LNG, lng)

geo_dict.__setitem__(LAT, lat)

lnglats.append(geo_dict)

return lnglats

# 根据传入的各个城市经纬度绘制地图点

def draw_map(city_lnglats):

map = folium.Map(location=[35.3, 100.6],

zoom_start=4,

zoom_control=True,

tiles='OpenStreetMap') # 默认OpenStreetMap

for city in city_lnglats:

for c in city:

folium.Marker(

location=[c[LAT], c[LNG]],

opacity=0.8,

popup='{0}\n{1}\n{2}\n{3}'.format(c[CITY], c[LAT], c[LNG], c[PROVINCE]),

icon=folium.Icon(color="red",

# icon='cloud

) # 默认的icon=info_sign,cloud样式也不错

).add_to(map)

map.save('map.html')

wb.open('map.html') # 浏览器打开

if __name__ == '__main__':

origin_s = load_origin_bd_file_to_str()

res = clean_data(origin_s)

json_result = json.loads(res) # 到这里已经是标准的json格式数据

provinces = json_result[PROVINCES]

city_lnglats = []

for pro in provinces:

city_lnglats.append(get_city_lnglat(provin=pro[NAME], cities=pro[CITIES]))

draw_map(city_lnglats)

最终输出，如图所示：