【GeoPandas投影】基于proj4
    【GeoPandas支持的坐标系表达方式】
    1.+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs
    2.+init=epsg:4326
    【常用坐标系代码EPSG】查看全部坐标系代码请点我；坐标系Wkid详细介绍；投影坐标Wkid详细介绍

    1. WGS84 Latitude/Longitude "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"或者是"+init=epsg:4326"
    2. UTM Zones (North) "+proj=utm +zone=33 +ellps=WGS84 +datum=WGS84 +units=m +no_defs"
    3. UTM Zones (South) "+proj=utm +zone=33 +ellps=WGS84 +datum=WGS84 +units=m +no_defs +south"
    1. # 获得数据的投影
    2. GeoDataFrame.crs
    3. # 用EPSG代码设置投影
    4. my_geoseries.crs = {'init' :'epsg:4326'}
    5. # 投影转换
    6. world = world.to_crs({'init': 'epsg:3395'})