多个点坐标存储在str中，如何转换成LineString？

思路：

1.str转换成list

2.经度、维度转换成float

3.构建元祖，添加到一个空list（line_list）

4.最后直接通过LineString构建

数据如下

from shapely.geometry import LineString

tmp = '114.185246,30.523517;114.18529,30.52349;114.185478,30.523372;114.185698,30.523238;114.186717,30.522626;114.187774,30.521971;114.188412,30.521553;114.189003,30.521199;114.189475,30.520888;114.189748,30.520716;114.190022,30.520534'

def turn_to_linestring(x):

line = LineString()

line_list = []

for i in x.split(';'):

lng = float(i.split(',')[0])

lat = float(i.split(',')[1])

point_tuple = (lng,lat) #构建元祖

line_list.append(point_tuple)

linestring = LineString(line_list)

return linestring

turn_to_linestring(tmp)

结果

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