Python 从具有重复直线的线串创建多边形？

下面的代码显示了输入数据的外观

#!/usr/bin/python
import matplotlib.pyplot as plt
from shapely.geometry import MultiLineString
from math import sqrt
import random 

GM = (sqrt(5)-1.0)/2.0
W = 8.0
H = W*GM
SIZE = (W, H)
dim = (1400,2500)
def plot_data(lines,center):
    fig = plt.figure(1, figsize=SIZE, dpi=90)
    ax = fig.add_subplot(121)
    mline1 = MultiLineString(lines)
    plot_coords(ax, mline1)
    plot_lines(ax, mline1)        
    for i in range(len(center)):
         ax.plot(center[i][0],center[i][1],'or')
         ax.annotate("P%d"%i,(center[i][0],center[i][1]))
    ax.set_title('General Polygon')
    xrange = [-1, float(dim[0])]
    yrange = [-1, float(dim[1])]
    ax.set_xlim(*xrange)
    ax.set_ylim(*yrange)
    ax.set_aspect(1)        
    plt.show()

def v_color(ob):
    r = lambda: random.randint(0,255)
    hex_number = '#%02X%02X%02X' % (r(),r(),r())
    return hex_number

def plot_coords(ax, ob):
    for line in ob:
        x, y = line.xy
        ax.plot(x, y, 'o', color='#999999', zorder=1)

def plot_lines(ax, ob):

    for line in ob:
        x, y = line.xy
        ax.plot(x, y, color=v_color(ob), alpha=0.7, linewidth=3, solid_capstyle='round', zorder=2)        


linestring = [[(1071.0, 2.0), (1197.0, 2.0), (1197.0, 475.0), (1071.0, 475.0), (1071.0, 2.0)], [(945.0, 2.0), (945.0, 475.0), (1071.0, 475.0), (1071.0, 2.0), (945.0, 2.0)], [(1052.0, 475.0), (1218.0, 475.0), (1218.0, 981.0), (1052.0, 981.0), (1052.0, 475.0)], [(945.0, 475.0), (945.0, 1210.5), (1052.0, 1210.5), (1052.0, 475.0), (945.0, 475.0)], [(1052.0, 981.0), (1208.0, 981.0), (1208.0, 1192.0), (1052.0, 1192.0)], [(1062.0, 1192.0), (1062.0, 1665.0), (1062.0, 1210.5), (945.0, 1210.5), (945.0, 2235.5), (1062.0, 2235.5), (1062.0, 1665.0), (1188.0, 1665.0), (1188.0, 1192.0), (1062.0, 1192.0)], [(1062.0, 2021.0), (1218.0, 2021.0), (1218.0, 2232.0), (1062.0, 2232.0), (1062.0, 2021.0), (1198.0, 2021.0), (1198.0, 1665.0), (1188.0, 1665.0)], [(1132.5, 2235.5), (352.0, 2235.5), (352.0, 2321.5), (1132.5, 2321.5), (1132.5, 2235.5)], [(1132.5, 2321.5), (1132.5, 2407.5), (352.0, 2407.5), (352.0, 2321.5), (1132.5, 2321.5)], [(825.0, 2108.0), (352.0, 2108.0), (352.0, 2234.0), (825.0, 2234.0), (825.0, 2108.0)], [(352.0, 2096.0), (352.0, 2391.0), (2.0, 2391.0), (2.0, 2096.0), (352.0, 2096.0)], [(386.0, 2.0), (386.0, 2108.0), (945.0, 2108.0), (945.0, 2.0), (386.0, 2.0)], [(386.0, 2096.0), (2.0, 2096.0), (2.0, 2.0), (386.0, 2.0), (386.0, 2096.0)]]
center = [(1135.0, 728.0), (1140.0, 2126.5), (1130.0, 1086.5), (1130.0, 1843.0), (1134.0, 238.5), (1125.0, 1428.5), (742.25, 2278.5), (742.25, 2364.5), (1008.0, 238.5), (1003.5, 1723.0), (998.5, 842.75), (665.5, 1055.0), (588.5, 2171.0), (194.0, 1049.0), (177.0, 2243.5)]

plot_data(linestring,center)

数据包括许多行字符串，其中一些具有重复的行。我想结合线来创建矩形（或多边形）。

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有两个问题，我不知道如何合并这些线来创建一个大的形状，然后从这个形状创建多边形

我运行了你的代码，它似乎工作得很好。你能修改一下你的问题并澄清到底是什么问题吗？如果你能展示出预期的输出，以及它与你现在得到的不同，这会有所帮助。编辑我的问题，我希望你能理解它，直到不清楚为止。您只是想从

linestring

的每个内部列表中创建一个多边形吗？像

polygons=[linestring中x的多边形（x）]

？我也不确定你所说的“大形状”是什么意思，这是我过去的老方法，但是有些线串没有相同的格式（比如使用合并2个线串来创建2个多边形）。如果我使用这种方法，我可以得到这样的结果：看右上角（P6，P7），所以我必须改变方法