数据格式：（polygon.txt) 里面含有2个多边形，一行是一个点

0.085, 0.834,
0.024, 0.744,
0, 0.63,
0.024, 0.516,
0.085, 0.427,
0.5, 0.02,
0.675, 0.191,
0.795, 0.071,
0.815, 0.052,
0.835, 0.032,
0.84, 0.026,
0.844, 0.022,
0.856, 0.012,
0.871, 0.005,
0.886, 0.001,
0.903, 0,

0.823, 0.061,
0.823, 0.062,
0.826, 0.061,

import pylab as pyimport timefrom pylab import *from matplotlib.font_manager import FontPropertiesimport matplotlib.pyplot as pltfont = FontProperties(fname=r"c:\windows\fonts\simsun.ttc", size=14)def readdata(ls): l = ls.split(',') if len(l)>2: return [l[0],l[1]] else: return Noneif "__main__"==__name__: print(9) file_obj=open('fanmaker.txt') k=0 line=file_obj.readline() polygon =[] while line: k+=1 px=[] py=[] while line: row = readdata(line) print (line) px.append(row[0]) py.append(row[1]) line=file_obj.readline() if line=='\n': ps=[] px.append(px[0]) py.append(py[0]) ps.append(px) ps.append(py) polygon.append(ps) line=file_obj.readline() break x=np.array(polygon[0][0]) y=np.array(polygon[0][1])## plt.fill(x,y,'b') plt.plot(x,y,'b-', linewidth=2) for i in range(len(polygon)-1): x=np.array(polygon[i+1][0]) y=np.array(polygon[i+1][1])## plt.fill(x,y,'b') plt.plot(x,y,'r-', linewidth=2) plt.hold(True)## plt.show() x1=[-0.5 ,1.5] x2=[-0.5,-0.5] x3=[1.5 ,-0.5] x4=[1.5,1.5] plt.plot(x1,x2,'-') plt.plot(x2,x3,'-') plt.plot(x3,x4,'-') plt.plot(x4,x1,'-') plt.axis([-0.5,1.5 ,-0.5,1.5]) plt.show() # plt.axis('tight') file_obj.close()

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