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import matplotlib
import matplotlib.pyplot as plt
import numpy as np
from numpy import *
def plot_image():
datList=[]
for line in open("d:\\learning\\places.txt").readlines():
lineArr=line.split('\t')
datList.append([float(lineArr[4]),float(lineArr[3])])
datMat=mat(datList)
#------------------------------------------------------------------------------------------------------
fig=plt.figure()
rect=[0.1,0.1,0.8,0.8]
scatterMarkers=['s','o','^','8','p','d','v','h','>','<']
axprops=dict(xticks=[],yticks=[])
ax0=fig.add_axes(rect,label='ax0',**axprops)
imgP=plt.imread('d:\\learning\\Portland.png')
ax0.imshow(imgP) #背景图片
ax1
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