matplotlib实例笔记

下面的图型是在一幅画布上建立的四个球员相关数据的极坐标图

关于这个图的代码如下：

 #_*_coding:utf-8_*_
 import numpy as np
 import matplotlib.pyplot as plt
 from matplotlib.font_manager import FontProperties
 plt.style.use('ggplot')

 font=FontProperties(fname=r'c:\windows\fonts\simsun.ttc',size=12)
 # 本行是为了有效显示中文的字体与大小

 ability_size=6
 ability_label=['进攻','防守','盘带','速度','体力','射术']

 # 创建每个极坐标的位置
 ax1=plt.subplot(221,projection='polar')
 ax2=plt.subplot(222,projection='polar')
 ax3=plt.subplot(223,projection='polar')
 ax4=plt.subplot(224,projection='polar')

 player={
     'M': np.random.randint(size=ability_size, low=60, high=99),
     'H': np.random.randint(size=ability_size, low=60, high=99),
     'P': np.random.randint(size=ability_size, low=60, high=99),
     'Q': np.random.randint(size=ability_size, low=60, high=99),
 }

 theta=np.linspace(0,2*np.pi,6,endpoint=False)
 theta=np.append(theta,theta[0])

 #下面分别画四个球员的能力极坐标图
 player['M']=np.append(player['M'],player['M'][0])
 ax1.plot(theta,player['M'],'r')
 ax1.fill(theta,player['M'],'r',alpha=0.3)
 ax1.set_xticks(theta)
 ax1.set_xticklabels(ability_label,fontproperties=font)
 ax1.set_title('梅西',fontproperties=font,color='r',size=20)
 ax1.set_yticks([20,40,60,80,100])

 player['H']=np.append(player['H'],player['H'][0])
 ax2.plot(theta,player['H'],'g')
 ax2.fill(theta,player['H'],'g',alpha=0.3)
 ax2.set_xticks(theta)
 ax2.set_xticklabels(ability_label,fontproperties=font)
 ax2.set_title('哈维',fontproperties=font,color='g',size=20)
 ax2.set_yticks([20,40,60,80,100])

 player['P']=np.append(player['P'],player['P'][0])
 ax3.plot(theta,player['P'],'b')
 ax3.fill(theta,player['P'],'b',alpha=0.3)
 ax3.set_xticks(theta)
 ax3.set_xticklabels(ability_label,fontproperties=font)
 ax3.set_title('皮克',fontproperties=font,color='b',size=20)
 ax3.set_yticks([20,40,60,80,100])

 player['Q']=np.append(player['Q'],player['Q'][0])
 ax4.plot(theta,player['Q'],'y')
 ax4.fill(theta,player['Q'],'y',alpha=0.3)
 ax4.set_xticks(theta)
 ax4.set_xticklabels(ability_label,fontproperties=font)
 ax4.set_title('切赫',fontproperties=font,color='y',size=20)
 ax4.set_yticks([20,40,60,80,100])

 plt.show()

上述代码也可以利用for循环简化一下

 #_*_coding:utf-8_*_
 import numpy as np
 import matplotlib.pyplot as plt
 from matplotlib.font_manager import FontProperties
 plt.style.use('ggplot')

 font=FontProperties(fname=r'c:\windows\fonts\simsun.ttc',size=12)

 ability_size=6
 ability_label=['进攻','防守','盘带','速度','体力','射术']

 ax1=plt.subplot(221,projection='polar')
 ax2=plt.subplot(222,projection='polar')
 ax3=plt.subplot(223,projection='polar')
 ax4=plt.subplot(224,projection='polar')

 player={
     'M': np.random.randint(size=ability_size, low=60, high=99),
     'H': np.random.randint(size=ability_size, low=60, high=99),
     'P': np.random.randint(size=ability_size, low=60, high=99),
     'Q': np.random.randint(size=ability_size, low=60, high=99),
 }

 theta=np.linspace(0,2*np.pi,6,endpoint=False)
 theta=np.append(theta,theta[0])

 color4=['r','b','g','y']
 player4=['M','H','P','Q']
 ax=[ax1,ax2,ax3,ax4]
 name=['梅西','哈维','皮克','切赫']
 for i in range(4):
     player[player4[i]]=np.append(player[player4[i]],player[player4[i]][0])
     ax[i].plot(theta,player[player4[i]],color4[i])
     ax[i].fill(theta,player[player4[i]],color4[i],alpha=0.3)
     ax[i].set_xticks(theta)
     ax[i].set_xticklabels(ability_label,fontproperties=font)
     ax[i].set_title(name[i],fontproperties=font,color=color4[i],size=20)
     ax[i].set_yticks([20,40,60,80,100])

 plt.show()