python 画园和椭圆
2021/7/9 14:36:25
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python 画园和椭圆
from matplotlib.patches import Ellipse, Circle import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add_subplot(111) ell1 = Ellipse(xy = (0.0, 0.0), width = 10, height = 5, angle = 0.0, facecolor= 'yellow', alpha=0.3) cir1 = Circle(xy = (0.0, 0.0), radius=2, alpha=0.5) ax.add_patch(ell1) ax.add_patch(cir1) x, y = 0, 0 ax.plot(x, y, 'ro') plt.axis('scaled') ax.spines['right'].set_color('none') # 设置右‘脊梁’为无色 ax.spines['top'].set_color('none') # 设置上‘脊梁’为无色 ax.xaxis.set_ticks_position('bottom') # 底部‘脊梁’设置为X轴 ax.spines['bottom'].set_position(('data', 0)) # 底部‘脊梁’移动位置,y的data ax.yaxis.set_ticks_position('left') # 左部‘脊梁’设置为Y轴 ax.spines['left'].set_position(('data', 0)) # 左部‘脊梁’移动位置,x的data plt.savefig('d:/test2.png') #plt.axis('equal') #changes limits of x or y axis so that equal increments of x and y have the same length plt.show()
from matplotlib.patches import Ellipse, Circle import matplotlib.pyplot as plt fig = plt.figure() ax = fig.add_subplot(111) ell1 = Ellipse(xy = (0.0, 0.0), width = 10, height = 5, angle = 0.0, facecolor= 'yellow', alpha=0.3) cir1 = Circle(xy = (0.0, 0.0), radius=2, alpha=0.5) ax.add_patch(ell1) ax.add_patch(cir1) x, y = 0, 0 ax.plot(x, y, 'ro') plt.axis('scaled') ax.spines['right'].set_color('none') # 脊梁’设置上‘为无色 ax.xaxis.set_ticks_position('bottom') # 脊梁’轴 ax.spines['bottom'].set_position(('data', 0)) # 脊梁’的data ax.yaxis.set_ticks_position('left') # 脊梁’轴 ax.spines['left'].set_position(('data', 0)) # 脊梁’的data plt.savefig('d:/test2.png') #plt.axis('equal') #changes limits of x or y axis so that equal increments of x and y have the same length plt.show()
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