matplotlib之设置极坐标的方向
1 #!/usr/bin/env python3 2 #-*- coding:utf-8 -*- 3 ############################ 4 #File Name: polar.py 5 #Author: frank 6 #Mail: frank0903@aliyun.com 7 #Created Time:2018-05-22 22:08:01 8 ############################ 9 import matplotlib.pyplot as plt 10 import numpy as np 11 import matplotlib as mpl 12 13 #2. 怎样设置极坐标的方向 14 plt.subplots_adjust(wspace=0.3)#控制两个subplot的间距，否则会有部分标签重叠 15 ax1 = plt.subplot(121, polar=True) 16 ax2 = plt.subplot(122, polar=True) 17 #print(dir(ax)) 18 theta = np.arange(0, 2*np.pi, 0.1) 19 ax1.set_theta_direction(-1) 20 ax2.set_theta_direction('anticlockwise') 21 ax1.plot(theta, theta/6,'o--') 22 ax2.plot(theta, theta/6,'o--') 23 plt.savefig('theta_direction.jpg') 24 plt.show()
ax1 是顺时针方向的图
ax2 是逆时针方向的图
set_theta_direction(direction)
Set the direction in which theta increases.
clockwise, -1:
Theta increases in the clockwise direction
counterclockwise, anticlockwise, 1:
Theta increases in the counterclockwise direction
如果direction的值为1，表示逆时针方向，即默认theta增长方向；
如果direction的值为-1，表示顺时针方向。
同时direction也支持 ' clockwise'，'counterclockwise' ，'anticlockwise'
