matplotlib之極座標系的極徑網格線(rgrids)的顯示刻度

matplotlib之極座標系的極徑網格線(rgrids)的顯示刻度

 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 zhfont = mpl.font_manager.FontProperties(fname='/usr/share/fonts/truetype/wqy/wqy-microhei.ttc') 14 
15 x = plt.subplot(111, polar=True) 16 
17 plt.figtext(0.52, 0.95, '默認rgrids', ha='center', size=20,fontproperties=zhfont) 18 plt.rgrids() 19 plt.savefig('default_rgrids.jpg') 20 plt.show() 21 
22 plt.figtext(0.52, 0.95, '指定radii', ha='center', size=20,fontproperties=zhfont) 23 plt.rgrids((0.25, 0.5, 1.0)) 24 plt.savefig('specail_radii.jpg') 25 plt.show() 26 
27 plt.figtext(0.52, 0.95, '指定radii和labels', ha='center', size=20,fontproperties=zhfont) 28 plt.rgrids((0.25, 0.5, 1.0), ('a', 'b', 'c')) 29 plt.savefig('specail_radii_labels.jpg') 30 
31 plt.show()

 

 

 

matplotlib.pyplot.rgrids(*args, **kwargs)
　　Get or set the radial gridlines on a polar plot.

　　get or set 徑向網格線

call signatures:

　　lines, labels = rgrids()
　　lines, labels = rgrids(radii, labels=None, angle=22.5, **kwargs)
When called with no arguments, rgrid() simply returns the tuple (lines, labels), where lines is an array of radial gridlines (Line2D instances) and labels is an array of tick labels (Text instances).

若是不帶參數，那麼使用默認的 極徑 顯示刻度

 

When called with arguments, the labels will appear at the specified radial distances and angles.

labels, if not None, is a len(radii) list of strings of the labels to use at each angle.

If labels is None, the rformatter will be used

若是指定 radii，那麼將會以指定的 radii 顯示極徑刻度

若是指定radii和labels，那麼極徑刻度 會以指定的labels顯示

angel 指定極軸偏移的角度。