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positioner

2022-04-23 17:58:00 【Feng Ye 520】

import matplotlib.pyplot as mp
import numpy as np
mp.figure(facecolor='lightgray')
locators = [
'mp.NullLocator()',
'mp.MaxNLocator(nbins=3,steps=[1,3,5,7,9])',
'mp.FixedLocator(locs=[0,2.5,5,7.5,10])',
'mp.AutoLocator()',
'mp.IndexLocator(offset=0.5,base=1.5)',
'mp.MultipleLocator()',
'mp.LinearLocator(numticks=6)',
'mp.LogLocator(base=2,subs=[1.0])'
]
n_locators = len(locators)
for i, locator in enumerate(locators):
mp.subplot(n_locators, 1, i + 1)
mp.xlim(0, 10)
mp.ylim(-1, 1)
mp.yticks(())
ax = mp.gca()
ax.spines['left'].set_color('none')
ax.spines['top'].set_color('none')
ax.spines['right'].set_color('none')
ax.spines['bottom'].set_position(('data', 0))
ax.xaxis.set_major_locator(eval(locator))
ax.xaxis.set_minor_locator(mp.MultipleLocator(0.1))
mp.plot(np.arange(11), np.zeros(11), c='none')
mp.text(5, 0.3, locator[3:], ha='center', size=12)