# -*- coding: utf-8 -*-
"""
date: Fri Dec 14 11:46:34 2018
python: Anaconda 3.6.5
author: kanade
email: kanade@blisst.cn
"""
import numpy as np
import matplotlib.pyplot as mp


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=21)',
    '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['right'].set_color('none')
    ax.spines['top'].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))
    # 不画图有些刻度显示报错，所以画出来但不显示
    mp.plot(np.arange(11), np.zeros(11), c='none')
    # 显示文字
    mp.text(5, 0.3, locator[3:], ha='center', size=12)


mp.tight_layout()
mp.show()