Python Matplotlib.axes.Axes.tick_params()用法及代码示例

# Implementation of matplotlib function 
import matplotlib.pyplot as plt 
import numpy as np 
  
values = np.array([ 
    0.015, 0.166, 0.133, 0.159, 0.041, 
    0.024, 0.195, 0.039, 0.161, 0.018, 
    0.143, 0.056, 0.125, 0.096, 0.094, 
    0.051, 0.043, 0.021, 0.138, 0.075, 
    0.109, 0.195, 0.050, 0.074, 0.079, 
    0.155, 0.020, 0.010, 0.061, 0.008]) 
  
values[[3, 14]] += .8
  
fig, (ax, ax2) = plt.subplots(2, 1, sharex = True) 
  
ax.plot(values, "o-", color ="green") 
ax2.plot(values, "o-", color ="green") 
  
ax.set_ylim(.78, 1.)  
ax2.set_ylim(0, .22) 
  
ax.spines['bottom'].set_visible(False) 
ax2.spines['top'].set_visible(False) 
ax.xaxis.tick_top() 
ax.tick_params(labeltop = False) 
ax2.xaxis.tick_bottom() 
  
d = .005
kwargs = dict(transform = ax.transAxes, 
              color ='k', clip_on = False) 
  
ax.plot((-d, +d), (-d, +d), **kwargs)        
ax.plot((1 - d, 1 + d), (-d, +d), **kwargs)  
  
kwargs.update(transform = ax2.transAxes)   
ax2.plot((-d, +d), (1 - d, 1 + d), **kwargs) 
ax2.plot((1 - d, 1 + d), (1 - d, 1 + d), **kwargs)  
  
fig.suptitle('matplotlib.axes.Axes.tick_params()\ 
function Example\n\n', fontweight ="bold") 
  
plt.show()

# Implementation of matplotlib function 
import matplotlib.pyplot as plt 
  
  
def make_patch_spines_invisible(ax):
    ax.set_frame_on(True) 
    ax.patch.set_visible(False) 
    for sp in ax.spines.values():
        sp.set_visible(False) 
  
  
fig, host = plt.subplots() 
fig.subplots_adjust(right = 0.75) 
  
par1 = host.twinx() 
par2 = host.twinx() 
  
# Offset the right spine of par2. 
# The ticks and label have already been 
# placed on the right by twinx above. 
par2.spines["right"].set_position(("axes",  
                                   1.2)) 
  
# Having been created by twinx, par2  
# has its frame off, so the line of its 
# detached spine is invisible.  First, 
# activate the frame but make the patch 
# and spines invisible. 
make_patch_spines_invisible(par2) 
  
# Second, show the right spine. 
par2.spines["right"].set_visible(True) 
  
p1, = host.plot([0, 1, 2], [0, 1, 2], "b-", 
                label ="Y-label 1") 
  
p2, = par1.plot([0, 1, 2], [0, 30, 20],  
                "r-", label ="Y-label 2") 
  
p3, = par2.plot([0, 1, 2], [500, 300, 150],  
                "g-", label ="Y-label 3") 
  
host.set_xlim(0.25, 1.75) 
host.set_ylim(0.25, 1.75) 
par1.set_ylim(0, 40) 
par2.set_ylim(10, 500) 
  
host.set_xlabel("X-label") 
host.set_ylabel("Y-label 1") 
par1.set_ylabel("Y-label 2") 
par2.set_ylabel("Y-label 3") 
  
host.yaxis.label.set_color(p1.get_color()) 
par1.yaxis.label.set_color(p2.get_color()) 
par2.yaxis.label.set_color(p3.get_color()) 
  
tkw = dict(size = 4, width = 1.5) 
host.tick_params(axis ='y', 
                 colors = p1.get_color(), 
                 **tkw) 
  
par1.tick_params(axis ='y', 
                 colors = p2.get_color(), 
                 **tkw) 
  
par2.tick_params(axis ='y', 
                 colors = p3.get_color(), 
                 **tkw) 
  
host.tick_params(axis ='x', **tkw) 
  
lines = [p1, p2, p3] 
  
host.legend(lines, [l.get_label() for l in lines]) 
  
  
fig.suptitle('matplotlib.axes.Axes.tick_params()\ 
function Example\n\n', fontweight ="bold") 
  
plt.show()