Python Matplotlib.axes.Axes.get_label()用法及代碼示例

# Implementation of matplotlib function 
import matplotlib.pyplot as plt 
  
fig, ax = plt.subplots() 
  
x = [0, 1] 
y = [1, 1] 
line, = ax.plot(x, y) 
ax.legend(("Line_1", )) 
  
ax.text(0.2, 1.02, "Value Return by get_label()\ 
:" + str(line.get_label())) 
   
  
fig.suptitle('matplotlib.axes.Axes.get_label() 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.get_label()\ 
function Example\n\n', fontweight ="bold") 
  
plt.show()