Matplotlib.axis.axis.set_units()

matplotlib库的Axis模块中的Axis.set_units()函数用于设置Axis的单位。

语法:Axis.set_units(self, u)

参数:该方法接受以下参数。

• u:这个参数是单位标签。

返回值:该方法不返回任何值。

下面的例子演示了matplotlib.axis.axis.set_units()函数在matplotlib.axis中的作用:

示例1

# Implementation of matplotlib function
from matplotlib.axis import Axis
import random
import matplotlib.lines as lines
import matplotlib.patches as patches
import matplotlib.text as text
import matplotlib.collections as collections
  
from basic_units import cm, inch
import numpy as np
import matplotlib.pyplot as plt
  
fig, ax = plt.subplots()
ax.xaxis.set_units(cm)
ax.yaxis.set_units(cm)
  
np.random.seed(19680801)
  
line = lines.Line2D([2*cm, 8*cm], [0*cm, 2.5*cm],
                    lw=2, color='green', axes=ax)
ax.add_line(line)
  
t = text.Text(3*cm, 2.5*cm,
              'Line 1',
              ha='left',
              va='bottom',
              axes=ax,
              color='red')
ax.add_artist(t)
  
ax.set_xlim(-1*cm, 10*cm)
ax.set_ylim(-1*cm, 10*cm)
  
ax.grid(True)
  
fig.suptitle("""matplotlib.axis.Axis.set_units()
function Example\n""", fontweight ="bold")  
      
plt.show()

输出:

示例2

# Implementation of matplotlib function
from matplotlib.axis import Axis
import numpy as np
import matplotlib.pyplot as plt
from basic_units import secs
  
# create masked array
data = (1, 2, 3, 4, 5, 6, 7, 8)
mask = (1, 0, 1, 0, 0, 0, 1, 0)
xsecs = secs * np.ma.MaskedArray(data, mask, float)
  
fig, ax1 = plt.subplots()
  
ax1.scatter(xsecs, xsecs)
ax1.yaxis.set_units(secs)
  
ax1.grid()
  
fig.suptitle("""matplotlib.axis.Axis.set_units()
function Example\n""", fontweight ="bold")  
      
plt.show()

输出: