Python中的 Matplotlib.axis.Axis.set_units()函数

Matplotlib是Python中的一个库，它是 NumPy 库的数值数学扩展。它是Python中用于二维数组图的惊人可视化库，用于处理更广泛的 SciPy 堆栈。

Matplotlib.axis.Axis.set_units()函数

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

Syntax: Axis.set_units(self, u) 

Parameters: This method accepts the following parameters. 

• u: This parameter is the units tag.

Return value: This method does not return any value. 

下面的示例说明了 matplotlib.axis 中的 matplotlib.axis.Axis.set_units()函数：

示例 1：

Python3

# 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：

Python3

# 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：