Python中的 Matplotlib.axes.Axes.set_axisbelow()

Matplotlib是Python中的一个库，它是 NumPy 库的数值数学扩展。 Axes 类包含大部分图形元素：Axis、Tick、Line2D、Text、Polygon 等，并设置坐标系。 Axes 的实例通过回调属性支持回调。

matplotlib.axes.Axes.set_axisbelow()函数

matplotlib 库的 axes 模块中的Axes.set_axisbelow()函数用于设置轴刻度和网格线是高于还是低于大多数艺术家。

Syntax: Axes.set_axisbelow(self, b)

Parameters: This method accept only one parameters.

b: This parameter contains a boolean value and it’s possible values are : True, False or “line”.

Returns:This method does not returns anything.

下面的示例说明了 matplotlib.axes 中的 matplotlib.axes.Axes.set_axisbelow()函数：

示例 1：

# Implementation of matplotlib function
import matplotlib.pyplot as plt
import numpy as np
  
# Random test data
np.random.seed(19680801)
all_data = [np.random.normal(0, std, size = 100) for std in range(1, 6)]
labels = ['x1', 'x2', 'x3', 'x4', 'x5']
  
fig, ax = plt.subplots()
  
bplot = ax.boxplot(all_data,
                     vert = True,  
                     patch_artist = True,  
                     labels = labels) 
colors = ['lightpink', 'lightblue', 'lightgreen',
          "lightgrey", "yellow"]
for patch, color in zip(bplot['boxes'], colors):
    patch.set_facecolor(color)
  
ax.yaxis.grid(True, color ="green", lw = 2)
ax.set_axisbelow(True)
ax.set_xlabel('Samples')
ax.set_ylabel('Observed values')
ax.set_title('matplotlib.axes.Axes.set_axisbelow() \
Example\n', fontsize = 12, fontweight ='bold')
plt.show()

输出：

示例 2：

# Implementation of matplotlib function
import matplotlib.pyplot as plt
import numpy as np
  
# Random test data
np.random.seed(19680801)
all_data = [np.random.normal(0, std, size = 100) for std in range(1, 6)]
labels = ['x1', 'x2', 'x3', 'x4', 'x5']
  
fig, ax = plt.subplots()
  
bplot = ax.boxplot(all_data,
                     vert = True,  
                     patch_artist = True,  
                     labels = labels) 
colors = ['lightpink', 'lightblue', 'lightgreen',
          "lightgrey", "yellow"]
for patch, color in zip(bplot['boxes'], colors):
    patch.set_facecolor(color)
  
ax.yaxis.grid(True, color ="green", lw = 2)
ax.set_axisbelow(False)
ax.set_xlabel('Samples')
ax.set_ylabel('Observed values')
ax.set_title('matplotlib.axes.Axes.set_axisbelow()\
 Example\n', fontsize = 12, fontweight ='bold')
plt.show()

输出：