Python中的 Matplotlib.axes.Axes.eventplot()

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.eventplot()函数

matplotlib 库的 axes 模块中的Axes.eventplot()函数用于在给定位置绘制相同的平行线。

Syntax: Axes.eventplot(self, positions, orientation=’horizontal’, lineoffsets=1, linelengths=1, linewidths=None, colors=None, linestyles=’solid’, *, data=None, **kwargs)

Parameters: This method accept the following parameters that are described below:

positions : This parameter is the sequence of objects and each value is an event.
orientation: This parameter is used to controls the direction of the event collections {‘horizontal’, ‘vertical’}.
lineoffsets: This parameter is the offset of the center of the lines from the origin, in the direction orthogonal to orientation.
linelengths: This parameter is the total height of the lines.
linewidths: This parameter is the line width(s) of the event lines, in points.

Returns: This returns the following:

list: This returns the list of EventCollection objects.

编程需要懂一点英语

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

示例 #1：

#Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
import matplotlib
  
  
matplotlib.rcParams['font.size'] = 8.0
   
np.random.seed(789680)
data1 = np.random.random([6, 50])
  
colors1 = ['C{}'.format(i) for i in range(6)]
lineoffsets1 = np.array([-9, -13, 1, 
                         15, 6, 10])
  
linelengths1 = [5, 2, 9, 11, 3, 5]
   
fig, axs = plt.subplots()
axs.eventplot(data1, colors=colors1, 
              lineoffsets=lineoffsets1,
              linelengths=linelengths1)
  
axs.set_title('matplotlib.axes.Axes.eventplot Example')
plt.show()

输出：

示例 #2：

# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
import matplotlib
  
  
matplotlib.rcParams['font.size'] = 8.0
  
np.random.seed(789680)
data1 = np.random.gamma(4, size =[60, 50])
  
lineoffsets1 = 1
linelengths1 = 1
  
fig, [axs1, axs2]= plt.subplots(2, 1)
axs1.eventplot(data1, colors ='green',
               lineoffsets = lineoffsets1, 
               linelengths = linelengths1)
  
axs2.eventplot(data1, colors ='green',
               lineoffsets = lineoffsets1,
               linelengths = linelengths1, 
               orientation ='vertical')
  
axs1.set_title('matplotlib.axes.Axes.eventplot Example')
plt.show()