Python 中的 matplotlib . axis . axis . get _ offset _ text()函数
原文:https://www . geeksforgeeks . org/matplotlib-axis-axis-get _ offset _ text-in-function-python/
Matplotlib 是 Python 中的一个库，是 NumPy 库的数值-数学扩展。这是一个神奇的 Python 可视化库，用于 2D 数组图，并用于处理更广泛的 SciPy 堆栈。
matplotlib . axis . axis . get _ offset _ text()函数
matplotlib 库的 Axis 模块中的 Axis.get_offset_text()函数用于获取作为 text 实例的 axis offsetText。
语法: Axis.get_offset_text(self)
参数:该方法不接受任何参数。
返回值:该方法将轴偏移文本作为文本实例返回。
下面的例子说明了 matplotlib . axis . axis . get _ offset _ text()函数在 matplotlib.axis: 中的作用
例 1:
Python 3
# Implementation of matplotlib function
from matplotlib.axis import Axis
import matplotlib.pyplot as plt
import matplotlib.text
fig, ax = plt.subplots()
ax.plot([5,1], label="Label 1")
ax.plot([3,0], label="Label 2")
legend = ax.legend(loc="upper right")
offset = matplotlib.text.OffsetFrom(legend, (1.0, 0.0))
ax.annotate("String - Info",
xy = (0,0),
size = 14,
xycoords = 'figure fraction',
xytext = (0,-20),
textcoords = offset,
horizontalalignment = 'right',
verticalalignment = 'top')
fig.canvas.draw()
fig.suptitle('Matplotlib.axis.Axis.get_offset_text()\n\
Function Example')
ax.grid()
print("Value of get_offset_text() :",ax.xaxis.get_offset_text())
plt.show()
输出:
Value of get_offset_text() : Text(1, 24.911111111111108, '')
例 2:
Python 3
# Implementation of matplotlib function
from matplotlib.axis import Axis
import matplotlib.pyplot as plt
import numpy as np
fig, geeeks = plt.subplots()
t = np.arange(0.0, 5.0, 0.001)
s = np.cos(3 * np.pi * t)
line = geeeks.plot(t, s, lw = 2)
# Annotation
geeeks.annotate('Local Max', xy =(3.3, 1),
xytext =(3, 1.8),
arrowprops = dict(facecolor ='green',
shrink = 0.05),)
geeeks.set_ylim(-2, 2)
fig.suptitle('Matplotlib.axis.Axis.get_offset_text()\n\
Function Example')
geeeks.grid()
print("Value of get_offset_text() :",geeeks.xaxis.get_offset_text())
plt.show()
输出:
Value of get_offset_text() : Text(1, 0, '')
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