Python中的 Matplotlib.axes.Axes.set_picker()
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_picker()函数
matplotlib 库的 axes 模块中的Axes.set_picker()函数用于定义艺术家的拾取行为。
Syntax: Axes.set_picker(self, picker)
Parameters: This method accept the following parameters as discussed below:
- picker : This parameter is used to set picking behavior. This can be None or bool or float or function.
Returns: This method the picking behavior of the artist.
下面的示例说明了 matplotlib.axes 中的 matplotlib.axes.Axes.set_picker()函数:
示例 1:
# Implementation of matplotlib function
import numpy as np
np.random.seed(19680801)
import matplotlib.pyplot as plt
volume = np.random.rayleigh(27, size = 40)
amount = np.random.poisson(7, size = 40)
ranking = np.random.normal(size = 40)
price = np.random.uniform(1, 7, size = 40)
fig, ax = plt.subplots()
scatter = ax.scatter(volume * 2,
amount**3,
c = ranking**3,
s = price**3,
vmin = -3,
vmax = 3,
cmap ="Spectral")
ax.set_picker(4)
fig.suptitle('matplotlib.axes.Axes.set_picker() \
function Example', fontweight ="bold")
plt.show()
输出:
示例 2:
# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
X = np.random.rand(10, 200)
xs = np.mean(X, axis = 1)
ys = np.std(X, axis = 1)
fig = plt.figure()
ax = fig.add_subplot(111)
line, = ax.plot(xs, ys, 'go-')
ax.set_picker(True)
fig.suptitle('matplotlib.axes.Axes.set_picker()\
function Example', fontweight ="bold")
plt.show()
输出: