Python 中的 matplotlib . figure . figure . get _ children()
原文:https://www . geesforgeks . org/matplotlib-figure-figure-get _ children-in-python/
Matplotlib 是 Python 中的一个库，是 NumPy 库的数值-数学扩展。人物模块提供了顶级的艺术家，人物，包含了所有的剧情元素。该模块用于控制所有情节元素的子情节和顶层容器的默认间距。
matplotlib . figure . figure . get _ children()方法
matplotlib 库的 get_children()方法人物模块用于获取人物中包含的艺术家列表。
语法: get_children(self)
参数:此方法不接受任何参数。
返回:该方法返回图中包含的艺术家列表。
下面的例子说明了 matplotlib.figure . figure . get _ children()函数在 matplotlib . figure:
例 1:
# Implementation of matplotlib function
import matplotlib.pyplot as plt
from matplotlib.lines import Line2D
import numpy as np
from numpy.random import rand
fig, ax2 = plt.subplots()
ax2.bar(range(10), rand(10), picker = True)
for label in ax2.get_xticklabels():
label.set_picker(True)
def onpick1(event):
if isinstance(event.artist, Line2D):
thisline = event.artist
xdata = thisline.get_xdata()
ydata = thisline.get_ydata()
ind = event.ind
print('onpick1 line:',
np.column_stack([xdata[ind],
ydata[ind]]))
elif isinstance(event.artist, Rectangle):
patch = event.artist
print('onpick1 patch:', patch.get_path())
elif isinstance(event.artist, Text):
text = event.artist
print('onpick1 text:', text.get_text())
print("List of the child Artists of this Artist \n",
*list(fig.get_children()), sep ="\n")
fig.suptitle('matplotlib.figure.Figure.get_children()\
function Example\n\n', fontweight ="bold")
plt.show()
输出:
List of the child Artists of this Artist
Rectangle(xy=(0, 0), width=1, height=1, angle=0)
AxesSubplot(0.125, 0.11;0.775x0.77)
例 2:
# Implementation of matplotlib function
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.patches import Ellipse
NUM = 200
ells = [Ellipse(xy = np.random.rand(2) * 10,
width = np.random.rand(),
height = np.random.rand(),
angle = np.random.rand() * 360)
for i in range(NUM)]
fig, ax = plt.subplots(subplot_kw ={'aspect': 'equal'})
for e in ells:
ax.add_artist(e)
e.set_clip_box(ax.bbox)
e.set_alpha(np.random.rand())
e.set_facecolor(np.random.rand(4))
ax.set_xlim(3, 7)
ax.set_ylim(3, 7)
print("List of the child Artists of this Artist \n",
*list(fig.get_children()), sep ="\n")
fig.suptitle('matplotlib.figure.Figure.get_children() \
function Example\n\n', fontweight ="bold")
plt.show()
输出:
List of the child Artists of this Artist
Rectangle(xy=(0, 0), width=1, height=1, angle=0)
AxesSubplot(0.125, 0.11;0.775x0.77)
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