Python 中的 matplotlib . artist . artist . get _ children()
原文:https://www . geesforgeks . org/matplotlib-艺术家-艺术家-get_children-in-python/
【Matplotlib】是 Python 中的一个库，它是 NumPy 库的数字-数学扩展。 艺术家类 包含将渲染到图形画布中的对象的抽象基类。图形中所有可见的元素都是艺术家的子类。
matplotlib . artist . artist . get _ children()方法
matplotlib 库的艺术家模块中的 get_children ()方法用于返回该艺术家的子艺术家列表。
句法: 艺术家。get _ children(self)
参数:此方法不接受任何参数。
返回:该方法返回该艺术家的子艺术家列表。
下面的例子说明了 matplotlib . artist . artist .get _ children()函数在 matplotlib 中的作用:
例 1:
# Implementation of matplotlib function
from matplotlib.artist import Artist
import matplotlib.pyplot as plt
from matplotlib.lines import Line2D
import numpy as np
from numpy.random import rand
fig, ax2 = plt.subplots()
art = ax2.bar(range(10), rand(10), picker = True)
print("List of the child Artists of this Artist \n",
*list(art.get_children()), sep ="\n")
plt.title("""matplotlib.artist.Artist.get_children()
function Example""", fontweight="bold")
plt.show()
输出:
List of the child Artists of this Artist
Rectangle(xy=(-0.4, 0), width=0.8, height=0.58236, angle=0)
Rectangle(xy=(0.6, 0), width=0.8, height=0.305497, angle=0)
Rectangle(xy=(1.6, 0), width=0.8, height=0.650615, angle=0)
Rectangle(xy=(2.6, 0), width=0.8, height=0.397435, angle=0)
Rectangle(xy=(3.6, 0), width=0.8, height=0.634406, angle=0)
Rectangle(xy=(4.6, 0), width=0.8, height=0.377936, angle=0)
Rectangle(xy=(5.6, 0), width=0.8, height=0.229145, angle=0)
Rectangle(xy=(6.6, 0), width=0.8, height=0.755452, angle=0)
Rectangle(xy=(7.6, 0), width=0.8, height=0.954083, angle=0)
Rectangle(xy=(8.6, 0), width=0.8, height=0.509706, angle=0)
例 2:
# Implementation of matplotlib function
from matplotlib.artist import Artist
import matplotlib.pyplot as plt
import numpy as np
from matplotlib.patches import Ellipse
NUM = 20
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'})
print("List of the child Artists of this Artist \n")
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))
print(*list(ax.get_children()), sep = "\n")
ax.set_xlim(3, 7)
ax.set_ylim(3, 7)
plt.title("""matplotlib.artist.Artist.get_children()
function Example""", fontweight="bold")
plt.show()
输出:
该艺术家的子艺术家列表
椭圆(xy=(4.326855439698613，2.7591364805447203)，宽度=0.3769330255888693，高度=0.09156791653641638，角度=214.69480533893034) 椭圆(xy =(6.39084444414 高度=0.3251963397808111，角度=131.180626549346) 椭圆(xy=(6.719146468170946，3.636051606867032)，宽度= 0.75019420338975
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