Python中的matplotlib.artist.artist.set_GID

原文:https://www . geesforgeks . org/matplotlib-artist-artist-set _ GID-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 . set _ GID()方法

matplotlib 库的艺术家模块中的 set_gid()方法用于设置艺术家的(组)id。

句法: 艺术家。 set_gid(self，gid)

参数:此方法只接受一个参数。

• gid: 这个参数是 gid 给出的字符串。

返回:该方法不返回值。

以下示例说明了 matplotlib . artist . artist .set _ GID()在 matplotlib 中的功能:

例 1:

# Implementation of matplotlib function
from matplotlib.artist import Artist
import numpy as np
import matplotlib.pyplot as plt
y, x = np.mgrid[:5, 1:6]
poly_coords = [
    (0.25, 2.75), (3.25, 2.75),
    (2.25, 0.75), (0.25, 0.75)
]
fig, ax = plt.subplots()
cells = ax.plot(x, y, x + y, color='green')
ax.add_patch(
    plt.Polygon(poly_coords,
                color='forestgreen',
                alpha=0.5)
)
ax.margins(x=0.1, y=0.05)
ax.set_aspect('equal')
for i, t in enumerate(ax.patches):
    Artist.set_gid(t, 'patch_% d' % i)
fig.suptitle("""matplotlib.artist.Artist.set_gid()
function Example""", fOntweight="bold")
plt.show()


输出:

例 2:

# Implementation of matplotlib function
from matplotlib.artist import Artist 
import numpy as np 
import matplotlib.pyplot as plt 
fig, ax = plt.subplots() 
circle = plt.Circle((0, 0), 5, fc ='blue') 
rect = plt.Rectangle((-5, 10), 10, 5, fc ='green') 
ax.add_patch(circle) 
ax.add_patch(rect) 
circle_tip = ax.annotate('This is a blue circle.', 
            xy =(0, 0), 
            xytext =(30, -30), 
            textcoords ='offset points', 
            color ='w', 
            ha ='left', 
            bbox = dict(boxstyle ='round, pad =.5',  
                        fc =(.1, .1, .1, .92), 
                        ec =(1., 1., 1.),  
                        lw = 1, 
                        zorder = 1), 
            ) 
rect_tip = ax.annotate('This is a green rectangle.', 
            xy =(-5, 10), 
            xytext =(30, 40), 
            textcoords ='offset points', 
            color ='w', 
            ha ='left', 
            bbox = dict(boxstyle ='round, pad =.5', 
                        fc =(.1, .1, .1, .92),  
                        ec =(1., 1., 1.),  
                        lw = 1, 
                        zorder = 1), 
            ) 
for i, t in enumerate(ax.patches): 
    Artist.set_gid(t, 'patch_% d'% i) 
for i, t in enumerate(ax.texts): 
    Artist.set_gid(t, 'tooltip_% d'% i) 
ax.set_xlim(-30, 30) 
ax.set_ylim(-30, 30) 
ax.set_aspect('equal') 
fig.suptitle("""matplotlib.artist.Artist.set_gid()
function Example""", fOntweight="bold")
plt.show()


输出: