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Matplotlib.artist.Artist.get_gid() in Python

  • Last Updated : 15 May, 2020

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Artist class contains Abstract base class for objects that render into a FigureCanvas. All visible elements in a figure are subclasses of Artist.

Matplotlib.artist.Artist.get_gid() Method

The get_gid() method in artist module of matplotlib library is used to get the group id.

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Syntax: Artist.get_gid(self)



Parameters: This method does not accepts any parameter.

Returns: This method return the group id.

Below examples illustrate the matplotlib.artist.Artist.get_gid() function in matplotlib:

Example 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)
    print("Value Return :", Artist.get_gid(t))
  
fig.suptitle("""matplotlib.artist.Artist.get_gid()
function Example""", fontweight="bold")
  
plt.show()

Output:

Value Return : patch_ 0

Example 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), 
            
  
print("Value Return :"
for i, t in enumerate(ax.patches): 
    Artist.set_gid(t, 'patch_% d'% i)
    print(Artist.get_gid(t)) 
    
for i, t in enumerate(ax.texts): 
    Artist.set_gid(t, 'tooltip_% d'% i)
    print(Artist.get_gid(t)) 
    
ax.set_xlim(-30, 30
ax.set_ylim(-30, 30
ax.set_aspect('equal'
  
fig.suptitle("""matplotlib.artist.Artist.get_gid()
function Example""", fontweight="bold")
  
plt.show()

Output:

Value Return :
patch_ 0
patch_ 1
tooltip_ 0
tooltip_ 1



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