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Matplotlib.figure.Figure.get_constrained_layout() in Python

  • Last Updated : 30 Apr, 2020

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The figure module provides the top-level Artist, the Figure, which contains all the plot elements. This module is used to control the default spacing of the subplots and top level container for all plot elements.

matplotlib.figure.Figure.get_constrained_layout() method

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The get_constrained_layout() method of figure module of matplotlib library is used to get whether the constrained layout is being used.

Syntax: get_constrained_layout(self)



Parameters: This method does not accept any parameters.

Returns: This method returns whether the constrained layout is being used.

Below examples illustrate the matplotlib.figure.Figure.get_constrained_layout() function in matplotlib.figure:

Example 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("Value return by get_constrained_layout() :"
       fig.get_constrained_layout())
   
fig.suptitle('matplotlib.figure.Figure.get_constrained_layout() \
function Example\n\n', fontweight ="bold")
  
plt.show()

Output:

Value return by get_constrained_layout() : False

Example 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("Value return by get_constrained_layout() :",
       fig.get_constrained_layout())
   
fig.suptitle('matplotlib.figure.Figure.get_constrained_layout() \
function Example\n\n', fontweight ="bold")
  
plt.show()

Output:

Value return by get_constrained_layout() : False



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