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Matplotlib.figure.Figure.get_dpi() 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_dpi() method

The get_dpi() method of figure module of matplotlib library is used to get the resolution in dots per inch as a float.

Syntax: get_dpi(self)

Parameters: This method does not accept any parameters.

Returns: This method return the resolution in dots per inch as a float.



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

Example 1:




# Implementation of matplotlib function 
import matplotlib.pyplot as plt 
from matplotlib.figure import Figure
import numpy as np 
     
fig = plt.figure(figsize =(5, 4)) 
     
ax = fig.add_axes([0.1, 0.1, 0.8, 0.8])
   
xx = np.arange(0, 2 * np.pi, 0.01
ax.plot(xx, np.sin(xx)) 
  
w = fig.get_dpi()
ax.text(1, 0, "Value Return by get_dpi() : "
        +str(w))
    
fig.canvas.draw()
fig.suptitle('matplotlib.figure.Figure.get_dpi() function \
Example', fontweight ="bold"
  
plt.show()

Output:

Example 2:




# Implementation of matplotlib function 
import matplotlib.pyplot as plt 
from matplotlib.figure import Figure
from mpl_toolkits.axisartist.axislines import Subplot 
import numpy as np 
    
  
fig = plt.figure(facecolor ="lightgreen"
     
ax = Subplot(fig, 111
fig.add_subplot(ax) 
     
ax.axis["left"].set_visible(False
ax.axis["top"].set_visible(False)
  
w = fig.get_dpi()
ax.text(0.2, 0.5, "Value Return by get_dpi() : "
        +str(w),
        fontweight ="bold")
    
fig.canvas.draw()
fig.suptitle('matplotlib.figure.Figure.get_dpi()\
 function Example', fontweight ="bold"
  
plt.show()

Output:

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