Matplotlib.figure.Figure.legend() in Python
Last Updated :
03 May, 2020
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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.
The legend() method figure module of matplotlib library is used to place a legend on the figure.
Python3 1==
Output:
Example 2:
Python3 1==
Output:
matplotlib.figure.Figure.legend() method
Syntax: legend(self, *args, **kwargs) Parameters: This method accept the following parameters that are discussed below:Below examples illustrate the matplotlib.figure.Figure.legend() function in matplotlib.figure: Example 1:Returns: This method returns the matplotlib.legend.Legend instance.
- handles :This parameter is the list of Artists (lines, patches) to be added to the legend.
- labels :This parameter is the list of labels to show next to the artists.
# Implementation of matplotlib function
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
line1, = ax.plot([1, 2, 3],
label ="Line 1",
color ="black",
linewidth = 4,
linestyle =':')
line2, = ax.plot([3, 2, 1],
label ="Line 2",
color ="green",
linewidth = 4)
first_legend = ax.legend(handles =[line1],
loc ='upper center')
ax.add_artist(first_legend)
fig.legend(handles =[line2], loc ='lower center')
fig.suptitle("""matplotlib.figure.Figure.legend()
function Example\n\n""", fontweight ="bold")
plt.show()
# Implementation of matplotlib function
import numpy as np
np.random.seed(19680801)
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
for color in [ 'tab:green', 'tab:blue', 'tab:orange']:
n = 70
x, y = np.random.rand(2, n)
scale = 1000.0 * np.random.rand(n)
ax.scatter(x, y, c = color, s = scale, label = color,
alpha = 0.35)
fig.legend()
ax.grid(True)
fig.suptitle("""matplotlib.figure.Figure.legend()
function Example\n\n""", fontweight ="bold")
plt.show()
