Matplotlib.axes.Axes.add_patch() in Python Last Updated : 21 Apr, 2020 Comments Improve Suggest changes Like Article Like Report Matplotlib is a library in Python and it is numerical - mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute. matplotlib.axes.Axes.add_patch() Function The Axes.add_patch() function in axes module of matplotlib library is used to add a Patch to the axes' patches; return the patch. Syntax: Axes.add_patch(self, p) Parameters: This method accepts the following parameters. line: This parameter is the Patch to the axes' patches. Return value: This method returns the Patch . Below examples illustrate the matplotlib.axes.Axes.add_patch() function in matplotlib.axes: Example 1: Python3 # Implementation of matplotlib function 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') fig.suptitle('matplotlib.axes.Axes.add_patch() \ function Example\n\n', fontweight ="bold") plt.show() Output: Example 2: Python3 # Implementation of matplotlib function import matplotlib.path as mpath import matplotlib.patches as mpatches import matplotlib.pyplot as plt Path = mpath.Path fig, ax = plt.subplots() pp1 = mpatches.PathPatch( Path([(0, 0), (1, 0), (1, 1), (0, 0)], [Path.MOVETO, Path.CURVE3, Path.CURVE3, Path.CLOSEPOLY]), fc ="none", transform = ax.transData) ax.add_patch(pp1) ax.plot([0.75], [0.25], "go-") fig.suptitle('matplotlib.axes.Axes.add_patch() \ function Example\n\n', fontweight ="bold") plt.show() Output: Comment More infoAdvertise with us Next Article Matplotlib.axes.Axes.add_patch() in Python S SHUBHAMSINGH10 Follow Improve Article Tags : Python Python-matplotlib Practice Tags : python Similar Reads Matplotlib.axes.Axes.matshow() in Python Matplotlib is a library in Python and it is numerical - mathematical extension for NumPy library. 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