How to use pyplot.arrow or patches.Arrow in matplotlib?

To use pyplot.arrow or patches.Arrow() in matplotlib, we can take the following steps −

• Set the figure size and adjust the padding between and around the subplots.
• Initialize four variables, x_tail, y_tail, x_head and y_head.
• Create a figure and a set of subplots.
• Get a fancy arrow instance.
• Add an artist (step 4) using add_patch() method.
• To display the figure, use show() method.

Example

from matplotlib import pyplot as plt, patches as mpatches

plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True

x_tail = 0.1
y_tail = 0.1
x_head = 0.9
y_head = 0.9

fig, ax = plt.subplots()

arrow = mpatches.FancyArrowPatch((x_tail, y_tail), (x_head, y_head), mutation_scale=100, color='green')
ax.add_patch(arrow)

plt.show()

Output