Saving Matplotlib graphs to image as full screen

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The method you use to maximise the window size depends on which matplotlib backend you are using. Please see the following example for the 3 most common backends:

import matplotlib.pyplot as plt

plt.figure()
plt.plot([1,2], [1,2])

# Option 1
# QT backend
manager = plt.get_current_fig_manager()
manager.window.showMaximized()

# Option 2
# TkAgg backend
manager = plt.get_current_fig_manager()
manager.resize(*manager.window.maxsize())

# Option 3
# WX backend
manager = plt.get_current_fig_manager()
manager.frame.Maximize(True)

plt.show()
plt.savefig('sampleFileName.png')

You can determine which backend you are using with the command matplotlib.get_backend(). When you save the maximized version of the figure it will save a larger image as desired.

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