Created
July 28, 2023 01:04
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A contextmanager that force the fixed width image output in jupyter notebook
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from contextlib import contextmanager | |
import matplotlib.pyplot as plt | |
import base64 | |
from io import BytesIO | |
from IPython.display import HTML, display | |
@contextmanager | |
def dp(width=600, dpi=300): | |
def display_figure(): | |
# Save the current figure as a PNG image in memory | |
png_image = BytesIO() | |
plt.gcf().savefig(png_image, format='png', dpi=dpi) | |
# Rewind to the start of the file | |
png_image.seek(0) | |
# Create a base64 encoding of the image | |
png_image_b64_string = "data:image/png;base64," | |
png_image_b64_string += base64.b64encode(png_image.read()).decode('utf8') | |
# Close the figure | |
plt.close(plt.gcf()) | |
# Display the image in an HTML img tag with a specific width | |
display(HTML(f'<img src="{png_image_b64_string}" width="{width}"/>')) | |
try: | |
yield display_figure | |
finally: | |
pass | |
# with fixed_size_plot(800) as display_plot: | |
# plt.figure(figsize=(10,6)) | |
# plt.plot([0, 1, 2, 3, 4], [0, 1, 4, 9, 16]) | |
# display_plot() |
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