one of our tests is failing because the output image is sometimes a slightly different size. on linux it is 579x517 pixels and on windows it is 582x520 pixels. i have checked the versions of matplotlib and pandas and they are the same. there are slight differences in matplotlib.rcparams; i've tried changing the parameters that look relevant, but it didn't help.
Is it because the display size is slightly different on the two machines? If I set dpi=99.99 on the savefig on the Windows machine, the output size is 579x517 pixels. I don't want to change this in the application though as it is a bit of a hack just to fix a failing test.
This is the plot function we're using, percentages is a pandas dataframe.
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<pre class="brush:php;toolbar:false;">def plot_and_save(percentages, output_directory, filename, title, legend, x_label, y_label, font_size=16): """Plot data and save figure to file.""" matplotlib.rcParams['font.size'] = font_size ax1 = percentages.plot.bar(color=['#484D7A', '#F6A124']) ax1.grid(which='major', axis='y', color='#4A4A49', alpha=0.1) ax1.set_axisbelow(True) # Puts gridlines below the bars ax1.set(xlabel=x_label, ylabel=y_label, title=title) ax1.legend(legend, framealpha=1) output_path = os.path.join(output_directory, filename) plt.savefig(output_path, bbox_inches='tight') plt.close()
来源：https://stackoverflow.com/questions/67515453/how-to-save-matplotlib-figures-the-same-size-on-different-operating-systems
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