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.
奥硕企业网站管理系统具有一下特色功能1、双语双模（中英文采用单独模板设计，可制作中英文不同样式的网站）2、在线编辑JS动态菜单支持下拉效果，同时生成中文，英文，静态3个JS菜单3、在线制作并调用FLASH展示动画4、自动生成缩略图，可以自由设置宽高5、图片批量加水印，可以自由设置字体，大小，样式，水印位置（同时支持文字或图片类型水印）6、强大的标签式数据调用，可以调用（新闻，产品，下载，招聘）支持
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', '#F6A124124']) 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
