Let dpi be set when saving JPEG using Agg backend #9066
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tacaswell
approved these changes
Aug 21, 2017
WeatherGod
reviewed
Aug 21, 2017
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| if 'quality' not in options: | ||
| options['quality'] = rcParams['savefig.jpeg_quality'] | ||
| # Set the same dpi in both x and y directions | ||
| options['dpi'] = (options['dpi'], options['dpi']) |
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If the dpi wasn't set from the options, should it fetch it from the rcparams? (or does that already happen in building kwargs)?
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It is probably better to be defensive about it if 'dpi' in options
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Does pillow provide access to a way to access the meta-data? Maybe use |
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@dstansby This seems to need a rebase. |
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Conflict is from #9071 |
Check that dpi is in options
WeatherGod
approved these changes
Aug 25, 2017
anntzer
reviewed
Sep 9, 2017
| plt.plot([0, 1, 2], [0, 1, 0]) | ||
| plt.savefig('test.jpg', dpi=200) | ||
| im = Image.open("test.jpg") | ||
| assert im.info['dpi'] == (200, 200) |
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This should delete test.jpg after it is done (or, more simply, just write the file to a bytesio).
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Partially fixes (for the Agg backend) #9035. Not sure if there's a test I can put in, but I have checked that preview on macOS reports the correct dpi when I manually change the dpi.