ENH: Ignore empty text for tightbbox#31285
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QuLogic merged 1 commit intomatplotlib:text-overhaulfrom Mar 12, 2026
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You have to start with the images from the |
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Makes sense, that worked. Images here updated - let me know if I should be retargeting those to |
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No need, I'll take care of updating that branch when this is approved. |
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timhoffm
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Mar 12, 2026
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QuLogic
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Mar 12, 2026
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Sorry, accidentally pushed the wrong commit to strip out the test images from here. Should be good again, and ready for merging, as I've put the new images on the |
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I think your diagnosis was correct - remove_text just sets the strings to empty I think and their existence meant they still had anchor points that were causing the tightbbox to include them. |
wavebyrd
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Mar 13, 2026
…x_empty ENH: Ignore empty text for tightbbox
QuLogic
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Apr 10, 2026
This includes images changes for the following pull requests / commits: * [Fix center of rotation with rotation_mode='anchor'](matplotlib#29199) (c44db77) * [Remove ttconv backwards-compatibility code](matplotlib#30145) (8caff88) * [Remove kerning_factor from tests](matplotlib#29816) (7b4d725) * [Set text hinting to defaults](matplotlib#29816) (8255ae2) * [Update FreeType to 2.13.3](matplotlib#29816) (89c054d) * [Implement text shaping with libraqm](matplotlib#30000) (b0ded3a, 9813523) * [Add language parameter to Text objects](matplotlib#29794) (7ce8eae) * [Fix auto-sized glyphs with BaKoMa fonts](matplotlib#29936) (3ba2c13) * [pdf: Improve text with characters outside embedded font limits](matplotlib#30512) (b70fb88, 6cedcf7) * [Prepare `CharacterTracker` for advanced font features](matplotlib#30608) (8274e17, 70dc388, df670cf, ed5e074) * [Add font feature API to Text](matplotlib#29695) (972a688) * [Fix spacing in r"$\max f$"](matplotlib#30715) (4a99a83) * [Implement libraqm for vector outputs](matplotlib#30607) (bd17cd4) * [Drop the FT2Font intermediate buffer](matplotlib#30059) (9d7d7b4) * [Rasterize dvi files without dvipng](matplotlib#30039) (7627118) * [Update bundled FreeType and HarfBuzz libraries](matplotlib#30938) (a161658, 9619bcc) * [Fix positioning of wide mathtext accents](matplotlib#31069) (c2fa7ba) * [Refactor RendererAgg.draw_{mathtext,text,tex} to use same base algorithm](matplotlib#31085) (931bcf3) * [Implement TeX's fraction and script alignment](matplotlib#31046) (94ff452, 4bfa0f9, 1cd8510) * [Fix confusion between text height and ascent in metrics calculations](matplotlib#31107) (60f2310) * [mathtext: Fetch quad width & axis height from font metrics](matplotlib#31110) (692df3f, 383028b) * [mathtext: add mathnormal and distinguish between normal and italic family](matplotlib#31121) (a6913f3) * [ENH: Ignore empty text for tightbbox](matplotlib#31285) (d772043) * [Drop axis_artist tickdir image compat, due to text-overhaul merge](matplotlib#31281) (2057583) * [text: Use font metrics to determine line heights](matplotlib#31291) (3ab6a27, d961462, 97f4943) * [ps/pdf: Override font height metrics to support AFM files](matplotlib#31371) (e0913d4) * [TST: Cleanup back-compat code in tests touched by text overhaul](matplotlib#31295) (7c33379) * [TST: Set tests touched by text overhaul to mpl20 style](matplotlib#31300) (41c4d8d)
This was referenced Apr 19, 2026
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PR summary
This ignores empty or hidden text for tightbbox, dedicating more space to the plot in tight & constrained layouts. Some of the constrained layout images are larger for reasons I don't fully understand, but it's probably something to do with those invisible text bboxes being used to calculate internal padding.
Targeting the text-overhaul branch.
@QuLogic when I regenerate baseline images, it adds a much larger diff than expected. How are you handling those on this branch?
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