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Incorrect glyphs selected for angle brackets #18740
Description
Bug report
Bug summary
mathtext sometimes selects incorrect glyphs to display angle brackets.
Code for reproduction
from pylab import *
figtext(.2, .7,
r"$\left<?\right>"
r"\left\langle?\right\rangle$") \
.set_math_fontfamily("custom")
figtext(.2, .3,
r"$\left<\frac{\sum_{0}^{1}}{\sum_{0}^{1}}\right>"
r"\left\langle\frac{\sum_{0}^{1}}{\sum_{0}^{1}}\right\rangle$") \
.set_math_fontfamily("cm")
show()Actual outcome
The glyphs for the small \left<\right> when using "custom" mathtext.fontset and the large \left\langle\right\rangle when using "cm" mathtext.fontset are wrong.
Expected outcome
Correct glyphs.
I have some ideas on how to fix this, but would rather wait for mathtext to go fully private (i.e. 3.6) instead of jumping through hoops and hoops of backcompat layers... (but if anyone else wants to have a go at it before then, please do)
Matplotlib version
- Operating system: fedora
- Matplotlib version: head
- Matplotlib backend (print(matplotlib.get_backend())): agg
- Python version: 38
- Jupyter version (if applicable):
- Other libraries:
Activity
github-actions commented on Aug 28, 2023
This issue has been marked "inactive" because it has been 365 days since the last comment. If this issue is still present in recent Matplotlib releases, or the feature request is still wanted, please leave a comment and this label will be removed. If there are no updates in another 30 days, this issue will be automatically closed, but you are free to re-open or create a new issue if needed. We value issue reports, and this procedure is meant to help us resurface and prioritize issues that have not been addressed yet, not make them disappear. Thanks for your help!
oscargus commented on Aug 28, 2023
The bug is still there and there is a PR for it, so keep it until fixed.
QuLogic commented on Apr 17, 2025
This is a duplicate of #5210.