Skip to content

mathtext support for \phantom, \llap, \rlap for faking text metrics. #30908

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Open
anntzer wants to merge 3 commits into
base: text-overhaul
Choose a base branch
from
Open

mathtext support for \phantom, \llap, \rlap for faking text metrics. #30908

anntzer wants to merge 3 commits into from

Conversation

@anntzer
Copy link
Contributor

@anntzer anntzer commented Dec 29, 2025 •
edited
Loading

Closes #28211 (although it doesn't implement \smash, which isn't really necessary). Goes on top of #30059 (some details of mathtext raster rendering are different prior to #30059 and I don't think it's really worth figuring out how to exactly write the code compatible with the old version).

The example in the given issue is supported via

from pylab import *
fig = figure(layout="constrained")
sfs = fig.subfigures(2)
ax0 = sfs[0].add_subplot()
ax0.plot([1, 2], label=r"$\rlap{\text{foo}}\phantom{\text{a longer label}}$")
sfs[0].legend(loc="outside right upper")
ax1 = sfs[1].add_subplot()
ax1.plot([1, 2], label="foo")
ax1.plot([2, 1], label="a longer label")
sfs[1].legend(loc="outside right upper")
show()
image

anntzer and others added 3 commits December 18, 2025 14:48
@anntzer @QuLogic
Drop the FT2Font intermediate buffer
3bec444 
Directly render FT glyphs to the Agg buffer.  In particular, this
naturally provides, with no extra work, subpixel positioning of glyphs
(which could also have been implemented in the old framework, but would
have required careful tracking of subpixel offets).

Note that all baseline images should be regenerated.  The new APIs added
to FT2Font are also up to bikeshedding (but they are all private).
@QuLogic
Update test images for previous change
fea96d8
@anntzer
mathtext support for \phantom, \llap, \rlap for faking text metrics.
47097cb
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

No reviews

Assignees

No one assigned

Labels

backend: agg topic: mplot3d topic: text/fonts topic: text/mathtext topic: text

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.

2 participants

@anntzer @QuLogic