Commit Graph

4 Commits

Author SHA1 Message Date
Emily Eisenberg
513ae30fe1 Update fonts from the mathjax fonts Docker
Summary:
This incorporates the changes to add a KA copyright, and to generate the woffs
from the ttfs, not the otfs.

Test Plan:
 - Run huxley tests, see very little has changed (it looks like all the images
   shifted back down ~1/2 pixel, the opposite of what happened in ad97dab19c
   when we started making our own woffs, which means we probably are now
   generating woffs the same way fontsquirrel does)

Reviewers: alpert

Reviewed By: alpert

Differential Revision: http://phabricator.khanacademy.org/D12889
2014-09-04 17:54:15 -07:00
Emily Eisenberg
25374ea193 Change the scriptstyle size from 2/3em to 0.7em
Summary:
I don't know why we originally used 2/3em for scriptstyle, but both TeX
and MathJax use 0.7em for the scriptstyle size.

Test Plan:
- Look at huxley tests, make sure everything that changed is due to the change
  in font size

Reviewers: alpert

Reviewed By: alpert

Differential Revision: http://phabricator.khanacademy.org/D12869
2014-09-04 00:56:52 -07:00
Emily Eisenberg
e418fd9ee3 Update metrics using TeX metrics instead of TTF metrics
Summary:
Instead of using the metrics from our generated TTF files, use the fonts that
TeX ships with. Pull the mapping out of the MathJax-dev repo from makeFF to get
the correct mapping of metrics to font characters, and use our own tfm reader to
extract metrics out of the tfm files into a useable format. Add a README and
Makefile rule to make this process easier in the future.

Also remove the silly 0.05em we put on supsubs because our italic correction
works now.

Test Plan:
- Run huxley tests, see that changes are because of font metric changes.
- See that the extension piece of `\bigl |` now extends above the top, as it is
  supposed to.

Reviewers: alpert

Reviewed By: alpert

Differential Revision: http://phabricator.khanacademy.org/D12867
2014-09-03 20:12:00 -07:00
Ben Alpert
a75bf1afc2 Add \scriptspace after superscripts and subscripts
Summary: Plain TeX assigns `\scriptspace=0.5pt`, which is used in Rules 18bcd in the TeXbook's Appendix G.

Test Plan:
- Look at `x^{x^{x_{x_{x_{x_x}}}}}\biggr|`, see a gap that looks similar to the one produced by real TeX.
- Look at the huxley tests, see that they look reasonable. Make sure that all changes to other huxley tests are now correct, and only changed because of this.

Reviewers: emily

Reviewed By: emily

Subscribers: jessie

Differential Revision: http://phabricator.khanacademy.org/D12763
2014-08-29 12:28:43 -07:00