W3C home > Mailing lists > Public > public-css-archive@w3.org > February 2019

Re: [csswg-drafts] [css-writing-modes] baseline tables figures are confusing, do not correspond to OTF BASE table (#3439)

From: Dave Cramer via GitHub <sysbot+gh@w3.org>
Date: Wed, 27 Feb 2019 00:30:10 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-467672607-1551227409-sysbot+gh@w3.org>
Here's a sketch as I'm trying to figure out what's going on

<img width="850" alt="baselines" src="https://user-images.githubusercontent.com/5687700/53456364-ffe37680-39e2-11e9-91c8-dcdb51815878.png">

@macnmm, so we'd set the ideographic baseline to -120 because of the IDEO baseline value from the metrics, and then add 1000 to that to get the embox top? In this case that matches all the ascent values, but that doesn't appear to be true all the time. 

I have some CJK fonts where ascent + descent does not equal the units per em (Arial Unicode MS), but I haven't found one with a base table yet. 


-- 
GitHub Notification of comment by dauwhe
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/3439#issuecomment-467672607 using your GitHub account
Received on Wednesday, 27 February 2019 00:30:11 UTC

This archive was generated by hypermail 2.4.0 : Tuesday, 5 July 2022 06:41:44 UTC