ISSUE-24: subscript and superscript support

script

subscript and superscript support

State:

CLOSED

Product:

TTML2

Raised by:

Pierre-Anthony Lemieux

Opened on:

2008-12-05

Description:

Interoperability with current practice in US captioning has been expressed as a desirable goal, however CEA 708 offers text subscript/ out - no equivalent mechanism exists in DFXP for intermediate animation. Could set font height in a span, but no way to accurately move baseline of character.

Should subscript and superscript be added to DFXP (possibly by a baseline attribute on span)?

Related Actions Items:

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Related emails:

1. Re: [ttml2] Action-369 Action-382 - draft dispositions flattened thread incorporating changes (from nigel.megitt@bbc.co.uk on 2015-03-19)
2. Re: [ttml2] Action-369 - collate smpte issues and draft dispositions (from nigel.megitt@bbc.co.uk on 2015-03-18)
3. Re: [ttml2] Action-369 - collate smpte issues and draft dispositions (from glenn@skynav.com on 2015-03-05)
4. Re: [ttml2] Action-369 - collate smpte issues and draft dispositions (from nigel.megitt@bbc.co.uk on 2015-03-05)
5. Re: [ttml2] Action-369 - collate smpte issues and draft dispositions (from glenn@skynav.com on 2015-03-04)
6. Re: [ttml2] Action-369 - collate smpte issues and draft dispositions (from nigel.megitt@bbc.co.uk on 2015-03-04)
7. Re: [ttml2] Action-369 - collate smpte issues and draft dispositions (from nigel.megitt@bbc.co.uk on 2015-02-25)
8. [ttml2] Action-369 - collate smpte issues and draft dispositions (from nigel.megitt@bbc.co.uk on 2015-02-06)
9. {minutes} TTML Meeting of 24/10/13 (from glenn@skynav.com on 2013-10-24)
10. RE: TTML Agenda for 24/10/13 (from mdolan@newtbt.com on 2013-10-23)
11. TTML Agenda for 24/10/13 (from nigel.megitt@bbc.co.uk on 2013-10-23)
12. {status} [was Re: TTML Agenda for 8/3/12] (from glenn@skynav.com on 2012-03-08)
13. [TTWG] Draft Minutes (was: Re: TTML Agenda for 1/3/12) (from glenn@skynav.com on 2012-03-01)
14. Re: TTML Agenda for 23/2/12 (from geoff_freed@wgbh.org on 2012-02-22)
15. Re: TTML Weekly meetings (from glenn@skynav.com on 2012-02-16)
16. [minutes] teleconference 20090123 (from plh@w3.org on 2009-01-26)

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