tts:writingMode example is not helpful

[aphillips]

https://w3c.github.io/ttml2/spec/ttml2.html#style-attribute-writingMode

The illustration of the rltb writing mode uses unicodeBidi override and direction=rtl to show some English text backwards. This isn't particularly helpful, since it isn't really an effect of writing mode and non-observant readers may not realize that the example has these features turned on in the example. They might therefore attribute the RTL results to the writing mode. I would instead suggest showing the text strongly right aligned, possibly in conjunction with an Arabic or Hebrew translation.

[dae-kim]

I'm not opposed to this suggestion but would like to point out the Note below the illustration:

"In the second paragraph in the above example that targets region r2, the tts:unicodeBidi and tts:direction properties are set to bidiOverride and rtl, respectively, in order to override the normally left-to-right directionality of characters in the Latin script."

[palemieux]

See also #266

[palemieux]

@dae-kim and @aphillips Please review the revised example at writingMode-example.ttml.zip, which is intended to replace the tts:writingMode example.

[r12a]

@palemieux those examples look better to me, thanks. (Still a little western biased because they start with Latin text, but that's probably ok, since it may help people not so familiar with the other scripts.) However the Japanese 万人 is a bit odd. You probably want to use みなさん、こんにちは instead.

[r12a]

[OT] Btw, in case it's helpful some time, i have a set of short phrases that can be used as examples at http://r12a.github.io/scripts/phrases

[dae-kim]

Looks good to me. With or without the Japanese edit.

[palemieux]

Attached is a revised example I plan to use as basis for the PR.
writingMode010.ttml.zip

[r12a]

Thank you for considering this issue. The i18n WG is now closing the pointer to this issue in its review tracker.

[css-meeting-bot]

The Working Group just discussed ttml2#269 tts:writingMode example is not helpful, and agreed to the following resolutions:

• SUMMARY: No further action to take (WG already agreed disposition)

The full IRC log of that discussion

<nigel> Topic: ttml2#269 tts:writingMode example is not helpful
<nigel> github: https://github.com//issues/269
<nigel> Nigel: Pierre proposed a fix for this which was merged, and also added it to imsc-tests.
<nigel> Glenn: We did those updates and i18n closed this in their tracker.
<nigel> .. We closed this back on May 6
<nigel> Nigel: Oh yes we probably shouldn't have since it was an HR comment.
<nigel> SUMMARY: No further action to take (WG already agreed disposition)