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Re: [TTML2] tts:{width,height} rename

From: Nigel Megitt <nigel.megitt@bbc.co.uk>
Date: Tue, 27 Jan 2015 15:30:02 +0000
To: John Birch <John.Birch@screensystems.tv>, David Singer <singer@apple.com>, TTWG <public-tt@w3.org>
Message-ID: <D0ED5F47.19CF8%nigel.megitt@bbc.co.uk>
Maybe inlineLength and blockLength to avoid the width/height confusion?

Nigel


On 27/01/2015 15:27, "John Birch" <John.Birch@screensystems.tv> wrote:

>+1 on the yikes.... !
>
>I understand the intent to reduce confusion, but like David I'm not
>convinced this helps...
>( **If** I was to make a proposal it would be more along the lines of
>inlineWidth and blockHeight ).
>
>Best,
>John
>
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>P Before printing, think about the environment-----Original Message-----
>From: David Singer [mailto:singer@apple.com]
>Sent: 27 January 2015 14:37
>To: TTWG
>Subject: Re: [TTML2] tts:{width,height} rename
>
>yikes
>
>it’s nice if the terms are readable.  Linewidth and Lineheight have some
>… recognition, albeit mostly in writing systems that use horizontal lines
>assembled into vertical blocks.
>
>ipd and bpd are directions, not measurements, aren’t they? and they don’t
>exactly roll off the tongue or leap to mind in terms of recognizability
>
>> On Jan 26, 2015, at 1:01 , Glenn Adams <glenn@skynav.com> wrote:
>>
>> The use of width and height as writing mode relative properties is
>>confusing. Change their names to ipd and bpd, abbreviations for inline
>>progression dimension and block progression dimension, respectively, and
>>document convention that width and height (as well as horizontal and
>>vertical) are always absolute and not writing mode relative. The only
>>exception being that 'height' in lineHeight remains writing mode
>>relative, i.e., specifies the nominal bpd of a line area.
>>
>> Change image to use tts:extent instead of the former tts:{width,height}
>>in order to use absolute axes in expressing explicit image dimensions.
>>
>> Addressed above comments in [1].
>>
>> [1] https://dvcs.w3.org/hg/ttml/rev/69877acd9380

>
>David Singer
>Manager, Software Standards, Apple Inc.
>
>
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Received on Tuesday, 27 January 2015 15:30:36 UTC

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