[ttml2] cell metric in tts:textOutline

palemieux has just created a new issue for 
https://github.com/w3c/ttml2:

== cell metric in tts:textOutline ==
In Section 10.2.47:

> When a <length> expressed in cells is used in a tts:textOutline 
value, the cell's dimension in the block progression dimension 
applies. 

Is the intent for for the computed value of an outline thickness 
specified in "c" to depend on writingMode (to determine block 
progression direction)? Note that the example does not provide a value
 for writingMode.

I would think it would be unexpected to have an outline thickness of 
"1c" yield different results across regions depending on writingMode, 
even though cellResolution remains unchanged by definition.

Should the prose read _When a <length> expressed in cells is used in a
 tts:textOutline value, the computed cell height applies._?




Please view or discuss this issue at 
https://github.com/w3c/ttml2/issues/217 using your GitHub account

Received on Wednesday, 2 November 2016 16:06:05 UTC