--- a/ttml1/spec/ttml1-changes.html Tue Aug 27 12:14:15 2013 -0600
+++ b/ttml1/spec/ttml1-changes.html Tue Aug 27 12:30:56 2013 -0600
@@ -74,25 +74,31 @@
tt element, since it doesn't support TTS style properties, and since style content
style inheritance stops at body and region style inheritance stops at region.
-* In 8.2.9, improve compatibility with CSS and XSL-FO implementations by interpreting
- 'normal' line height as 120% (1.2 multiplier) of relevant font size instead of 100%
- (1.0 multiplier).
-
* In 8.2.9, elaborate semantics for resolving percentage font size on region element,
in which case computed cell size is used as a reference.
* In 8.2.9, elaborate note that explains use of single cell-based length to also include
case of two cell-based lengths.
+* In 8.2.9, add note clarifying the meaning of closest supported value.
+
* In 8.2.12, correct typo where "initial" value was written, but "computed" value
intended.
* In 8.2.12, clarify that the interpretation of "normal" is scoped by descendants in a
intermediate synchronic document.
+* In 8.2.12, improve compatibility with CSS and XSL-FO implementations by interpreting
+ 'normal' line height as 120% (1.2 multiplier) of relevant font size instead of 100%
+ (1.0 multiplier).
+
* In 8.2.13, correct typo where "initial" value was written, but "computed" value
intended.
+* In 8.3.1, add note clarifying the meaning of closest supported value.
+
+* In 8.3.2, add note clarifying the meaning of closest supported value.
+
* In 8.4.2.1, add note clarifying that the body element, and not the tt element, is the
outermost element from which content style inheritance occurs.
--- a/ttml1/spec/ttml1.xml Tue Aug 27 12:14:15 2013 -0600
+++ b/ttml1/spec/ttml1.xml Tue Aug 27 12:30:56 2013 -0600
@@ -4278,6 +4278,10 @@
then a presentation processor must interpret the attribute as if the closest supported value were
specified.</p>
<note role="elaboration">
+<p>In this context, the phrase <emph>closest supported value</emph> means the value for which the Euclidean distance between
+the computed font size and the supported font size is minimized.</p>
+</note>
+<note role="elaboration">
<p>The expression <code>1c</code> means one cell, where <code>'c'</code> expresses
the <emph>cell</emph> length unit as defined by <specref ref="style-value-length"/>.
When a single <length> is expressed using cell units, then it refers to the height of
@@ -6077,6 +6081,10 @@
<p>If a presentation processor does not support a specific,
valid opacity value, then it must interpret it as being equal to the
closest supported value.</p>
+<note role="elaboration">
+<p>In this context, the phrase <emph>closest supported value</emph> means the value for which the Euclidean distance between
+the computed opacity and the supported opacity is minimized.</p>
+</note>
</div3>
<div3 id="style-value-color">
<head><color></head>
@@ -6134,6 +6142,10 @@
<p>If a presentation processor does not support a specific,
valid color or alpha value, then it must interpret it as being equal
to the closest supported value.</p>
+<note role="elaboration">
+<p>In this context, the phrase <emph>closest supported value</emph> means the value for which the Euclidean distance between
+the computed color or alpha and the supported color or alpha in the RGB color space is minimized.</p>
+</note>
</div3>
<div3 id="style-value-digit">
<head><digit></head>
--- a/ttml2/spec/ttml2.xml Tue Aug 27 12:14:15 2013 -0600
+++ b/ttml2/spec/ttml2.xml Tue Aug 27 12:30:56 2013 -0600
@@ -4487,6 +4487,10 @@
then a presentation processor must interpret the attribute as if the closest supported value were
specified.</p>
<note role="elaboration">
+<p>In this context, the phrase <emph>closest supported value</emph> means the value for which the Euclidean distance between
+the computed font size and the supported font size is minimized.</p>
+</note>
+<note role="elaboration">
<p>The expression <code>1c</code> means one cell, where <code>'c'</code> expresses
the <emph>cell</emph> length unit as defined by <specref ref="style-value-length"/>.
When a single <length> is expressed using cell units, then it refers to the height of
@@ -6388,6 +6392,10 @@
<p>If a presentation processor does not support a specific,
valid opacity value, then it must interpret it as being equal to the
closest supported value.</p>
+<note role="elaboration">
+<p>In this context, the phrase <emph>closest supported value</emph> means the value for which the Euclidean distance between
+the computed opacity and the supported opacity is minimized.</p>
+</note>
</div3>
<div3 id="style-value-border-color">
@@ -6520,6 +6528,10 @@
<p>If a presentation processor does not support a specific,
valid color or alpha value, then it must interpret it as being equal
to the closest supported value.</p>
+<note role="elaboration">
+<p>In this context, the phrase <emph>closest supported value</emph> means the value for which the Euclidean distance between
+the computed color or alpha and the supported color or alpha in the RGB color space is minimized.</p>
+</note>
</div3>
<div3 id="style-value-digit">
<head><digit></head>