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"extent" property on regions

From: Peter B. West <lists@pbw.id.au>
Date: Wed, 02 Feb 2005 18:47:52 +1000
Message-ID: <420093B8.1050305@pbw.id.au>
To: xsl-editors <xsl-editors@w3.org>

The editors,

"6.4.15 fo:region-before" has the following:
<quote>
The block-progression-dimension of the region-viewport-area is 
determined by the extent trait on the fo:region-before formatting object.

The inline-progression-dimension of the region-viewport-area is 
determined by the precedence trait on the fo:region-before.
</quote>

Perhaps that should be
"The dimension of the region-viewport-area corresponding to the 
block-progression-dimension of the page-reference-area is determined by 
the extent trait on the fo:region-before formatting object.

The dimension of the region-viewport-area corresponding to the 
inline-progression-dimension of the page-reference-area is determined by 
the precedence trait on the fo:region-before."

Consider the second case, "reference orientation on the 
simple-page-master is 90", in the diagram 
PageAndRegion-bodyWithOrientationOnPage.gif in "6.4.13 
fo:simple-page-master".  The media-oriented terms "height" and "width" 
are no longer appropriate to discussions of the regions.  If, further, 
the reference-orientation of fo:region-before is 90, the extent property 
would no longer refer to the "block-progression-dimension of the 
region-viewport-area", as I understand the situation.

These comments are relevant the discussions of the other bordering regions.

If this is the case, it has ramifications for '7.26.4 "extent"', which 
includes,
"Specifies the width of the region-start or region-end or the height of 
the region-before or region-after."

Yours faithfully,
-- 
Peter B. West <http://cv.pbw.id.au/>
Project Folio <http://defoe.sourceforge.net/folio/>
Received on Wednesday, 2 February 2005 08:48:00 GMT

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