draw:frame question

<draw:frame> has attributes like svg:x svg:y svg:width and svg:height, but it's not clear
what the position is relative to.

For a frame that is anchored to a page, it's the graphics style that can specify
style:vertical-rel="page"
and/or
text:anchor-type="page" text:anchor-page-number="1" 

Is this as intended? The content/style separation seems a bit surprising to me
if the content data alone is ambiguous (svg:y="2cm" ... from where?).

P.S.: For a frame anchored to a character, should x and y be specified, or 
left to the renderer to determine?

-- 
David Faure, , sponsored by Trolltech to work on KDE,
Konqueror (http://www.konqueror.org), and KOffice (http://www.koffice.org).
On holidays between 24/07 and 07/08.