[jats-list] encoding width or height of inline-graphic

["Imsieke, Gerrit, le-tex gerrit.imsieke@xxxxxxxxx" <jats-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

Hi JATS/BITS/STS people,

How do you encode widths or heights of <graphic> and <inline-graphic> 
onjects?

I'm primarily interested in conveying the desired widths or heights to a 
renderer, in units such as em, mm, %, or px, or as unitless decimal numbers.

The <inline-graphic> objects aren't characters, so I can't use 
private-char/glyph-data/@x-size etc.

Or asked this way: Does anyone know why @x-size and @y-size aren't 
allowed on graphic and inline-graphic? Width and height attributes on 
images and other media objects are common in other vocabularies.

-- Gerrit