[tei-council] links into images

[Lou Burnard]

I finally got round to reading chapter SA (on linking and alignment) on 
one of the many train journeys I took last week, and took the 
opportunity of tidying up some of the new material therein. In the 
process however I also reviewed the old material, and found myself 
wondering seriously how much of it should be changed. I have several 
suggestions, of which more when Syd's had a chance to digest the 
revisions made so far, but for the moment, I would like to ask council's 
opinion on one specific matter. (This is probably aimed mostly at Dot 
and Conal, but anyone who has a view should chip in)

Here's the question. There is an extended example in this chapter 
showing how linking and alignment are supposed to work, the climax of 
which is a <link> element used to align sentences in English, sentences 
in Latin  and parts of a graphic that illustrate the sentence -- it's 
the famous Comenius example.  In Ps 1 to 4, the link into the graphic 
was done by means of the late lamented TEI extended pointer syntax, 
which allowed you to specify arbitrary access methods to address e.g. 2d 
spaces in a bitmap.  But now that we don't have that, what should we 
recommend instead? I'm guessing that I can do this in SVG. So how do I 
revise the example in this chapter to do that?

The section I am looking at is "14.4.3 A Three-way Alignment" in 
http://www.tei-c.org/release/doc/tei-p5-doc/html/SA.html#SACS

Creative suggestions welcomed!