[Fwd: Adjacent edges in 4.2.5 Stacking Constraints]

-------- Original Message --------
Subject: Adjacent edges in 4.2.5 Stacking Constraints
Date: Mon, 22 Jan 2001 22:47:12 +1000
From: "Peter B. West" <pbwest@powerup.com.au>
Reply-To: pbwest@powerup.com.au
Organization: Dis
To: fop-dev@xml.apache.org
References:
<3A681DEA.18886.840F8E@localhost><3A6A8DBD.CF39F0F2@powerup.com.au>
<3.0.6.32.20010121144340.007ff600@chebucto.ns.ca>

A question about the definition of adjacent edges in 4.2.5.

The following definitions refer to the block-stacking-constraints.gif
image.  (Wouldn't it be useful to have numbered figures?  Wouldn't it be
useful to have an index?)

Adjacent Edges with Block-stacking
When A and B have a block-stacking constraint, the adjacent edges of A
and B are an ordered pair recursively defined as:
    * In case 1, the before-edge of the content-rectangle of A and the
before-edge of the allocation-rectangle of B.
    * In case 2, the after-edge of the content-rectangle of A and the
after-edge of the allocation-rectangle of B.

I don't have much of a grasp of this section, but shouldn't case 2 read:
    * In case 2, the after-edge of the allocation-rectangle of A and the
after-edge of the content-rectangle of B?

I.e., for contained areas, the appropriate relationship is between the
content-rectangle of the containing area, and the allocation-rectangle
of the contained area?

Peter
-- 
Peter B. West  pbwest@powerup.com.au  http://powerup.com.au/~pbwest
"Lord, to whom shall we go?"