Actually, the desire what to discuss whether such an attribute should be
implimented with CSS or if it was better to add an "EDGE" attribute to
HTML image maps; as this feature is particularly difficult to assign to an image that is not
a background image or positioned with absolute coordinates. I know this
appears at first to be in the domain of CSS; but the image map is much more tightly bound to an image and would make it easier to implement a robust
mapping of a (possibly resizable) pixmap's non-linear "edge" to the edges being used for text wrapping.
In researching this a bit further I found several solutions I was unaware of
(which I added links to in my first cut at an example) which seem to be first-rate
tools; but they also ultimately function by adding many box elements to the page; so
the result is still something similar to my basic example.
Whether done with HTML or CSS or (as I envisioned) with a bit of both,
it seems justified to come up with a cleaner way to implement such an
esthically pleasing feature than stacking many independently sized box
elements and/or depending on ECMAScript.