On Fri, May 21, 2010 at 8:07 PM, Silvia Pfeiffer <silviapfeiff...@gmail.com> wrote: > However, what exactly happens with a media fragment URI like > http://example.com/picture.png#xywh=160,120,320,240 is not fully > specified in the Media Fragment URI spec. > One thought was to just highlight the area that is specified - similar > to a lightbox - where the other areas in the image/video are darkened. > That follows the idea of fragments being a focus region. > Another thought is to zoom into that area and decode, but not display > the others.
The first idea doesn't make any sense to me as an author. It seems like it would be vastly less useful than the second. It's just a stylistic effect, which you don't even have any control over -- and authors don't like being unable to control style precisely. What I'd expect is the second thing: that URL should behave exactly like a manually-cropped version of picture.png, so you don't have to use positioning hacks or serve a separate cropped file. This would be useful for spriting -- although resource packages, or another HTTP pipelining substitute, sounds like a still better idea.