- From: Bob Morris <morris.bob@gmail.com>
- Date: Mon, 10 Dec 2012 22:45:01 -0500
- To: Robert Sanderson <azaroth42@gmail.com>
- Cc: public-openannotation <public-openannotation@w3.org>
Are we talking only about text-based documents here, or in general resources that have some kind of "geography"? For example, modern digital representation of maps support-and need- selectors that are unions of polygons, and there are widely used standards for their specification. See http://www.opengeospatial.org/standards/is. JPEG2000 can encode Regions of Interest (ROIs) of arbitrary polygons and ellipses. In general many image serializations and their application support complex ROIs. I suppose there is little interest in annotations of medical images that could not support only rectangular selectors. Bob Morris On Mon, Dec 10, 2012 at 3:54 PM, Robert Sanderson <azaroth42@gmail.com> wrote: > > Dear all, > > Recently in a matrix of functionalities provided by different annotation > systems, I saw an entry: > * Point Based Selection > > This was distinguished as a single point in an image (eg x,y but 0 w and h) > or a single position in a text stream (eg a selector with an offset, but 0 > length) > > Is it important in the Open Annotation model to have Point selectors, or > should we have a recommendation in the specification to use the range/area > selectors with 0 height/width/length? > > Thanks for your thoughts on this! > > Rob > > > -- Robert A. Morris Emeritus Professor of Computer Science UMASS-Boston 100 Morrissey Blvd Boston, MA 02125-3390 IT Staff Filtered Push Project Harvard University Herbaria Harvard University email: morris.bob@gmail.com web: http://efg.cs.umb.edu/ web: http://etaxonomy.org/mw/FilteredPush http://www.cs.umb.edu/~ram === The content of this communication is made entirely on my own behalf and in no way should be deemed to express official positions of The University of Massachusetts at Boston or Harvard University.
Received on Tuesday, 11 December 2012 03:45:29 UTC