W3C home > Mailing lists > Public > www-annotation@w3.org > January to June 2001

Re: Photo metadata tool

From: Dan Brickley <danbri@w3.org>
Date: Thu, 17 May 2001 10:56:57 -0400 (EDT)
To: Libby Miller <Libby.Miller@bristol.ac.uk>
cc: Charles McCathieNevile <charles@w3.org>, Yves Lafon <ylafon@w3.org>, www-annotation <www-annotation@w3.org>
Message-ID: <Pine.LNX.4.30.0105171051030.14718-100000@tux.w3.org>
On Thu, 17 May 2001, Libby Miller wrote:

>
> no problem. It was just a tweak in the query.
>
> guess I'll have to get an annotea server first...

IMHO it would be far more interesting to implement the same protocol over
a different codebase rather than install the annotea code here (er, I mean
in Bristol).

The protocol is pretty simple, though the schema used in the annotations
would differ.

http://www.w3.org/2001/Annotea/
	http://www.w3.org/2001/Annotea/User/Papers.html
		http://www.w3.org/2001/Annotea/User/Protocol.html

[[
> >
> > On Thu, 17 May 2001, Libby Miller wrote:
> >
> >
> >   thanks.
> >
> >   you can now ;-)
> >
> >   libby
> >
> >   On Thu, 17 May 2001, Charles McCathieNevile wrote:
> >
> >   > HI, this is pretty cool. Are there interface bits to it so I can search for
> >   > anotations on a particular known image?
> >   >
> >   > Chaals
> >   >
> >
> >
>
	Querying an annotation server

	An annotation server is queried for the URIs of annotations it may hold
	using the GET method. Since the client will most commonly wish to
	query for annotations that have an annotates property naming a specific
	page that the user may currently be viewing, a particular query
	parameter is designated to pass the URI of that page, as shown in Figure
	4.

	GET /annot?w3c_annotates=http://example.com/some/page.html HTTP/1.1
	Host: annotea.example.org
	Accept: application/xml
]]

[[
The query parameter w3c_annotates may be best thought of as an
abbreviation for the longer property name
http://www.w3.org/2000/10/annotation-ns#annotates; that is, this GET is a
short-hand for a query that says "return the names of
resources that are the subjects of RDF statements in which the predicate
is http://www.w3.org/2000/10/annotation-ns#annotates and the
object is http://example.com/some/page.html". The server responds to this
GET request by returning RDF/XML describing the properties of
each annotation that has an annotates relationship to the given URI. In
the first release of our server implementation, we return all the
properties of each annotation including the URI of the body resource.
Figure 5 illustrates a typical response; in this case there is only one
annotation for the specified page.
]]

(etc. -- see pages for full details)

Dan





>
> Libby
>
> On Thu, 17 May 2001, Charles McCathieNevile wrote:
>
> > that was fast. Thank you.
> >
> > So can I get these by querying your annotea server?
> >
> > :)
> >
> > Chaals
Received on Thursday, 17 May 2001 10:57:04 GMT

This archive was generated by hypermail 2.2.0 + w3c-0.30 : Friday, 25 March 2005 11:19:17 GMT