- From: Jeff Meyer <jeff@gwhat.org>
- Date: Mon, 10 Dec 2012 11:55:15 -0800
- To: "Michael Steidl (IPTC)" <mdirector@iptc.org>
- Cc: public-vocabs@w3.org
- Message-ID: <CAA1fFewAZokB=9-KVQNq7GcZoykGkO7Ss=O_M0pCFN=2Nt7MuQ@mail.gmail.com>
Hi Michael - Thanks for the feedback - very interesting to see the IPTC link. I'm not sure dateline fills the need, as it is a text property. Is it possible to define dateline as a geocoordinate? http://schema.org/GeoCoordinates Using a geocoordinate would help accomodate current digital pictures, many of which have this information built into their EXIF data. Azimuth is also critical, as even a basic dateline in a city (corner of 4th and Vine) wouldn't tell me which direction the picture was looking - e.g. assuming E-W and N-S street directions, "looking East down Vine from 4th," or even "looking at the NW corner of 4th & Vine from the SE corner of 4th & Vine." For historical photographs, this can help software engines build historical perspectives and composites much more quickly. Another new guy question - is there a reason "MediaObject" is defined as something on the web? I would think schemas are trying to describe items in the real world, even if they are not available on the web. Thanks! Jeff On Mon, Dec 10, 2012 at 4:55 AM, Michael Steidl (IPTC) <mdirector@iptc.org>wrote: > Hi Jeff**** > > ** ** > > Re “creationLocation”: actually the property you request exists – but not > as requested by you.**** > > The facts:**** > > **- **The NewsArticle class of schema.org ( > http://schema.org/NewsArticle) has a property named dateline and the > definition “The location where the NewsArticle was produced.” > The name “dateline” is inherited from an old tradition to start news with > “New York (AP) 10 December 2012 – Mr Doe said …” > which includes the date but also typically the location.**** > > **- **From what you write I infer that you want to apply this > property to photos, which is a MediaObject in general and an ImageObject in > particular. Unfortunately none of these classes has such a dateline or > something similar.**** > > **- **The IPTC Photo Metadata standard has a Location Created > property and it would be great to have an equivalent property in > schema.org. I would like to add that the IPTC standard as another > property: locationShown which defined the place you can see in the picture. > Primarily for nature photos these places (where created, what is shown) > could be quite different. But locationShown can be expressed by using the > about property of the CreativeWork class of schema.org.**** > > ** ** > > The solutions I propose for discussion are:**** > > **a) **Move the dateline up the class hierarchy and make it a > property of CreativeWork > OR**** > > **b) **Add a property locationCreated to the MediaObject class.**** > > ** ** > > Michael**** > > ** ** > > *Michael Steidl* > > Managing Director of the IPTC [mdirector@iptc.org]**** > > International Press Telecommunications Council > Web: www.iptc.org - on Twitter @IPTC <http://www.twitter.com/IPTC>**** > > ** ** > > ** ** > > *From:* Jeff Meyer [mailto:jeff@gwhat.org] > *Sent:* Friday, December 07, 2012 10:25 PM > *To:* public-vocabs@w3.org > *Subject:* New guy questions**** > > ** ** > > Hi - **** > > ** ** > > New guy trying to learn more here.**** > > ** ** > > Looking for where I can go to find answers to questions like:**** > > ** ** > > > Why is there no schema for thing->manmade->structure or > thing->manmade->structure->building? (all the schema seem to want to jump > straight to what type of building, e.g. Thing > Place > CivicStructure)*** > * > > ** ** > > > How do I extend the global schema.org schema to add things like > creationLocation (e.g. where was the photograph taken?) and creationAzimuth > (e.g. which direction was the camera pointing?)?**** > > ** ** > > I realize these are basic questions, but the information at schema.orgseems a bit limited & dead end. For example, I understand that I can extend > schema on my own (http://schema.org/docs/extension.html), but > creationLocation seems to be pretty common and generic & I'd hate to do > stuff differently from the way others are doing it. (e.g. what's the > location for a picture of the Grand Canyon or Mount Everest?).**** > > ** ** > > Do I need to submit proposals at > http://www.w3.org/wiki/WebSchemas/SchemaDotOrgProposals?**** > > ** ** > > Thanks!**** > > Jeff > **** > > ** ** > > -- > Jeff Meyer > Global World History Atlas > www.gwhat.org > jeff@gwhat.org > 206-676-2347 > > **** > -- Jeff Meyer Global World History Atlas www.gwhat.org jeff@gwhat.org 206-676-2347
Received on Monday, 10 December 2012 19:55:49 UTC