Re: CRS specification (was: Re: ISA Core Location Vocabulary)

Dears,

Based on the discussion on the original thread (see mails [1-5]), I would
kindly ask your feedback on the following proposal:


*Proposed resolution*

Add to the LOCN voc an optional property to specify the CRS of a geometry.
The range of such property can be either a literal (e.g., EPSG:4326), a URN
(e.g., urn:ogc:def:EPSG::4326) or an HTTP URI reference (e.g.,
http://www.opengis.net/def/crs/EPSG/0/4326).


Intentionally, I've not included the following two points, since the
position of the group is still unclear on them:

1. Should the use of HTTP URIs be recommended? BTW, on this, Krzysztof
posted a question that has not been yet answered [1].

2. Should we recommend a specific CRS URI register?

I kindly ask you to use this thread to post any relevant comments.

Thanks!

Andrea

----
[1]http://lists.w3.org/Archives/Public/public-locadd/2013Dec/0022.html
[2]http://lists.w3.org/Archives/Public/public-locadd/2013Dec/0027.html
[3]http://lists.w3.org/Archives/Public/public-locadd/2013Dec/0028.html
[4]http://lists.w3.org/Archives/Public/public-locadd/2013Dec/0029.html
[5]http://lists.w3.org/Archives/Public/public-locadd/2013Dec/0030.html



On Sun, Dec 22, 2013 at 11:13 PM, Raphaël Troncy
<raphael.troncy@eurecom.fr>wrote:

> @Raphaël, could you please provide some more details about the CRS
>> conversion service you are about to publish?
>>
>
> This is a REST service that implements a number of algorithms for doing
> projections between CRS, similar to what the Circé software is doing, but
> implemented as a web-based service, see http://fr.wikipedia.org/wiki/
> Circ%C3%A9_%28logiciel%29 (unfortunately, only in French).
> More details in Jan/Feb when we actually publish the service.
> Best regards.
>
>
>   Raphaël
>
> --
> Raphaël Troncy
> EURECOM, Campus SophiaTech
> Multimedia Communications Department
> 450 route des Chappes, 06410 Biot, France.
> e-mail: raphael.troncy@eurecom.fr & raphael.troncy@gmail.com
> Tel: +33 (0)4 - 9300 8242
> Fax: +33 (0)4 - 9000 8200
> Web: http://www.eurecom.fr/~troncy/
>
>


-- 
Andrea Perego, Ph.D.
European Commission DG JRC
Institute for Environment & Sustainability
Unit H06 - Digital Earth & Reference Data
Via E. Fermi, 2749 - TP 262
21027 Ispra VA, Italy

DE+RD Unit: http://ies.jrc.ec.europa.eu/DE

----
The views expressed are purely those of the writer and may
not in any circumstances be regarded as stating an official
position of the European Commission.