[georss] "When" information in georss

[Joshua Lieberman]

Tatsuya,

Good suggestion. My thinking is going this way as well. In parallel  
to georss:where, we can have the two most common time definitions as  
simple tags, and georss:when with GML elements inside for more  
involved definitions. I might prefer the terms "georss:timeStamp" and  
"georss:timePeriod", which would then map exactly onto gml  
definitions, e.g. for

<georss:timePeriod>2006-06-16T07:45:00.000Z 2006-06-16T07:45:00.000Z</ 
georss:timePeriod>

<georss:when>
    <gml:TimePeriod >
        <gml:beginPosition>2006-06-16T07:45:00.000Z</gml:beginPosition>
        <gml:endPosition>2006-06-16T07:45:00.000Z</gml:endPosition>
    </gml:TimePeriod>
</georss:when>

or for <georss:timeStamp>2003-02-13T12:28-08:00</georss:timeStamp>

<georss:when>
    <gml:TimeInstant>
     <gml:timePosition>2003-02-13T12:28-08:00</gml:timePosition>
    </gml:TimeInstant
</georss:when>

The reason for adding time to the georss vocabulary would be to  
specifically locate the "news as feature" in time, rather than some  
other ambiguous time associated with the creation and transmission of  
resources and news feeds.

--The issue of grouped and multiple time-space tags is an important,  
but different and more complicated issue that I'll speak to sometime  
later.

Cheers,

Josh

Joshua Lieberman
mailto:josh at oklieb.net
tel +1 (617) 630-8609
fax: +1 (815) 717-9818


On Aug 7, 2007, at 9:06 AM, Noyori Tatsuya wrote:

> I like simple georss. I think we need more simple WHEN element like
> the following.
>
> dateTime:
> <georss:dateTime>2003-02-13T12:28-08:00</georss:dateTime>
>
> period:
> <georss:period>2003-02-13T12:28-08:00 2003-02-13T12:30-08:00</ 
> georss:period>
>
>
> Moreover, I think we need GROUP element for multiple locations and
> time like the following.
>
> <georss:group>
>   <georss:dateTime>2007-08-07T00:00-08:00</georss:dateTime>
>   <georss:point>45.256 -71.92</georss:point>
>   <xhtml:div>sunny</xhtml:div>
> </georss:group>
> <georss:group>
>   <georss:dateTime>2007-08-07T03:00-08:00</georss:dateTime>
>   <georss:point>45.256 -71.92</georss:point>
>   <xhtml:div>cloudy</xhtml:div>
> </georss:group>
> <georss:group>
>   <georss:dateTime>2007-08-07T06:00-08:00</georss:dateTime>
>   <georss:point>45.256 -71.92</georss:point>
>   <xhtml:div>rainy</xhtml:div>
> </georss:group>
>
> If you want to summarize duplicated elements, you can do as follows.
>
> <georss:group>
>   <georss:point>45.256 -71.92</georss:point>
>   <georss:group>
>     <georss:dateTime>2007-08-07T00:00-08:00</georss:dateTime>
>     <xhtml:div>sunny</xhtml:div>
>   </georss:group>
>   <georss:group>
>     <georss:dateTime>2007-08-07T03:00-08:00</georss:dateTime>
>     <xhtml:div>cloudy</xhtml:div>
>   </georss:group>
>   <georss:group>
>     <georss:dateTime>2007-08-07T06:00-08:00</georss:dateTime>
>     <xhtml:div>rainy</xhtml:div>
>   </georss:group>
> </georss:group>
>
> This is good idea, isn't it?
>
> -- 
> Tatsuya
> _______________________________________________
> georss mailing list
> georss at lists.eogeo.org
> http://lists.eogeo.org/mailman/listinfo/georss

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.eogeo.org/pipermail/georss/attachments/20070807/f32290d1/attachment.html