[tei-council] Further update on PH

[Lou Burnard]

Syd Bauman wrote:
> LB> It seems a little misleading to describe this as
> LB> "underspecified".
>
> Then why doesn't it tell me how to specify the latitude and
> longitude? I don't even know what units, let alone what notation, to
> use. (Afaik WGS 84 doesn't say.)
>   

Maybe "numbers" is a bit vague, but the experts we consulted was pretty 
clear that the content of geo should be just that -- two sequences of 
decimal digits, no units, no fancy notation. Thats what every GIS system 
I've looked at uses too, so makes sense to me. Think KML.

> Currently the fact all of the following (and lots of other variants)
> are correct impairs interoperability in order to allow flexibility
> that, I bet, no one cares for.
>
>    <!-- DM: -->
>    <geo>41&#xB0; 48.474' N, 71&#xB0; 15.562' W</geo>
>    <geo>41&#xB0;48.474'N 71&#xB0;15.562'W</geo>
>    <geo>41d48.474m N, 71d15.562m W</geo>
>    <geo>41&#xB0; 48.474', -71&#xB0; 15.562'</geo>
>    <geo>41&#xB0;48.474' -71&#xB0;15.562'</geo>
>    <!-- DMS or sexagesimal: -->
>    <geo>41&#xB0; 48' 28.44" N, 71&#xB0; 15' 33.72" W</geo>
>    <geo>41 48 28.44 N, 71 15 33.72  W</geo>
>    <geo>41&#xB0; 48' 28.44", -71&#xB0; 15' 33.72"</geo>
>    <geo>41 48 28.44, -71 15 33.72</geo>
>    <!-- DD (all with commas; could be without): -->
>    <geo>41.8079 N, 71.25937 W</geo>
>    <geo>41.8079&#xB0; N, 71.25937&#xB0; W</geo>
>    <geo>41.8079, -71.25937</geo>
>    <geo>41.8079&#xB0;, -71.25937&#xB0;</geo>
>    <!-- Radians (I think I have this right, but not sure): -->
>    <geo>0.72969 rad, -1.2437 rad</geo>
>    <geo>0.72969 rad N, 1.2437 rad W</geo>
>
> (Anywhere I've used "'" above could also be U+2032; anywhere I've
> used '"' above could also be U+2033.)
>
> Indeed, one could express the details of the format in prose inside
> the associated <geoDecl>, but it would be much more helpful if it
> were a controlled vocabulary.
>
>
>   
>> It ought to say something like "within the section of the parent
>> declaring element" rather than "within a document" though, I
>> suppose, since geoDecl is declarable.
>>     
>
> True enough.
>
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