Re: [SMW-devel] additional geographic coordinate input form

[Dan T. <geo...@gm...>]

Thanks for the doc updates/template suggestion & I appreciate you entering
this into the bug tracking system.  I concur with Sergey's observation that
the proposed format is commonly used.  Dan



On 10/16/07, Sergey Chernyshev <
sem...@an...> wrote:
>
> Actually, "38.926832, -77.03201" syntax is quite standard for technical
> presentation of geocoordinates. I agree, that it's very American in using
> "." for decimal separator, but it's standard de-facto (for example, Googl=
e
> uses it in queries and I use it in GvsY tool in URLs:
> http://www.sergeychernyshev.com/maps.html#49.008084,8.403756 ;) ).
>
> Another alternative is to use ";" as separator (I doubt somebody uses it
> as decimal separator) so the result will be like this: "38,926832;
> -77,03201", but I still think that checking if comma splits into only two
> parts and then using previous example is best.
>
>      Sergey
>
>
> On 10/16/07, S Page <in...@sk...> wrote:
>
> > Dan Thomas wrote:
> > > It seems the degree symbol is required for SMW to recognize a
> > geographic
> > > coordinate.  US keyboards typically don't include this symbol making
> > > entry difficult for end users.  I suggest supporting lat/long in
> > > positive/negative decimal degrees as an alternative input form.  e.g.=
;
> > > 38.926832, -77.03201 for Washington, DC.
> >
> > You can enter positive/negative decimal degrees in SMW 1.0 RC1, but
> > you're right that you must provide the degree symbol =B0 or its HTML
> > numeric entity code &#176;.  I filed enhancement bug 11679.
> >
> > I updated http://ontoworld.org/wiki/Type:Geographic_coordinate with, I
> > believe, all the supported characters and separators.  You could tell
> > users to copy and paste then modify a working format from that page.
> >
> > Changing the code to not requiring a degree symbol is tricky.  I think
> > the code needs a degree symbol to give it something to split on.  Note
> > that in some languages comma is also a decimal separator
> > (smw_decseparator in the languages file) so you can't split into two
> > parts on comma.  Is there some other standard compact format for
> > coordinates?  Some tests are at
> > http://ontoworld.org/wiki/Geographic_coordinate_test
> > This isn't a regression from 0.7, it doesn't work there either.
> >
> > As a workaround you could use a template like
> > http://en.wikipedia.org/wiki/Template:Coord and insert the degree
> > symbols in the semantic annotation it generates.
> >
> > You can't use the character entity reference for degree (&deg;) and som=
e
> >
> > other entities and decimal references for minutes and seconds, which
> > seems an accidental oversight.  I came up with a patch to
> > SMW_DV_GeoCoords.php for that.
> >
> > --
> > =3DS Page
> >
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--=20
--
Dan Thomas