Javascript fot the sunrise and the sunset

[Eurydice]

For a given town I search a javascript that gives the hour of the sunset and
the sunrise.
Looks simple but not found up to now on the net

Thanks

email : Dalip at ifrance.com
http://perso.wanadoo.fr/jmrw/

[kaeli]

In article <ce**********@news-reader4.wanadoo.fr>, jm**@ifrance.com
enlightened us with...

For a given town I search a javascript that gives the hour of the sunset and
the sunrise.
Looks simple but not found up to now on the net

No, it's nothing close to simple.
That's meteorological data that changes daily and would not be quite the same
over years. If you actually had all that data in a database, you'd still need
a server-side script to retrieve it (not client-side javascript).

I'd look into a web service from a national agency that keeps track of these
things or some other provider. My guess is that's where such data would
normally come from (i.e. Excite.com's section that has such data). I would
not attempt to keep such data in a DB myself unless the towns I kept track of
numbered less than 10. Even then I'd probably go find it somewhere else.
That'd be hell to keep updated.

For example:
http://ws2.serviceobjects.net/fw/Fas...herByCityState

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[Andrew Urquhart]

*Eurydice* wrote:

For a given town I search a javascript that gives the hour of the
sunset and the sunrise.
Looks simple but not found up to now on the net

Can't help you with the "placename to longitude and latitude" conversion
but you could convert Roger Sinnotts 'cheap and cheerful', 'tried and
tested' Sunup.bas to javascript yourself <URL:
http://skyandtelescope.com/resources/software/programs/sunup.bas> (info:
<URL: http://skyandtelescope.com/resources/software/article_326_1.asp>)
or I can dig out an old conversion I did myself that I have archived
away.
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[Evertjan.]

Andrew Urquhart wrote on 05 aug 2004 in comp.lang.javascript:

*Eurydice* wrote:

For a given town I search a javascript that gives the hour of the
sunset and the sunrise.
Looks simple but not found up to now on the net

Can't help you with the "placename to longitude and latitude" conversion
but you could convert Roger Sinnotts 'cheap and cheerful', 'tried and
tested' Sunup.bas to javascript yourself <URL:
http://skyandtelescope.com/resources/software/programs/sunup.bas> (info:
<URL: http://skyandtelescope.com/resources/software/article_326_1.asp>)
or I can dig out an old conversion I did myself that I have archived
away.

Try this from Steve P. Morse:

<http://www.stevemorse.org/jcal/sunrise.html>

The javascripts are:
city-us.js
city-ca.js
city-xx.js
sunrise.js
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Evertjan.
The Netherlands.
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[Andrew Thompson]

On Thu, 5 Aug 2004 19:38:32 +0200, Eurydice wrote:

For a given town I search a javascript that gives the hour of the sunset and
the sunrise.
Has this become the obsession of some
demented French DHTML tutor?
http://perso.wanadoo.fr/jmrw/

<http://groups.google.com/groups?th=5a894252f86659af>
A fellow Frenchman seems interested in the same script.
...Oh wait, that was you. Why did you repost?

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