I clicked on the height button, it came up with my latitude and longitude!

PKH


"Jonathan Stott" wrote in message
...
I've set up a page on my website which should enable you to find out your
height above sea-level as well as the sunrise/sunset time.

To find it, go to http://www.jstott.me.uk/gmapsgeotools/

All you do is to centre the map on where you are (or where you want to
find out about) and click either the "Get Height" or "Get Sunrise/Sunset"
buttons (after modifying the date/timezone/dst if you want). Height data
covers the whole of the maindland UK and islands up to 60 degrees north,
as well as some parts of Ireland, France, Belgium and Holland.

If you're interested, the height data is derived from the Shuttle Radar
Topography Mission data which has data points every 3 arc seconds between
56 degrees south and 60 degrees north. For the UK, 3 arcseconds works out
at aroundabout 90m. Vertical accuracy is reported to be within 16m - the
height for my location is given as 7m when I'd previously read it off an
OS map as being 8m.

It would be interesting to know about your views on user-friendliness,
other ideas for geographic tools like that (distance between two points?
areas?), apparent accuracy or just plain errors! I already have plans to
display the latitude/longitude at the centre of the map as well as the OS
grid reference.

--
Jonathan Stott
Canterbury Weather: http://www.canterburyweather.co.uk/
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