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/
Reverse my e-mail address to reply by e-mail

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/
Reverse my e-mail address to reply by e-mail

On Wed, 02 Nov 2005 23:39:10 +0000, Jonathan Stott
wrote:

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/

Your function
function updateHeight()
is returning the wrong data.


--
Regards, Paul Herber, Sandrila Ltd. http://www.pherber.com/
Electronics stencils for Visio http://www.electronics.pherber.com/

On Thu, 03 Nov 2005 00:01:37 +0000, Paul K Hudson wrote:

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

I get Latitude (accurately, which is unusual for Google maps) but not
Longitude. There's a clash between the main display for sunset/sunrise,
which shows "GMT +0", but the smaller DST (yes "D") box is ticked, so the
times are in BST not GMT. XEphem gives sunset time about 3 minutes
different, but I don't know which is correct.


Mike

Paul Herber wrote:

Your function
function updateHeight()
is returning the wrong data.

It is now returning the correct data.

--
Jonathan Stott
Canterbury Weather: http://www.canterburyweather.co.uk/
Reverse my e-mail address to reply by e-mail

Mike Causer wrote:

I get Latitude (accurately, which is unusual for Google maps) but not
Longitude. There's a clash between the main display for sunset/sunrise,
which shows "GMT +0", but the smaller DST (yes "D") box is ticked, so the
times are in BST not GMT. XEphem gives sunset time about 3 minutes
different, but I don't know which is correct.

The height problem is fixed. I used "DST" as opposed to "BST" because I
eventually want to cover more than just the UK. Perhaps "Summer Time"
would be better. The box should be checked if the month is April through
October which should be generally right for most (northern hemisphere!)
countries.

--
Jonathan Stott
Canterbury Weather: http://www.canterburyweather.co.uk/
Reverse my e-mail address to reply by e-mail

Jonathan Stott wrote:

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.


Map doesn't show on Konqueror - OK in Firefox, Epiphany, and Opera.
Apparently, from a previous thread, this is a problem Konqueror has with
Google maps. However, there are some HTML errors. Don't know whether they
are relevant to the problem. Try http://validator.w3.org/.

I found moving around the map laborious, even with broadband. It would be an
advantage to be able to centre/zoom on a location by clicking on it.

--
Graham Davis
Bracknell

Graham P Davis wrote:

Map doesn't show on Konqueror - OK in Firefox, Epiphany, and Opera.
Apparently, from a previous thread, this is a problem Konqueror has with
Google maps. However, there are some HTML errors. Don't know whether they
are relevant to the problem. Try http://validator.w3.org/.

OK, there are lots of errors, but they shouldn't stop the page from
working in most browsers. I don't believe that Google Maps work in
Konqueror - I've tested it on the two more popular browsers (FireFox and
Internet Explorer) and it seems to work ok. Perhaps Google will add
support for more browsers soon (even the support for Internet Explorer
is a bit ropey for some things!)

I found moving around the map laborious, even with broadband. It would be an
advantage to be able to centre/zoom on a location by clicking on it.

You can centre the map on a point by double-clicking.

--
Jonathan Stott
Canterbury Weather: http://www.canterburyweather.co.uk/
Reverse my e-mail address to reply by e-mail

All you do is to centre the map on where you are
How?

Height data covers the whole of the maindland UK
It told me the height of the fields just inland from Red Head (80m) were at
0 feet. I could not figure out how to make the map centre on Red Head
itself.

Anne

I found moving around the map laborious, even with broadband. It would
be an
advantage to be able to centre/zoom on a location by clicking on it.

Agreed.

Anne