Afternoon all,

From a few years ago, but in case you didn't see it at the time, kind of
interesting:

http://home.clara.net/praveen/azunderground.htm

And with songs. Makes a change from those bloody doctors.

Also, veering OT, has anyone seen the Multimap redesign? Rather good, i
think. They use a Mercator projection throughout, which means the A-Z and
OS maps are reprojected, and thus have detectably deformed grid lines,
which freaks me out. However, they have a layer which shows the location
of cash machines, so overall, they win.

tom

--
Scheme is simple and elegant *if you're a computer*.

Tom Anderson wrote

Also, veering OT, has anyone seen the Multimap redesign? Rather good,
i
think. They use a Mercator projection throughout, which means the A-Z
and
OS maps are reprojected, and thus have detectably deformed grid
lines,
which freaks me out. However, they have a layer which shows the
location
of cash machines, so overall, they win.

Err, the OS, National Grid etc. use a Mercator projection, Transverse
Mercator though (see the bottom of any OS Map).

--
Mike D

On Fri, 8 Jun 2007, Michael R N Dolbear wrote:

Tom Anderson wrote

Also, veering OT, has anyone seen the Multimap redesign? Rather good, i
think. They use a Mercator projection throughout, which means the A-Z
and OS maps are reprojected, and thus have detectably deformed grid
lines, which freaks me out.

Err, the OS, National Grid etc. use a Mercator projection, Transverse
Mercator though (see the bottom of any OS Map).

DOH! Very good point. They must be using different Mercator projections; i
would guess Multimap is using something that works globally, like
Universal Transverse Mercator, whereas the OS grid is based on something
more suited specifically to the UK. But i really don't know.

tom

--
All we need now is Jesus the Lord, fine corn liquor and the courage to
think the unthinkable.

"Tom Anderson" wrote in message
h.li...
On Fri, 8 Jun 2007, Michael R N Dolbear wrote:

Tom Anderson wrote

Also, veering OT, has anyone seen the Multimap redesign? Rather good, i
think. They use a Mercator projection throughout, which means the A-Z
and OS maps are reprojected, and thus have detectably deformed grid
lines, which freaks me out.

Err, the OS, National Grid etc. use a Mercator projection, Transverse
Mercator though (see the bottom of any OS Map).

DOH! Very good point. They must be using different Mercator projections; i
would guess Multimap is using something that works globally, like
Universal Transverse Mercator, whereas the OS grid is based on something
more suited specifically to the UK. But i really don't know.

Some explanation at
http://www.ordnancesurvey.co.uk/oswe...ts/guide7.html
--
David Biddulph

On Sun, 10 Jun 2007, David Biddulph wrote:

"Tom Anderson" wrote in message
h.li...
On Fri, 8 Jun 2007, Michael R N Dolbear wrote:

Tom Anderson wrote

Also, veering OT, has anyone seen the Multimap redesign? Rather good,
i think. They use a Mercator projection throughout, which means the
A-Z and OS maps are reprojected, and thus have detectably deformed
grid lines, which freaks me out.

Err, the OS, National Grid etc. use a Mercator projection, Transverse
Mercator though (see the bottom of any OS Map).

DOH! Very good point. They must be using different Mercator
projections; i would guess Multimap is using something that works
globally, like Universal Transverse Mercator, whereas the OS grid is
based on something more suited specifically to the UK. But i really
don't know.

Some explanation at
http://www.ordnancesurvey.co.uk/oswe...ts/guide7.html

An excellent document - i've had the PDF sitting on my desktop for a few
weeks!

tom

--
Everybody with a heart votes love