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.