On Fri, 23 Apr 2004 08:32:01 +0100, Mike Tullett
wrote:

On Fri, 23 Apr 2004 01:03:04 +0100, Dave Ludlow wrote in
m
snip
...The colour boundaries look odd too. As you say - bring back
isopleth maps. I do think this is potentially a very useful source,
though, once such problems are ironed out.

Yes, I didn't mean to complain about the idea of mapped averages
because I've always thought the previous implementation was good.
IMO, the only thing that needed changing was the addition of some
*light* colouring to help the eye when following the isopleths round
and through which the lines could still be seen.

As for the the values chosen for the colour boundaries, in many cases
they are simply awful. A colour key with linear (or if necessary,
logarithmic) values would have been better, using round figures as
much as possible. If ordnance survey maps were drawn in the same way,
they wouldn't be much use to most people...

Cheers

--
Dave