"Tom Anderson" wrote in message
h.li...


They could break it down by zone, and have separate bar-charts for each.
Or how about some kind of crazy pie-chart, like a dartboard, with each
sector allocated to a line, in roughly the order they head out of London,
each ring corresponding to a zone, and then the height of a 3D tower
rising from each block corresponding to the price?

tom

PS what do you call the subdivision of a circle that's the part of a
sector between two concentric circles? I'm calling it a block because of
hard disks, but it must have a proper name.

Is it an annular sector?

Paul S