Dave Arquati wrote in message ...
Michael Johnson wrote:
I found an interesting take on the London Underground map on the web
today. It seems someone's had a go at making a 3D version, which shows
how the various lines pass over and under each other:

http://www.recenda.f9.co.uk/pages/tubemap.htm

It's probably fair to say that this version of the map wouldn't win
top marks for accuracy - he's got the Central line serving Hammersmith
in Map 1! - but it's an interesting idea.

To be fair I think that's because he has the Central line at a much
lower depth than the H&C so although it looks like it serves Hammersmith
in Map 1, that's just a quirk of a 2D representation of a 3D file.

Maps 2 & 3 show that it's not really showing Hammersmith.

The problem seems to be that in plan, the deep tube/sub-surface
interchanges are in the right place, but they're not linked to the
lines. He needs to extent the interchange circles downwards as
columns to meet the deep tubes.

There's clearly a bit of artistic licence at work to get around the
difficult bits, and he seems to be having major problems fitting some
of the interchange stations together with the lines, but I think this
is intended as an art project more than anything else.

An interesting variation of a familiar design, anyway...

I wonder whether he used actual depth information or just guessed.

Judging on the W&C, it looks like he just guesstimated so that no
lines "collided" where they shouldn't. Of course, with something like
this is would be possible to represent the Camden Town junction
properly.

Either way it's an interesting concept. It would be great if he could
supply a VRML file so we could rotate it and view it in 3D ourselves.
Then maybe the next stage could be to model the relative platform
locations and hence the station layouts in 3D... big task!