On Wed, Oct 30, 2013 at 09:16:16PM +0000, Dave Clucas wrote:
> > marco menchise asked me why extended sections do not come colored by altitide.
> > indeed coloring ext. sectiion by altitude (or depth) would make sense to me ...
> > tried with 5.3.11 and they come white.
> > looked at the source, and the Z coord that it used to color by
> > altitude is set to 0 for the extended section.  any reason why?
>

> Surely the reason is you don't need it. The passage at top of the page
> is high and the passage at the bottom is low.

If you have a plan and elevation, colouring both by depth consistently
is useful to provide a clear visual cue as to which parts correspond.

Cheers,
    Olly
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