drawing up - seeking advice

[Andy Waddington on Cave Surveying]

On Tuesday 2004-03-30 15:22, Eric Madelaine typed:
> wookey@aleph1.co.uk said:
> > So it's great for drawing a picture, but when you find some more,
> > connect another cave or get a better fixes on the entrances and need
> > to morph it all a bit, you have a serious problem. 
> 
> There was a package from an american caver, named Carto, if I remember 
> correctly, that did exactly that: define a binding between a centerline and 
a 
> vector drawing, and morphing the drawing to you centerline.
> 
> You could use it also to morph you field drawings directly (well, after 
> vectorization) to your centerline...

David MacKenzie was demonstrating software that did this in 1981
when I visited Mexico and Texas, and wrote it up in the AMCS Activities
Newsletter along with quite a bit of the maths that drove it. He was using
it to plot maze caves where new closures morphed the cave almost every
trip or so... I find it amazing that there aren't lots of packages to do this
sort of thing by now - 23 years is a LONG time in the software world :-(

Andy