From the chat...

''[dzach] wrote:'' BTW there is this fine application, Therion[http://therion.speleo.sk/], that does cave mapping with [tcl]/[tk].

From the web page:


Therion is a complete package which processes survey data and generates
maps or 3D models of caves. It runs on wide variety of platforms:
Linux, Windows, Mac OS X. It is completely free, released under the
terms of GNU GPL, with source code available. It doesn't require any
other commercial software to run.


Basic drawing instructions [http://therion.speleo.sk/wiki/doku.php?id=tbe%3awiki3]
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[[[Category Application]]]

[Category Geography]