Library for .3d files

[Philip Schuchardt]

I saw in this Survex Trac ticket
<https://trac.survex.com/ticket/85#comment:7> that you mentioned a library
for reading .3d files—that’s great news!

What’s the library called?

Is it available in Debian?

How do I build it and link to it?

I did a quick search but couldn't find any documentation on it. Sorry if
someone has asked this question before.

I'm working on adding support for more formats and Survex prefixes in
CaveWhere. It would be ideal to avoid using dump3d and another string-based
parser to process its output. Currently, CaveWhere uses survexport with CSV
output to get station locations. CaveWhere then generates its own network
of legs, but this info is outputed .3d file, which I’d prefer to use
directly instead.

Thanks!
Philip