For converting Compass survey data files into metric, you can use my Cave Converter program.

http://wscc.darkgem.com/caveconverter/

You can read Compass data into the program, and export it as Survex format. From this it is straight forward to copy and paste the data sections into Therion files. I am working on adding direct Therion export (and import) next.

Footleg

On Wed, Dec 21, 2016 at 2:50 PM Martin Sluka via Therion <therion@speleo.sk> wrote:
Anyway, you may use Survex and .3d file exported from Therion:

3dtopos - name of utulity

3dtopos — produce a .pos file from a .3d file

Synopsis

3dtopos [options] {.3d file} [.pos file]

Description

3dtopos takes a .3d file and produces a .pos file which contains a list of all the stations with coordinates (ordered x,y,z [East, North, Up]) and complete names.

The stations are sorted such that numbers occur in the correct order (so “2” before “10”). 3dtopos even sorts numbers with a prefix and/or suffix, so you’d get:

         040.sv8
         040.sv8a
         040.sv8b
         040.sv8c
         040.sv9
         040.sv10
         040.sv11
         40_entrance_tag
         40b_entrance_tag

Survex 1.2.30 Manual

11

You can also export .pos files from aven in versions 1.2.19 and later.
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