[Therion] Incorrect depth generated for legend

[Olly Betts]

On Tue, Jun 26, 2012 at 05:06:50PM -0400, McLendonJP at aol.com wrote:
> Therion is reading my LRUD data as meters instead of feet. I use the command
> "units length feet" before the data but seems to only work for the tape
> measurement. Am I missing something?

The therion book doesn't seem to explicitly include these in the list of
valid quantities, but the syntax comes from Survex so this should work:

units left right up down feet

Cheers,
    Olly