[Therion] auriga to therion

[Stacho Mudrak]

> - If the "data" command contains "backcompass" and/or "backclino" and the
> user did not actually take a backsight for some shots, can I put 0.00 or do
> I have to fake backsights to prevent bad averaging? Or is there a way to
> tell Therion to ignore this missing data (other than repeating a "data"
> command), like putting a ? or some special character?

You should be able to use -, if backcompass reading is missing.

> - Can I interleave station flags between survey shots, like:
>
> 3.1 3.2 10.00 359.99 -10.00
>
> station 3.1 "" entrance
>
> 3.2 3.3 11.00 1.00 -12.00

This should be possible.

> - For splay shots (between a station and some detail, where one station is
> . or -), do I have to put LRUD data? It's always going to be 0.00.

You may use -, if LRUD data are missing. For splay shots, they are
simply ignored.

> - If I want to pass topofil data, can I pass both start and end readings?
> How? The Therion book only mentions "topofil".

You can use fromcount/tocount for start and end readings:
data topofil from to compass clino fromcount tocount

> - How do I tell Therion that slope 0 is up or down? Such 0-180 clinometers
> are used on topofils.

Using calibrate clino. If 0 is up, use:

calibrate clino 90 -1

If 0 is down:

calibrate clino 90  1

> - How do I pass dive data? I just put the depth instead of the slope and I
> set "meters" for the "depth" instrument?

It depends, if you have interleaved data or not. This is simple example:

data diving from to compass fromdepth todepth tape

> - The Therion book would gain much clarity by providing examples for each
> command.

Therion should have basicly the same syntax of centerline data as
survex has, so you should look at survex manual.

HTH, S.