[Therion] Problem using extend command

[Bruce Mutton]

And hi again
 As I have mentioned I have very little experience with extended elevations,
but taking your example as an opportunity to learn...

The following excerpt from the Therion book suggests you may have made an
error in input.  Perhaps if you specify only one station it will work as you
desire?

"normal/reverse . extend given and following stations to the same/reverse
direction as previous station. If two stations are given, direction is
applied only to given shot.

Bruce

-----Original Message-----
From: therion-bounces at speleo.sk [mailto:therion-bounces at speleo.sk] On Behalf
Of John Pybus
Sent: Tuesday, 24 February 2009 12:45 p.m.
To: Therion List
Subject: [Therion] Problem using extend command

Hi,

We're still working on our extended elevation, and have been having 
problems getting the centreline to work with extend configuration commands.

We have found a number of occasions where an "extend reverse 
stationname" command reverses one leg at that point but doesn't apply to 
any folloeing legs.  e.g. in a passage going

5 -> 6 ->
           7 ->
                8 -> 9 -> 10

extend reverse 7 gives:

5 -> 6 ->
        <- 7
      8 -> 9 -> 10

when I would expect:

       5 -> 6 ->
              <- 7
10 <- 9 <- 8

We've ended up having to add explicit extend right configuration for 
station 7, then station 8 and station 9 etc.

We've tried to pare down our survey to one example of this in the 
attached file (julagua-elev_testcase.th)

There are also several other examples where this occurs commented out.

Any chance of fixing this?

Cheers,

John & Hilary