Hi all,

This is my first message on this list. I try to user therion with the
linux version.

I can generate a topo and a 3d model now with wiki help. But I have an
issue with vertical and I don't find anything on the wiki or the
mailing list archive to solve it.

I try to realise a topo with vertical and on all vertical I have a
figure there are nothing to do here.

I will try to explain my trouble:

If I put -90° or +90° I have a new rectangle on the result if I try
with -89° the rectangle disappear.

With -90° see the result at this address
http://i.imgur.com/AinzN.png

survey main -title "Test cave"

 survey first
 centreline

    data normal from to length compass clino left right up down

P0        0                       0.00    0.00    0.00    0.60   0.30
0.00   1.00
0         1                      10.50    70.00  -66.00   1.00   0.50
1.00   3.50
1         2                       7.50    70.00  -90.00   0.30   1.00
3.00   0.00
2         3                       1.15    70.00   0.00    0.30   1.10
0.00   0.50
3         4                       2.30    70.00  -34.00   0.00   1.50
1.50   1.25
4         5                       1.00    70.00  -90.00   0.30   1.30
6.25   0.00
5         6                       2.90    70.00  -1.00    0.60   1.00
1.00   2.00
 endcentreline
 endsurvey
endsurvey

The same with -89°

    data normal from to length compass clino left right up down

P0        0                       0.00    0.00    0.00    0.60   0.30
0.00   1.00
0         1                      10.50    70.00  -66.00   1.00   0.50
1.00   3.50
1         2                       7.50    70.00  -89.00   0.30   1.00
3.00   0.00
2         3                       1.15    70.00   0.00    0.30   1.10
0.00   0.50
3         4                       2.30    70.00  -34.00   0.00   1.50
1.50   1.25
4         5                       1.00    70.00  -89.00   0.30   1.30
6.25   0.00
5         6                       2.90    70.00  -1.00    0.60   1.00
1.00   2.00
 endcentreline
 endsurvey
endsurvey

I don't know if it is clear or not, I'm sorry for my english.
Do you have any idear on what is wrong or what I don't undestand ?

Regards,
Laurent

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