[Therion] trouble with warped sketches drawing in the wrong place

[Jonny Prouty]

Hello all,
I've been having some trouble with warped sketches lately that has me
puzzled. All of the sketches are offset from the generated map, but the
offset varies from scrap to scrap. Furthermore, the offset is applied
before the sketches are morphed, as the sketches are clearly being deformed
differently than the walls, even though they should be identical. I should
note that I am not applying any specific offsets to any portions of the
map, which consist of only a single scrap. Any ideas are much appreciated!
th and thconfig files are after the screenshots. Thanks very much in
advance!!

Sincerely,
Jonny

Example, Map 1:
[image: image.png]
Example, Map 2:
[image: image.png]

Output of therion -v

therion 5.5.6 (2020-12-27)
  - using Proj 6.3.1, compiled against 6.3.1

Sample th file for one of the maps above:

survey hh
  import cave.3d -surveys ignore
  input hh2aug03.th2
  map scrap_hh2aug03v_pl_1 -proj plan
    hh2aug03v_pl_1
  endmap scrap_hh2aug03v_pl_1
endsurvey hh

Sample thconfig file for one of the maps above:
layout sketch
    scale 1 200
    sketches on
endlayout
maps-offset off
source map.th
select hh
export map -proj plan -fmt pdf -layout sketch -o hh2aug03v_pl_1.pdf
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20210202/38251fb4/attachment-0001.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 332942 bytes
Desc: not available
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20210202/38251fb4/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 398490 bytes
Desc: not available
URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20210202/38251fb4/attachment-0003.png>