August 2026 - Therion

th_formdef.tex runaway text error - LuaTeX
by bruce＠tomo.co.nz 20 Sep '26

20 Sep '26

>From my query two weeks ago, and Martin's suggestion I try LuaTeX. I've edited C:\Program Files\Therion\therion.ini to include. pdftex-path "luatex" I'm missing something: Running my thconfig with Mapiah, I get a log file that ends with. making map ... done 'luatex' is not recognized as an internal or external command, operable program or batch file. C:\Program Files\Therion\therion.exe: error --Press ENTER to exit! pdftex exit code - 1 Running my thconfig with XTherion, there is no mention of Luatex. I get a log file that ends with. ##################### end of pdftex log file ##################### C:\Program Files\Therion\therion.exe: error -- pdftex exit code -- 1 writing xtherion file ... done I checked my %APPDATA%\ folders, and the only Therion related ini in there is Loch.ini Any ideas? Bruce

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Scrap (background) sketches don't offset
by bruce＠tomo.co.nz 28 Aug '26

28 Aug '26

Hello Some 17.5 years later I seem to have tried the same unusual trick that I did in 2008 [Therion] Cave Sketches don't offset <https://www.mail-archive.com/therion@speleo.sk/msg02394.html> I try to export a scrap that has a -scrap image set, and I find that while the scrap content renders in the offset position, its background sketch renders without being offset. Did it get looked at back then? Perhaps there is a reason it is not implemented. Or maybe it was reverted by a subsequent change? Regards Bruce

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Bug on Win? - Magick
by Pavel Herich 27 Aug '26

27 Aug '26

Hi, on newest versions of Therion following error is being reported: povrch_bielovod_javor.th [7] -- error reading bitmap -- unable to read image C:/Users/Herich/Desktop/databaza_sk/jaskyne_ine/Tatry/_povrch_bielovod_javor/povrch1_geol.jpg -- Magick: NoDecodeDelegateForThisImageFormat `C:/Users/Herich/Desktop/databaza_sk/jaskyne_ine/Tatry/_povrch_bielovod_javor/povrch1_geol.jpg' @ error/constitute.c/ReadImage/739 Hope it´s some minor issue... Thank you Pavel

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Sketch offset
by Sau --- 24 Aug '26

24 Aug '26

Hello, i have trouble with sketches in pdf output. I have offset map to north, but all looks ok. Where are my mistake? -- Sau --- Отправлено из Почты Mail ( https://trk.mail.ru/c/zzm979 )

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th_formdef.tex runaway text error
by bruce＠tomo.co.nz 12 Aug '26

12 Aug '26

Hello I've just created an error, due I believe to particular layout changes I've made to a couple of exported elevations, but I'm yet to isolate which changes are the culprits. (It's not related to recent posts I've made on therion/therion: therion <https://github.com/therion/therion> - cave surveying software, and it is consistent across all recent Therion versions) Perhaps someone may know if I can use the therion log information to track down the cause? Using the below information I checked in file thTMPDIR /th_formdef.tex .and found the string \PL{9178.94 283.21 m}% on line 165540. There are 220130 lines overall, and the file seems to end without obvious truncation. That in itself does not help much. I'm sure I'll be able to isolate the cause by other means, but I'm just wondering if anyone knows if I could use this information to locate a cause? Bruce #################### end of metapost log file #################### converting scraps ... done making map ... done ######################## pdftex log file ######################### This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021/W32TeX) (preloaded format=pdfetex 2023.12.2) 30 MAR 2026 14:09 entering extended mode **data.tex (./data.tex (./th_enc.tex) (./th_texts.tex) (./th_resources.tex (c:/Program Files/Therion/texmf/tex/glyphtounicode.tex)) (./th_fontdef.tex{c:/P rogram Files/Therion/texmf/fonts/pdftex.map}) (./th_formdef.tex Runaway text? 9178.9 ! TeX capacity exceeded, sorry [main memory size=3500000]. l.165540 \PL{9178.94 283.21 m}% If you really absolutely need more capacity, you can ask a wizard to enlarge me. Here is how much of TeX's memory you used: 263 strings out of 95671 3772 string characters out of 1192323 3500001 words of memory out of 3500000 1667 multiletter control sequences out of 15000+50000 16503 words of font info for 54 fonts, out of 1000000 for 2000 844 hyphenation exceptions out of 5000 5i,1n,6p,289b,36s stack positions out of 5000i,500n,10000p,200000b,50000s ! ==> Fatal error occurred, no output PDF file produced! ##################### end of pdftex log file ##################### C:\Program Files\Therion\therion.exe: error -- pdftex exit code -- 1 writing xtherion file ... done

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Therion date ranges
by bruce＠tomo.co.nz 02 Aug '26

02 Aug '26

Mapiah recently highlighted a typo I made in some of my th2 files a year or so ago - detail here, but perhaps it is not important - [BUG] Parsing errors on opening some th2 files <https://github.com/rsevero/mapiah/issues/42> . Issue #42 . rsevero/mapiah I'm curious as to what Therion users understand is the intention with, or desirable for, the date range specification. The Therion Book says. Nothing there about the order of the dates, and it seems Therion is agnostic as to whether the earliest date in the range is specified first or last. I had always assumed incorrectly that the earliest date should be first. Survex date specification seems to be more flexible, allowing multiple distinct dates as well as ranges. I tried some variations of this with a single statement line with Therion, but it seems Therion cannot handle multiple distinct dates, unless multiple statements would do it - did not check. Survex 1.4.22 documentation - date <https://survex.com/docs/manual/datafile.htm#date> If Therion put up a warning when it detected a date range specified in the wrong order, then my typo might have been detected at the time. May I suggest that some date related warnings be added to Therion: * [author] [explorer] [topo] [copyright] date range in reverse order in [object name] * date earlier than 1900 AD in [object name] * future date specified in [object name] Bruce

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