October 2025 - Therion

macOS installation
by Anže Abram 05 Nov '25

05 Nov '25

Greetings. I've been trying to reinstall Therion on a new M-series macbook on the newest OS (Tahoe) but have run into several 'dead ends'. (1) First I tried the homebrew method, but I ran into the same issue as several others. The whole homebrew route seems to be broken currently. https://github.com/ladislavb/homebrew-therion/issues/15 (2) I tried to compile it from source, but it gets stuck while trying to compile Loch with the following error: In file included from lxSetup.cxx:39: *./lxData.h:35:10: **fatal error: **'vtkPolyData.h' file not found* 35 | #include <vtkPolyData.h> | * ^~~~~~~~~~~~~~~* 1 error generated. make[1]: *** [lxSetup.o] Error 1 make: *** [loch/loch] Error 2 Does anyone know of a solution, how to tackle any of these problems by chance? Thanks in advance, Anze *Anže Abram* Ulica bratov Učakar 84, 1000 Ljubljana SI - Slovenia *M* +386 41 480 906 *@* anze.abram(a)gmail.com *Naše oči je zalila* *lava goreča*.

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kml color
by Philippe Vernant 25 Oct '25

25 Oct '25

Hi guys, I can’t find a way to change the light greyish color of the kml export except by going into the kml file and change it after it has been created. Is there a way to specify the color when creating the kml ? Thanks, Phil

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New Mapiah release v0.2.19 - The polish refactoring - Part 1
by Rodrigo Severo 14 Oct '25

14 Oct '25

Hi, With some delay, here is a new Mapiah release: v0.2.19 - The polish refactoring - Part 1. Now the releases will have names also. Because I believe it might will interesting to register something less technical about the releases. Another change is that from now on the changelogs will be available at the release page. In this case https://github.com/rsevero/mapiah/releases/tag/v0.2.19 There are no new features in this release, just a ton of new tests and of bug fixes. That's what will probably happen also on the next release. Until I finish the "the polish refactoring", which, by the way, is just a refactoring that I decided to do while in Poland and that was the starter to all these new tests and subsequent bug fixes I will refrain on implementing new features. Web release available, as usual, at https://mapiah.org/webapp. Please report, Rodrigo

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metapost map title line spacing
by bruce＠tomo.co.nz 10 Oct '25

10 Oct '25

> size:90>Creux ...<size:45> Entrée ? I have had this problem with point label, and discovered that the line spacing resulting from is set by the -scale parameter, and not any formatting defined within the string. Probably -scale wont work for a map title. Try using <thsp> (thin space) instead of . If it works it is easiest. Some more information on <https://therion.speleo.sk/wiki/drawingchecklist#points> drawingchecklist [Therion wiki] - points Another way is to use these inside a code tex block. Perhaps has the same effect as -scale, but for various elements of the default header. #Legend Text size. Uncomment to customise default header text sizes \legendtextsize={\size[12]} % legend text default 12 \legendtextsectionsize ={\size[14]} % subheading default 14 \legendtextheadersize={\size[26]} % heading text default 26 You could make the heading text default size smaller, thereby reducing the size of the linefeed due to , and use <size:45> to make the lettering larger or smaller. Bruce

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metapost
by Yann Gardère 10 Oct '25

10 Oct '25

Hi community 2 questions : - Is it possible to modifiy in metapost the line which is dessined into 2 *points* map-connection ?: [image: 1.png] - Is it possible to modify the line height of a Tag in draw ? for my convenient i use this code : map MP_entree -title "<size:90>Creux ...* *<size:45>Entrée" -projection plan The result [image: 2.png] But there is too much space for the TAG, a solution for decrease space for the tag? Thanks Yann

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Limit in the number of scraps in a (big) project ?
by Xavier Robert 09 Oct '25

09 Oct '25

Hi all, I am maintaining a quite big structured Therion database with more than 700 caves (https://github.com/robertxa/Topographies-Samoens_Folly) I am using Therion 6.3.3 (2025-01-06), TeX Live 2015 (MetaPost 1.999). Following a new session of exploration and surveys, I added some scraps in this database. I have no problem to run any compilation of separate caves. But since my last update, when I try to run a Therion compilation for the whole database to build the 3D view of the system (https://groupe-speleo-vulcain.com/wp-content/themes/custom_theme/3d/JB.html) I get an error during the « Preloading the plain mem file » : [...] [4090] [4091] [4092] [4093] [4094] [4095] ! Number is too large (4096). l.296920 beginfig(4096 ); [4096] ! Number is too large (4097). l.296923 beginfig(4097 ); [4097] … and so on… therion: error -- metapost exit code -- 512 I a m not sure, but I think that I have a total of 4102 objects (this is the last number with a similar error ; with a total of 4117 files written in thTMPDIR/). If I run Therion with the -d option, I see all the data.xxxx from 1 to 4102 in thTMPDIR/. The compressed log file is in attachement. I tried to recompile my database after commenting a small part of the database that I did not change recently. The compilation run well. So, I suspect that there is a limit in the number of objects (scraps ?) Therion (or mpost ?) can handle. Am I right ? Is there a way to get rid off this limitation ? Cheers, Xavier

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Setting up a Therion ecosystem on Mac
by bruce＠tomo.co.nz 01 Oct '25

01 Oct '25

Mōrena I just offered to help a fellow caver set up a Therion ecosystem on their computer. Only I’m a Windows user, and I just found out they’re on Mac. I wouldn’t even know how to turn on a Mac. So I’m looking for any tips and advice to help ease the process. Here is what looks like software that might be equivalent to what we’re using on Windows: 1. First up Git Git - Downloading for macOS <https://git-scm.com/downloads/mac> . Any pointers on whether to go with Homebrew, MacPorts or XCode? We are likely to be fans of git-gui and gitk. 2. I find icon overlays a necessary feature to provide general situational awareness. Such as TortoiseGit – Windows Shell Interface to Git <https://tortoisegit.org/> , but that is Windows only. SnailGit: Git for Finder on the Mac <https://apps.apple.com/us/app/snailgit-git-for-finder/id847260112?mt=12> App Store looks like it is similar. Anything else the comes with icon overlays? Free? 3. Text Editors that have Therion syntax stylers. contrib:externaleditors [Therion wiki] <https://therion.speleo.sk/wiki/contrib:externaleditors?s%5b%5d=mac> suggests BBEdit and Brackets with stylers by Xavier Robert. Which of these is best Xavier? Other options? 4. Therion. I assume ladislavb/homebrew-therion <https://github.com/ladislavb/homebrew-therion> is the latest, superseding tbe:wiki1 [Therion wiki] <https://therion.speleo.sk/wiki/tbe:wiki1?s%5b%5d=os> and masox [Therion wiki] <https://therion.speleo.sk/wiki/masox?s%5b%5d=os> 5. Xpdf. XpdfReader <https://www.xpdfreader.com/> 6. Is anyone running TopoDroid in an Android emulator on mac? Feedback and suggestions welcome. Thanks Bruce

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