- ntg-context - NTG Mailing Lists

regular online meet-up
by Henning Hraban Ramm 13 Mar '24

13 Mar '24

You’re invited to our regular online meet-up, this upcoming Wednesday, March 13th, 19:00 CET (UTC+1) at https://lecture.senfcall.de/hen-rbr-rku-oke (same, but shorter: https://u.mtxrun.eu/ctxmtg) ConTeXt users of all levels are welcome! Do you have a subject that you’d like to talk about? Looking forward to seeing you, Hraban (Same blurb as always:) [Howto] * No special software installation required; most modern browsers should work (WebRTC required). * Open the URL above, accept the privacy statement, * enter your name, * click "join" (or "start" if you’re the first), * click "with microphone", allow your browser to access it, check the audio. * Your microphone is muted if you join. Activate microphone and/or camera with the buttons at the bottom. * Minimize the default presentation with the "screen" button, bottom right. * If you’d like to share your screen or upload a file, you can make yourself the presenter: Click on your user name, change the setting, then you’ll see the "screen sharing" button beside the camera button; also there’s now "manage presentations" behind the "plus" button. Beware there is only one presenter at a time, so don’t kill someone else’s presentation. [Technical hints] * Sound is usually better if you use a headset (less noise for everyone). * Connection problems are mostly due to low bandwidth or high latency on your side, e.g. with mobile connections. * Sometimes leaving and re-entering helps. * If audio/video doesn’t work for you, you can still use the text chat. * Screen sharing needs a lot of bandwidth. * BigBlueButton documentation applies: https://bigbluebutton.org/teachers/tutorials/ [Netiquette] * Please use a name that we recognize from here. Some feel uncomfortable with anonymous lurkers. * Mute your microphone while you’re not talking. * It’s nice to show your face at least when you join. * If there are connection problems, stop camera sharing. * The room is set to “everyone’s a moderator“, I trust you...

1 1

Creating a module for calligraphy practice templates
by Andres Conrado Montoya 12 Mar '24

12 Mar '24

Hello, list! I've been working on a module to typeset calligraphy practice templates using ConTeXt and MetaPost. You are welcome to check it out on github: https://github.com/conradolandia/pauta I'm not including a MWE because the repository has all the current code. I hope this is fine. I did not want to clutter the list with too much text. The module is only a single file (t-pauta.mkxl) and some examples of use and documentation that are still somewhat unfinished, but I've tried to document the source code as much as I could. If you need clarification about anything, please let me know. (At the root of the repository, there is a file build.lua, that is not really part of the project, just a custom tool I use to process the files, a sort of minimal build system. You can ignore it.) I welcome any kind of suggestions and dire warnings. I've tried to read the wiki and the manuals carefully and made as many tests as possible, and in general it works fine, but I have ADHD and things frequently get over my head. There are still some things that don't work as they should, and things that need improvement: 1. I use top/bottom areas to display some info. These areas are not being handled properly so far. For example, if I place a chapter before the Pauta macro invocation, there will be data on the top and bottom areas in the last page of the chapter. I've tried using \page and clearing the areas, which feels like cheating, but still does not work well. Any ideas on how to better handle this are more than welcome. 2. I'm using what I found at https://wiki.contextgarden.net/System_Macros/Handling_Arguments and \getparameters to handle the arguments for my Pauta macro, but today I found out about \processaction at https://wiki.contextgarden.net/Module_Parameters and I'm not really sure if I should change my module to work with this instead of \getparameters. In general, after checking the source code of several modules, I'm not really sure how much I have to follow the guidelines at https://wiki.contextgarden.net/Module_Parameters or if those are the most current recommendations. 3. I'm including in my module the code of the file hatching.mp that can be found at https://ctan.org/tex-archive/graphics/metapost/contrib/macros/hatching. I did this for portability reasons, since it's less than 70 lines and has not been updated in 20 years. But if it's better to have this in a separate file, please let me know. Also, if a better method to create pattern filled paths is available, please let me know, I confess I didn't look too much into it yet. This has solved my requirement so far. 4. I want to be as close as possible to the new LMTX syntax and way of doing things. so If you think I'm doing something in anachronistic ways, please let me know. In general, if someone wants to check it out and provide feedback so I can improve it, with the objective of eventually being shared on modules.contextgarden.net, will be much appreciated. Thank you for your time, and have a great week! -- Andrés Conrado Montoya Andi Kú andresconrado(a)gmail.com http://sesentaycuatro.com http://messier87.com http://chiquitico.org ---------------------------------------- Los fines no justifican los medios, porque la medida verdadera de nuestro carácter está dada por los medios que estamos dispuestos a utilizar, no por los fines que proclamamos. ---------------------------------------- “You develop an instant global consciousness, a people orientation, an intense dissatisfaction with the state of the world, and a compulsion to do something about it. From out there on the moon, international politics look so petty. You want to grab a politician by the scruff of the neck and drag him a quarter of a million miles out and say, ‘Look at that, you son of a bitch.’” — Apollo 14 astronaut Edgar Mitchell

2 1

update
by Hans Hagen 11 Mar '24

11 Mar '24

Hi, Todays update has a fix for the compact mode slant interference (as explained by Wolfgang a few days ago). Hopefully that works out well. We (MS and HH) also managed to make curve detection more accurate (the decision routine that is responsible for straight lines in the MP output) so that extreme paths with control points way beyond reasonable still produce the right output (before we could get a wrong bbox due to clipping the curve in the backend). One can actually also force "always curve" with "withcurvature 1" (more variants might follow) but that is more or us to have a test option. Curvature detection is mostly a pdf efficiency feature and normally users should rely on the default to work okay. Other new mp features are relative and absolute points which makes it possible to define paths in a turtle graphics way (a bit like hlineto and vline in postscript), a native "--" operator (equivalent but somewehat more efficient on huge generated paths). The luametafun manual has a chapter on paths that describes some of this. Yet another new feature is "firstcontrol" and "secondcontrol" that is an addendum to controls that makes both control points the same when only one is given. Finally there is a fix in mp where some directions, think { dir 120 }, gave the wrong result due to sign swapping (so it was seen as { dir 200} or { dir -60 }) as side effect of negative zeros fed into tan2. This became obvious when MS reprocessed a graphic, as last year we switched from scsled (no bug) to double (long time bug exposed). (The bug is also present in LuaTeX double/binary mode but it will be fixed there too.) The rest is not (yet) worth mentioning, Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

3 2

issue with module update
by Pablo Rodriguez 11 Mar '24

11 Mar '24

Dear list, I have just updated a module named PresVoz. I get the standard directory (https://modules.contextgarden.net/dl/presvoz/) and (https://modules.contextgarden.net/dl/presvoz-{%version%}.zip) but no https://modules.contextgarden.net/dl/presvoz.zip (with current version). So when updating the module, I get it only uninstalled. The two most recent updates (this one and the one before) had this issue. Is there something I am missing here? Many thanks your your help, Pablo

2 2

weird character normalization in the wiki
by Pablo Rodriguez 11 Mar '24

11 Mar '24

Dear list, https://wiki.contextgarden.net/Greek#Monotonic_and_Acute_Accent includes two samples that should display the difference betweeen the monotonic accent and the polytonic acute accent (which generate two different characters for each such accented vowel). Excluding other implications, these are two different characters. In some fonts each pair of different characters for each accented letter lead to the same glyph, in other fonts those glyphs are different. This sample shows the difference (there should display two slightly different accents [unless there is some character normalization on the way]): \definefontfamily[mainface][rm][EBGaramond] \setupbodyfont[mainface, 500pt] \definecolor [tred] [r=1,t=.5,a=1] \definecolor [tblue] [b=1,t=.25,a=1] \starttext \startTEXpage[offset=1ex] \startoverlay {\color[tred]{Ά}} {\color[tblue]{Ά}} \stopoverlay \stopTEXpage \stoptext The problem that I have is tricky. Thanks to character normalization (at least in Firefox), searching for "á" will also find "a" (unless “Match diacritics” is enabled). I’m afraid the wiki is performing some character normalization, which renders samples in https://wiki.contextgarden.net/Greek#Monotonic_and_Acute_Accent useless. Searching for "Ά" in https://wiki.contextgarden.net/Greek should give not more than 4 matches (not case-sensitive and with “Match diacritics” [or similar filter for your browser] enabled). I‘m afraid I get none. While editing the article searching for "Ά" (case-insensitive and not normalizing characters), gave me 4 matches, but only in the source (no ocurrence was found in the preview). Once changes are saved, "Ά" occurrences dissapear (since they seem to be normalized). Sure, they may be a workaround to type codepoints instead of characters (such as with \utfchar{0x1fbb}, but wouln’t it be possible to disable that character normalization in the wiki? Many thanks for your help, Pablo

2 2

has the statistical charts module a new home?
by Henning Hraban Ramm 11 Mar '24

11 Mar '24

Hi Tomáš et al., the site https://akela.mendelu.cz/~thala/statcharts/ and actually the whole server disappeared. Is there a new download location for the charts module? It would be nice if we could just host it on https://modules.contextgarden.net, then it could also get installed via the mtxrun script. Hraban

2 1

Cron <context@cgl> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 11 Mar '24

11 Mar '24

receiving incremental file list ./ ctan.lsr document-2.htm download-1.htm download-2.htm logo-ade.png logo-cts.png logo-pod.png rss.xml show-fil.pdf context/latest/ context/latest/cont-lmt.zip context/latest/cont-mpd.zip context/latest/cont-ppc.zip context/latest/cont-sci.zip context/latest/cont-tmf.zip context/latest/cont-tst.7z context/latest/cont-tst.tar.xz context/latest/cont-tst.zip general/manuals/ general/manuals/luametafun.pdf sent 191,427 bytes received 50,818,272 bytes 3,517,910.28 bytes/sec total size is 579,139,721 speedup is 11.35 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2024-03-11.11 246221856 /var/www/aanhet.net/context//htdocs/archives/context-2024-03-11.11/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2024-03-11.11/current 372971269 /var/www/aanhet.net/context//htdocs/archives/context-2024-03-11.11 372971269 total

1 0

Document metadata after context --extra=select script
by Michael Guravage 10 Mar '24

10 Mar '24

Greetings, I set a document's title with the following code: \expanded {\setupmetadata [title={Document Title}]} I then create a derivative document with a selection of pages using ConTeXt's select script. context --extra=select [options] list-of-files The metadata title of this document is "mtx-context-select." While I can use any number of utilities to manually tweak the title, is there a ConTeXt way to preserve or assign metadata values when using these scripts? -- With kind regards, Michael

1 0

How can I do this?
by Ursula Hermann 10 Mar '24

10 Mar '24

Dear List, I need a tip how to do this: In the command \definepapersize[Mybook] the height should be not 24 cm, but a little bit longer. My Problem is, as you can see on the PDF, that there are troubles with the Gray Background. The Gray Background should begin with : Mitunter. . I think it should be the topoffset, and the bottomoffset, but how many .\bodyfontsize should I try? Many thanks Uschi \mainlanguage[de] \definepapersize[MyBook][width=19cm,height=24cm] \setuppapersize[MyBook][MyBook] % Prints on paper the size of MyBook %\setuppapersize[MyBook][A4] %Would print MyBook-size pages on A4 paper \setupbodyfont[Times New Roman,12.55pt] \definemargindata [MyInMargin][inright] \definemarginframed[MyInMargin][topframe=on,bottomframe=on,rulethickness=1pt,width=1.90cm] \defineenumeration [theorem] [ text=Theorem, title=yes, width=fit, distance=0.2em, alternative=serried, ] \definetextbackground[GrayBackground][ location=paragraph, background=color, backgroundcolor=lightgray, leftoffset=.8\bodyfontsize, rightoffset=.8\bodyfontsize, topoffset=.5\bodyfontsize, bottomoffset=.5\bodyfontsize, frame=off,] \margintext{\blackrule[color=black, height=0.10ex, width=1cm]\\} \blackrule[color=black, height=0.10ex, width=13.50cm] \starttext \margintext {1.1.1} {\bf Beispiel 3.2.17 (Vertauschung von All- und Existenzquantor).} \par {\it Sei M die Menge aller Männer und F die Menge aller Frauen. Die Aus-\par sage h(m, f) sei ”m ist verliebt in f“. Unter diesen Voraussetzungen machen Sie sich die Bedeutung der beiden Aussagen klar.} \par \startitemize[n,packed,broad] \item \m{\forall m ∈ M : ∃f ∈ F : h(m, f)} \item ∃f ∈ F : ∀m ∈ M : h(m, f). \stopitemize \startGrayBackground \tf Mitunter ist es aus der Formulierung nur schwer zu erkennen, dass ein \m ∃\forall∀ oder ein \m \forall∀\m∃ versteckt ist. Dann ist es besonders wichtig, die Formulierung sehr lange zu prüfen und eventuell auch formalisiert noch einmal aufzuschreiben.” \blank \setupnarrower [left=0.80cm, right=0.80cm] \startnarrower[left, right] \definehspace[oneem][0.5em] Der\hspace[oneem] Wert\hspace[oneem] von\hspace[oneem] \m{y = f(x)} ist unabhängig von der Wahl\\ von \m{x\doubleprime} ist gleichbedeutend mit \m{∃y : ∀x : f(x) = y} \\ (Beutelspacher [10, S.54])\par \blank \stopnarrower \stopGrayBackground \blank \blackrule[color=black, height=0.10ex, width=13.50cm] \setupinteraction [state=start, color=blue] \reference[Regel:1]{3.1}\par {\bf Aufgabe 3.2.18} Formulieren Sie gemäß der Regel (\goto{3.1}[Regel:1]) äquivalent \startitemize[n,packed,broad] \item \m{\forall n \in \naturalnumbers\mtp{:} n^2 > n \implies n > 1},\item \m{\forall n \in \naturalnumbers\mtp{:} 3\divides n \implies 4 \divides n},\item \m{\forall n \in \naturalnumbers\mtp{:} n^3 \mtext{ ungerade }\nospace \implies n \mtext{ ungerade}}. \stopitemize \blackrule[color=black, height=0.10ex, width=13.50cm]\par {\bf Aufgabe 3.2.19} Bilden Sie die Verneinung der folgenden Aussagen: \startitemize[n,packed,broad] \item Alle Rosen sind verwelkt oder teuer. \item Alle rosen sind entweder verwelkt oder teuer. \stopitemize \par \usecolors[svg] \setupinteraction [state=start, contrastcolor=cornflowerblue] \reference[Abschnitt:1]{3.2.1.1} {\it Hinweis: Beachten Sie die Konvention aus Abschnitt \goto {3.2.1.1}[Abschnitt:1]die For-\par mulierung \quotation {entweder ... oder} entspricht dem ausschließenden Oder\par und die Formulierung \quotation{oder} dem (mathematischen) einschließenden\par Oder.\par \blackrule[color=black, height=0.10ex, width=13.50cm]

4 4

\em issue in MkXL (2024.03.05 11:26)
by Pablo Rodriguez 10 Mar '24

10 Mar '24

Dear list, the following latest gets differents results when compiled with MkXL and MkIV (in current latest from 2024.03.05 11:26): \definefontfamily[mainface][rm][TeX Gyre Termes] [features={default, quality}, it={style: regular, features:{default, quality, slanted}}, sl={style: regular, features:{default, quality, slanted}}] \setupbodyfontenvironment [default] [em=italic] \setupbodyfont[mainface] \starttext \startTEXpage[offset=1em] a\\ \em b\\ \em c\\ \em d\\ \stopTEXpage \stoptext LMTX gets b, c and d in slanted form. LuaTeX gets only b and c in slanted form. I think LMTX may have an issue here. Could anyone be so kind to confirm this? Many thanks for your help, Pablo

5 9