January 2024 - ntg-context - NTG Mailing Lists

font error in float placement?
by Henning Hraban Ramm 14 Jan '24

14 Jan '24

(LMTX, latest beta with self-compiled binary on OSX-intel.) With my book, I run into an Lua error while placing a sidefloat. If I comment \externalfigure or replace the image with a different one, the error disappears. I can’t reproduce it in a minimal example, so I guess it depends on the current surroundings. Since it points to some font handling and the figure is a PDF containing fonts, I guess it might depend on the new handling of fonts in PDFs, but it doesn’t change regardless of \setupexternalfigures[compact=preset:merge] or other settings. Here’s the image: https://yemaya.fiee.net/s/8TqwfcP7mLMmy9p (In a simple document it works.) Hraban """ lua error > lua error on line 516 in file de/c_feinheiten.tex: registered function call [1565]: ...xmf-context/tex/context/base/mkxl/lpdf-fix-imp-fonts.lmt:596: attempt to index a nil value (field 'embed') stack traceback: ...xmf-context/tex/context/base/mkxl/lpdf-fix-imp-fonts.lmt:596: in local 'handler' ...xmf-context/tex/context/base/mkxl/lpdf-fix-imp-fonts.lmt:709: in upvalue 'plugin' ...xmf-context/tex/context/base/mkxl/lpdf-fix-imp-fonts.lmt:938: in upvalue 'lpdf_epdf_fontplugin' [string "local lpdf_epdf_fontplugin = lpdf.epdf.fontpl..."]:3: in local 'runner' ...-10/tex/texmf-context/tex/context/base/mkxl/lpdf-fix.lmt:97: in upvalue 'lpdf_epdf_contentplugin' [string "local lpdf_epdf_contentplugin = lpdf.epdf.con..."]:3: in local 'runner' ...-10/tex/texmf-context/tex/context/base/mkxl/lpdf-fix.lmt:119: in field 'pageplugin' ...-10/tex/texmf-context/tex/context/base/mkxl/lpdf-pde.lmt:1371: in upvalue 'copypage' ...-10/tex/texmf-context/tex/context/base/mkiv/grph-chk.lua:112: in function <...-10/tex/texmf-context/tex/context/base/mkiv/grph-chk.lua:97> ...-10/tex/texmf-context/tex/context/base/mkxl/grph-inc.lmt:1680: in function <...-10/tex/texmf-context/tex/context/base/mkxl/grph-inc.lmt:1665> (...tail calls...) 506 \startsubsection[title=Schriftwahl] … 513 514 \startplacefigure[title={Beispiele für gebrochene Schriften, halbherzig von Hand ausgeglichen},location=right,reference=abb:fraktur] 515 \externalfigure[gebrochene_schriften][width=.5\textwidth] 516 >> \stopplacefigure """

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Do we have a geometry library for Metafun?
by Shiv Shankar Dayal 13 Jan '24

13 Jan '24

Do we have a geometry library for common operations like finding tangents, perpendiculars, circumcircle, orthocenters and such? -- Respect, Shiv Shankar Dayal

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Why the way key-value argument is called affected the document's output?
by 111414w＠gmail.com 13 Jan '24

13 Jan '24

Hi, I was cleaning and formatting my context file and then when I compiled it, the output I got introduced extra vertical spacings at the section headings that weren't there in the previous compilations. I had to spend enormous amount of time trying to fix it so to emulate my previous outputs. Turns out the problem was how I called one of the key-value argument in the document. I really wanna know the reason why it did influenced the output? Provided below is the minimal source code (and it is producing different outputs, meaning the vertical spacings are not same, on my device running the version released in the September and also tested with the latest release.) """ %% differences in outputs, for how "grid=yes" is called. %% Type 1. %\setuplayout[grid=yes] %% Type 2. %\setuplayout[ %grid=yes %] \setuphead[section][grid=low] %% needed to observe the output difference \starttext \title{Alpha} \subsection{Beta} \input{knuth} \stoptext """ Best regards, Ali

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Asking help for better way to make tickets.
by Jeong Dal 13 Jan '24

13 Jan '24

Dear all, I’d like to make a ticket on A4 as follows: 1. Use all of A4(no margin, no header, no footer,…) 2. Arange 12 tickets in the form of 3 x 4 on one page, 3. Two rows are same, 4. Numbers in the center of the ticket which is increasing. I use the following code to make it. but I think that there is a better and simpler way to do it which I don’t know. I hope that someone give me a nicer way to do it. Thank you for reading. Best regards, Dalyoung \setuppapersize[A4]%[A4] \setuplayout[ width=210mm, height=297mm, topspace=0pt, backspace=0pt, header=0mm, footer=0mm, margin=0mm, bottomspace=0mm ] \startuseMPgraphic{ticket}{i,j} path p,q; pair A,B; p := unitsquare xyscaled (67mm,73mm); A := point 0.5 of p; B := point 2.5 of p; draw p; label(textext("Text"), .25A+.75B ); label(textext("\tfd " & decimal (3*\MPvar{i}-\MPvar{j})), center p); label(textext("Text"), .75A + .25B); \stopuseMPgraphic \starttext \dorecurse{4}{ \startcombination[3*1]%distance=0mm] {\useMPgraphic{ticket}{i=\recurselevel,j=2}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=1}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=0}}{} \stopcombination \startcombination[3*1]%distance=0mm] {\useMPgraphic{ticket}{i=\recurselevel,j=2}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=1}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=0}}{} \stopcombination } \page \dostepwiserecurse{5}{8}{1}{ \startcombination[3*1]%distance=0mm] {\useMPgraphic{ticket}{i=\recurselevel,j=2}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=1}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=0}}{} \stopcombination \startcombination[3*1]%distance=0mm] {\useMPgraphic{ticket}{i=\recurselevel,j=2}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=1}}{} {\useMPgraphic{ticket}{i=\recurselevel,j=0}}{} \stopcombination } \stoptext

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Re: conversion from realpage to pagenumber
by mf 12 Jan '24

12 Jan '24

Il 12/01/24 10:39, Henning Hraban Ramm ha scritto: > Am 12.01.24 um 10:18 schrieb mf: >> Hello list, >> >> how do I convert the realpage number to a page number? >> >> Suppose you have a document with a frontmatter of 20 pages in roman >> numerals, followed by the main text starting from page 1 in arabic >> numerals. >> >> So the twelfth page is 'XII', while the twenty-second is '2'. >> >> How do I get 'XII' from 12 and '2' from 22? > > try \realpagenumber > The right one would be \userpagenumber, but it works only with the current page. The code for registers does that translation -- from an arbitrary realpage of your document to the corresponding user page number, with the right formatting -- but I could not find the code that does that in strc-reg.* source files. Massi

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Re: LMTX schema for poster
by Henning Hraban Ramm 12 Jan '24

12 Jan '24

Am 11.01.24 um 22:04 schrieb Bruce Horrocks: > 1. "ConTeXt" should be the biggest word - or as an obvious title for the poster, away from the actual drawing. This will be only a part of the poster. I imagine a 3x3 grid with a title above and some information (website etc.) below. The 9 elements of the grid will be - such a diagram that explains the building blocks / general workflow – the diagram of the layout areas – the project structure (environment, product, component) – some examples of code and results I wanted to use the “christmas card” squares for borders around and inbetween. > 2. Don't add the "MkXL" bit - it's a distracting detail that no one needs to know at this stage. Also it looks like "Mk 40" in Roman numerals, or extra large. ok. But “extra large” is intentional, I guess. > 3. I though Hans had stopped using the TeX style capitalisation now i.e. just "Context"? Hans uses different versions. We use “context group”, but I keep ConTeXt; esp. in the context of LaTeX (DANTE booth!), I’d like to stress that it’s still TeX. > 4. It's not clear whether the intersecting boxes are simply decorative or meant to present some sort of logical structure. I'm happy for it to be decorative, in which case fewer labels might be better. ConTeXt “wraps” the LuaMetaTeX binary, since it handles the input as well as the output. I wasn’t sure how to show what controls what. > 5. Similar to the box structure comment is that it's not clear which words I should be looking at. Ask yourself: what word(s) do I want the viewer to remember when they walk away? > > 6. Consider swapping the TeX and MetaPost circles so that Lua, MetaPost and TeX are read left to right as they appear in the acronym LMTX. Perhaps invert the "triangle" so that there are two circles at the top. My first idea was to show that TeX and MP are under Lua control, but Hans disagreed. So while the 3 subsystems interact, I wanted to keep TeX on top. > 7. It doesn't really tell the viewer that Context is a typesetting system - it looks like it is a system for producing XMLs and PDFs. (Which is what it is but... much more) I’ll show some typography on the poster, and there will be books around. > 8. Don't forget space for a URL and/or a QR code to the Contextgarden website. See above. > Sorry if the above sounds harsh - not meant to be - just brain storming. No problem, thank you! > I have a suggestion though. Use the Christmas card code / memory game code to produce patterns to use as the dots in the QR code? If the QR is large enough for people to distinguish the individual dots then it would provide a talking point? Or maybe have a copy of the card game to hand and challenge them to find a randomly drawn card in the QR code? I don’t think I understand your intention. I wouldn’t construct a QR code out of other stuff, it would become too big. Hraban

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Chemnitz, Leipzig, Call for Poster
by Henning Hraban Ramm 11 Jan '24

11 Jan '24

Hi folks, in March, there’ll be Linux Days in Chemnitz/Germany (Chemnitzer Linuxtage, https://chemnitzer.linux-tage.de/2024/en/) an OSS fair. DANTE usually has a booth there, and this time I’ll help. I’d like to have a poster that shows off ConTeXt/MetaFun features. Do you have suggestions or (even better) would you like to create it? It would be nice to have for further events (last year I presented ConTeXt at FrOSCon and CCCamp and lacked a poster). In the following week and nearby, there’s Leipzig book fair (including Manga-Comic-Con), https://www.leipziger-buchmesse.de/ It’s always a great experience! Our little publishing house will have a booth again (full of books made with ConTeXt) – please visit me, if you come! Hraban

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[ flowing figures ]
by vm 11 Jan '24

11 Jan '24

How can I wrap an externalfigure into a box that can be placed within running text? Should I wrap the externalfigure into a start/stop buffer, then place it? Some hints? .Floris

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Metapost docs
by Shiv Shankar Dayal 11 Jan '24

11 Jan '24

I see many libraries for Metapost in Context source. Where are these documented? I see Metafun manual as well, but I do not find all the included libraries described. -- Respect, Shiv Shankar Dayal

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Status of Asymptote
by Alexandre Christe 10 Jan '24

10 Jan '24

Dear all, I'd like to know what is the status of Asymptote in Context. To my knowledge, metapost/metafun only support 2D (except with the additional libraries from Roegel, which would have to be cleaned up a bit). Otherwise, what shall be used for 3D drawings in Context? TikZ? Something else? Thanks in advance. Alex

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