August 2024 - ntg-context - NTG Mailing Lists

Questions regarding fonts: obliques (fake italics), ligatures and kerning
by Gerion Entrup 28 Aug '24

28 Aug '24

Hi, I played around with different fonts, especially Bitstream XCharter and Overpass (http://overpassfont.org/) and wanted to combine them. However, I see some issues regarding ligatures, kerning and obliques/italics. Here is a minimal example: ``` \definefontfeature[default][mode=node, kern=yes, liga=yes] % more features % [mode=node, kern=yes, liga=yes, tlig=yes, itlg=yes, ccmp=yes, language=dflt, protrusion=quality, expansion=quality] \definefontfamily [myfont][roman][xcharter] \definefontfamily [myfont][sansserif][overpass][rscale=0.93] \definefontfamily [myfont][teletype][overpass][rscale=0.93] \definefontfamily [myfont][mono][overpassmono][rscale=0.93] \definetypeface [myfont][mathematics][math] [xcharter] \setupbodyfont[myfont, 11pt] \startTEXpage \showfontkerns Vitae, Vase, LT, VA, Y., Effizient, abcdel™, \italic{effi abcdel™}, \slanted{effi abcdel™}\\ \style[sans]{Vitae, Vase, LT, VA, Y., Effizient, abcdel™, \italic{effi abcdel™}, \slanted{effi abcdel™}}\\ \style[mono]{Vitae, Vase, LT, VA, Y., Effizient, abcdel™, \italic{effi abcdel™}, \slanted{effi abcdel™}}\\ \showbodyfont[myfont] \stopTEXpage ``` It produces the PDF in the attachment. I'm struggling with several things: - xcharter seems to have no kerning applied. It is listed as font feature, though. Is it correct to have no kerning at all for that font? - xcharter also have no ligatures (at least it doesn't look like that). That is listed as font feature, too, although only for italic and slanted. According to https://tug.org/FontCatalogue/xcharter/ there are ligatures in the font. - Overpass has a glyph for the ae ligature. Is it normal that it is not used as a ligature for ae? - Overpass Mono does not contain italic glyphs. I would have expected obliques when using \slanted then. However, it just remains normal. - I included the ™ in the example since its italic glyph is not slanted. For all fonts \slanted seems to switch to the extra (italic?) glyphs, while I would have expected obliques. At least overpass seems to have no dedicated slanted style, while xcharter has one. - Is there a command to show ligatures the same way there is a command for kerning? I attached the output of the following commands, too: mtxrun --script font --list --file --info --pattern='xcharter*' mtxrun --script font --list --file --info --pattern='overpass*' Thanks Gerion

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About the font used in the document mathincontext-paper.pdf
by Fabrice Couvreur 27 Aug '24

27 Aug '24

Hello, I read this very good document and it says that it was written with the Pagella font. I use this font with a simple \setupbodyfont[pagella,11pt] but I find that the rendering is not the same as on the document, it is less nice especially in the writing of the theorems with the text in italic. Imaginary impression or reality ? Thanks. Fabrice

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documenting namespaces and modules
by Henning Hraban Ramm 27 Aug '24

27 Aug '24

After I got Wolfgang’s slides[1] and code example[2] from the “writing modules” workshop that I requested, I updated several wiki pages: * https://wiki.contextgarden.net/Modules * https://wiki.contextgarden.net/Module_Writing * https://wiki.contextgarden.net/Module_template * https://wiki.contextgarden.net/Module_Namespaces There are probably still errors or outdated relics left. Corrections appreciated. Hraban [1] https://meeting.contextgarden.net/2024/talks/wolfgang/module_howto.pdf [2] https://meeting.contextgarden.net/2024/talks/wolfgang/t-messenger.mkxl

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Numbered equation
by Fabrice Couvreur 27 Aug '24

27 Aug '24

Numbered equation Hello, Assuming i am working in the first chapter, using \startplaceformula ... \stopplaceformula induces a numbered equation (1.1), (1.2), etc How to get (1), (2), etc ? Thanks Fabrice

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chapter counter?
by Henning Hraban Ramm 26 Aug '24

26 Aug '24

Hi, I’d like to check the chapter number like \ifodd\rawcountervalue[chapter] What an odd chapter! \fi but apparently the counter isn’t called "chapter", or I’m doing it wrong otherwise. Could you enlighten me? Hraban

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horizontal line in math align environment
by niklas＠vonhirschfeld.eu 26 Aug '24

26 Aug '24

Hi everyone, I’m working on creating a horizontal line within a math align environment that spans the entire equation, rather than being restricted by the columns. My current "solution" is to use `\hl`, as shown below: ``` \startformula \startalign \NC a + b \NC = c \NR \NC d + e \NC = f \NR \NC \hl[4]\NC \hl[4] \NR \NC g + h \NC = i \NR \stopalign \stopformula ``` While this somewhat works, it’s not exactly what I’m aiming for. I need the line to extend across the full width of the equation. My final goal is something like this: \startformula \startalign[n=11] \NC \NC 1001 \NC \rightarrow \NC 1000 \NC + \NC 000 \NC + \NC 00 \NC + \NC 1 \NR \NC + \NC 100 \NC \rightarrow \NC \NC \NC 100 \NC + \NC 00 \NC + \NC 0 \NR % here should be a horizontal line \NC \NC \NC \rightarrow \NC 1000 \NC + \NC 100 \NC + \NC 00 \NC + \NC 1 \NR \NC \NC \NC \rightarrow \NC 1101 \NC \NC \NC \NC \NC \NC \NR % here should be a horizontal line \NC = \NC 1101 \NC \NC \NC \NC \NC \NC \NC \NC \NR \stopalign \stopformula The horizontal line should not take the height of a hole line. I also considered using `\underline{}`, but it wont span across multiple columns. I’ve heard of `\noalign`, but I couldn’t find any helpful resources on it, and my attempts to use it were unsuccessful. In LaTeX, the desired outcome would be something like this: ``` \begin{equation*} \begin{split} x &= 1 \\ y &= 2 \\ \hline x + y &= 3 \end{split} \end{equation*} ``` Does anyone have suggestions for achieving this effect in ConTeXt? Thank you in advance for your help! Best regards, Niklas von Hirschfeld

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understanding units / dimensions
by Henning Hraban Ramm 26 Aug '24

26 Aug '24

At the meeting I noted a few units that I didn’t know about, while I already knew many. * general units: in, m, cm, mm (ft?) * typographical units: pt, dd, bp, pc, cc, sp * font related: em, ex, fs, fa, fd, fc, ch * layout related: pw, ph, tw, th, cw, cd, lw, hs, vh * frame related: fw, fh, fo * funits: dk, es, tv, eu Are there even more? (Did you know all of them? This will be in the test…) Questions: How differs "1" from "2"? * em fs * lw hs * ph vh I want to update https://wiki.contextgarden.net/Dimensions Hraban

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digits / units setup
by Henning Hraban Ramm 25 Aug '24

25 Aug '24

According to docs, \setupunit[method=3] should change the rendering of numbers in \unit{10,123.99 mm} or \digits{10,123.99} to “10\,123,99”, but it doesn’t. \setdigitmode{3} works, though. Hraban

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[ how to remove speae before (and after) \startitemize ?
by vm 25 Aug '24

25 Aug '24

Any hint as how to remove the automatic default space before and after \startitemize and have equal line spacing between all text lines? \starttext one two three \startitemize[packed] \item one \item two \item three \stopitemize four five six \stoptext

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Is there a short-cut to adding sub-categories for index entries?
by Joel 25 Aug '24

25 Aug '24

I have a document with thousands of index entries. Here’s a samplecode: \starttext Some people livedin \index{cliff-dwelling}cliff-dwellings, while others lived in\index{lean-to}lean-tos. \placeindex \stoptext This produces anindex like this: c cliff-dwelling 1 l lean-to 1 I’d like to createan index with much more sub-categories to find the same entries, forinstance, a category of “dwellings”: c cliff-dwelling 1 d dwellings cliff-dwelling 1 lean-to 1 l lean-to 1 As I’m aware, theway to code this is as follows: \starttext Some people livedin\index{cliff-dwelling}\index{dwellings+cliff-dwelling}cliff-dwellings,while others lived in\index{lean-to}\index{dwellings+lean-to}lean-tos. \placeindex \stoptext I’m wondering ifthere is a short-cut means to set this up, such that if I can tellthe document that any time it sees “cliff-dwellings” in an index,it will also add its page numbers to under “dwellings+cliff-dwelling”? In other words, is there an easierway to add these categories, then to go through the entire documentand mark them? I already have a list of all the words. For instance, in my above code, I must find every \index{cliff-dwelling} entry and add a \index{dwellings+cliff-dwelling} next to it...which would take hundreds of hours if I did that for every word. Is there a quicker way to tell it always also add it under "dwellings" too? --Joel

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