August 2024 - ntg-context - NTG Mailing Lists

BUG(?): mailing list archive formatting
by Jim 02 Sep '24

02 Sep '24

To whomever might be able to do something about this: The "quoting" on the mailing list archive seems to have a bug. For example, in https://mailman.ntg.nl/archives/list/ntg-context@ntg.nl/thread/NZOIVLVPZHHM… in Hans' response of 27 Aug 1:07 a.m., it has "There are three ways" attributed to contact(a)0vladimirgrbic.com, whereas in the email I received those four words (appear to) come from Hans. Is this something that someone can (and cares to) fix? Cheers. Jim

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registers in footnotes as page glossaries
by Pablo Rodriguez 31 Aug '24

31 Aug '24

Hans, I wonder whether MkXL may have page registers for footnotes. This would be great to have page glossaries, such as in https://geoffreysteadman.com/wp-content/uploads/2017/08/lysiascrito-24aug17… (first apparatus). To be fair, I have asked that a while ago (with MkIV). It would be great to have these page glossaries as language aids. Right now, they need to be composed manually (using a word processor, no TeX). Many thanks for your help, Pablo

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for loop not working in metapost
by Shiv Shankar Dayal 30 Aug '24

30 Aug '24

Hi, I have plotted a log function and I want to draw an xy axis grid. Below is the code \starttext \startMPcode draw function(1,"x", "log(x)", .1, 10, .01) scaled 1cm; for i = 0 upto 10: draw (i*cm, -5cm) -- (i*cm, 5cm) dashed; endfor; for i = -5 upto 5: draw (0, i*cm) -- (10cm, i*cm) dashed; endfor; \stopMPcode \stoptext My first for loop draws lines but the second gives me an error. Please help. -- Respect, Shiv Shankar Dayal

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BUG REPORT: Italic Correction in ConTeXt LMTX
by contact＠vladimirgrbic.com 30 Aug '24

30 Aug '24

Hello, I started using ConTeXt LMTX 2 days ago and after some initial testing I noticed an unexpected behavior regarding italic correction. In short, I cannot seem to produce italic correction like I could in plain TeX or even LaTeX. I've asked the question on TeX StackExchange and another user confirmed the suspicion in his answer. I would suggest you take a look at it because the formatting of the question and the answer is prettier than in this plain text email. Furthermore, a person who provided the answer already did some research. See the question here: https://tex.stackexchange.com/questions/724568/how-to-invoke-italic-correct… Here is what I observed: Compare the kerning produced in between 'r' and 'p' in the word "airport" when italic correction is applied in plain TeX (compiled with `pdftex`) and in ConTeXt LMTX (compiled with `luametatex`). Here are the minimal working examples. Plain TeX ``` airport (regular font) {\it air\/}port (italic correction applied) {\it air}port (no italic correction applied) \bye ``` ConTeXt LMTX ``` \starttext airport (regular font) {\it air\/}port (italic correction applied) {\it air}port (no italic correction applied) \stoptext ``` Please confirm if this, in fact, is the issue/bug or if I am not approaching this correctly. I am brand new to ConTeXt, so it could be me. Thank you in advance! Vladimir

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Defining mathsymbols from unicode char
by Jethro Djan 29 Aug '24

29 Aug '24

Dear all, 1. I am trying to define the "pitchfork" unicode character( https://unicodeplus.com/U+22D4) to use in ConTeXt as stated on page 387 of new math manual authored by Hans and Mikael: \definemathsymbol[pitchfork][relation]["22D4] It works with some unicode characters and not others (like this character). What can I do to make it work? 2. I would like a \not\perp symbol but it doesn't draw the stroke on top of the symbol. I know you could manipulate this in a plain TeX but I am thinking the mechanism in ConTeXt would be different. How can I achieve this? Also how can I get the \notperp symbol in the accepted answer of https://tex.stackexchange.com/questions/27651/symbol-about-not-orthogonalit… ? Thanks. Jethro

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MetaPost dirtree?
by Henning Hraban Ramm 29 Aug '24

29 Aug '24

Hi, did someone already create directory trees with MetaPost? It should be quite easy, but I couldn’t find examples and was thinking about porting the LaTeX dirtree package (i.e. look at the code and try to implement something similar in Lua and MP). I have ideas… (but I have always too many of them). So far, I used the output of `tree`, and that’s not really beautiful. Hraban

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pdf properties
by Thomas Meyer 29 Aug '24

29 Aug '24

Hi, how can I set the pdf document properties with ConTeXt. For example, so that a document can be printed but not copied, etc. Thanks for any advice Thomas

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Help with Metapopst code
by Shiv Shankar Dayal 28 Aug '24

28 Aug '24

Hi, Consider following code: vardef polygon_with_side(expr n, s) = save a, b, r; numeric a, b, r; a * n = 360; a + 2b = 180; r = s * sind(b) / sind(a); for i = 0 upto n-1: (0, r) rotated (a * i) -- endfor cycle enddef; beginfig(1); path p; p = polygon_with_side(21, 20); draw p; endfig; bye; It draws a polygon with 21 sides with radius 20. I understand all of it except the for loop. What is (0, r) rotated (a *i) doing? -- Respect, Shiv Shankar Dayal

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Is there a way to apply withpattern to text, like fillcolor in lmt_outline[].
by ai2472206007＠yeah.net 28 Aug '24

28 Aug '24

hi , Is there a way to apply withpattern to text, like fillcolor in lmt_outline[]. what I envisaged: https://imgse.com/i/pAAkfjf I've found someone who has asked a similar question, just a combination of the two functions : lmt_outline[] and lmt_shade[] in that question. question from https://mailman.ntg.nl/archives/list/ntg-context@ntg.nl/thread/D5GBGF3RXN75… However, this example didn't work successfully on the Mac, it just showed a background color block. Best Wishes Muyik

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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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