June 2025 - ntg-context - Mailing Lists

Time stamp on PDFs
by John Was 20 Jun '25

20 Jun '25

I have figured out how to place a date stamp on my PDFs (outside of the printable area bounded by crop marks) but I would ideally like to include the time of processing as well. I don't see anything like the plain TeX primitive \time (and when out of curiosity I tried '\the\time' this returned a mysterious number - today it is '691' - which doesn't seem relevant). Best wishes John *🇪🇺 * Слава Україні! * 🇺🇦* <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free.www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Predefined output intents:
by jbf 19 Jun '25

19 Jun '25

I know I have raised this before, but I continue to be confused. I spoke with our printer dept and they told me I need to use Coated FOGRA39 (ISO 12647-2:2004) as intent. 1. I checked the wiki and it tells me that Predefined output intents includes the above intent. But my log file tells me: backend > profiles > profile specification 'Coated FOGRA39' not found in 'colorprofiles.xml, colorprofiles.lua'. (I am using ConTeXt ver: 2022.08.25) 2. I checked on the internet re colorprofile files and it tells me that I can download Coated_Fogra39L_VIGC_300.icc as an icc version that is commonly used by Adobe and I feel sure it would be sufficient for my printer's purposes. I placed it where the other profile files are located in the ConTeXt tree /context/tex/texmf-context/colors/icc/profiles 3. It is still not recognised, but perhaps I have to run a command for that to happen. My question(s): - is my procedure correct? In other words, can I place such a file in the profiles subfolder and expect it to work? - do I need to run a particular context -- command for this to happen? Julian

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Diacritic in variable fonts
by paper＠mgrz.de 18 Jun '25

18 Jun '25

Hi, I really like the idea of using a single font and only changing variables and using it for the whole document. Ubuntu Sans (Variable) makes this possible, but upper diacritics (eg. Ä) are not scaled when width is changed, the lower diacritics (eg. ą) seem to work as desired. Unfortunately, I can't narrow down the problem any further. I can change the width with Google Fonts without any errors, and Inkscape doesn't cause any problems either. How can I fix that? Thanks for support mwe : Context Version; 2025.06.12 14:21 \definefontfeature [fntubuntf] [axis={wght=300,wdth=75}] \definefontfamily [ubuntufont] [ss] [Ubuntu] [tf={file:{UbuntuSans[wdth,wght].ttf},features:fntubuntf,}] \setupbodyfont [ubuntufont, ss] \starttext ÄöÖöÜü \stoptext

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Using Kurinto: Cursive/Slanted
by Mike Urban 18 Jun '25

18 Jun '25

I continue to be stumped by font stuff. I want to use the cursive-style font (font family Kurinto TRom) for italics, but still use the normal oblique style for slanted. But the naïve/obvious approach doesn't do it—italics are unaffected. Help? Here's what I tried: \starttext \definefontfamily[Kurinto] [rm] [Kurinto Text][it=file:KurintoTMod-It] %\definefontfamily[Kurinto] [it] [Kurinto TRom] % Doesn't work either \definefontfamily[Kurinto] [sl] [Kurinto Text] \definefontfamily[Kurinto] [ss] [Kurinto Sans] \definefontfamily[Kurinto] [mono] [Kurinto Mono] \definefontfamily[Kurinto] [mm] [Latin Modern Math] \setupbodyfont[Kurinto,12pt] \startbuffer[line] The quick brown fox jumps over \stopbuffer \startbuffer[sample] \startTABLE \NC \type{\normal} \NC \normal{\getbuffer[line]} \NC \NR \NC \type{\italic} \NC \italic{\getbuffer[line]} \NC \NR \NC \type{\slanted} \NC \slanted{\getbuffer[line]} \NC \NR \NC \type{\bold} \NC \bold{\getbuffer[line]} \NC \NR \NC \type{\bolditalic} \NC \bolditalic{\getbuffer[line]} \NC \NR \NC \type{\boldslanted} \NC \boldslanted{\getbuffer[line]} \NC \NR \NC \type{\smallcaps} \NC \smallcaps{\getbuffer[line]} \NC \NR \stopTABLE \stopbuffer \startlines \type{\serif} \serif{\getbuffer[sample]} \stoplines \stoptext

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Cropmarks
by John Was 18 Jun '25

18 Jun '25

Hello I'm getting to grips with page layout and hope that it will be possible to set up crop marks on all four corners of each page. Currently when I give 'marking=on' I'm getting a crop mark top left on an odd-numbered page and top right on an even-numbered page, and it does look as if these are in the correct position; but the printer will want all four corners of each page to be demarcated, and I haven't found a setting to achieve that. Best wishes John *🇪🇺 * Слава Україні! * 🇺🇦* <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free.www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Re Re: issue of columnset
by wangzhongtian 18 Jun '25

18 Jun '25

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issue of columnset
by wangzhongtian 17 Jun '25

17 Jun '25

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Can Bytemaps be overwritten?
by Keith McKay 17 Jun '25

17 Jun '25

Hi all, I've been doing some testing to see if bytemaps can be overwritten as a way of reusing them and came up with the code below. The MPpage page 1 should, if my thinking is correct, give three unitsquares coloured red, blue, and green. However it seems the squares are all coloured green. To get what I expected I rewrote the code as in MPpage page 2, but to get the desired outcome I had to create 3 bytemaps. So, does this mean that bytemaps can't be overwritten, or am I missing something? Best Wishes Keith \starttext \startMPpage %page 1 color newColor; newbytemap 1 of (250,250,3); p := 0; for i = 1 upto 3: for x := 0 upto 249: for y := 0 upto 249: if i = 1: newColor := \MPcolor{red}; elseif i = 2: newColor := \MPcolor{blue}; else: newColor := \MPcolor{green}; fi; setbyte (x,y) of 1 to (newColor * 255); endfor; endfor; p := p + 259; fill unitsquare scaled 250 shifted(p - 259,0) withbytemap 1; endfor; \stopMPpage \startMPpage%page 2 color newColor; p := 0; for i = 1 upto 3: newbytemap i of (250,250,3); for x := 0 upto 249: for y := 0 upto 249: if i = 1: newColor := \MPcolor{red}; elseif i = 2: newColor := \MPcolor{blue}; else: newColor := \MPcolor{green}; fi; setbyte (x,y) of i to (newColor * 255); endfor; endfor; p := p + 259; fill unitsquare scaled 250 shifted(p - 259,0) withbytemap i; endfor; \stopMPpage \stoptext

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New user here!
by John Was 16 Jun '25

16 Jun '25

Good day, Contexters I've been using plain TeX for many years (EmTeX, if anyone can remember that, and latterly XeTeX), but my motivation for getting acquainted with ConText, rather late in life, is the need to produce tagged PDFs that will be accessible to the visually impaired (generally using an audio reader), and I understand (or at least hope) that ConText can help with that. I'm only just getting started with the *Not so Short Introduction*, and of course have many questions which I think/hope I will be able to answer myself from the documentation: I've not managed to load pstricks or edmac, for example, but this must be possible, and some primitives such as \baselineskip seem to have disappeared, together with the font-call system I'm used to: \font\umirtenpointsevenfive = "MinionPro-Regular:+onum:mapping=tex-text:letterspace=1.6" at 10.75pt All that will come as I read the instructions, but what I'm most interested to achieve is tagging that will not only produce the usual column of bookmarks at the left-hand side but will also allow an audio reader to read such things as alt-text for illustrations and, crucially, read a heavily footnoted text in the correct order. For this I take it that the footnotes will have to be tagged in a special way, allowing visually impaired readers either to suppress them as the text is read out, or else to include them at the point where the cue occurs, then revert back to the main text. With my XeTeX-produced PDFs an audio reader will simply read all of the main text on a page, then the footnotes (the last of which may be split between pages), and then start again on the next page - clearly annoying and unacceptable to those who can't see the PDF. I'd be most grateful to be pointed in the right direction - or is what I've outlined simply not achievable? Best wishes John *🇪🇺 * Слава Україні! * 🇺🇦* <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free.www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

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Re: Can Bytemaps be overwritten?
by Keith McKay 16 Jun '25

16 Jun '25

Ooops! I meant "is not too badly bruised." Keith On 16/06/2025 11:36, Keith McKay wrote: > Hi Hans, > Thanks for your reply and I hope your head is too badly bruised. > Unfortunately it was not what I was looking for, interesting that it > is. I don't think my MWE was very well formed so I show below the > relevant snippet of code from the noise stuff I am doing which I hope > makes things clearer. > I wanted to show how the noise patterns changed when I changed some of > the variables in the vardef sumOctave(). In the examples below I vary > the z coordinate, keeping other variables constant, to show the > changed noise pattern. > In page 1 I create three bytemaps, one for each z variable and you can > see in the attached pdf that we get three different noise patterns in > page one as expected. I then thought, could I do the same thing by > using 1 bytemap and overwriting it? By this I mean create a bytemap > and fill it with data, using that data fill a unitsquare with that > bytemap, take the original bytemap and again fill it with different > data and fill a unitsquare with the overwritten bytemap. My attempt at > this is page two. I had expected the three same images as page one, > however, I get three images which are identical to the final z value > of 1000. I hope this makes it clearer. > Thanks again for your help > Keith

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