June 2022 - ntg-context - NTG Mailing Lists

Re: [NTG-context] Count (and limit) glyphs per line?
by Benjamin Buchmuller 26 Jun '22

26 Jun '22

I completely agree, Hans, that such specifications are often made without a second thought on them. And Max is probably right that they originated from the typewriter area. In a sense these "challenges" can be at least somewhat educational. I've learnt---also thanks to Max's suggestions---a fair amount on LMTX. So, I'm looking forward to see how the "crappyspec" parbuilder will finally look like. Thank you very much for the demo, looks very impressive! Best Benjamin

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"mtxrun --scripts cache --erase" not working?
by Pablo Rodriguez 26 Jun '22

26 Jun '22

Dear list, as reported some months ago (https://mailman.ntg.nl/pipermail/ntg-context/2022/105420.html) "mtxrun --scripts cache --erase" doesn’t erase the cache at all. Could anyone confirm this issue (which I experience on both Linux64 and Win64)? Many thanks for your help, Pablo

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Cron <context@zapf> /var/www/aanhet.net/context/bin/cron/context-mirror
by root＠ntg.nl 25 Jun '22

25 Jun '22

rsync: failed to connect to rsync.pragma-ade.nl (213.125.29.165): Connection timed out (110) rsync error: error in socket IO (code 10) at clientserver.c(125) [Receiver=3.1.2]

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Radiobuttons again...
by Henning Hraban Ramm 25 Jun '22

25 Jun '22

Hi Hans, I know you hate form widgets, but I found a clue what might be wrong with radiobuttons. While we can’t fix the behaviour of viewers, ConTeXt’s radiobuttons misbehave if they don’t have a custom symbol (that OTOH is not shown in many viewers). If I don’t use a custom symbol in \definesubfield, all subfields are activated together, which is clearly wrong. I hope that’s an easy fix. Hraban """ \setupinteraction[state=start] \setuppaper[a6,landscape] \setupfield[CGradio][frame=off, height=1em, width=1em] \definefield[CGjoin][radio][CGradio][CGPerson,CGCompany][CGPerson] \definesubfield[CGPerson][][] % doesn’t work \definesubfield[CGCompany][][] \definefield[CGjoinA][radio][CGradio][CGPersonA,CGCompanyA][CGPersonA] \definesubfield[CGPersonA][][x,-] % works, but ugly \definesubfield[CGCompanyA][][x,-] \starttext I’d like to join CG as a \field[CGPerson]\ person / \field[CGCompany]\ company. I’d like to join CG as a \field[CGPersonA]\ person / \field[CGCompanyA]\ company. \stoptext """

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return a labeltext with color...
by Willi Egger 24 Jun '22

24 Jun '22

Hi all, Sorry for bothering you again. I would like that lua is returning a colored string, which is a label-text. The following does not work, the labeltext remains black, there is no error though: return context.color({"red"},context.labeltext(s)) What is the correct approach? Thanks for enlighten me :-) Willi

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missing mails
by Hans Hagen 24 Jun '22

24 Jun '22

Hi, I just found otu that the majority of the mailing list mails ended up in a different mail box (som,ehoe thunderbird has problems with two accounts being subscribed to the same list). So, if there has been serious issues not resolved (the last year) let me know. A quick checked that most got answered in some way, 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 -----------------------------------------------------------------

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Failing \doifemptyelse
by Willi Egger 24 Jun '22

24 Jun '22

Good evening gurus! Why is the minimal example failing? i.e. executing always the else-branch? \setuppapersize[A6][A6] \setvariables [Test] [Number=] \starttext Value of variable Number before test: \getvariable{Test}{Number} \crlf \doifemptyelse{\getvariable{Test}{Number}} {\dorecurse {5} {TEST} } {Nothing defined \par Contents of variable Number: \getvariable{Test}{Number} } \stoptex I am using ConTeXt version 2022.05.11 11:36 LMTX fmt: 2022.6.15 Kind regards Willi

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Detailed citation of reference
by Johann Birnick 24 Jun '22

24 Jun '22

Hi there, using \cite[myreference] I will get a result like "[1]", or I could also change the "1" into some more detailed information such as a tag. However, I want to obtain something like "[1, section 2.1]". How can I achieve this? Thank you very much, Johann

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Graphviz and ConTeXt
by juh 24 Jun '22

24 Jun '22

Dear all, I have a legacy project that I shall convert to a new ConTeXt project. There are a lot of Graphviz dot-files. What shall I do with these? Any hints? juh -- Autoren-Homepage: ......... http://literatur.hasecke.com Satiren & Essays: ......... http://www.sudelbuch.de Privater Blog: ............ http://www.hasecke.eu Netzliteratur-Projekt: .... http://www.generationenprojekt.de

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colors and contours in luametafun
by Jacob Kauffmann 23 Jun '22

23 Jun '22

Dear list, I am a huge fan of the new metafun interface. Hans asked for luametafun requests, so here are a few. - color by value in lmt_surface We want to show a surface plot of a function where the color indicates the function value (instead, or in addition to a light source). The easiest would be to have variable cf for the brightness factor (as it is), and in addition variables such as zt, minz, maxz, akin to the color formatter for lmt_contour. This becomes handy when colors are to be aligned with function values (e.g. negative = blue, zero = white, positive = red, see MWE attached). - controlling line levels in lmt_contour It would be convenient if certain levels could be set by the user. E.g. to make sure the zero level contour line is included. The user interface could potentially take a list, levels = { -1, -.5, 0, .5, 1 }, of contour level lines. See MWE attached. From my understanding marching squares can do that. A possible reference implementation could be QuadContourGenerator [1] in matplotlib, a bit of description can be found in [2]. - colormaps Contour plots often use rather complex colormaps, such as jet, rainbow or veridis. They are optimized for perceptual resolution, color blindness, screen/print or certain use cases. The functionality is already there, but from a user's perspective, it would be much easier if some of these were provided by the interface. The interface could be color = "colormap('jet')(l/n)". Indeed, these are useful in other use cases as well, such as bar charts, surface plots or shades. One rudimentary example is in the attached file. - number of levels in lmt_contour (potential bug) The number of levels is different from the user's input. Depending on the output range it can be lower or higher (see MWE attached). Cheers, Jacob Kauffmann [1] https://github.com/matplotlib/matplotlib/blob/96ff1146ad053c5c7481efd9de039… [2] https://github.com/matplotlib/matplotlib/blob/96ff1146ad053c5c7481efd9de039…

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