ntg-context August 2021

ntg-context@ntg.nl

47 participants
101 discussions

one quick remark about textext.dflt (vs textext.dlft)
by Garulfo 05 Sep '21

05 Sep '21

Hi all, one remark, I was expecting to be allowed to use textext.dlft but finally the appropriate command appears to be textext.dflt which require to switch F and L letters. Is it on purpose ? would it make sense to have a dlft version to match LeFT ?

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new upload
by Hans Hagen 31 Aug '21

31 Aug '21

Hi, new in this upload are some features in tabulate (not all enabled yet), like \starttabulate[|lG{.}|cG{,}|rG{=}|cG{x}|] \NC 1.1 \NC 2,2 \NC 3=3 \NC a 0xFF \NC \NR \NC 11.11 \NC 22,22 \NC 33=33 \NC b 0xFFF \NC \NR \NC 111.111 \NC 222,222 \NC 333=333 \NC c 0xFFFF \NC \NR \stoptabulate \starttabulate[|lG{}|lG{}|] \NC \showglyphs \setalignmentcharacter{.}1.1 \NC \setalignmentcharacter{.}1.1 \NC\NR \NC \showglyphs \setalignmentcharacter{,}11,11 \NC \setalignmentcharacter{,}11,11 \NC\NR \NC \showglyphs \setalignmentcharacter{=}111=111 \NC \setalignmentcharacter{=}111=111 \NC\NR \stoptabulate \starttabulate[|lG{.}|lG{}|] \NC 1.1 \NC \setalignmentcharacter{.}1.1 \NC\NR \NC 11.11 \NC \setalignmentcharacter{.}11.11 \NC\NR \NC 111.111 \NC \setalignmentcharacter{.}111.111 \NC\NR \stoptabulate \starttabulate[|lG{.}|rG{.}|] \NC foo.bar \NC foo.bar \NC \NR \NC oo.ba \NC oo.ba \NC \NR \NC o.b \NC o.b \NC \NR \stoptabulate \starttabulate[|cG{d}|] \NC \smallcaps abcdefgh \NC \NR \NC xdy \NC \NR \NC \sl xdy \NC \NR \NC \tttf xdy \NC \NR \NC \tfd d \NC \NR \stoptabulate The G option is like g but better so it sort of replaces it. updated: lowlevel-expansion (also discusses luametatex) new : lowlevel-alignments (also discusses luametatex) 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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JavaScript controlled button appearance
by Pablo Rodriguez 30 Aug '21

30 Aug '21

Dear list, I have the following sample: \setupinteraction[state=start] \setupbodyfont[heros] \startJSpreamble varia used now function SwitchFS() { app.fs.isFullScreen = !app.fs.isFullScreen; } \stopJSpreamble \starttext \startTEXpage[offset=10pt] \goto{fs}[JS(SwitchFS{})] \stopTEXpage \stoptext How can I get that the "fs" in the text is replaced with "x" when JavaScript detects that the screen is in full screen mode? Many thanks for your help, Pablo -- http://www.ousia.tk

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problem with MkIV/TeXlive/TEXMFCACHE
by rjhb＠bb-c.de 30 Aug '21

30 Aug '21

Dear experts, I want to use ConTeXt MkIV as supplied by TeXlive 2021. After installation, I ran "mtxrun --generate". I also tried "context --generate". Both create output in the wrong place. The TeXlive documentation says that ConTeXt uses TEXMFCACHE, which uses the default $TEXMFSYSVAR;$TEXMFVAR in my texmf.cnf. My TEXMFSYSVAR is /var/opt/texlive, but ConTeXt doesn't use it. Instead, it creates /opt/texmf-var and creates its output there. I don't understand why it used that path; I've never used or configured it. How can I convice ConTeXt to use TEXMFSYSVAR? Or is this a question for the TeXlive folks? Thanks for looking at this. Regards, Rainer

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Re: [NTG-context] Gradient fill in embedded pdf disappear in externalfigure (on regular pages)
by Benjamin Buchmuller 30 Aug '21

30 Aug '21

(For the record on the list, I attach a small res screenshot to illustrate the matter, description below; My apologies for any inconvenience.) On Aug 30, 2021, at 09:36, Benjamin Buchmuller <benjamin.buchmuller(a)gmail.com> wrote: Sorry, I've been probably a bit unclear. The file to look at is "test.pdf" (first and second page). This is a screenshot of what I see (attached): * in the embedded png (as reference for how the original pdf looks like) the gradients are (no surprise) visible. Green to read for the ellipse and in the rod using a white-to-gray gradient. * in the embedded pdf (what I would like to do eventually) both gradients disappear. However, when I use \startTEXpage ... \stopTEXpage around the \externalfigure, everything looks and prints fine. <Screen Shot 2021-08-30 at 09.32.14.png> > On Aug 30, 2021, at 08:54, Hans Hagen <j.hagen(a)xs4all.nl> wrote: > > On 8/30/2021 7:03 AM, Benjamin Buchmuller via ntg-context wrote: >> Hello list, >> I have noticed that some gradients get lost when embedding an external figure from a pdf (Preview and Acrobat DC and in printer), although the original pdf works fine for me. > > you have to be a bit more precise in desribing what you expect because i don't see it ... there's a pdf and lowres png .. these are different anyway, the low res png has some anti aliasing > > 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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Re: [NTG-context] Gradient fill in embedded pdf disappear in externalfigure (on regular pages)
by Benjamin Buchmuller 30 Aug '21

30 Aug '21

How odd; Then it must be related to my viewer here ... I was just surprised to literally see two different outcomes with the \startTEXpage and without. Maybe it has to do with some sort of "nesting" in the PDF that is not handled correctly at the PDF viewer's end. I'll test again on a different machine (and with the printing company) when I'm back to work. Thanks for having looked into it! > On Aug 30, 2021, at 10:50, Hans Hagen <j.hagen(a)xs4all.nl> wrote: > > attached is what i get and i see the green shading here > > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > ----------------------------------------------------------------- > <x.pdf><x.tex>

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Best way to apply a fill-pattern to a closed shape?
by Ramkumar KB 30 Aug '21

30 Aug '21

Hello List, I have a use case to apply a particular pattern to a closed shape. I am using Metapost for the figures. After some research this package seems to quite good, in terms of having all the patterns normally used - https://ctan.org/pkg/minim-hatching But I could not figure out how to use this with ConTeXt. Or maybe there is already a better way to do this in ConTeXt and am missing that trick. Any tips would be really helpful. Thank you. Best regards, Ramkumar

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Gradient fill in embedded pdf disappear in externalfigure (on regular pages)
by Benjamin Buchmuller 30 Aug '21

30 Aug '21

Hello list, I have noticed that some gradients get lost when embedding an external figure from a pdf (Preview and Acrobat DC and in printer), although the original pdf works fine for me. It seems to occur with color-to-color gradients (but not all), but not with color-to-alpha ones. While preparing a MWE, I further realized that I get the correct output when between \startTEXpage ... \stopTEXpage \starttext Embedded via \type{\externalfigure} PNG \externalfigure[drawing.png][width=72.631mm,height=21.702mm] \blank[big] PDF \externalfigure[drawing.pdf] \startTEXpage % this "works" Embedded via \type{\externalfigure} in \type{\startTEXpage ... \stopTEXpage} PNG \externalfigure[drawing.png][width=72.631mm,height=21.702mm] \blank[big] PDF \externalfigure[drawing.pdf] \stopTEXpage \stoptext Any hints what I would need to change in order to get the gradients also in non-TEX-page mode? I attach the two original files and the output produced with this MWE. Thanks! Benjamin

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"$==$ this" producing = with another = through the t
by Paul Dostert 29 Aug '21

29 Aug '21

My Minimal: \starttext $==$ this $f(x)= x^2$ \switchtobodyfont[times] $==$ this $f(x)= x^2$ \switchtobodyfont[modern] $==$ this $f(x)= x^2$ \stoptext This is producing an =, a large space (about two characters wide), then an = through the start of the word "this". See pdf here: https://pdfhost.io/v/a0WMsyE9E_untitled2.pdf Also notice the odd spacing in between the f and ( in $f(x)$ for times (but not modern). It all works perfectly fine on https://live.contextgarden.net/. I'm in Windows and here is the version output: mtx-context | ConTeXt Process Management 1.04 mtx-context | mtx-context | main context file: C:/context/context-win64/tex/texmf-context/tex/context/base/mkiv/context.mkiv mtx-context | current version: 2021.08.24 22:16 mtx-context | main context file: C:/context/context-win64/tex/texmf-context/tex/context/base/mkxl/context.mkxl mtx-context | current version: 2021.08.24 22:16 It's been happening for a good two weeks now. I've trashed the Context folder, reinstalled two different times over the past couple of weeks, and the result is the same each time. I've also reloaded my fonts using mtxrun --script fonts --reload --force as I kind of assumed this is some sort of font-spacing issue. I also had an issue where double f's were producing a single f (stuff was outputted as stuf) but that went away after my last update. I'm likely doing something stupid, but just can't seem to find it. Sorry to bother you all, but $==$ ends up being a good portion of my lecture on Boolean expressions. Thank you for the help. Regards, Paul

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Handling of negative values in the statistical-charts?
by Ramkumar KB 29 Aug '21

29 Aug '21

Dear List, I have been exploring the use of the awesome statistical-charts <https://akela.mendelu.cz/~thala/statcharts/> module. So first of all, a big thanks to the authors of the same. I seem to have hit a snag when it comes to handling of -ve values. In my example (attached tex & pdf), the y-axis labels and the grids do not seem to be working on the -ve side (also, able to flip labels above x-axis for -ve values). This seems to be the case of column charts and bar charts (and I will test this for the other types of charts also). If this is a more generic issue across all the types, then I can contribute towards enhancing it (as any charts module should handle -ve values). Any tips or pointers would be really helpful. Thank you very much. best regards,

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ntg-context August 2021