- ntg-context - Mailing Lists

Vector Brushes for MetaFun?
by Henning Hraban Ramm 01 Sep '21

01 Sep '21

Hi, since Jacob started the pony mode, here’s one I’d like to ride: MetaPost pens are constant, i.e. they never change over the length of a path. Commercial vector graphics apps have “vector brushes”, e.g. Adobe Fresco: https://helpx.adobe.com/fresco/using/vector-brushes.html The page nicely shows the necessary variables. In Inkscape you can combine “brush images” like https://publicdomainvectors.org/en/free-clipart/Paintbrushes-for-Inkscape/8… with pen shapes: https://logosbynick.com/custom-brushes-in-inkscape/ This stretches the whole shape over the path – not perfect but good enough (and the same what e.g. “my” Affinity Designer does). (https://affinity.serif.com/designer/) Is this possible with MetaFun, i.e. use a closed path and distort/stretch it along an open path? If, how? Hraban

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Re: [NTG-context] No formula in the pdf (Ursula Hermann)
by Thierry Horsin 01 Sep '21

01 Sep '21

Hi Ursula, I tried your formula. The reason might be because you have two \starttext... Thierry

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Passing colors to Metafun and TeX's bitmapimage macros
by Jairo A. del Rio 01 Sep '21

01 Sep '21

Hi, list! I want to know if there's a handy way to pass predefined colors, either RGB or CMYK, e.g. those in svg or crayola, to Metafun's bitmapimage. Say, something like: \startMPpage % svg's gold definition draw bitmapimage(2, 2, "ffd700 ffd700 ffd700 000000") scaled 3cm; \stopMPpage using "gold" instead of its definition so that I can set bitmap image colors by name rather than numbers. In a similar vein, I wonder if something analogous is possible for ConTeXt's \bitmapimage macro. Thank you in advance. Cordially, Jairo

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No formula in the pdf
by Ursula Hermann 01 Sep '21

01 Sep '21

Dear List I have the following example. \setuppapersize[A4] \mainlanguage[de] \starttext Wir können sogar die gesamte Matrix A über ihre Einträge mit Hilfe der Indizes definieren, indem wir schreiben \startformula A_{ij}=5i \stopformula \starttext Why is there no formula in the pdf? And is that right with A{ij} After compiling i get the following Command Line: context.exe --synctex=-1 "Example1.tex" Startup Folder: C:\Users\Administrator\Documents\My Documents resolvers | formats | executing runner 'run luatex format': C:/texlive/2020/bin/win32/luatex --jobname="Example1" --fmt=C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.fmt --lua=C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9/formats/luatex/cont-en.lui cont-yes.mkiv --c:currentrun=1 --c:fulljobname="./Example1.tex" --c:input="./Example1.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:synctex="-1" --c:texmfbinpath="C:/texlive/2020/bin/win32" This is LuaTeX, Version 1.12.0 (TeX Live 2020/W32TeX) system commands enabled. open source > level 1, order 1, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv' system > system > ConTeXt ver: 2020.03.10 14:44 MKIV beta fmt: 2021.1.18 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-new.mkiv' system > beware: some patches loaded from cont-new.mkiv close source > level 2, order 2, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'Example1', input './Example1', result 'Example1' fonts > latin modern fonts are not preloaded languages > language 'en' is active system > synctex functionality is enabled, expect 5-10 pct runtime overhead! open source > level 2, order 3, name 'C:/Users/Administrator/Documents/My Documents/Example1.tex' modules > 'amsl' is not found fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded backend > xmp > using file 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1, subpage 1 close source > level 2, order 3, name 'C:/Users/Administrator/Documents/My Documents/Example1.tex' close source > level 1, order 3, name 'C:/texlive/2020/texmf-dist/tex/context/base/mkiv/cont-yes.mkiv' mkiv lua stats > used config file: selfautoparent:/texmfcnf.lua;selfautoparent:/texmf-dist/web2c/texmfcnf.lua mkiv lua stats > used cache path: C:/texlive/2020/texmf-var/luatex-cache/context/a86c089b384a3076dc514ba966a1fac9 mkiv lua stats > resource resolver: loadtime 0.165 seconds, 1 scans with scantime 0.003 seconds, 0 shared scans, 12 found files, scanned paths: C:/Users/Administrator/.texlive2020/texmf-config mkiv lua stats > stored bytecode data: 450 modules (0.395 sec), 93 tables (0.013 sec), 543 chunks (0.408 sec) mkiv lua stats > traced context: maxstack: 1398, freed: 0, unreachable: 1398 mkiv lua stats > cleaned up reserved nodes: 56 nodes, 9 lists of 442 mkiv lua stats > node memory usage: 11 attribute, 4 attribute_list, 1 glue, 51 glue_spec, 3 kern, 2 penalty, 2 temp, 2 user_defined mkiv lua stats > node list callback tasks: 8 unique task lists, 7 instances (re)created, 39 calls mkiv lua stats > synctex tracing: 2 referenced files, 4 files ignored, 5 objects flushed, logfile: Example1.synctex mkiv lua stats > driver time: 0.134 seconds mkiv lua stats > used backend: pdf (backend for directly generating pdf output) mkiv lua stats > jobdata time: 0.002 seconds saving, 0.001 seconds loading mkiv lua stats > callbacks: internal: 136, file: 144, direct: 2, late: 6, function 507, total: 795 mkiv lua stats > randomizer: resumed with value 0.087860107421875 mkiv lua stats > positions: 2 collected, 2 regular, 0 special mkiv lua stats > loaded tex modules: 1 requested, all missing (*-amsl) mkiv lua stats > result saved in file: Example1.pdf, compresslevel 3, objectcompresslevel 1 mkiv lua stats > loaded patterns: en::1, load time: 0.000 mkiv lua stats > loaded fonts: 2 files: latinmodern-math.otf, lmroman12-regular.otf mkiv lua stats > font engine: otf 3.111, afm 1.513, tfm 1.000, 7 instances, 3 shared in backend, 3 common vectors, 0 common hashes, load time 0.208 seconds mkiv lua stats > used platform: mswin, type: windows, binary subtree: bin mkiv lua stats > used engine: luatex version: 1.12, functionality level: 7306, banner: this is luatex, version 1.12.0 (tex live 2020/w32tex) mkiv lua stats > control sequences: 45874 of 65536 + 100000 mkiv lua stats > lua properties: engine: lua 5.3, used memory: 125 MB, ctx: 124 MB, max: unknown MB, hash chars: min(32,40), symbol mask: utf (τεχ) mkiv lua stats > runtime: 0.813 seconds, 1 processed pages, 1 shipped pages, 1.230 pages/second system | total runtime: 1.189 seconds _____________________________________________________________________ ConTeXt Compilation Report (Pages: 1) Errors: 0 Warnings: 0 Bad Boxes: 0 * Thanks for helping Uschi

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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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