November 2020 - ntg-context - NTG Mailing Lists

Bug in overprint? (was: how to set overprint)
by Jano Kula 09 Nov '20

09 Nov '20

Hello, may I ask someone, who understands knockout and overprint in the printing press, to check test cases in the attached file from the test suite, if overprint is working or not in Mark IV, please? Regards, Jano On Fri, 30 Oct 2020 at 11:02, Jano Kula <jano.kula(a)gmail.com> wrote: > > > On Thu, 29 Oct 2020 at 23:12, Jano Kula <jano.kula(a)gmail.com> wrote: > >> Hello, >> >> whatever I try, I cannot get the overprinting right (checked in Output >> Preview of Acrobat). Even overprint-001.tex from the test suite >> (2020-09-19) doesn't seem to have it right (latest beta). What I'm missing >> here? >> >> \setupcolors[intent=overprint] >> \startTEXpage[offset=10mm] >> \framed[frame=on,offset=10mm, >> background=color,backgroundcolor=darkgreen]{ >> % \startcolorintent[overprint] >> \startoverprint >> text in black >> \stopoverprint >> % \stopcolorintent >> } >> \stopTEXpage >> >> Thank you, >> Jano >> > > Forgot to say, I've also tried to add > \setupcolors[state=start,rgb=no,cmyk=yes] > though I think, at least state=start isn't needed anymore. > It doesn't change the overprint issue. > > Jano >

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color epub reader
by Hans Hagen 09 Nov '20

09 Nov '20

Hi, Playing with a pocketbook color epub reader (I just put some manuals on it): - the colors are not bright enough, also not with lights on, why rgb and not cmyk (i only tested pdf) - the viewer is buggy and freezes, color demands more mem i think, but after an upodate it got a bit better - resolution not good enough (yet) But we keep hoping ... 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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\type{...} as macro argument
by Sylvain Hubert 08 Nov '20

08 Nov '20

Dear List, I would like to ask how to define a command, \same, such that \same{\type{a b c}} produces the same result as its argument does \type{a b c} The naive way doesn't work because it makes all the spaces collapse: \define[1]\same{#1} I would also like to ask whether this could be achieved using the lua interface: \startluacode interfaces.definecommand { name="same", -- catcode/mode/arguments = ??? } Thanks in advance. Best, Sylvain

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"page i/n" in footer
by Sylvain Hubert 08 Nov '20

08 Nov '20

Dear List, Does anyone know how to set the footer to be "page i/n" where i=current page number, n=total number of page? I've tried \setuppagenumbering[location=footer, command=\groupedcommand{page }{/\lastcounter[userpage]}] but \lastcounter[userpage] results in empty string. Thanks in advance. Best, Sylvain

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issues with fonts and font effects
by Pablo Rodriguez 08 Nov '20

08 Nov '20

Hans, this sample comes from Sylvain’s message: %~ \definefontfeature[ef1][effect={width=1.0}] \definefontfeature[ef2][effect={width=}] \definefontfamily[face1][rm][gabriola] [features={default, ef1}] \definefontfamily[face2][rm][gabriola] [features={default, ef2}] \starttext \switchtobodyfont[face1]\dorecurse{100}{a b c } \switchtobodyfont[face2]\dorecurse{100}{a b c } \switchtobodyfont[palatino]\dorecurse{100}{a b c } \stoptext \setupbodyfont[palatino] or \switchtobodyfont[palatino] don’t seem to work at all. Results are different if feature ef1 is defined or not. With all features defined, paragraph width is wrong using "effect={width=1.0}". Could you check this? Many thanks for your help, Pablo -- http://www.ousia.tk

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temporarily move up a section title
by Sylvain Hubert 08 Nov '20

08 Nov '20

Dear List, I'm trying to move up a section title (section b) 2cm upward: \starttext \section{a} \blank[-2cm,force]\ \section{b} \section{c} \stoptext The empty space (\ ) after the \blank is necessary here, without which the \blank does nothing. I would like to ask whether there is a less hacky way to let \blank work than the hidden space. Thanks in advance. Best, Sylvain

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weird behavior of font.feature.effect
by Sylvain Hubert 08 Nov '20

08 Nov '20

Dear List, I'm confused by the result of the following example (see attached): \definefontfamily[face1][rm][gabriola][it={features:{default}}] \definefontfamily[face2][rm][gabriola][it={features:{default, effect={}}}] \definefontfamily[face3][rm][gabriola][it={features:{default, effect={width=1.0}}}] \starttext \startitemize[n, packed] \item \switchtobodyfont[face1]\it\dorecurse{100}{a b c } \item \switchtobodyfont[face2]\it\dorecurse{100}{a b c } \item \switchtobodyfont[face3]\it\dorecurse{100}{a b c } \stopitemize \stoptext Could someone explain: 1. What does "effect" mean? Why does "effect={}" embolden the fonts even though nothing ({}) is given as arguments? 2. Similarly, what does "width" do? Why does "width=1.0" shrink the width of the line instead of doing nothing? Thanks in advance. Best, Sylvain

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\switchtobodyfont behaves differenctly with splitted parameters
by Sylvain Hubert 08 Nov '20

08 Nov '20

Dear List, after hours of debugging, I finally found out that \switchtobodyfont[face, 20pt] does NOT behave the same with \switchtobodyfont[face]\switchtobodyfont[20pt]. In my case the latter is the correct one, while the former does nothing but falling back to latinmodern. Does anyone know when or why \switchtobodyfont behaves differently with splitted and joined parameters? Thanks. Best, Sylvain

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\setupindenting[first] not working
by Sylvain Hubert 08 Nov '20

08 Nov '20

Dear List, The first paragraph of the following example is not indented. \setupindenting[yes,first,4cm] \starttext \section{a} \dorecurse{84}{abc } \dorecurse{84}{abc } \stoptext Does anyone know how to actually get the first paragraph indented? Thanks! Best, Sylvain

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ConTeXt Linux installation issues (due to GLIBC dependency)
by Ramkumar KB 08 Nov '20

08 Nov '20

Hello All, I am having a situation where I have to install and run Context in a Linux machine but the machine(s) have only RHEL 7.6 (which comes with only GLIBC_2.17). >From the initial error logs it appears that Context needs minimum GLIBC_2.23. Therefore, I did the following work around and it almost worked ! (there were no more GLIBC_2.23 errors and installation was progressing well...) , till it did not... :-( Any tips or suggestions to try would be indeed very helpful. Thanks so much ! *Work Around* - Manually installed GLIBC_2.23 as per the instructions here - in my own directory where I have full access - https://gist.github.com/carlesloriente/ab3387e7d035ed400dc2816873e9089e *Patchelf Utility* Used the patchelf utility - https://anaconda.org/conda-forge/patchelf *Changed the following Context install files* *install.sh (just before running mtxrun)* *===* patchelf --set-interpreter /my-own-dir/opt/glibc-2.23/lib/ld-linux-x86-64.so.2 --set-rpath /my-own-dir/opt/glibc-2.23/lib:/usr/lib64 $PWD/bin/mtxrun $PWD/bin/mtxrun --script ./bin/mtx-install.lua --update --server="$LMTXSERVER" --instance="$LMTXINSTANCE" --platform="$PLATFORM" --erase --extras="$LMTXEXTRAS" *mtx-install.lua (just before running mtxrunbin)* ==== run("patchelf --set-interpreter /my-own-dir/opt/glibc-2.23/lib/ld-linux-x86-64.so.2 --set-rpath /my-own-dir/opt/glibc-2.23/lib:/usr/lib64 %s", mtxrunbin) run("%s --generate",mtxrunbin) *Error that I see (in the step `make luametatex format`) - * resolvers | formats | changing to format path '/my-own-dir /ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f3 2e/formats/luametatex' resolvers | formats | executing runner 'make luametatex format': / my-own-dir/ConTeXt/tex/texmf-linux-64/bin/luametatex --ini --lua=/my-own-dir/chantool/ConTeXt/tex/texmf-context/tex/context/base/mkiv/luat-cod.lmt /my-own-dir/ConTeXt/tex/texmf-context/tex/context/base/mkiv/cont-en. mkxl This is LuaMetaTeX, Version 2.08.01 2097153(/my-own-dir/ConTeXt/tex/texmf-context/tex/context/base/mkiv/cont-en.mkxl(context.mkxl(syst-ini.m kxl ! Undefined control sequence. <line 3.1019> \voffset \zeropoint \let\voffset\relax \newdimen\voffset \let\normalvoffset\voffset ! Missing number, treated as zero. <to be read again> \let < ... (That makes 100 errors; please try again.)resolvers | formats |

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