April 2024 - ntg-context - NTG Mailing Lists

Is TIFF image no longer supported?
by Joel 14 Apr '24

14 Apr '24

I have a document with PNG, JPG, and TIFF. When I try using \externalfigure[filename][frame=on, width=.6666\textwidth] it displays JPG and PNG fine, but the TIFF files don't render. Is TIFF not supported in ConTeXt anymore? --Joel

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Wiki - question about Command/ pages which start with a space character
by garulfo＠azules.eu 14 Apr '24

14 Apr '24

Hi all, Is it on purpose that 128 pages "https://wiki.contextgarden.net/Command/ xxxxxxxx" start with a space character ? I didn't find an explanation in https://wiki.contextgarden.net/Command For example, these two pages exist : - https://wiki.contextgarden.net/Command/startbuffer - https://wiki.contextgarden.net/Command/_startbuffer If it is on purpose: - What is the purpose, and which page should contain which documentation? If it is not: - Is there a way to automatically merge the content of the couple of pages, and to remove the "wrong" pages, or should it be done manually ? Thanks for your help. List : Command/ attachment Command/ background Command/ bar Command/ beginblock Command/ button Command/ characterkerning Command/ comment Command/ completecombinedlist Command/ completelistoffloats Command/ completelistofsorts Command/ completelistofsynonyms Command/ completeregister Command/ copylabeltext Command/ ctxfunction Command/ ctxfunctiondefinition Command/ currentlabel Command/ delimitedtext Command/ description Command/ enumeration Command/ fence Command/ fraction Command/ framed Command/ framedtext Command/ getbuffer Command/ hbox Command/ help Command/ high Command/ highlight Command/ label Command/ labellanguage Command/ labeltext Command/ labeltexts Command/ language Command/ leftlabeltext Command/ linenote Command/ low Command/ lowhigh Command/ lowmidhigh Command/ margindata Command/ mathcommand Command/ mathdoubleextensible Command/ mathextensible Command/ mathframed Command/ mathmatrix Command/ mathornament Command/ mathoverextensible Command/ mathovertextextensible Command/ mathradical Command/ mathtriplet Command/ mathunderextensible Command/ mathundertextextensible Command/ mathunstacked Command/ nextparagraphs Command/ note Command/ ornament Command/ paragraphs Command/ placecombinedlist Command/ placefloat Command/ placelistoffloats Command/ placelistofsorts Command/ placelistofsynonyms Command/ placement Command/ placepairedbox Command/ placeregister Command/ presetlabeltext Command/ referenceformat Command/ register Command/ rightlabeltext Command/ script Command/ section Command/ seeregister Command/ setupcombinedlist Command/ setupitemgroup Command/ setuplabeltext Command/ setuppairedbox Command/ setupregister Command/ shift Command/ sorting Command/ startattachment Command/ startbackground Command/ startbuffer Command/ startcolumnset Command/ startcomment Command/ startdelimitedtext Command/ startdescription Command/ starteffect Command/ startenumeration Command/ startfittingpage Command/ startfloattext Command/ startformula Command/ startframedtext Command/ starthelp Command/ startindentedtext Command/ startitemgroup Command/ startlabeltext Command/ startlinenote Command/ startlines Command/ startmakeup Command/ startmathalignment Command/ startmathcases Command/ startmathmatrix Command/ startmixedcolumns Command/ startnarrower Command/ startnote Command/ startpagecolumns Command/ startparagraphs Command/ startparallel Command/ startplacefloat Command/ startplacepairedbox Command/ startsection Command/ startsectionblock Command/ startstartstop Command/ startstop Command/ startstyle Command/ starttabulate Command/ starttextbackground Command/ starttyping Command/ startviewerlayer Command/ startxtable Command/ stoplinenote Command/ style Command/ synonym Command/ textbackground Command/ textnote Command/ tooltip Command/ type Command/ typebuffer Command/ unit

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unknown script 'mtx-context.lua' or 'mtx-mtx-context.lua
by denismaier＠mailbox.org 14 Apr '24

14 Apr '24

Hi, I wanted to test my earlier example (float placement) also with MKIV, but context ---luatex . give me this error message : unknown script 'mtx-context.lua' or 'mtx-mtx-context.lua How can I make it work? Best, Denis

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Back in the 90s
by Riviera Taylor 13 Apr '24

13 Apr '24

Hello, I was reading about the history of ConTeXt in the Not So Short Introduction To ConTeXt and I have a historical question. I noticed that the PDF specification was published in 1993 yet ConTeXt was invented in 1991. The book suggests that PDF output was handled by the PdfTeX engine in MKII in 2005. What sort of output did the software produce before PdfTeX was introduced? Was this the same as the output produced by the software before the publication of the PDF specification? Kind regards, Riviera she, her, hers https://wiki.contextgarden.net/User:River

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\luaescapestring in proper Lua
by Pablo Rodriguez 11 Apr '24

11 Apr '24

Dear list, I have the following sample: \starttext \startluacode function document.print_the_thing(str) context(str) end \stopluacode \unexpanded\def\PrintTheThing#1{% \ctxlua{document.print_the_thing([[\luaescapestring{#1}]])}} \PrintTheThing{a \em b {c}} \stoptext I wonder whether there is a proper way in the Lua code to avoid [[\luaescapestring{}]] in \ctxlua. BTW, [[\luaescapestring{}]] in \ctxlua works better for me, since in my real world document, I’m using str:match() to check whether the string ends with interrogation or exclamation marks ("%?!$"). Many thanks for your help, Pablo

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Figure reference failing
by Willi Egger 10 Apr '24

10 Apr '24

Hello, It seems, that the referencing mechanism is failing. I detected this with the January version and the current version: 2024.04.01 08:59. Could some one confirm this? Kind regards Willi

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Weird (?) float placement for specific widths of image
by denismaier＠mailbox.org 10 Apr '24

10 Apr '24

Hi, another graphics/floats question: consider the following example %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \setupexternalfigures [location={local,global,default}] \starttext \placefigure{A Cow}{\externalfigure[cow][ height=.5\textheight, ]} \placefigure{A Cow}{\externalfigure[cow][ height=.3\textheight, %height=.4\textheight, ]} \placefigure{A Cow}{\externalfigure[cow][ width=3cm, %width=2cm, ]} \placefigure{A Cow}{\externalfigure[cow][width=2cm]} \placefigure{A Cow}{\externalfigure[cow][width=2cm]} \stoptext%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% On the first page, the images appear stacked above each other while on the second page they appear next to each other. It took me some time to reproduce this behaviour, and I can't claim to understand what is happening. But it seems to be related to the specific widths of the images. When I change them to other values the behaviour disappears. Is this a bug? Anything I can do about this? Best Denis

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Fwd: Re: how to apply gradient color to a piece of text?
by Hans Hagen 10 Apr '24

10 Apr '24

-------- Forwarded Message -------- Subject: Re: [NTG-context] Re: how to apply gradient color to a piece of text? Date: Sun, 7 Apr 2024 19:05:13 +0200 From: Hans Hagen <j.hagen(a)xs4all.nl> To: Keith McKay <mckaymeister(a)gmail.com> On 4/7/2024 6:56 PM, Keith McKay wrote: > Not for me either. I used it somewhere so I'll need to look back in my > files. \startMPpage picture tt ; tt := lmt_outline [ kind = "fillup", text = "\definedfont[name:texgyrepagellabold*default]foo f o o", ] xsized 12cm ; path bb ; bb := boundingbox tt ; path pp ; pp := bb enlarged 2cm ; fill pp withshademethod "linear" withshadedirection down withshadecolors (red, blue) ; draw tt withcolor green ; \stopMPpage no need to loop over tt ----------------------------------------------------------------- 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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regular online meet-up
by Henning Hraban Ramm 10 Apr '24

10 Apr '24

You’re invited to our regular online meet-up, this upcoming Wednesday, April 10th, 19:00 CEST (UTC+2) at https://lecture.senfcall.de/hen-rbr-rku-oke (same, but shorter: https://u.mtxrun.eu/ctxmtg) ConTeXt users of all levels are welcome! Do you have a subject that you’d like to talk about? Looking forward to seeing you, Hraban (Same blurb as always:) [Howto] * No special software installation required; most modern browsers should work (WebRTC required). * Open the URL above, accept the privacy statement, * enter your name, * click "join" (or "start" if you’re the first), * click "with microphone", allow your browser to access it, check the audio. * Your microphone is muted if you join. Activate microphone and/or camera with the buttons at the bottom. * Minimize the default presentation with the "screen" button, bottom right. * If you’d like to share your screen or upload a file, you can make yourself the presenter: Click on your user name, change the setting, then you’ll see the "screen sharing" button beside the camera button; also there’s now "manage presentations" behind the "plus" button. Beware there is only one presenter at a time, so don’t kill someone else’s presentation. [Technical hints] * Sound is usually better if you use a headset (less noise for everyone). * Connection problems are mostly due to low bandwidth or high latency on your side, e.g. with mobile connections. * Sometimes leaving and re-entering helps. * If audio/video doesn’t work for you, you can still use the text chat. * Screen sharing needs a lot of bandwidth. * BigBlueButton documentation applies: https://bigbluebutton.org/teachers/tutorials/ [Netiquette] * Please use a name that we recognize from here. Some feel uncomfortable with anonymous lurkers. * Mute your microphone while you’re not talking. * It’s nice to show your face at least when you join. * If there are connection problems, stop camera sharing. * The room is set to “everyone’s a moderator“, I trust you...

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how to apply metapost effects to section title?
by seyal.zavira＠gmail.com 09 Apr '24

09 Apr '24

i want to produce a gradient header i tried this code but it does not produce any result: \startext \def\Mystyle#1{\startMPcode picture tt ; tt := lmt_outline [ kind = "path", text = "#1", ] ; fill for i within tt : pathpart i && endfor cycle withshademethod "linear" withshadedirection up withshadecolors (red, blue) ; \stopMPcode } \definehead[Myhead][section] \setuphead[Myhead][ style=\Mystyle, ] \startMyhead[title=sample] a sample text \stopMyhead \stoptext and the code below works but does not colorize numbers of this heads: \starttext \def\Mystyle#1{\startMPcode picture tt ; tt := lmt_outline [ kind = "path", text = "#1", ] ; fill for i within tt : pathpart i && endfor cycle withshademethod "linear" withshadedirection up withshadecolors (red, blue) ; \stopMPcode } \def\startMysection#1{\startsection[title=\Mystyle{#1}]} \def\stopMysection{\stopsection} \startMysection{hello} what is best method? \stopMysection \stoptext what is your suggestion?

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