October 2023 - ntg-context - NTG Mailing Lists

Color option in \setupinteraction doesn't work sometimes
by Mia Bikey 28 Oct '23

28 Oct '23

Hi, I was trying to get all my references black as it goes well along with black text but they appear red in some pages. I have reinstalled context in case there was some software issue but it is still the same. Here is a minimal working example: ConTeXt ver: 2023.09.26 18:19 LMTX \setupinteraction[state=start, color=black] \starttext \placeformula[eq:equation1] \startformula x \stopformula References are red on the first page \in[eq:equation1] \at{page}[eq:equation1] \input tufte \input tufte \input tufte \input tufte \input tufte Now they become black \in[eq:equation1] \at{page}[eq:equation1] \stoptext

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Combining python and lua
by Alexandre Christe 26 Oct '23

26 Oct '23

Dear list, I’d like to know the best approach to make this a bit more usable. I’m trying to typeset a table with sin/cos/tan values. I’d like to be able to convert the angles in degrees into radians (with math notation) and to compute the trigonometric function leading to sin(pi/4) = 1/2, or cos(pi/6) = sqrt(3)/2 and display it in math mode. Here’s my current MWE, where I fail to convert the angles in radians and fail to display the result in symbolic form. \starttext \startluacode local angleList = {0, 30, 45, 60, 90, 120, 135, 150, 180, 210, 225, 240, 270, 300, 315, 330, 360} context.bTABLE() context.bTR() context.bTD() context("$x$") context.eTD() context.bTD() context("$0$") context.eTD() for _, a in ipairs(angleList) do context.bTD() context("$\letterpercent.0f$",a) context.eTD() end context.eTR() context.bTR() context.bTD() context("$\\cos(x)$") context.eTD() for _, a in ipairs(angleList) do context.bTD() context("$\letterpercent.3f$",math.cos(math.rad(a))) context.eTD() end context.eTR() context.bTR() context.bTD() context("$\\sin(x)$") context.eTD() for _, a in ipairs(angleList) do context.bTD() context("$\letterpercent.3f$",math.sin(math.rad(a))) context.eTD() end context.eTR() context.bTR() context.bTD() context("$\\tan(x)$") context.eTD() for _, a in ipairs(angleList) do if a == 90 or a == 270 then context.bTD() context("$-$") context.eTD() else context.bTD() context("$\letterpercent.3f$",math.tan(math.rad(a))) context.eTD() end end context.eTR() context.eTABLE() \stopluacode \stoptext \stoptext One possible way would be to use Python and the t-filter module, like this \usemodule[filter] %It depends on your OS. In mine it's python3 \defineexternalfilter [pythontyping] [filtercommand={python3 \externalfilterinputfile \space > \externalfilteroutputfile}, output={\externalfilterbasefile.tex}, cache=yes, readcommand=\typefile, spacebefore=medium, spaceafter=medium] %We copy settings to save typing \defineexternalfilter[pythonformula][pythontyping] %But instead of typing, we input a formula \setupexternalfilter[pythonformula] [readcommand=\samplefile] %\input should also work \starttext Convert angle to radians: $\startpythonformula from sympy import * print(latex(pi/180*60)) \stoppythonformula$ Compute trigonometric function: $\startpythonformula from sympy import * print(latex(cos(pi/3))) \stoppythonformula$ \stoptext However, I haven’t managed so far to combine things (lua and Python) in an automatic way. How should I proceed? A. Christe

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Footnotes on the bottom of the column's current page, instead of the columns' end
by Juliano David Hilario 26 Oct '23

26 Oct '23

> > > Hello, I'm trying to achieve a look similar to a magazine our religious organization frequently discusses, but unfortunately can't find the correct settings to do so. Whenever I call a custom note on a column, instead of the note showing on the bottom of the page, it shows at the end of the column. (like an endnote, except, it shows as a small footnote at the beginning) How should I make it shown on the bottom of the page of the current footnote instead of the end of the column command? My MWE:

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sidebar and marginrule not working
by Hamid,Idris 24 Oct '23

24 Oct '23

Dear gang, The appears to be something wrong with the sidebar and marginrule mechanisms. MWE: ============== % ConTeXt ver: 2023.09.26 18:19 LMTX \setupmarginrule[1][rulecolor=darkred] \definesidebar[Sidebar][rulethickness=0.28pt,distance=3pt,rulecolor=darkgreen] \setupsidebar[rulecolor=darkgreen] \starttext \startmarginrule[1] \input ward \stopmarginrule \blank \startsidebar[Sidebar] \input zapf \stopsidebar \stoptext ============== In the output, either i) the rules do not appear at all (most attempts); or ii) the rules appear for a split-second then disappear (using sumatrapdf as the viewer, so the pdf updates on the fly). Is is a bug? A second question: Is either mechanism preferable over the other? That is: In LMTX, what is the best mechanism to use? Thank you in advance for any guidance. Best wishes -- Idris Samawi Hamid, Professor Department of Philosophy Colorado State University Fort Collins, CO 80523

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Re: sidebar and marginrule not working
by Hamid,Idris 24 Oct '23

24 Oct '23

------ Original Message ------ From "Hamid,Idris" <Idris.Hamid(a)ColoState.EDU<mailto:Idris.Hamid@ColoState.EDU>> To "mailing list for ConTeXt users" <ntg-context(a)ntg.nl<mailto:ntg-context@ntg.nl>> Date 10/23/2023 6:24:38 PM Subject [NTG-context] sidebar and marginrule not working Dear gang, The appears to be something wrong with the sidebar and marginrule mechanisms. MWE: ============== % ConTeXt ver: 2023.09.26 18:19 LMTX \setupmarginrule[1][rulecolor=darkred] \definesidebar[Sidebar][rulethickness=0.28pt,distance=3pt,rulecolor=darkgreen] \setupsidebar[rulecolor=darkgreen] \starttext \startmarginrule[1] \input ward \stopmarginrule \blank \startsidebar[Sidebar] \input zapf \stopsidebar \stoptext ============== In the output, either i) the rules do not appear at all (most attempts); or ii) the rules appear for a split-second then disappear (using sumatrapdf as the viewer, so the pdf updates on the fly). Is this a bug? A second question: Is either mechanism preferable over the other? That is: In LMTX, what is the best mechanism to use? Thank you in advance for any guidance. Here is the pdf that is a result of the MWE above: https://www.dropbox.com/scl/fi/r18ao8dhpz8m5cj3jk7kv/test-sidebar.pdf?rlkey… Also attached. Best wishes -- Idris Samawi Hamid, Professor Department of Philosophy Colorado State University Fort Collins, CO 80523

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Large unwanted white space
by Fabrice Couvreur 22 Oct '23

22 Oct '23

Hi, I don't know if I will explain my problem clearly but I will try. For my students' tests, I use a master file. If I insert this piece of code, there is a large white space that is created between the horizontal line of the header and the first exercise. Thanks for your help. Fabrice \startMPcode def suite (expr n, t) = begingroup numeric u; u := 5mm; pickup pencircle scaled 5pt; for i=0 upto n: for j=0 upto n: drawdot (i*u,j*u) shifted(t*u,0) withcolor \MPcolor{darkred}; endfor endfor endgroup enddef; def Suite (expr n, t) = begingroup numeric u; u := 5mm; pickup pencircle scaled 5pt; for i=0 upto n: drawdot(i*u,0) shifted(t*u,0) withcolor \MPcolor{blue}; endfor endgroup enddef; def cross (expr n, t) = begingroup numeric u; u := 5mm; pickup pencircle scaled 5pt; for i=-n upto n: drawdot(0,i*u) shifted(t*u,0) withcolor \MPcolor{blue}; endfor endgroup enddef; \stopMPcode __________________________________________________________ %horizontal line % big unwanted white space \starttext % \startex First exercise \startlinecorrection[blank] \startmidaligned \startcombination[1*2] {\startMPcode Suite(2,0); cross(1,1); Suite(4,4); cross(2,6); Suite(6,10); cross(3,13); \stopMPcode }{\tfx \bf Suite 1} {\startMPcode suite(0,0); suite(1,2); suite(2,5); \stopMPcode }{\tfx \bf Suite 2} \stopcombination \stopmidaligned \stoplinecorrection %\stopex \stoptext

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MP: problems with dashed lines
by Henning Hraban Ramm 22 Oct '23

22 Oct '23

Hi, I wanted to use dashed lines as folding marks, but apparently they only work with pencircle, or at least not with pensquare. The Metafun manual (Reference, C5) also shows a problem with "dashed oddly", that I can’t reproduce in this MWE: \startMPpage draw (0,0)--(100,100) withpen pencircle dashed evenly; draw (50,0)--(150,100) withpen pencircle dashed oddly; draw (100,0)--(200,100) withpen pensquare dashed evenly; % plain line, not dashed draw unitsquare scaled 100 withpen pencircle dashed oddly withcolor blue; draw unitsquare scaled 100 xshifted 50 withpen pensquare dashed evenly withcolor red; \stopMPpage Hraban

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overprinting black
by Henning Hraban Ramm 21 Oct '23

21 Oct '23

Hi, esp. Hans, while finalizing the PDF for our latest book, I recognized a color problem: The general black color is rendered not 100% black in CMYK mode, but in all channels (converted RGB, I guess). With \definecolor[cmykblack][k=1] \setupcolors[textcolor=cmykblack] this is ok, but the color mode is knockout instead of overprint (as it would be usual for CMYK black). That means, black text on a photo is white in the other plates. If I define \definecolor[cmykblack][k=1,a=multiply,t=1] \setupcolors[textcolor=cmykblack] it’s ok in some places, but it messes up many unrelated places, e.g. most images then also use this transparency mode. \setupcolors[intent=overprint] has no effect, as far as could find (while we have a warning in the wiki, that you should use this only for grayscale works). What can I do? Hraban

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protrusion in framed
by Csikos Bela 20 Oct '23

20 Oct '23

Hello:Protrusioin doesn't work in framed environment.This is a short code:\definefontfeature[default][default][expansion=quality,protrusion=quality]\setupalign[hz,hanging]\showframe\starttext\input tufte\blank\framed[frame=off,location=top,align=normal,offset=0pt]{\input tufte }\blank\setlocalhsize\framed[frame=off,location=top,align=normal,offset=0pt,width=local]{\input tufte }\stoptextThe compiled pdf is attached as protrusion-in-framed.pdf.Is is possible to make protrusion work in framed?I need to use framed in itemize to prevent splittinf of items between pages.Thanks,bcsikos

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numbered itemize list item label alignment
by Csikos Bela 19 Oct '23

19 Oct '23

Hello:I would like to make a long numbered itemize list, where the numbers increase up to three digits.I would like the numbered labels aligned to the right and the widest label's left side located at the left margin.I tried the below code but the 3 digit labels' left sides go into the left margin. How can I fix it?Code:\showframe\starttext\startitemize[n,broad][itemalign=flushright]\dorecurse{250}{\item aaaa}\stopitemize\stoptextThe resulted pdf is attached as context-itemize-label-alignment.pdf.Thank you in advance,bcsikos

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