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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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Testing whether an XML attribute exists
by Michael Guravage 17 Oct '23

17 Oct '23

Hi, I am typesetting a very simple address list whose source is written in XML. Typesetting choices need to be made dependent on the presence of various attributes; consider the following <family> element. <family surname="Boer" prefix="den"> If the prefix attribute exists I'l like the name to appear as, e.g. 'Boer, den." The several XML attribute testing functions in the XML manual appear to discriminate on an attribute's value. I tried \xmldoifnotatt in an attempt to say, "TRUE if prefix does not match an empty string", since I am not interested in the attribute's value but only whether or not it exists. The code below doesn't work. If someone who knows why it doesn't work would enlighten my ignorance I would be most grateful. A brief explanation and example of \xmldoifatt, \xmldoifnotatt, and \xmldoifelseatt would be exceedingly helpful. \startxmlsetups xml:list:family {\bf \xmlatt{#1}{surname} \xmldoifnotatt{#1, prefix, ''} {, \xmlatt{#1}{prefix}}} \crlf \xmlflush{#1} \stopxmlsetups I have attached three files below: an XML address list, the ConTeXt source file and the typeset result. -- With kind regards, Michael Guravage

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regular online meetup
by Henning Hraban Ramm 15 Oct '23

15 Oct '23

You’re invited to join on Wednesday, October 11th, 19:00 CEST (UTC+2) (4 hours later than before!) at https://lecture.senfcall.de/hen-rbr-rku-oke ConTeXt users of all levels are welcome! For the upcoming meetups feel free to suggest times that suit you better. Next scheduled is November 8th. Hraban

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colors for links
by Pablo Rodriguez 14 Oct '23

14 Oct '23

Hi Hans, I have the following source, which tries to resemble three kinds of links: \setupinteraction[state=start, style=, focus=standard] \def\inone#1{% \start\setupinteraction[color=darkgreen]% \enabledirectives[references.border=darkgreen]% \goto{#1}[url(#1)]\stop} \def\intwo#1{% \start\setupinteraction[color=darkred]% \enabledirectives[references.border=darkred]% \goto{#1}[url(#1)]\stop} \def\inthree#1{% \start\setupinteraction[color=darkblue]% \enabledirectives[references.border=darkblue]% \goto{#1}[url(#1)]\stop} \starttext \startTEXpage[offset=1dk, align=middle] \inone{one}\blank \intwo{two}\blank \inthree{three}\blank \stopTEXpage \chapter[one]{First chapter} \chapter[two]{Second chapter} \chapter[three]{Second chapter} \stoptext I see that the directive for link borders only allows one color for links per document. In my real-world documents, I need to make three different border links: for destinations inside the document (/GoTo), for destinations in other documents (/GoToR or /GoToE) and for external destinations (/URI). With the current document I write now, I have over a hundred links in twenty pages. Being able to visually distinguish each link helps interaction with the document (reading or even writing it). Would it be possible that \setupinteraction could have a bordercolor key, such as the color one? Many thanks for your help, Pablo

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Gray gradient with Metapost
by Fabrice Couvreur 07 Oct '23

07 Oct '23

Hi, I would like to obtain, if possible, a gray gradient like in the image. My code uses Metapost but maybe this is possible with Metafun. Thanks. Fabrice \starttext \startMPcode u=1.2cm; interim ahangle := 30; z0=(0,0); z1=(3u,0); z2=(3u,4u); z3=(0,4u); z4=(0.8u,4u); z5=(2.2u,4u); path rectangle; rectangle=z0--z1--z2--z3--cycle; picture X; X = image( drawoptions(withpen pencircle scaled 1.25 withcolor \MPcolor{orange}); draw (left--right) scaled 2; draw (down--up) scaled 2; drawoptions(); ); fill z0--z4--z3--cycle withcolor .5[red,green]; fill z1--z5--z2--cycle withcolor .5[red,green]; fill z0--z4--z5--z1--cycle withcolor 0.625white; draw z0--z4--z3--cycle; draw z1--z5--z2--cycle; draw rectangle; path a[]; a1 = subpath (0, 1) of rectangle shifted 10 down; a2 = subpath (3, 4) of rectangle shifted 10 left; a3 = subpath (2.26, 2.76) of rectangle shifted 13 up; drawdblarrow a1; label.bot("$30$", point 1/2 of a1); drawdblarrow a2; label.lft("$x+20$", point 1/2 of a2); drawdblarrow a3; label.top("$x$", point 1/2 of a3); draw X shifted z0; draw X shifted z1; draw X shifted z2; draw X shifted z3; draw X shifted z4; draw X shifted z5; label.ulft("B",z3); label.urt("C",z2); label.lrt("D",z1); label.llft("A",z0); label.top("E",z4); label.top("F",z5); \stopMPcode \stoptext

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How can I use a variable for a MetaPost coordinate ?
by peter.hopcroft＠icloud.com 06 Oct '23

06 Oct '23

Hello list, I want to draw lines on a page. I want to pass my line coordinates as a percent of \width or \textheight, rather than as millimetres. So that if I change the page size I don't need to change the coordinates. The MWE below compiles but the pdf does not have any lines drawn on it. Is there a way of doing calculations on the coordinates for the draw using ConTexT variables like \textheight? Thank you, Peter Hopcroft ------ \starttext Some text \startMPcode pickup pensquare scaled 1pt; draw (0mm,0mm)--(0mm,\textheight) withcolor red \stopMPcode More text \startMPcode pickup pensquare scaled 1pt; draw (0mm,0mm)--(0mm,50mm) scaled \numexpr\textheight/50mm\relax \stopMPcode \stoptext ------

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Attempting to Generate PDF/A in LMTX
by Jin-Ho King 05 Oct '23

05 Oct '23

Following the instructions on https://wiki.contextgarden.net/PDF/A, I am receiving errors that the *.icc files cannot be located. I have saved the *.icc files in ~/context-osx-arm64/tex/texmf-context/colors/icc/profiles per the instructions. Here's an excerpt from the log: backend > profiles > profile specification 'default_cmyk.icc' loaded from '/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml' backend > profiles > error, couldn't locate profile 'default_cmyk.icc' backend > profiles > no default profile 'default_cmyk.icc' for colorspace 'cmyk' backend > profiles > profile specification 'default_rgb.icc' loaded from '/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml' backend > profiles > error, couldn't locate profile 'default_rgb.icc' backend > profiles > no default profile 'default_rgb.icc' for colorspace 'rgb' backend > profiles > profile specification 'default_gray.icc' loaded from '/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml' backend > profiles > error, couldn't locate profile 'default_gray.icc' backend > profiles > no default profile 'default_gray.icc' for colorspace 'gray' backend > profiles > profile specification 'ISO coated v2 300% (ECI)' loaded from '/Users/jinho/context-osx-arm64/tex/texmf-context/colors/icc/context/colorprofiles.xml' backend > profiles > error, couldn't locate profile 'ISOcoated_v2_300_eci.icc' backend > profiles > invalid output intent 'ISO Coated v2 300% (ECI)' Here is a MWE that generates these errors: setupinteraction [title=TITLE, subtitle=SUBTITLE, author=AUTHOR, keyword={{KEYWORD1, KEYWORD2}, KEYWORD3}] %% For PDF/A \setupbackend[ format={pdf/a-1b:2005}, % or pdf/a-1a:2005 profile={default_cmyk.icc,default_rgb.icc,default_gray.icc}, intent=ISO coated v2 300\letterpercent\space (ECI)] %% Tagged PDF %% method=auto ==> default tags by Adobe \setupbackend[export=yes] \setupstructure[state=start,method=auto] \starttext \chapter[chap:testing]{Testing} \input knuth \input tufte \input knuth \input tufte \input knuth \input tufte \stoptext What seems to be going wrong? Is the software looking for the *.icc profiles in a different place? Thank you! ~ Jin-Ho. -- "Ad astra per alas porci."

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