ntg-context February 2017

ntg-context@ntg.nl

51 participants
82 discussions

Vertical spacing in enumerations
by Fabrice Couvreur 14 Feb '17

14 Feb '17

In the code below, the vertical spacing of the second level should be like that of the first level Thank you Fabrice \definecolor[MyBlue][c=0.06 , m=0.03, y=0.00, k=0.00] \defineframed [algorithmframe] [width=\textwidth, align=normal, strut=no, offset=1ex, foregroundstyle={\switchtobodyfont[7pt]}, background=color, location=middle, backgroundcolor=MyBlue, framecolor=darkblue, corner=round] \definelines [algorithm] [space=on, before={\startframed[algorithmframe]}, after=\stopframed] \starttext \startalgorithm \startitemize[1,joinedup,nowhite] \item On commence par le sommet A : il est à une distance \math{d({\rm A})} égale à \math{0} du sommet A. \item Pour tous les sommets S adjacents à A et non marqués : \startitemize[2,joinedup,nowhite] \item on calcule la somme \math{s} du poids de l'arête A-S et de la distance \math{d({\rm A})} ; \item si \math{s < d({\rm S})}, on remplace la distance \math{d({\rm S})} par \math{s} et on retient que cette distance \quotation{provient} du sommet A. \stopitemize \item On marque définitivement le sommet A. \stopitemize \stopalgorithm \stoptext

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Problem with Russian letters in itemize
by Vladimir Lomov 14 Feb '17

14 Feb '17

Hello, I'm trying to use Russian (Cyrillic) letters for itemize list but without luck. This is small example to show a problem: ---------------------- 8< --------------------- \mainlanguage[ru] \setupbodyfont[cambria] % \setupbodyfont[computer-modern-unicode] % \setupbodyfont[dejavu] \starttext \startitemize[a] \item первый \item второй \stopitemize \stoptext ---------------------- 8< --------------------- Compilation (typesetting) of the example by context (curr. ver. 2017.01.27) gives a PDF file with Latin letters. According to 'language-mkiv.pdf' (found in texmf-context/doc/context/documents/general/manuals) The \type{alphabetic} converter adapts to the current main language. When a language has no special alphabet, the regular 26 characters are used. the use of Latin letters is expected behaviour if current language has not special alphabet. But Russian alphabet (based on Cyrillic) has differences with Latin one. Did I face a bug or I misunderstand the documentation and I have to use (add?) another command to obtain Russian letters for item? Also, it is possible that I incorrectly use 'setupbodyfont' but I tested all cases shown above and they work fine, expect the fact that 'cambria' case gives me italic variant of font while 'computer-modern-unicode' and 'dejavu' use "roman" font. Thank you in advance, Vladimir Lomov -- Trying to define yourself is like trying to bite your own teeth. -- Alan Watts

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frac opentype feature broken by \setbreakpoints[compound]
by MF 14 Feb '17

14 Feb '17

Hello list, I found an interference between the "frac" opentype feature and \setbreakpoints[compound], which make the former fail when you have a numerator more than 2 digit wide. I found it with Adobe Garamond Premier Pro: with \setbreakpoints[compound], when the fraction had a 3-digit (or more) numerator, the denominator stayed high as the numerator (like a superscript). Here I replaced Garamond Premier Pro with the freely available "Lato" font, to let you reproduce the problem. The outcome is different, but still erroneous: \setbreakpoints[compound] makes ConTeXt ignore the "frac" feature at all. Please try this: \definefontfeature[frac][frac=yes] \definefontfamily[default][rm][lato][features=frac] \setupbodyfont[default,rm,11pt] \setbreakpoints[compound] \starttext \addff{frac} 1/3, 1/100, 1/1000, {\setbreakpoints[reset]1633/100}, 2345/12. \stoptext A workaround is a local \setbreakpoints[reset] limited to the fraction. Best regards, Massi

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Re: [NTG-context] Bug: \textext inside \*MPinclusions causes error
by Sergey Slyusarev 14 Feb '17

14 Feb '17

> the (subtle) difference between the two [*MPinclusions and **MPinitializations*] is not a bug but a feature If I understood correctly, *MPinitializations affects everything and can't be assigned to a specific instance (or can it?), in some cases (like mine) this difference is not so subtle. Look at the following example (not so minimal): \startMPinitializations picture p; p := image( draw fullsquare scaled 1cm; draw textext("1"); ); \stopMPinitializations \startMPinitializations picture s; s := image( draw (fullsquare rotated 45) scaled 1cm; draw textext("2"); ); \stopMPinitializations \defineMPinstance[foo][initializations=yes] \startMPcode{foo} picture q; q := image( draw fullcircle scaled 1cm; draw textext("3"); ); draw q; \stopMPcode \startMPcode{foo} draw p; draw q shifted (2cm, 0); draw s shifted (4cm, 0); \stopMPcode \defineMPinstance[bar][initializations=yes] \startMPcode{bar} picture r; r := image( draw fullcircle scaled 1cm; draw textext("4"); ); draw r; \stopMPcode \startMPcode{bar} draw p; draw r shifted (2cm, 0); draw s shifted (4cm, 0); \stopMPcode First, it shows why *MPinitializations can't replace *MPinclusions for me (it affects all instances), and second, it silently produces produces some really unexpected results: It looks like it should produce (by line) A circle with "3" inside (yes) A square with "1" inside (yes); A circle with "3" inside again (no, instead it produces circle with "2" inside); A rhombus with "2" inside (no, instead it produces a rhombus with "1") and so on. (tested on http://live.contextgarden.net/) In fact, I failed to declare picture variable inside with text inside one *MPcode environment and pass it to another safely (text either disappears or changes to other text, and this time ConTeXt returns no error), that surely is a bug? Sergey

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Problem with \seeindex and two + entries
by Rik 13 Feb '17

13 Feb '17

ConTeXters, An index register entry with two + components does not get set properly. With the following example, the text “/see Mmm+Plus/” should be on a separate, indented line as “Plus /see Mmm+Plus/” but I see it on the first line as “Aaa /see Mmm+Plus/”. When there are zero or one + components, all is well. \starttext \seeindex{Aaa+Plus}{Mmm+Plus} \seeindex{Bbb+Plus}{Nnn, Comma} \seeindex{Ccc, Comma}{Ooo, Comma} \seeindex{Ddd, Comma}{Ppp+Plus} Some text. \index{Aaa+SecondPlus} \index{Bbb+SecondPlus} \index{Mmm+Plus} \index{Mmm+SecondPlus} \index{Ppp+Plus} \index{Ppp+SecondPlus} \index{Ooo, Comma} \index{Nnn, Comma} Some more text. \page \placeindex \stoptext -- Rik

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Re: [NTG-context] about table operation in lua-ConTeXt
by Jeong Dal 13 Feb '17

13 Feb '17

Dear Henri, Hans, Procházka, Thank you for the answers. It is what I want, and I can complete my code. Thanks again. Best regards, Dalyoung

1 0

pdfboxes
by Peter Rolf 13 Feb '17

13 Feb '17

Hi, I tried to set some PDF boxes properly, but no luck (setupcanvas). After searching the mailing archive from 2015 I found this (broken) example. Is this still the official method to set the crop|trim|bleed boxes? ----- \showframe \setuplayout [location=middle, width=middle, height=middle, cropoffset=auto, trimoffset=1bp, bleedoffset=2bp, artoffset=2bp] \setupbackend [level=0] \starttext \definepapersize[TestA][width=100bp,height=200bp] \definepapersize[TestB][width=150bp,height=250bp] \setuppapersize[TestA][TestB] test \stoptext ----- ConTeXt version 2017.01.27 gives [..] 10 0 obj <</Type/Page/Contents 11 0 R/Resources 9 0 R/MediaBox[0 0 150 250]/CropBox [ 0 0 150 250 ] /TrimBox [ 0 0 150 250 ]/Parent 13 0 R>> endobj [..] One additional note. The Mediabox precision seems to be 5 now (and not 4). Taken from my latest table using TeXpage (/MediaBox[0 0 1655.39105 969.22291]). The precision value for the other boxes should be adjusted to avoid rounding problems (?Box < MediaBox). [lpdf-mis.lua] [..] -- temp hack: the mediabox is not under our control and has a precision of 4 digits local factor = number.dimenfactors.bp local f_value = formatters["%0.4F"] [..] Not in a hurry, fix (or advice) is welcome at any time :D Best wishes, Peter

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about table operation in lua-ConTeXt
by Jeong Dal 13 Feb '17

13 Feb '17

Dear all, It may be a slight off topic. In the following example, I copied a table “m” to “tempM”, and remove the last row of tempM. Then the output is “ 2, 2” I checked the contents of tempM and m and found that they are same even though I didn’t touch m. I want to remove the last row of tempM while keeping the table m untouched. Please tell me how to do it. Thank you. Best regards, Dalyoung \startbuffer[test] \startluacode m = {{0, 2, 4},{2, 3 , 4}, {2, 2, -6}} local tempM = {} tempM = m table.remove(tempM) context(#tempM, “, ” , #m) \stopluacode \stopbuffer \starttext getbuffer[test] \stoptext

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Comical error..
by John Culleton 12 Feb '17

12 Feb '17

I am just starting on a new project and haven't fussed with body fonts yet. I specified specific fonts for the half and title pages. For the copyright page thus far I just used the default whatever that is. On that page the lower case "e" came out as a lower case "c" in every instance. I do have the following in my macros.tex subfile which I pass on from job to job: ------------------------- \setupbodyfontenvironment[default][em=italic] \usemodule[simplefonts][size=10pt] \definefontfeature [default] [default] [protrusion=quality,expansion=quality] \setupalign[hz,hanging] ------------------------------------- maybe there is somethng funky there. John Culleton Wexfordpress Book design and indexing.

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specifying body fonts
by John Culleton 12 Feb '17

12 Feb '17

Reently I saw an example of setting up the various formats of a single body font such as \rm, \it \bf, \sc etc. with examples of using these in Gyre font. It may have been in the wiki or here on the list There were examples of slanted type vs.true italic as I recall. I should have copied it but I didn't (at age 84 I forget to do things). No biggie but does this ring any bells? -- John Culleton Wexfordpress Book design and indexing.

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ntg-context February 2017