October 2014 - ntg-context - NTG Mailing Lists

\startanimation and \dorecurse
by Jeong Dal 20 Oct '14

20 Oct '14

Hi, I tested the following simple code to generate enlarging circles as a test of animation. But it just draw 5 circles in a row. \usemodule[animation] \setupinteraction[state=start] \startbuffer[Circles] numeric u; u:= 1cm; draw fullcircle scaled \MPrawvar{Circles}{s}u; \stopbuffer \starttext \startanimation { \dorecurse{5}{% \setupMPvariables[Circles][s=\recurselevel] \processMPbuffer [Circles] }} \stopanimation \stoptext It seems to me that \startanimation just treat the figures {\dorecurse … } as just one figure. Is there a way to treat it 5 figures to generate animation? Thank you for reading. Best regards, Dalyoung

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Problem with last version of ConTeXt
by Jaroslav Hajtmar 20 Oct '14

20 Oct '14

Hello ConTeXist.... Already a long time I use ConTeXt for processing the same files and always worked very well. Yesterday I updated version of ConTeXt Standalone and then I (like many times before) wanted to translate his usual document. Unfortunately, the translation stopped with an error message that I do not understand. Does anyone know what this could mean? The source code of my source file I did not change for a very long time a translation by using ConTeXt from TeXLive 2014 is without problem. Thanks for the advice. Jaroslav Hajtmar Here is error message. C:\$~1da\PODNIK\ConTeXt>context Ds477_2202421 mtx-context | warning: no (local) file './Ds477_2202421', proceeding mtx-context | run 1: luatex --fmt="C:/context/tex/texmf-cache/luatex-cache/c ontext/5fe67e0bfe781ce0dde776fb1556f32e/formats/luatex/cont-en" --jobname="Ds477 _2202421" --lua="C:/context/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce 0dde776fb1556f32e/formats/luatex/cont-en.lui" --no-parse-first-line --c:currentr un=1 --c:fulljobname="./Ds477_2202421" --c:input="./Ds477_2202421" --c:kindofrun =1 --c:maxnofruns=8 "cont-yes.mkiv" This is LuaTeX, Version beta-0.79.1 (TeX Live 2014/W32TeX) (rev 5041) \write18 enabled. open source > 1 > 1 > C:/context/tex/texmf-context/tex/context/base/cont-yes .mkiv ConTeXt ver: 2014.09.25 18:58 MKIV beta fmt: 2014.10.18 int: english/english system > 'cont-new.mkiv' loaded open source > 2 > 2 > C:/context/tex/texmf-context/tex/context/base/cont-new .mkiv close source > 2 > 2 > C:/context/tex/texmf-context/tex/context/base/cont-new .mkiv system > files > jobname 'Ds477_2202421', input './Ds477_2202421', resu lt 'Ds477_2202421' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > 2 > 3 > C:/$~1da/PODNIK/ConTeXt/Ds477_2202421.tex open source > 3 > 4 > c:/1da/tex/context/ctx_sml_library.tex colors > 'rgb' color space is supported colors > 'cmyk' color space is supported resolvers > modules > 'visual' is loaded open source > 4 > 5 > C:/context/tex/texmf-context/tex/context/base/m-visual .mkiv loading > ConTeXt Tracking Macros / Visualization close source > 4 > 5 > C:/context/tex/texmf-context/tex/context/base/m-visual .mkiv setup > error in line 14, namespace 'itemgroup', instance 'itemize', k ey 'n' setup > error in line 14, namespace 'itemgroup', instance 'itemize', k ey 'packed' close source > 3 > 5 > c:/1da/tex/context/ctx_sml_library.tex close source > 2 > 5 > C:/$~1da/PODNIK/ConTeXt/Ds477_2202421.tex close source > 1 > 5 > C:/context/tex/texmf-context/tex/context/base/cont-yes .mkiv *

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backgrounds
by Hans Hagen 20 Oct '14

20 Oct '14

Hi, new in next beta %D Sometimes you have a document wide (page) background but need to overload it %D locally. In such case (at least in my experience) the only values that get set %D are the background and backgroundcolor (if set at all). A full inheritance chain %D would complicate things because then we need to use named backgrounds which in %D turn will make this mechanism slower. I considered independent local backgrounds %D but that also complicates the code (not that much) but isolation means that we %D need to set more parameters each time. The following simple approach proabbly %D suits most usage. \starttext \setupbackgrounds[page][background=color,backgroundcolor=red] \input tufte \page \setupbackgrounds[page][background=,backgroundcolor=] \input tufte \page \setupbackgrounds[page][background=color,backgroundcolor=red] \input tufte \page \pushbackground[page] \setupbackgrounds[page][background=color,backgroundcolor=green] \input tufte \page \popbackground \input tufte \page \stoptext (only two parameters pushed/popped) -- ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------

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bug in \useURL?
by Pablo Rodriguez 19 Oct '14

19 Oct '14

Dear list, I have the following sample: \asciimode \starttext \useURL[url][only#one]\from[url] \stoptext \asciimode seems to repeat the hash char. I’m afraid this might be a bug. Many thanks for your help, Pablo -- http://www.ousia.tk

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indentnext=no and \item
by Pablo Rodriguez 19 Oct '14

19 Oct '14

Dear list, I have the following sample: \setupindenting[medium, always] \starttext \startitemize[a, indentnext=no] \item This is not indented. This shouldn’t be indented, but it is. \stopitemize \stoptext How can I get that the paragraphs other than the first in the item don’t get indented? Many thanks for your help, Pablo -- http://www.ousia.tk

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displaymath, grid, vertical spacing, setupformulas
by Mikael P. Sundqvist 19 Oct '14

19 Oct '14

Hi, I have problems to tune the vertical spacing before and after displaymathformulas in grid typesetting. With the example below, I like the spacing in the second formula but not the first (too big). If I comment out the \setupformulas part, then the first one looks OK, but the second is good. Is there a configure to get both of these to occupy three lines? I use the latest standalone. /Mikael \setuplayout[ grid=tolerant, ] \showgrid %\setupformulas[ %spacebefore=, %spaceafter=, %] \starttext \dorecurse{10}{This is a statement. } \startformula 1+2+\cdots+(n-1)+n=\frac{1+n}{2}n. \stopformula \dorecurse{10}{This is a statement. } \startformula 1+2+\cdots+(n-1)+n=\tfrac{1+n}{2}n. \stopformula \dorecurse{10}{This is a statement. } \stoptext

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Structure of titles in MkIV
by Michał Goliński 19 Oct '14

19 Oct '14

Given a file: \setupinteraction[state=start] \placebookmarks[part,chapter][part,chapter] \starttext \startchapter[title=Prologue, number=no] \input knuth \stopchapter \startpart[title={Part A}] \startchapter[title=One] \input knuth \stopchapter \stoppart \startchapter[title=Epilogue] \input knuth \stopchapter \stoptext I would expect to have the logical structure of titles as follows: + Prologue + Part A - + One + Epilogue i.e., "Epilogue" should be at the highest level, as "Prologue" is. Context gives me an Epilogue that is a child of "Part A". Is it possible to have the chapter "Epilogue" not be a child of "Part A"? Best regards Michał Goliński

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Module algorithmic
by Fabrice Couvreur 18 Oct '14

18 Oct '14

Hi Wolfgang, How to reduce the size of the float ? Best regards, Fabrice \usemodule[algorithmic] \definefloat[algorithm][algorithms] \definecolor[H1prime][c=0.50, m=0.00, y=1.00, k=0.00] \definecolor[H4][c=0.07, m=0.00, y=0.15, k=0.00] \setupfloat [algorithm] [background=color, frame=on, framecolor=H1prime, backgroundcolor=H4, width=0.5\textwidth] \starttext \placealgorithm[none][]{} {\startalgorithmic\black \STATE{\bf Variables :} \STATE $N$ et $P$ sont deux entiers naturels \STATE $A$ est un nombre réel \STATE{\bf Entrée :} \STATE Demander à l'utilisateur la valeur de $N$ \STATE{\bf Initialisation :} \STATE Affecter à $A$ la valeur $92\,000$ \STATE{\bf Traitement :} \STATE Affecter à $P$ la valeur $N-1$ \FOR{$I=1$ to $P$} \STATE Affecter à $A$ la valeur $1,163 \times A$ \STATE Afficher A \ENDFOR \stopalgorithmic} \stoptext

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\startitem and \startparagraph
by Rik Kabel 18 Oct '14

18 Oct '14

What is the proper way to delimit paragraphs within an itemized list using \start..\stop tagging (as for epub and such)? When I wrap paragraphs with \startparagraph..\stopparagraph within the \startitem..\stopitem, there is an unwanted newline inserted between the bullet and the item text. Or, is it not recommend to wrap paragraphs that are in enumerations? I ask because http://wiki.contextgarden.net/Epub_Sample suggests “Make sure to tag all your structural elements with \start...-\stop..., e.g. \startchapter, but even \startparagraph!” I also note the appearance of \startcontent..\stopcontent and \stopcaption..\startcaption and such, suggesting to me that semantic tagging may be a useful thing to add to new documents in order to support new output formats. \starttext \startitemize \startitem \startparagraph Item one paragraph one. \stopparagraph \startparagraph Item one paragraph two. \stopparagraph \startparagraph Item one paragraph three. \stopparagraph \stopitem \startitem \startparagraph Item two paragraph one. \stopparagraph \startparagraph Item two paragraph two. \stopparagraph \startparagraph Item two paragraph three. \stopparagraph \stopitem \stopitemize \startitemize \item Item three paragraph one. Item three paragraph two. Item three paragraph three. \item Item four paragraph one. Item four paragraph two. Item four paragraph three. \stopitemize \stoptext -- Rik Kabel

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Trying to emulate CSS "object-fit" behaviour...
by Stuart Hungerford 18 Oct '14

18 Oct '14

Hi, I have a collection of PDF files of varying sizes and aspect ratios. I'm currently using a combination and external figures to place these into frames: \setupexternalfigures[width=45.2mm, frame=off, factor=fit] \setupcombinations[nx=5,ny=4,width=277mm,distance=10mm,after={\blank[10mm]}] \setupframed[offset=1.0mm,background=color,rulethickness=0.25pt,backgroundcolor=white,framecolor=lightgray] \starttext \startsection [title={title text}] \placefigure[here][nonumber] {\vspace more text} {\startcombination {\framed[] {\externalfigure[1.pdf][location=middle]}{}}{} %% and so on This works well, but what I'd like to do is choose a fixed size frame for each PDF and have ConTeXt fill the frame in the same way as these CSS commands: object-fit : cover; object-position : top left; overflow : hidden; (http://www.w3.org/TR/css3-images/#the-object-fit) That is, scale the PDF until all the frame is covered with some part of the PDF, even if means overflowing the frame. The "overflow: hidden" would then clip the overflow to the frame. Different PDF's could have different scalings applied to make this work, which is fine for this application. I understand this may not be an idiomatic use of ConTeXt--any advice or suggestions for alternate approaches much appreciated. Stu

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