February 2015 - ntg-context - NTG Mailing Lists

Bug with macro tightfunction (Metafun)
by Fabrice Couvreur 16 Feb '15

16 Feb '15

Hi, This code generates an error while it was working fine a month ago. Best regards, Fabrice \definecolor[mycolor][c=.4,m=0,y=0,k=0] \starttext \start \switchtobodyfont[small] \startMPcode input hvdm; input tex; l:=3mm; r:=0.6; alfa:=45; beta:=0; gamma:=0; defineDefaultArrow (l, r, alfa, beta, gamma); numeric xmin, xmax, ymin, ymax; xmin := 0; xmax := 110; ymax :=8000 ;ymin:=0; u := 0.1cm; v:= 0.002cm; color mycolor; mycolor:=(0.4,0,0); drawoptions(withpen pencircle scaled 0.3pt withcolor \MPcolor{mycolor}); draw hlingrid(ymin,ymax,1000,16cm,11cm); draw vlingrid(xmin,xmax,10,11cm,16cm); pickup pencircle scaled 1pt ; arrowline ((xmin,0) -- (xmax,0)) scaled u; arrowline ((0,ymin) -- (0,ymax)) scaled v; drawoptions(withpen pencircle scaled 1pt); draw tightfunction ("x", "x*x-84*x+5000", 0, 100, 0.01) xyscaled (u,v); for i=0 step 10 until 100: label.bot(TEX("$"&decimal(i)&"$"),(i*u,0)); endfor; for i=0 step 1000 until 7000: label.lft(TEX("$"&decimal(i)&"$"),(0,i*v)); endfor; label.top("Nombre de lots",(90u,50v)); label.lrt(btex $f(x)$ (en euros) etex,(0,7800v)); \stopMPcode \stop \stoptext

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Re: [NTG-context] Hatch an area with Metapost (Metafun)
by John Kitzmiller 16 Feb '15

16 Feb '15

On Feb 15, 2015, at 6:00 AM, Fabrice <couvreur.fabrice(a)wanadoo.fr <mailto:couvreur.fabrice@wanadoo.fr>> wrote: > > Thank you for this new example. >> Try the mpost variable lableoffset := ? to adjust. > > This does not seem to workwith lableoffset := 2mm. > Fabrice I spelled it wrong, sorry! It is labeloffset := 2mm;

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Footnotes and Marginal texts
by Robert Krug 16 Feb '15

16 Feb '15

Greetings, I am working on a document with many annotations of different types, and have a couple of questions. (Before the questions, though, I am quite impressed with ConTeXt so far. It is much nicer to work with than any of the TeX or LaTeX packages I have worked with before.) First, what is the preferred way to get marginal text? Is \margintext, \inmargin, or some other the current best practice? Second, is there a way to get marginal text for a footnote? Here is a minimal working example: \starttext Text for the\footnote{A\margintext{Where am I?} footnote.} main\margintext{I am here.} body. \stoptext Finally, is there a way to have different classes of footnotes? I would like to have three classes of footnotes to be displayed something like: —— 1. first footnote of class 1 2. second footnote of class 1. —— a. first footnote of class 2. b. second footnote of class 2. —— 1. first footnote of class 3. 2. second footnote of class 3. That is, the footnotes of each class should appear together, with a “normal” footnote rule above them. Each class of footnotes should also have its own numbering scheme. Footnotes of class 1 are “regular” footnotes in the main text body. Footnotes of class 2 will be longer, and will occasionally be more than one paragraph. They, also, will occur in the main text body. To complicate matters, they may have marginal notes and footnotes (of class 3). Footnotes of class 3 are footnotes that occur in footnotes of class 2. Many thanks, Robert

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replacing images in PDF documents
by Pablo Rodriguez 15 Feb '15

15 Feb '15

Dear list, I have the following situation, that I would like to solve using ConTeXt. I have to generate a bunch of PDF documents daily, that someone else has to validate (put a stamp on it [let’s put it that way]). It might be a physical stamp, but it might be also a vector image. One of the issues is that the stamp has a different place in each document (almost). Another issue is that the stamp should be added after the document is generated, not before. Having the following sample: \starttext I want this image replaced: \externalfigure[cow][scale=200] \stoptext After generating the document (and not modifiying or recompiling the source), is there a way to replace the image with another one? Many thanks for your help, Pablo -- http://www.ousia.tk

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Re: [NTG-context] Hatch an area with Metapost (Metafun)
by John Kitzmiller 15 Feb '15

15 Feb '15

On Feb 10, 2015, at 3:42 PM, couvreur.fabrice(a)wanadoo.fr <mailto:couvreur.fabrice@wanadoo.fr> wrote: > Is it possible to have some explanation of the parameters of the macro numberstriped(#1,#2,#3) ? > How to have horizontal hatching ? (How to change the slope hatching ?) There is also anglestriped in mp-tool with some examples. The second argument changes the angle. \startMPpage[offset=2mm] path p, q ; p := unitsquare scaled 4cm ; z1 = point 3.6 of p ; q := subpath (0,2) of p -- z1 -- cycle; q := q shifted(-4cm,-4cm); draw q anglestriped(1,180,6) withcolor blue; draw p ; \stopMPpage (I have not yet found why the striped path q goes out of position. Looking at mp-tool may help.) > I just noticed that the position of labels is not quite the same when using macros and macro Metafun Metapost: > I think the labels are too near to the corners of the square with the macro Metafun. Try the mpost variable lableoffset := ? to adjust. HTH, John

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Numbers in appendix roman, but want arabic
by Mikael P. Sundqvist 14 Feb '15

14 Feb '15

Hi, with the example below, I have two problems (that are probably related). In the appendix, the Theorem is numbered "Theorem II" instead of "Theorem 2", i.e. roman numbers are used instead of arabic ones. Also, when I refer to Theorem 1 from the appendix , it says "Theorem I". Again with roman number instead of arabic. I would prefer "Theorem 1". So, the question reads: How can I get arabic numbers also in the appendix? (The appendix itself has the letter A as I want it to) /Mikael \starttext \defineenumeration[Theorem] \defineconversionset [bodypart:sectioncounter] [n,n,n] [n] \defineconversionset [appendix:sectioncounter] [n,n,A] [n] \setuphead[chapter,section][sectionconversionset=sectioncounter] \chapter{Foo} \startTheorem[thm:main] This is a theorem. \stopTheorem \startappendices \title{Appendix} \section{This is the first appendix} \startTheorem This is another theorem. \stopTheorem What if we refer to the first theorem, Theorem~\in[thm:main]? \stopappendices \stoptext

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Asciidoc to PDF over Context
by Tobias Famulla 13 Feb '15

13 Feb '15

Hello Mailing-List, I used Latex for a few years in university to create reports for assignments and also to write my bachelor thesis (I would have liked to use Context, but the right schema for citation was not available and I had no time to create it myself). Over the time I got a little bit frustrated with Latex, because it has many modules and most of the time gets the job done, but writing Latex can sometimes be quite hard sometime to me (you have to have the modules installed, tweak around with charactersets, imagepositioning, ...). In between I looked at much smaller and sleaker document representations languages (asciidoc, restructuredText, Markdown) and writing in it is a pleasure compared to Latex (I haven't really tried out Context but looked over the documentation and it looked more promising but shares the same design ideas). Asciidoc is even able to declarate source code listings and formulas. Never the less, the output to Pdf is not always the nicest one. The reason why I now write to this list, is, that I imagine, that Context could be the right processor to create beautiful PDFs out of intermediate formats (DocBook 5 or Asciidoc). For the conversion to Latex a module for asciidoctor (ruby implementation) is in developement. The ideal system I imagine would be close to what is used with HTML and CSS on the web: Having a easy to use file format to writing you documents (Asciidoc or DocBook as intermediate format) and a system to create the PDFs (maybe Context and a Context-Template) So my main questions are: - Are there straigt forward ways to create PDFs with Context using Docbook 5? - Are there "not that hard" possibilites to write extentions to Context to do exactly that (maybe using Lua)? - Does it make more sense, when using another input format like Asciidoc, to write a converter which directly creates a Context-document? (although it might be more versatile to use DocBook for other formats like Markdown or DocBook itself) Sincerely, Tobias

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XML Processing with Verbatim (VIM-Typing)
by Andreas Schneider 13 Feb '15

13 Feb '15

Hello, as a few other topics on this Mailing List already discussed, it's not (easily?) possible to use \starttyping\stoptyping within XML setups. If it was "simple" verbatim, there would be a few workarounds. However, I want to provide formatted verbatim (i.e. \startJSON \stopJSON, after having \definevimtyping[JSON][syntax=javascript]). That typing environment will be further customized (by adding text background with border, etc.). I don't see a simple way to work around this without manually typesetting the code highlighting (which I don't want. I simply want <json>{someCode}</json> inside the XML file). Is there anything I can do to make this work? Maybe with preparing a buffer? (with Lua?) Thanks in advance, for any help you can provide :-) -- Minimal Example: \usemodule[vim] \definevimtyping[JSON][syntax=javascript] \starttext \startluacode function xml.functions.processJSON(t) lxml.verbatim(t, "\\startJSON", "\\stopJSON") end \stopluacode \startbuffer[demo] <test> <description> <json>{somecode}</json> </description> </test> \stopbuffer \startxmlsetups xml:initialize \xmlsetsetup{#1}{test|description|json}{xml:*} \stopxmlsetups \xmlregistersetup{xml:initialize} \startxmlsetups xml:test \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:description %\xmlsetsetup{xml}{json}{xml:*} \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:json \xmlfunction{#1}{processJSON} \stopxmlsetups \xmlprocessbuffer{main}{demo}{} \stoptext

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\setupbackend and manual hyphenation
by Axel Kielhorn 12 Feb '15

12 Feb '15

Hi! I'm trying to use Context to export a document to epub. Following the instructions on Contextgarden everything works up to a point: When I add manual hyphenation for the word "Trennalgorithmus" and \setupbackend[export=yes,xhtml=yes] I get: lua error > error on line 1 in file /Volumes/Macintosh HD/Users/axel/Documents/Text/Dokumente_LaTeX/context/Dante 2015/Dominik Wagenführ - ePub/epub/epub_bug.tex: .../context/tex/texmf-context/tex/context/base/back-exp.lua:2516: bad argument #1 to 'utfchar' (invalid value) stack traceback: [C]: in function 'utfchar' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2516: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2687: in function 'collectresults' .../context/tex/texmf-context/tex/context/base/back-exp.lua:2752: in function 'nodes_handlers_export' [string "local nodes_handlers_cleanuppage = nodes.hand..."]:18: in function <[string "local nodes_handlers_cleanuppage = nodes.hand..."]:10> (...tail calls...) .../context/tex/texmf-context/tex/context/base/node-shp.lua:171: in function 'finalizebox' [\directlua]:1: in main chunk 1 >> % !TEX encoding = UTF-8 Unicode See attached log file. If I remove the hyphenation, everything works, but the hyphenation is wrong. I'm using: current version: 2015.02.03 23:55 Greetings Axel

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\setupcaptions question
by joerg van den hoff 12 Feb '15

12 Feb '15

I want to use `numberstopper' for figure caption customization like so: \setupcaptions[numberstopper={:}] this works fine for the caption itself (i.e. I get, e.g. "Figure 1: caption text") _but_ references to the figure via a defined label such as [fig:example] in the body text do include the numberstopper, too, which is highly undesirable in my view, since, e.g., "... see Figure 1: for an example. ..." should rather read "... see Figure 1 for an example. ..." i.e. the numberstopper should be omitted (at least optionally) when referencing. question: how can this be achieved? thx/j

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