September 2021 - ntg-context - NTG Mailing Lists

update
by Hans Hagen 14 Sep '21

14 Sep '21

Hi, I uploaded a new lmtx (had forgotten to to it friday) . There are not that many visible changes but on is that i'm playing with some 'improvements' to inserts. Hopefully there are no side effects but the idea is to have somewhat better (more robust and predictable) support for e.g. footnotes in situations that are not natural to tex (like columns). The first mechanism to benefit from that is page columns but all that is a stepwise process. I keep track of that in yet another lowlevel manual. These column things are on the agenda for next month and beyond. (In a next upload the new marking and tabulate optimization might become default but for now i test that locally.) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------

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Setting up the double pages of part beginnings
by Christian Dekant 13 Sep '21

13 Sep '21

Dear List, I am trying to set up double pages at the beginning of a new part in such a way that: - on an odd/right-hand page there will be number and the title typeset in some fashion, and - on the even/left-hand page there should be a full (printpaper)size image. If the part title ends up on an even page then there is no additional page break (but then image and title are not on the same double-page obviously). But there is a page break (and an empty left page) when the part title ends up on an odd page (when you put page=right e.g.) as in the following example: % % How to get rid of the empty page preceding a part title? % \setuppagenumbering [alternative=doublesided] \setupexternalfigures[location=default] % cow % startTEXpage does not increase page number => incrementpagenumber % trimming in the print shop => printpaperwidth/height \define[1]\FullScreen{\startTEXpage\externalfigure[#1][width=\printpaperwidth,height=\printpaperheight]\stopTEXpage\incrementpagenumber} % tried page=yes/no/right/odd \setuphead [part] [placehead=yes, page=right, before={\nowhitespace}, % ??? ] \starttext \completecontent \FullScreen{cow} \startpart[title={A nice part}] Some text ... \stoppart \FullScreen{cow} \startpart[title={A nice part}] Some text ... \stoppart \stoptext On an additional note: I would love to utilise the XML capabilities of context, so ... is the usage of \startTEpage XML-export-friendly? Anyway, best regards, thank you for your patience in advance and a happy weekend for everybody! Cheers Christian

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Image cropped
by Fabrice Couvreur 13 Sep '21

13 Sep '21

Hello, I like to put a logo on my statements but I noticed that the image is cropped on the edge. I tried to change the printer's print settings but was unsuccessful. Thanks Fabrice \setuplayout[width=middle,height=middle] \setupfootertexts [margin] [] [{\offset[y=\strutdp]{\externalfigure[logo.pdf][factor=max]}}] [] [{\offset[y=\strutdp]{\externalfigure[logo.pdf][factor=max]}}] \showframe \starttext \dorecurse{8}{\input knuth} \stoptext

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by Jano Kula 13 Sep '21

13 Sep '21

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textbackground for text of different size
by Sylvain Hubert 13 Sep '21

13 Sep '21

Dear List, the red highlight block in the following example is not covering the two 40pt characters: \definetextbackground[important][frame=no,background=color,backgroundcolor=red] \starttext abc\important{123{\switchtobodyfont[40pt]45}xy}z \stoptext Is there an option that fixes this? Thanks! Best, Sylvain

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positioning of metapost figure
by Sylvain Hubert 13 Sep '21

13 Sep '21

Dear List, The following code draws a circle at the center of the page, ignoring the "shifted" part. \startuniqueMPgraphic{concept} draw fullcircle scaled 1cm shifted (10cm,10cm); \stopuniqueMPgraphic \defineoverlay[concept][\uniqueMPgraphic{concept}] \setupbackgrounds[page][background=concept] \starttext . \stoptext How should the metapost background figure be positioned correctly? Thanks! Best, Sylvain

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Weird error when using \startformula inside lua
by Aditya Mahajan 12 Sep '21

12 Sep '21

I sometimes define lua functions for showing out worked out calculations. The following minimal example shows that context([[\startformula ... \stopformula]]) fails in LMTX with an error message: tex error > tex error on line 3 in file ./test.tex: Undefined control sequence \undefined MWE: \startluacode thirddata = thirddata or {} local comment = [[ This is a famous formula \startformula a^2 + b^2 = c^2 \stopformula ]] function thirddata.explanation() context(comment) end \stopluacode \starttext \ctxlua{thirddata.explanation()} \stoptext The actual use case is more complicated (where I use templates, so I don't want to convert everything to context.startformula() etc.). The example compiles with MkIV but not LMTX. Any idea what is going on? Thanks, Aditya

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ConTeXt inserts additional dots for Iosevka font
by Marcel Fabian Krüger 12 Sep '21

12 Sep '21

Hi, ConTeXt has some issues with the character variant features of the Iosevka font available at https://github.com/be5invis/Iosevka/releases/download/v10.1.1/super-ttc-ios… E.g. the following document \definefontfeature [default:test] [default] [cv36=2,cv26=6] \definefont [SomeFont] [name:iosevka*default:test] \starttext \SomeFont I live in a dot-heavy world. \stoptext has six dots instead of one dot over each "i". Tests with multiple other font shapers and inspection of the font file confirmed that this is not intentional behavior. Could you take a look at that? (Based on a luotfload bug report at https://github.com/latex3/luaotfload/issues/202) Best regards, Marcel

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Axis macro in MetaFun
by kauśika cittūr 12 Sep '21

12 Sep '21

Dear All, I am truly grateful for the new additions to MetaFun. It has greatly helped me in producing neat drawings for my academic work. In this connection, I have a few queries. Currently I am using PGFPlots (with ConTeXt) to draw simple plots from CSV data. I was wondering if there is any way to do the same in MetaFuns. That is, is it possible to do something like the following in order to obtain a line plot of the values in the 'data.csv' file? Also is it possible to have the 'labels' be the identical for all points in a given list? \startMPcode draw lmt_axis [ sx = 2mm, sy = 2mm, nx = 80, ny = 40, tx = 15, ty = 15, list = { [ connect = true, color = "darkblue", close = true, points = {data.csv}, labels = {"•"}, ] }, ] withpen pencircle scaled 0.5mm; \stopMPcode My final query: is it possible to specify a co-ordinate transform for any/all of the axes? For instance in my work, I would like to plot the y-axis in the log-scale. Thanks, kauśika

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read PDF metadata from other file
by Pablo Rodriguez 11 Sep '21

11 Sep '21

Dear list, I have the following sample: \starttext \setupinteraction [state=start, title={\cldcontext{pdfe.open("b.pdf").Info.Title}}] \null \stoptext From a document composed with \insertpages, I need to transfer medatada. But I get the raw value "feff0061" (which I guess it may be introduced by lpdf.pdfunicode). How can I get the pure text value, so I can transfer metadata from one PDF document into another PDF document? Many thanks for your help, Pablo -- http://www.ousia.tk

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