February 2020 - ntg-context - NTG Mailing Lists

repeat a page inside a document
by Pablo Rodriguez 27 Feb '20

27 Feb '20

Dear list, I have the following sample: \starttext \input knuth \page[right] \setuplayout[page] \externalfigure[\jobname.pdf][page=1] \stoptext My question is how to get a page from the document you‘re compiling repeated inside the same document. I have tried to search both i-context.pdf and the wiki, but “mirror” and “repeat” seem to be bad options. Many thanks in advance, Pablo -- http://www.ousia.tk

5 11

European style Circuitikz error
by Jan-Erik Hägglöf 27 Feb '20

27 Feb '20

In page 8 inte e Circuitikz manual the settings to get European style components e.g resistors like rectangular boxes instead of default looking. It says this \usemodule[circuitikz][american] When I do this \usemodule[circuitikz][european] It gives an error. ! Package pgfkeys Error: I do not know the key '/tikz/short' and I am going to ignore it. Perhaps you misspelled it. So it must be some other way to set this, how do I make it possible? Thanks in advance /Janne

1 1

Problem with \setuparranging
by context＠vivaldi.net 27 Feb '20

27 Feb '20

Hello, I need to create a document where page arranging is mixed somhow - so that some pages are to be typeset "normally", some other placed "2 pages onto 1 page". All pages should appear as A3 size. A simplified code follows; its goal is: - page 1: to be one external figure of size A3 (red), - page 2: to be composed of one page of size A4 (green) on the left half, some text on the right half, - page 3: to be one external figure of size A3 (the same as on page 1) - page 4: to be composed of one page of size A4 on the left half, some text on the right half (as on page 2). The (unwanted) result is: - page 1: as expected, - page 2: as expected, - page 3: surprisignly A4 (red) (whilst the figure is of A3), - page 4: surprisingly A3, but some text on the left half, and no green A4. Is \setuparranging limited somehow or intended for another use? How to generate "Goal.pdf" instead of "t.pdf"? Best regards, Lukas

2 3

Shading
by Fabrice Couvreur 26 Feb '20

26 Feb '20

Hi, In the Metafun documentation on page 410, there is a shaded bullet "fill fullcircle shaded cshade". I tried to reproduce the same effect, but it is not exactly the same result. Thank you. Fabrice \starttext \startMPcode fill fullcircle scaled 4cm shaded withshademethod "circular" withshadevector (1,0) withshadecolors (red, white) ; \stopMPcode \stoptext

2 2

\setbreakpoints[compound] not working?
by Pablo Rodriguez 25 Feb '20

25 Feb '20

Dear list, I cannot get this working: \setuppapersize[A9] \setupbodyfont[26pt] \setbreakpoints[compound] \starttext 1989/3242/CEE\\ 2009/3926/UE\\ \stoptext I mean, line isn’t broken after any "/". Is this a bug in MkXL (and MkIV) or am I missing something? Many thanks for your help, Pablo -- http://www.ousia.tk

2 2

Error in MetaFun LMTX
by Jan-Erik Hägglöf 25 Feb '20

25 Feb '20

The following code gives an error, my goal is to draw 4 different arrows but only three functions successfully. The error log shows metapost > initializing number mode 'scaled' metapost log > metapost log > loading metafun, including plain.mp version 1.004 for metafun iv and xl metapost log > metapost log > >> unknown path D metapost log > ! Isolated expression. metapost log > <to be read again> metapost log > : metapost log > <*> ... :=(12cm, -1cm)--(11cm, -1cm); path D ; D : metapost log > =(4cm, -1cm)--(3cm, -1cm)... metapost log > And the code is as follows \startMPcode path A ; A :=(0cm, -1cm)--(1cm, -1cm); path B ; B :=(13.5cm, -1cm)--(14.5cm, -1cm); path C ; C :=(12cm, -1cm)--(11cm, -1cm); path D ; D : =(4cm, -1cm)--(3cm, -1cm); drawarrow A; drawarrow B; drawarrow C ; drawarrow D ; \stopMPcode Unless I uncomment D it gives the above error. Mysterious issue /Janne

3 3

Customizing \cite alternatives
by Philipp A. 24 Feb '20

24 Feb '20

Hi List, I want the comma gone from “et al.” citations, and modify the cite alternatives: - [authoryear]: (Surname, et al., 2018) → (Surname et al., 2018) - [authoryears]: Surname, et al. (2018) → Surname et al. (2018) Also I’d like to configure how many names are the maximum before all except the first are replaced by “et al.” i.e. \setupcitething[maxauthors=3]: (One, Two, Three, & Four, 2018) → (One et al., 2018) How can I do this? I didn’t find anything in the publications manual: http://pragma-ade.nl/general/manuals/mkiv-publications.pdf Best, Philipp

4 7

Accessing raw titles in textcommand in TOC
by alephzorro 21 Feb '20

21 Feb '20

Hello, I would like to display titles differently in TOC than they appear in text. For example, MyChapter1 -> 1retpahCyM. Basically any highly non-trivial transformation that really needs Lua. I've written simple Lua macros before, but the following approach trying to define textcommand does not work since I can't find the way to pass the raw title to my transform function. \startluacode userdata = userdata or {} function userdata.mytransform(title) --context(title) --this is just fine, but isn't very useful context(string.reverse(title)) end \stopluacode \def\transformtitle#1% {\ctxlua{userdata.mytransform([==[#1]==])}} \setuplist[chapter][textcommand=\transformtitle] \starttext \completecontent \startchapter[title={Sample Chapter}] \stopchapter \stoptext When I print the actual title that is passed to mytransform, all I get is \currentlistentrytitle and I haven't succeed expanding it (and there's all kind of formatting stuff and so on going on I suppose). Sections have "deeptextcommand" which is somewhat what I'm after here, but I've not found similar option for TOC. So, is there a way to get just the raw titles? Jason C.

3 4

metapost: remapping colors of an SVG picture
by mf 20 Feb '20

20 Feb '20

Hello list, I tried this: \starttext \startMPcode picture p ; p := lmt_svg [ filename = "sample.svg" ] ; draw p ; color black_rgb ; black_rgb := ( 0, 0, 0 ) ; color red_rgb ; red_rgb := ( 1, 0, 0 ) ; remapcolor( black_rgb, red_rgb ) ; recolor p ; draw p shifted ( bbwidth(p) + 5mm, 0) ; \stopMPcode \stoptext but recolor gives an error: metapost log > >> picture metapost log > ! Wrong picture color model: redpart of grey object. metapost log > <for(picture)> _f_:=(redpart(EXPR0), metapost log > greenpart(EXPR0),bluepart(EXPR0));if.bou... metapost log > metapost log > repathed->...fi;fi;else:addto._p_.also.i;fi;endfor metapost log > ;setbounds._p_.to._b_;_p_.... metapost log > <to be read again> metapost log > ; metapost log > <*> ...apcolor( black_rgb, red_rgb ) ; recolor p ; metapost log > draw grayed p shifted ( b... metapost log > My goal is to remap colors of an SVG image, like this: \starttext \startMPcode picture p ; p := lmt_svg [ filename = "sample.svg" ] ; draw p ; color black_rgb ; black_rgb := ( 0, 0, 0 ) ; cmykcolor black_cmyk ; black_cmyk := ( 0, 0, 0, 1 ) ; remapcolor( black_rgb, black_cmyk ) ; recolor p ; draw p shifted ( bbwidth(p) + 5mm, 0) ; \stopMPcode \stoptext It relates to a recent thread in the mailing list about color management. It's an attempt to use inkscape-made SVG graphics inside a CMYK workflow, without using color management. Naturally it would work under some constraints, but there's a lot of graphics you can do with Inkscape that falls inside these: - the number of colors in the input SVG should be limited, so that every color gets converted - no embedded bitmaps, only vector graphics - perhaps some other constraints on gradients, transparency, etc. A good alternative would be a remapper based on a custom lua function like this: function rgb2cmyk( r, g, b ) ... return c, m, y, k end Massi

3 6

Howto metapost textext set or change basepoint (origin) baseline of text
by Christoph Hintermüller 20 Feb '20

20 Feb '20

Hi I have the following problem. I convert a eps file using pstoedit into meta post file. When running this file through mptopdf the resulting pdf image is as expected. When i include, using the input command, the file within a startMPcode endMPcode or startMPpage stopMPpage after replacing simple draw <string>... by draw textext(<string) ... and compile the tex file with context than texts inside the graphic are schilfted bottom left. To mee it seems as textext uses a different basepoint/baseline of the text, than pstoedit assumed. Maybe in additon effects related to differences in fonts may be additional reason. My questions are What keywords do i have to enter in google or the context garden wiki search box to obtain examples and questions dealing with similar aspects How do i explicitly set the position of the text origin point within the textbox/lable box used by textext. eg. assume origin point bottom left, left on baseline, center in the middle etc. What else might i bee missing or having a wrong idea how things are done by netapost/metafun/context in this context? Best Xristoph -- -- Christoph Hintermüller Dipl.-Ing. Dr. MBA. MSc JKU Institute of Biomedical Mechatronics Altenberger Straße 69, 4040 Linz, Austria, Cell: +43 650 8827347 Tel. +43 732 2468 4813 Email: christoph.hintermueller(a)jku.at

2 3