January 2020 - ntg-context - NTG Mailing Lists

beta vs current
by Hans Hagen 30 Jan '20

30 Jan '20

Hi, Already for quite some years the 'current' context release is the one that ends up on texlive. The rest of the year we talk about betas and very rarely an alpha release. This distinction no longer makes sense. From now on there will be no alpha, beta or current (with latest begin the most recent of the three, when present): we only will have latest. Most users follow the latest anyway and keeping a copy of some tree is cheap. There will of course be the yearly tex live snapshots and these will have the year attached to them. So, effectively nothing changes, apart from the fact that we no longer use the labels (and distinction on the website). A more fundamental distinction is between the versions: pdftex|xetex : mkii (probaly not used that much any longer) luatex|luajittex : mkiv (also the test for luatex dev) luametatex : lmtx (the (upcoming) real deal) Mojca and I are diuscussing / working on an upgrade of the context garden installations and repositories but more about that later, 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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[question] \clipping some data from a pdf
by Floris van Manen 30 Jan '20

30 Jan '20

Does anyone know? Using the latest LMTX, i try to clip some portion of an external pdf page, then resize that portion on top a new page. i use the \clip command. \starttext \scale[width=100mm, hwight=100mm]{\clip[width=150mm, height=120mm, hoffset=30mm, voffset=40mm]{\externalfigure[drawing.pdf]}} % incorrect \scale[width=100mm, hwight=100mm]{\clip[width=150mm, height=120mm, hoffset=30mm, voffset=136mm]{\externalfigure[drawing.pdf]}} % correct \stoptext I noticed that the voffset parameter *always* counts from the top/left of the external source. Also if the source has its origin defined at the lower/left corner. Is that intentional? It is confusing as when i place a rectangle on top of the clip i want to extract from the source pdf, the x,w,w,h of that rectangle will not match the parameter needed for the \clip command. Or does there happen to be some snazzy tool out there to get the coordinates of embedden images within a pdf? .Floris

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checking whether file is landscape or portrait
by Pablo Rodriguez 30 Jan '20

30 Jan '20

Dear list, I have to check whether an external PDF document is portrait or landscape (in order to manipulate it in different ways). From what I understand of grph-inc.mkiv, I came with the following sample: \unprotect \def\figureXSize{\clf_figurestatus{width}{}} \def\figureYSize{\clf_figurestatus{height}{}} \protect \setupexternalfigures[location=default] \starttext \getfiguredimensions[cow.pdf] \figuresize\\ \figurelabel\\ \figureXSize\\ \figureYSize\\ \ifnum\figureXSize<\figureYSize portrait\else landscape\fi \stoptext I feel bad of abusing the ConTeXt source in such a miserable way. But I’m afraid this is the best I can. Is there no standard way to check portrait or landscape on a given figure? A conditional for that would be useful. At least, I would like to know how to get image dimension numbers suitable to be deployed with \ifnum. Many thanks for your help, Pablo -- http://www.ousia.tk

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removing extra margins
by Pablo Rodriguez 29 Jan '20

29 Jan '20

Dear list, I need to add a PDF page, but removing extra margins that it contains. A sample would be: \setupexternalfigures[location=default] \starttext \externalfigure[cow.pdf] \stoptext How could I crop 2ex from the left and top margins in the code above? Many thanks for your help, Pablo -- http://www.ousia.tk

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Superios with Cardo font
by Denis Maier 28 Jan '20

28 Jan '20

Hi, I am trying to use the Cardo font with superior figures. But somehow these seems to work differently here than with other fonts: ==================== \definefontfeature[default][default][ onum=yes, pnum=yes, ] \definefontfeature[f:newstyle][onum=no,pnum=no] \definefontfamily[cardo][rm][Cardo] \definefontfamily[libertine][rm][Linux Libertine O] \starttext \setupbodyfont[cardo] 12345 {\feature[+][f:superiors]12345} 12345 {\feature[+][f:newstyle]\feature[+][f:superiors]12345} \setupbodyfont[libertine] 12345 {\feature[+][f:superiors]12345} 12345 {\feature[+][f:newstyle]\feature[+][f:superiors]12345} \stoptext ==================== Why is it that I have to manually disable onum and pnum with Cardo for sups to work? (Note: Cardo is a ttf font, Linux Libertine O is a otf) By the way, what is the correct way to define a new font feature for superios? (VerticalPosition=Superior; sups=yes; VerticalPosition=Superscript ...) Best, Denis

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columnset issues
by Henning Hraban Ramm 27 Jan '20

27 Jan '20

Hi again. I use columnsets and wanted to setup my section titles to have one blank line before and none after them. If I use before={\blank[line]}, I sometimes don’t get that blank line. If I use \blank in my section command, I get it always, but also if the section starts on top of a column. How can I reliably get one blank line before a section title, but not on the top of a column? That’s the original problem. The MWE also shows: – There’s irregular space at the top of columns, esp. on the first page. – Sometimes the multi-line section title is moved into the previous paragraph. These issues get fixed with grid=yes. The original problem is also fixed in the MWE if I enable grid mode, there are just sometimes two blank lines instead of one. In my actual project I get one or zero lines. Couldn’t reproduce that in a MWE. \usemodule[visual] \setuppapersize[A5] \showframe[text] \definecolor[fakerulecolor][gray] %\setuplayout[grid=yes] %\showgrid \define[2]\MySection{\vbox{% \definecolor[fakerulecolor][blue] %\blank[line,max]% {\strut #2}\par }} \setuphead[section][ command=\MySection, before={\blank[line]}, %before=, after=, style=\tf, ] \definecolumnset[Two][n=2] \starttext % \startcolumnset[Two] \dorecurse{10}{ \section{\fakewords{3}{15}} \fakewords{10}{50}\par \fakewords{10}{50}\par \fakewords{10}{50}\par } \stopcolumnset \stoptext

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new lmtx beta
by Hans Hagen 26 Jan '20

26 Jan '20

Hi, I uploaded a new beta (mostly lmtx). Challenged by Mojca we managed to get native compilation under mswindows working in visual studio (and soon the compile farm will do several windows compilation variants) so future installation can have either native binaries or crosscompiles (they have comparable performance with the native ones being a bit smaller). The current upload still has crosscompiled binaries. 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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A question about whatever (Metapost)
by Fabrice Couvreur 26 Jan '20

26 Jan '20

Hi, The point M is such that the line (CM) is perpendicular to the line (NP). I do not understand the error of this code. Thank you Fabrice \usecolors[xwi] \starttext \startMPcode path carre, p; carre = unitsquare scaled 138; pair a, b, c, d, N, P, M; a = point 0 of carre; b = point 1 of carre; c = point 2 of carre; d = point 3 of carre; p = b -- d; N = whatever[a,d]; P = whatever[a,b]; M = whatever[b,d]; (M - c) dotprod (P - N) = 0; draw M -- c; draw p withcolor \MPcolor{navy}; draw carre withcolor \MPcolor{firebrick}; label.lft("$A$", point 0 of carre); label.lrt("$B$", point 1 of carre); label.urt("$C$", point 2 of carre); label.ulft("$D$", point 3 of carre); \stopMPcode \stoptext

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line numbering within frame
by Thomas A. Schmitz 26 Jan '20

26 Jan '20

Hi all, I want line numbering within a framed environment, and I need two (at least) independent numbering systems. I hit a similar problem in 2016, and Wolfgang provided a solution (defining different numbering environment). However, this does not work within a frame. The example shows the problem: \starttext % This works: \definelinenumbering[One] \setuplinenumbering[One] [style=\ss, distance=-2ex, step=2, location=inleft, start=20, color=darkblue] \startlinenumbering[One] \input knuth \stoplinenumbering \blank [line] \definelinenumbering[Two] \setuplinenumbering[Two] [style=\bf, distance=-2ex, step=3, location=inleft, start=4, color=darkred] \startlinenumbering[Two] \input klein \stoplinenumbering % This fails: \framed [background=color, backgroundcolor=gray, align={normal,hanging,stretch,tolerant}, frame=off, loffset=6ex, width=\textwidth, foregroundstyle=\ss] {\definelinenumbering[Three] \setuplinenumbering[Three] [style=\ss, distance=-2ex, step=2, location=inleft, start=20, color=darkblue] \startlinenumbering[Three] \input knuth \stoplinenumbering \blank [line] \definelinenumbering[Four] \setuplinenumbering[Four] [style=\bf, distance=-2ex, step=3, location=inleft, start=4, color=darkred] \startlinenumbering[Four] \input klein \stoplinenumbering} \stoptext The framed environment fails with the error message "Missing number, treated as zero.” Does anyone know how this can be fixed? All best Thomas

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margintext and floats in the margin
by Otared Kavian 26 Jan '20

26 Jan '20

Hi, Is it possible to put some short notes in the margin, together with a float? Below is an example, which puts the float on top of the text in the margin. The option « stack=yes » works fine for the margintext when there is no float, but it does not seems to be an option which puts the figure and margintext in a sort of stack. Thanks for any advice: Otared K. % begin margintext-float.tex \setuppapersize[A4][A4] \setuplayout[ width=120mm, leftmargin=25mm,rightmargin=50mm] \setupmargindata[margintext] [align=raggedright, stack=yes, location=outer, style={\rm}] \showframe \startbuffer[sine] numeric u ; u = 5mm ; draw function (1,"x","1.5*sin(x)",0,710/113,.01) scaled u withcolor transparent(1,.5,darkblue) withpen pencircle scaled 2pt ; \stopbuffer \starttext This is some text.\margintext{This is a remark in the margin.} This is some more text.\margintext{This text is also in the margin.} \startplacefigure[location=outermargin,number=no] \scale[width=\rightmarginwidth]{\processMPbuffer[sine]} \stopplacefigure \stoptext % end margintext-float.tex

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