November 2016 - ntg-context - NTG Mailing Lists

Influence enumeration spacing
by Jan Willem Flamma 05 Nov '16

05 Nov '16

Dear list members, In the MWE below the amount of vertical space between the enumeration header and the question text seems to fully controlled by the global \setupwhitespace[big] setting. I would like to reduce the distance beteen the enumeration header and the question text but inbetween={\blank[nowhite]} seems to be ignored. I tried none, disable etc. as well. Of course I could set \setupwhitespace[small] but this would influence the amount whitespace between my paragraph text which should be set to big. How can I minimize the inbetween distance without changing the spacing between paragraphs? \setupwhitespace[big] \defineblock[question] \keepblocks[question] \defineenumeration [question] [inbetween={\blank[nowhite]}] \starttext \input ward \input ward \beginquestion \startquestion Text text text \startitemize[a,packed] \item answer a \item answer b \stopitemize \stopquestion \endquestion \stoptext Kind regards Jan Willem Flamma

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Framedtext in a float
by Fabrice Couvreur 05 Nov '16

05 Nov '16

Hello, How to make the width of framedtext automatically adapts to its contents. Fabrice \definefloat [recipe] [figure] \setupfloat [recipe] [default={right,none}] \definecolor[MyColorA][r=0.8784, g=0.8784, b=0.8784] \definecolor[MyColorB][c=0.00,m=0.27,y=1.00,k=0.00] \defineframedtext [MyFrame] [before={\blank}, after={\blank}, frame=off, background=MyFrame, width=6cm, height=fit] \startuseMPgraphic{MyFrame} path b; picture p; p := textext.rt("\tfx\white\framedtextparameter{Title}"); p := p shifted (2BodyFontSize,OverlayHeight-ypart center p+.25ExHeight); b := boundingbox p enlarged .3EmWidth ; fill OverlayBox withcolor \MPcolor{MyColorA}; fill b withcolor \MPcolor{MyColorB} ; draw p ; setbounds currentpicture to boundingbox currentpicture enlarged 2mm ; \stopuseMPgraphic \defineoverlay [MyFrame] [\useMPgraphic{MyFrame}] \starttext \placerecipe{}{ \startMyFrame[Title=Info] L'histogramme est constitué de rectangles dont les bases correspondent aux classes et dont les aires sont proportionnelles aux effectifs ou fréquences des classes. \stopMyFrame} \input Knuth \stoptext

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Bug in latest beta, shifted metapost (possibly with drawarrow)
by Mikael P. Sundqvist 04 Nov '16

04 Nov '16

Dear list, the example below has shifted axes. I updated to the latest standalone earlier today. The problem was not present some weeks ago. In particular look at the red line that should start from the origin... \starttext \startMPpage ut:=1.0cm; ux:=0.6cm; vardef diffp(expr riktn) = ((-1,0)--(1,0)) rotatedaround (origin,angle(ut,riktn*ux)) enddef; path taxel,xaxel; taxel:=((-1.4,0)--(5.4,0)); xaxel:=((0,-1.4)--(0,4.6)); drawarrow taxel xyscaled(ut,ux); drawarrow xaxel xyscaled(ut,ux); label.bot("$t$", (point length(taxel) of taxel) xyscaled(ut,ux)); label.lft("$P$", (point length(xaxel) of xaxel) xyscaled(ut,ux)); draw image( vardef fun(expr t, x) = x*(3-x) enddef; for i=-1 step 0.5 until 5 : for j=-1 step 0.5 until 4 : ii:=i; jj:=j; draw diffp(fun(ii,jj)) scaled 2bp shifted (ii*ut,jj*ux); endfor; endfor; draw function (2, "x", "3/(1+2*exp(-3*x))" ,-1, 5, 1/5) xyscaled (ut,ux); draw (0,0)--(3,3) xyscaled(ut,ux) withcolor darkred; ); \stopMPpage \stoptext /Mikael

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interline space for \setuplist[alternative=d]
by Pablo Rodriguez 02 Nov '16

02 Nov '16

Hans, I have the following sample: \setuppapersize[A6] \setupinteraction[state=start, focus=standard] \placebookmarks[chapter, section][chapter, section] \startsetups[lsect] \setupinterlinespace[line=28ex] \stopsetups \setuplist[section][style=\tfxx, alternative=d, setups=lsect] \starttext \completecontent \dorecurse{5}{\chapter{Knuth}\input knuth \dorecurse{8}{\section{Zapf}\input zapf}} \stoptext I cannot set the interline space for \setuplist[section]. Wolfgang kindly provided me with a workaround: \setuppapersize[A6] \setupinteraction[state=start, focus=standard] \placebookmarks[chapter, section][chapter, section] \startsetups[plsect] \start \setupinterlinespace [line=2.8ex] \placelist [section] [alternative=d, numbersegments=section, pagenumber=no, style=\itx] \par \stop \stopsetups \setuplist [chapter] [before={\blank[medium]}, after=\directsetup{plsect}] \starttext \placelist[chapter] \dorecurse{5}{\chapter{Knuth}\input knuth \dorecurse{8}{\section{Zapf}\input zapf}} \stoptext But the issue I discovered recently is that the first section links from the table of contents reach the chapter destination (and not the first section). Bookmarks work fine, instead. Wouldn’t it be better to improve the alternative=d in \setuplist, so that interline space could be set up with the setups option? Many thanks for your help, Pablo -- http://www.ousia.tk

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\definefallbackfamily for math fonts, again
by Csikos Bela 02 Nov '16

02 Nov '16

Dear list members: I have the following context code: \definefontfamily [doc] [rm] [TeX Gyre Bonum] \definefontfamily [doc] [ss] [Tex Gyre Adventor] \definefallbackfamily [doc] [mm] [Tex Gyre Adventor] [range=0x00000-0x2FA1F,force=yes] \definefontfamily [doc] [mm] [TeX Gyre Pagella Math] \setupbodyfont[doc,10pt] \starttext Text font: <SERIF C H O N P>, {\ss <SANS SERIF C H O N P>} \\ Math font: \m{<DEFAULT~C~H~O~N~P>}, \m{\rm <SERIF~C~H~O~N~P>}, \m{\ss <SANS~SERIF~C~H~O~N~P>} \stoptext 1. In the pdf result \rm math font is Tex Gyre Adventor and \ss math is Tex Gyre Pagella. How can I have context to print math \rm with Tex Gyre Pagella serif, and math \ss with Tex Gyre Adventor font? Why a roman/serif font is replaced with a sans serif font? 2. What range would be the most correct to include all characters for replacement? Thank you in advance, bcsikos

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grid, interlinespace
by Michael Eidenbenz 02 Nov '16

02 Nov '16

Hello I want my text on a grid and there should be no gap between the top and the capital letters of the first line. I managed to get this by changing the height parameter of \setupinterlinespace with a factor I calculated for the font with this formula: CapHeight/exheight / line = height CapHeight and exheight are font specific numbers that I got from https://tug.org/TUGboat/tb34-2/tb107sharpe.pdf for lmroman this gives me: 683 / 431 / 2.8 = .566 for height in interlinespace Although there is no gap to the top lines are jumping. making the factor bigger helps. but smaller fonts wont snap to the grid. What is happening here? And is this method of changing the height the right one? Thanks Michael ------ \showgrid \setuplayout [grid=yes] \starttext \setupinterlinespace [ height=.566, line=2.8ex, ] \setupbodyfont [10pt] MMMMMMMMMM on grid but jumping\par \dorecurse{3}{\input tufte \par} \page \setupinterlinespace [ height=.575, line=2.8ex, ] \setupbodyfont [10pt] MMMMMMMMMM on grid\par \dorecurse{6}{\input tufte \par} \page \setupbodyfont [18pt] MMMMMMMMMM on grid\par \dorecurse{2}{\input tufte \par} \page \setupbodyfont [7pt] MMMMMMMMMM on grid\par \dorecurse{10}{\input tufte\par} \page \setupbodyfont [6pt] MMMMMMMMMM NOT on grid\par \dorecurse{10}{\input tufte \par} \page \setupinterlinespace [ height=.615, line=2.8ex, ] \setupbodyfont [6pt] MMMMMMMMMM on grid but gap to top\par \dorecurse{10}{\input tufte \par} \page \setupbodyfont [18pt] MMMMMMMMMM on grid but gap to top\par \dorecurse{2}{\input tufte \par} \page \stoptext -----

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Use \unit for value and uncertainty
by Florian Leupold 02 Nov '16

02 Nov '16

Dear list Is it possible to use the units module (in MKIV) for value plusminus uncertainty in a way similar to the \SI command in LaTeX, like \unit{(1.59\pm2)e-19 coulomb} or \unit{1.59(2)e-19 coulomb}? Thanks and best regards, Florian

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bug in parsed-xml?
by Pablo Rodriguez 01 Nov '16

01 Nov '16

Dear list, I have the following sample: \setupindenting[yes, big] \starttext \starttyping[option=parsed-xml] <code> <text> <body> <p>word</p> </body> </text> </code> \stoptyping \stoptext I’m afraid I found two issues: For some reason, ConTeXt adds extra space before the last line. I think this may be a bug. With indenting set for the rest of the document, ConTeXt applies it also to typing. As far as I know, typing shouldn’t be automatically indented. Could anyone confirm whether the issues are bugs in parsed-xml? Many thanks for your help, Pablo -- http://www.ousia.tk

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ConTeXt and duotone graphics
by Piotr Kopszak 01 Nov '16

01 Nov '16

Hello list, I have just came across this little script which allows to create duotone pdfs with DeviceN channel. The script takes two grayscale tifs as arguments and returns a pdf duotone. I guess it shouldn't be too difficult to include it in the ConTeXt processing chain. Probably one could include a command in a source file which would reference both files used for creation of a duotone image and the resulting image would be used in the final pdf. How would you go about implementing such a coupling? Here is the link to the script http://stdin.fr/Bazar/SpotColorImages Best Piotr -- http://okle.pl

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