May 2014 - ntg-context - NTG Mailing Lists

Metapost and Metafun
by Fabrice Couvreur 21 May '14

21 May '14

Hi, As PSTricks (which I prefer) is not yet well integrated, I decided to learn Metapost starting with a simple code. \starttext \startMPcode numeric xmin, xmax, ymin, ymax; xmin := -2.5; xmax := 2.5; ymax :=2.5 ;ymin:=-2.5; u := 2cm; vardef f(expr x) = -x*x+1 enddef; xinc := 0.001; path pts_f; pts_f := (xmin,f(xmin))*u for x=xmin+xinc step xinc until xmax+xinc: .. (x,f(x))*u endfor; path axe_x,axe_y; path screen; screen=(xmin,ymin)*u--(xmax,ymin)*u--(xmax,ymax)*u--(xmin,ymax)*u--cycle; axe_x = (xmin,0)*u -- (xmax,0)*u; axe_y = (0,ymin)*u -- (0,ymax)*u; drawarrow axe_x; drawarrow axe_y; draw pts_f withpen pencircle scaled 1; clip currentpicture to screen; \stopMPcode \stoptext Are there any routines with Metafun to improve this code? thank you, Fabrice

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Setting the style and conversion of the reference numbers for the \in command
by Maggyero 21 May '14

21 May '14

I would like to change the style and conversion of reference numbers for the \in{myprefix}{mysuffix}[mylabel] command. Is there a \setupreference[numberstyle=, numberconversion=] command to do that?

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stretching/expanding Greek characters
by Alan Bowen 21 May '14

21 May '14

I am trying to typeset some compendia found in a medieval Greek manuscript and would like to stretch or expand several characters in my font. So far, I have mostly found information about stretching the inter-word spacing (tracking). There is, however, discussion in a few places of what I want in Arabic but I am at a loss to see how I might adapt this to Greek. If this is even possible, I would be grateful for any suggestions or pointers. My Greek font, defined as a fallback, is IFAO Grec Unicode (regular only). Alan

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Blindtext
by Werner Hintze 21 May '14

21 May '14

And just another strange question: Is there any command like \blindtext (or \blinddocument) in LaTeX? I just try to figure out how Kontext works, and so it would ne fine to have some texte every time available. (I can put some text from everywhere, but the blindtext package is much more comfortable.) Thank you!

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Fwd: Oldstyle numbers
by Werner Hintze 21 May '14

21 May '14

I’m new to ConText and so my question may be a stupid one. But I hope somebody can help me: How can I activate »old style numbers« (Medievalziffern). I thought, it should work like this: \setupbodyfont[palatino, 10pt] \definefontfeature [default] [default] [onum=yes] But this doesn’t work. What do I have to do? Many thanks for your help!

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SimpleFonts
by hwitloc＠gmail.com 20 May '14

20 May '14

I just installed the "standalone" context and tried to typeset a document which uses "simplefonts" but the resolver indicates that simplefonts is not found. This isn't surprising, but I need to learn how to install simplefonts to use with the standalone. Use adding " --modules all" as an option to first-setup.sh do this? Any advice is appreciated.

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larger dot for \dot ?
by Sanjoy Mahajan 20 May '14

20 May '14

My students complain that the dot in, for example, $\dot M$ is too small and that they easily miss it. So I have been trying to make a bigger one, but haven't found a solution that plays nicely with the surrounding math. For example, \def\mydot{\overset{\externalfigure[dot.pdf]}} %bigger than usual one \def\Vdot{\mydot V} \starttext $\rho\Vdot\omega$ % loose spacing $\rho V\omega$ % tighter spacing \stoptext where dot.pdf is a circle of radius 0.8bp (attached). But the \Vdot gets wrapped in an hbox (inside \overset), so the surrounding space is too large. I also tried a metafun approach \startuniqueMPgraphic{math:mydot} fill unitcircle scaled 2 shifted (OverlayWidth/2-1,OverlayHeight+OverlayOffset); path q; q:= unitsquare xscaled OverlayWidth yscaled (OverlayHeight+OverlayOffset+1); setbounds currentpicture to q; \stopuniqueMPgraphic \definemathornament [mathmydot] [mp=math:mydot] \starttext $\rho\mathmydot{V}\omega$ $\rho V\omega$ $\rho\mathmydot{V}_0^2\omega$ $\rho\dot{V}_0^2\omega$ \stoptext The $\rho\mathmydot{V}\omega$ looks good. But the subscripted _0 is not tucked under the V, because the bounds of the character are now a rectangle that doesn't know about its shape. I think for a similar reason the superscripted 2 is quite high. Is there more math-friendly (and elegant) way to get a fatter dot? -Sanjoy

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Entering text into layers
by Keith McKay 20 May '14

20 May '14

Colleagues I have been designing a simple document which comprises of 4 areas (3 for text, 1 for images) on an A4 page. I thought that the best way to do this would be using Layers and so far I come up with the code below after scanning the wiki. As you can see it is not very sophisticated, but I'm not a regular user of Context. The question I have is what would be the best way to add text to the various layers? Some would have quite a lot of text and I was wondering if would be better to define the text for the different layers in some way rather than enter into the braces of \setlayerframed. The code would look messy this way. Finally, can layers be positioned within layers or would it be better to use overlays? I'm thinking about adding three columns to the Footer layer. Thanks for your help Best Wishes Keith McKay \setuplayout [backspace=0cm, cutspace=0cm, width=fit, topspace=0cm, bottomspace=0cm, header=0cm, footer=0cm, height=fit] \setupexternalfigures[location={local,global}] \definelayer[Logo] \definelayer[Picture] \definelayer[Text] \definelayer[Footer] \starttext \strut \setlayerframed[Logo][x=1cm,y=1cm] [width=19cm,height=3cm,background=color,backgroundcolor=lightgrey] {Some text in here} \setlayerframed[Picture][x=1cm,y=5cm] [width=6cm,height=19.7cm,background=color,backgroundcolor=lightgrey]{\externalfigure[picture.jpg][background={foreground,figure},maxwidth=6cm]} \setlayerframed[Text][x=8cm,y=5cm] [width=12cm,height=19.7cm,background=color,backgroundcolor=lightgrey]{Text goes here} \setlayerframed[Footer][x=1cm,y=25.7cm] [width=19cm,height=3cm,background=color,backgroundcolor=lightgrey] {Footer goes here} \setupbackgrounds[text][background={Logo,Picture,Text,Footer}] \stoptext

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Interactive U3D in .pdf via ConTeXt?
by Lukáš Procházka 20 May '14

20 May '14

Hello, is there way to include U3D (or X3D after conversion) into a .pdf via ConTeXt? - An example of such an embed object and its capabilities at http://www.behaviometrix.com/public_html/brain.pdf LaTeX offers this via movie15 package; is it possible to produce such document with ConTeXt? Best regards, Lukas -- Ing. Lukáš Procházka [mailto:LPr@pontex.cz] Pontex s. r. o. [mailto:pontex@pontex.cz] [http://www.pontex.cz] Bezová 1658 147 14 Praha 4 Tel: +420 241 096 751 Fax: +420 244 461 038

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Using the margin for two purposes
by Matthias Weber 19 May '14

19 May '14

Dear All, I would like to use the margin for two different purposes: For brief notes, using \inmargin, and to mark entire paragraphs sections of the text with vertical lines. So, I’d like to be able to something like this \starttext \startsquigglyline \inmargin{read \\ this \\ first} \input{knuth} \stopsquigglyline \startthinline \inmargin{read \\ this \\ next} \input{tufte} \stopthinline \stoptext I know I could use frames to accomplish the vertical features within in the text area, but I’d prefer to use the margin so that framing paragraphs doesn’t indent the paragraphs compared to the unframed portions. But I also want to have the \inmargin notes to be lined up properly. So it looks like I would need to divide the margin into two horizontally separate regions. On left pages, the left region would be used for the \inmargin notes, and the (very thin) right region would be used for the vertical features (squigglyline and thinline). For right pages the other way around. Of course I’d also like the vertical features to extend across pages, if needed. Like so: Left Page Right Page read ( Knuth Tufte | read this ) Knuth Tufte | this first ( Knuth Tufte | next ) Knuth Tufte | ( Knuth Tufte | Is there a mechanism in place for that? Thanks for any hints! Matthias

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