June 2012 - ntg-context - NTG Mailing Lists

Confused again :-)
by Bill Meahan 07 Jun '12

07 Jun '12

I'm getting a handle on page layout and headings but there are some things I haven't figured out. 1) How does one specify they want the "outer" margin to be a different size than the "inner" margin? "Outer," of course, is the right margin on a right-hand (odd) page and the left margin on a left-hand (even) page. 2) How does one put a frame around a margin? Layers? Overlay? \framedtext? 3) Am I correct I can use the "COMMAND" parameters in \setuplayout to specify there is some text to use as a marginal in the (chapter | section) header (using \margintext, I presume)? I am working on a couple of novels I want to typeset using ConTeXt since I think it will allow me to produce what I want for typographic style much easier than using LaTeX. I'm pretty adept at using LaTeX but brand new to ConTeXt. One of _my_ problems is so many examples on the wiki seem oriented towards people setting math which could not be farther from my intended usages. (Not that I'm unfamiliar with math, I have a degree in Physics and would have had a double degree in math except for a choice to take a different course (helpful in physics) instead of one mandatory for the math degree). Thanks! -- Bill Meahan K8QN "The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails." -- William Arthur Ward This message is digitally signed with an X.509 certificate to prove it is from me and has not been altered since it was sent.

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expansion and \processaction
by Philipp Gesang 07 Jun '12

07 Jun '12

Hi all, my goal is a macro \definestates[foo][...,...] which takes a comma list and creates a monadic macro \foo[n]. \foo[n] should return either the nth item or, if (n > list length), a default. I thought the right tools were \processcommalist to generate the mapping n-><list item>, as well as \processaction to retrieve the items. But naively I didn’t consider expansion ... My code so far: ··8<···································································· \unprotect \def\definestates{\dodoubleempty\do_define_states} \def\do_define_states[#1][#2]{% \expandafter\edef\csname#1_states\endcsname{% \nstates0 %% this is supposed to be expanded so we employ the \raw... variety \rawprocesscommalist[#2]\add_one_state% unknown=>\dummystate,% default=>\dummystate,% }% \do_do_define_states{#1}% } \let\dummystate\empty \newcount\nstates \unexpanded\def\add_one_state#1{% \advance\nstates\plusone \the\nstates=>#1,% } \def\do_do_define_states#1{% \expandafter\def\csname#1\endcsname {\expandafter\dosingleempty\csname do_#1\endcsname}% \expandafter\def\csname do_#1\endcsname[##1]{% \iffirstargument % <[DBG] cmd:#1, state:##1>\par \edef\currentstates{\csname#1_states\endcsname}% %% At this point \currentstates should yield the whole mapping so %% we can use it with \processaction. But ... % \show\currentstates % \currentstates\par %% ... here it still contains %% \nstates 0 \rawprocesscommalist [foo,bar,baz] ... %% and the next directive has an empty result: \rawprocessaction[##1][\currentstates]% \fi }% } \protect \starttext \definestates[mystates][foo,bar,baz] %% At this point I’d like \mystates_states to contain (literally) %% “1=>foo,2=>bar,3=>baz,unknown=>,default=>,” %% so the following command \mystates[1] % -> foo %% would be equivalent to %% \processaction[1][1=>foo,2=>bar,3=>baz,unknown=>,default=>,] \mystates[2] % -> bar \mystates[42] % -> dummy \stoptext ··8<···································································· My question: How can I use \[raw]processcommalist in an expanded definition? How can I get \[raw]processcommalist to operate on the expansion of its second argument? Does this even make sense? If not, what is the proper way? I’d be grateful for any advice Philipp PS: Yeah, I could use Lua for it but that’s not the question.

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Tabulate and \EQ
by Wolfgang Schuster 07 Jun '12

07 Jun '12

Hi, in MkIV there is no space in front of the \EQ symbol in the second row while in MkII there is a space. \starttext \starttabulate \NC A \EQ B \NC\NR \NC Left \EQ Right \NC\NR \stoptabulate \stoptext Wolfgang

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new layer for letter
by Peter Münster 07 Jun '12

07 Jun '12

Hello, How can I create a new layer with the letter module? I've tried this, but it does not work: --8<---------------cut here---------------start------------->8--- \usemodule[letter] \defineletterlayer[test] \defineletterelement[layer][test][default]{NEW LAYER} \setupletterlayer[test][alternative=default, x=3cm, y=3cm, state=start] \startletter Where is the \quote{NEW LAYER}? \stopletter --8<---------------cut here---------------end--------------->8--- TIA for any hints! -- Peter

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multi-page floats
by Henning Hraban Ramm 07 Jun '12

07 Jun '12

Hi again, in my current book project there are sets of full-page graphics, where there’s first a drawing, to be printed on transparent paper, followed by a water colour picture as background, i.e. a series of right page: foreground graphic right page: background graphic The transparent pages are left out in pagination. Between chapters (i.e. stories), the following macro does what I want: \def\DoublePic#1{ \page[right] % foreground picture on transparent paper \setuppagenumbering[state=stop]\setuppagenumber[state=stop]\par \resetlayer[bg] \setlayer[bg]{\externalfigure[#1-fore][height=\dimexpr(\paperheight +6mm)]} \setupbackgrounds[page][background=bg] \strut\par % page needs some content \page[right] % background picture on normal paper \setuppagenumber[state=start]\par \resetlayer[bg] \setlayer[bg]{\externalfigure[#1-back][height=\dimexpr(\paperheight +6mm)]} \setupbackgrounds[page][background=bg] \strut\par \page \setuppagenumbering[state=start] } Now, the publisher would like to move the picture pages in the middle of the stories, i.e. I need them to float "here" without manual page breaking. How can I achieve that? I’d also appreciate enhancements to my macro above. (MkIV latest beta on OSX Intel.) Thank you very much in advance! Greetlings, Hraban --- http://www.fiee.net/texnique/ http://wiki.contextgarden.net https://www.cacert.org (I'm an assurer)

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heading and a few lines at the end of a page
by Jan Pohanka 07 Jun '12

07 Jun '12

Hello, sometimes I get a heading and a single line (or two lines) at the end of the page and it does not look good? Is there any way (TeX or ConTeXt) to force pagebreak before heading in this case? Ideally I'd like to be able to specify the count of lines when this should occur. best regards Jan -- Tato zpráva byla vytvořena převratnou poštovní aplikací Opery: http://www.opera.com/mail/

2 1

Broken chem module?
by Kip Warner 06 Jun '12

06 Jun '12

Hey list, The following minimal does not appear to typeset the reaction properly in 2012.05.30. \starttext \placeformula[reaction:Sabatier Reaction] \startformula \inlinechemical{CO_2,+,4H_2,->,CH_4,+,2H_2O,+,heat} \stopformula \stoptext But maybe I am not doing something right. -- Kip Warner -- Software Engineer OpenPGP encrypted/signed mail preferred http://www.thevertigo.com

3 5

gnuplot with ConTeXt standalone
by Xiao-Yong Jin 06 Jun '12

06 Jun '12

Hi, I just tried out the ConTeXt standalone and found out it did not work with my gnuplot files. I have been using texlive 2011, which works fine. With the "context" command from standalone, the following error occurs, ----- Error begins ----- ! Undefined control sequence. system > tex > error on line 4 in file /Users/jin/pkgs/ConTeXt/tex/texmf-context/tex/context/base/cont-yes.mkiv: Undefined control sequence ... 1 %D \module 2 %D [ file=cont-yes, 3 %D version=2012.06.01, 4 >> %D title=\CONTEXT\ Miscellaneous Macros, 5 %D subtitle=Startup Stub, 6 %D author=Hans Hagen, 7 %D date=\currentdate, 8 %D copyright={PRAGMA ADE \& \CONTEXT\ Development Team}] 9 %C 10 %C This module is part of the \CONTEXT\ macro||package and is 11 %C therefore copyrighted by \PRAGMA. See mreadme.pdf for 12 %C details. 13 14 % At some point I will reconsider the \starttext .. \stoptext \startGNUPLOTpage ->\begingroup \obeyMPlines \dostartGNUPLOTpage l.4 \startGNUPLOTpage ----- Error ends ----- I am not really sure which line is the error. Please excuse me if I pasted too much. The version of context from the standalone is ConTeXt ver: 2012.06.05 09:16 MKIV fmt: 2012.6.5 int: english/english As I have mentioned, the same file works fine with context in texlive 2011, which has version ConTeXt ver: 2011.05.18 18:04 MKIV fmt: 2012.4.5 int: english/english It looks like only two weeks difference. I thought I should pass along this issue to experts on the list. Thanks, Xiao-Yong

3 6

Chapter layout with \structureuservariable and a makeup
by Marco 06 Jun '12

06 Jun '12

Hi, I fail to use \structureuservariable to print a value on the page preceding a chapter. Example: \setuphead [chapter] [before=\setups{chap}, command=\myChap] \startsetups chap \startmakeup setups\crlf structureuservariable foo: \structureuservariable{foo} \stopmakeup \stopsetups \define[2]\myChap{% \startmakeup command\crlf structureuservariable foo: \structureuservariable{foo} \stopmakeup} \starttext \startchapter [title=First][foo=one] \input knuth \stopchapter \startchapter [title=Second][foo=two] \input knuth \stopchapter \stoptext Problems -------- \structureuservariable does not work with the “before” key. In the first chapter the value is empty and in the second chapter it has the value from the first one. That means, it is designed to be used with the “command” key. When used with the “command” key, the values are correct. However, the following chapter text always appears on the same page, even when a makeup or a manual page break is used. Additionally you have to mess around with the two arguments of \myChap, which easily leads to inconsistent spacing (that's why I used the “before” key in the first place). \setuphead doesn't seem to support a “setups=…” key, unfortunately. What would be the solution for this? Marco

1 0

Changing math font - sansserif - sans serif
by Mathieu Dupont 06 Jun '12

06 Jun '12

Hi mailing list, Could someone help me figuring out what is the simplest way to have all my math font without serif, in the small example below, without losing anything, such as my \tau parameter ? Thank you very much for any hint ! \enableregime[il1] \setupbodyfont[sansserif,11pt] \starttext \startformula \startalign \NC Q_{x_T}(H_0)\equiv Q(H_0)\NC=\sum_{H_1,\dots,H_{\tau^*-1}}\left(\prod_{\tau=0}^{\tau^*-1} h_{x_Tx_{T_0}}(H_\tau|H_{\tau+1})\;P_{x_{T_0}}(H_{\tau+1}|H_\tau)\right)\NR \NC\NC=\sum_{H_1,\dots,H_{\tau^*-1}}\left(\prod_{\tau=0}^{\tau^*-1} h_{x_Tx_{T_0}}(H_\tau|H_{\tau+1})\prod_{\tau=0}^{\tau^*-1}P_{x_{T_0}}(H_{\tau+1}|H_\tau)\right)\NR \NC\NC=\Epsilon_{P_{x_{T_0}}}\left[\prod_{\tau=0}^{\tau^*-1} h_{x_Tx_{T_0}}(H_\tau|H_{\tau+1})\right]\NR\stopalign \stopformula \stoptext Mathieu

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