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\startMPpage ... \stopMPpage
by David Arnold 27 Dec '05

27 Dec '05

Hans, Taco, et al, There's a quote in metafun-s.pdf (page 539) that says "You can embed the graphic in a \startMPpage construct and process it with TEXEXEC. In that case you have the full MetaFun functionality available. Before processing the file, TEXEXEC will do a couple of checks on the file. It will also make sure that the auxiliary files (mpt for textext’s and mpo for outline fonts) are taken care of too." I am really unsure of what this means as the code below will attest. Simply uncomment % \startMPpage % \includeMPgraphic{EnglishRule} % \stopMPpage at the end and the file will not compile. Just what can and cannot be used between a \startMPpage ... \stopMPpage pair? This is first introduced in metafun-s.pdf on page 214 and wish there were more said there. %output=pdf \setupcolors[state=start] \definecolor[gridlines][s=0.7] \startMPinclusions color gridlines; gridlines:=\MPcolor{gridlines}; \stopMPinclusions \starttext \setupMPvariables [EnglishRule] [height=1ex, width=\localhsize, color=darkred] \startuniqueMPgraphic{EnglishRule}{height,width,color} numeric height; height=\MPvar{height}; x1=0; x3=\MPvar{width}; x2=x4=.5x3; y1=y3=0; y2:=-y4=height/2; fill z1..z2..z3 & z3..z4..z1 & cycle withcolor \MPvar{color}; \stopuniqueMPgraphic \defineblank [EnglishRule] [medium] \def\EnglishRule% {\startlinecorrection[EnglishRule] \setlocalhsize \noindent \reuseMPgraphic{EnglishRule} \stoplinecorrection} Why is this called an English line? \startnarrower \EnglishRule Is it because they cannot draw a straight one? This could be ture after a few strong beers, but then, ow do Germans draw a line? \EnglishRule \stopnarrower \defineblank [EnglishRule] [big] Why is this called an English line? \startnarrower \EnglishRule Is it because they cannot draw a straight one? This could be ture after a few strong beers, but then, ow do Germans draw a line? \EnglishRule \stopnarrower % \startMPpage % \includeMPgraphic{EnglishRule} % \stopMPpage \stoptext %%% Local Variables: %%% mode: conTeXt-en %%% End:

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\setupMPvariables in \startMPpage
by David Arnold 27 Dec '05

27 Dec '05

All, Why doesn't this work? %output=pdf \startuseMPgraphic{usquare} draw unitsquare scaled 4cm; \stopuseMPgraphic \starttext \startMPpage \useMPgraphic{square} \stopMPpage \stoptext Why doesn't this work? %output=pdf \startuseMPgraphic{usquare} draw unitsquare scaled \MPvar{u}; \stopuseMPgraphic \starttext \startMPpage \setupMPvariables[usquare][u=4cm] \includeMPgraphic{usquare} \stopMPpage \stoptext

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\definedescription question
by VnPenguin 27 Dec '05

27 Dec '05

Hi all, I'm trying to define a description: \definedescription [Desc] [location=top,hang=3,headcolor=red] But my PDF has not color for description header (I have already \setupcolors[state=start]). Another test: \definedescription [Desc] [location=top,hang=3,headstyle={\switchtobodyfont[16pt]\red\bf}] Does not work :( Question: How to define color & font size for description header ? The document of description is not complet. Search on Wiki & Mailing list can not help me. Thank you in advance, -- http://vnoss.org Vietnamese Open Source Software Community

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It works, passing text
by David Arnold 27 Dec '05

27 Dec '05

Taco, I have something that works. Thanks for hanging in there with me. %output=pdf \setupcolors[state=start] \definecolor[gridlines][s=0.7] \startMPinclusions color gridlines; gridlines:=\MPcolor{gridlines}; vardef create_grid(expr xxmin,xxmax,xxscl,yymin,yymax,yyscl,uux,uuy)= for k=xxmin step xxscl until xxmax: draw (xmin*uux,k*uuy)--(xmax*uux,k*uuy) withcolor \MPcolor {gridlines}; draw (k*uux,ymin*uuy)--(k*uux,ymax*uuy) withcolor \MPcolor {gridlines}; endfor; enddef; vardef create_axes (expr xxmin,xxmax,yymin,yymax,uux,uuy) (text xlbl,ylbl) = textextoffset:=3pt; picture p; p:=textext.rt(xlbl); p:=p shifted (1.05*xxmax*ux,0); picture q; q:=textext.top(ylbl); q:=q shifted (0,1.05*yymax*uy); drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0); draw p; drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy); draw q; enddef; vardef drawf(expr xxmin,xxmax,yymin,yymax,uux,uuy,n)= path p; p:=(xxmin,f(xxmin)); numeric dx; dx=(xxmax-xxmin)/n; for x=xmin step dx until xxmax: p:=p--(x,f(x)); endfor; p:=p--(xxmax,f(xxmax)); path cpath; cpath:=(xxmin,yymin)--(xxmax,yymin)--(xxmax,yymax)--(xxmin,yymax)-- cycle; p:=p cutbefore cpath; p:=reverse p; p:=p cutbefore cpath; p:=p xyscaled (uux,uuy); drawdblarrow p withcolor blue; enddef; \stopMPinclusions \starttext \startMPpage %initialize function vardef f(expr x)= x*x enddef; %initialize window parameters numeric xmin, xmax, xscl, ymin, ymax, yscl; xmin:=-5; xmax:=5; xscl:=1; ymin:=-5; ymax:=5; yscl:=1; %initialize number of points numeric num_points; num_points:=100; %initialize dimensions of image numeric width, height; width=3in; height=3in; %initialize scale numeric ux, uy; (xmax-xmin)*ux=width; (ymax-ymin)*uy=height; %create the grid create_grid(xmin,xmax,xscl,ymin,ymax,yscl,ux,uy); %create the axes create_axes(xmin,xmax,ymin,ymax,ux,uy)("$x$")("$y$"); %draw the function drawf(xmin,xmax,ymin,ymax,ux,uy,num_points); \stopMPpage \stoptext %%% Local Variables: %%% mode: conTeXt-en %%% End:

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no 'D' in math-eul.tex
by Johan Sandblom 27 Dec '05

27 Dec '05

In May I discovered that there was a typo in math-eul.tex rendering the lower-case 'd' an 'e'. Amazingly, the same problem occurs also for the upper-case 'D', and requires changing the line \definemathcharacter [D] [nothing] [mr] ["45] into \definemathcharacter [D] [nothing] [mr] ["44] Apparently this beautiful font is severely underused to allow this typo to survive! Regards, Johan -- Johan Sandblom N8, MRC, Karolinska sjh t +46851776108 17176 Stockholm m +46735521477 Sweden "What is wanted is not the will to believe, but the will to find out, which is the exact opposite" - Bertrand Russell

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running ConTeXt from the new DVD
by Mojca Miklavec 27 Dec '05

27 Dec '05

Hello, I just got the new DVD, TeX Collection 2005, tried to run cdemo.bat and to compile one of the sample documents, but: >texmfstart newtexexec.rb --autopdf --pdf demo-tex.tex TeXExec | processing document 'demo-tex.tex' TeXExec | provide ctx file TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | tex engine: pdfetex TeXExec | tex format: cont-en TeXExec | progname: context This is pdfeTeX, Version 3.141592-1.30.3-2.2 (Web2c 7.5.5) \write18 enabled. I can't find the format file `pdfetex.fmt'! pdfetex: unrecognized option `--alias=context' pdfetex: unrecognized option `--undump=cont-en' TeXExec | runtime: 3.315 >Exit code: 0 ---------------------------------------------------------------- texexec --make --all cannot be executed since the CD is not writable. Can this be overcome anyhow, is there a problem specific to my PC or is this distribution on DVD unusable as such? (I often have similar "format missing" problems when I update MikTeX but then the problem disappers when I reboot the computer - not that I understand why since I refresh the database and remake all the formats each time anyway.) Thank you, Mojca

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Weird things...
by Fabio Mancinelli 27 Dec '05

27 Dec '05

Hi all... I would like to report a weird behavior when compiling the attached tex file... If I put the background layer definitions before the columnset definitions everything works well. \useexternalfigure[test][buttons][frame=true] \definelayer[graphics][x=0.5cm,y=2cm,width=\paperwidth,height=\paperheight] \setupbackgrounds[page][background=graphics] \definelayerpreset[lefttop][corner={left,top},location={right,bottom}] \setlayer[graphics][preset=lefttop]{\externalfigure[test]} \definecolumnset[threecolumns][n=3,distance=12pt] \definecolumnsetspan[spantwo][n=2] \definecolumnsetspan[spanthree][n=3] \definecolumnsethsize{threecolumns}{1}{1}\OneColumn \definecolumnsethsize{threecolumns}{1}{2}\TwoColumns \definecolumnsethsize{threecolumns}{1}{3}\ThreeColumns If I put them after then I get an "ERROR: Bad character code (648)" \definecolumnset[threecolumns][n=3,distance=12pt] \definecolumnsetspan[spantwo][n=2] \definecolumnsetspan[spanthree][n=3] \definecolumnsethsize{threecolumns}{1}{1}\OneColumn \definecolumnsethsize{threecolumns}{1}{2}\TwoColumns \definecolumnsethsize{threecolumns}{1}{3}\ThreeColumns \useexternalfigure[test][buttons][frame=true] \definelayer[graphics][x=0.5cm,y=2cm,width=\paperwidth,height=\paperheight] \setupbackgrounds[page][background=graphics] \definelayerpreset[lefttop][corner={left,top},location={right,bottom}] \setlayer[graphics][preset=lefttop]{\externalfigure[test]} I have spent one hour trying to figure out what was wrong with my file and only by hasard, after having done some experiments, I put the things in the "working" order. Why this happens? See you, Fabio

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Re: [NTG-context] smaller symbol
by Ciro Soto 27 Dec '05

27 Dec '05

Thank you Taco and Mojca. I had tried with \guillemotright and \guillemotleft based on a latex manual I found in the web. Since it didn't work, I then tried the \ll and \gg combination. Thank you Taco for the right syntax of the keywords. Ciro On 12/27/05, Mojca Miklavec <mojca.miklavec.lists(a)gmail.com> wrote: > > On 12/26/05, Ciro Soto wrote: > > Invisible Friends: > > > > I am trying to use \ll and \gg instead of quotation marks. > > The problem is that they are too big for my taste. > > What would be the easiest way to make them, say 0.75\bodyfontsize ? > > I guess that \leftguillemot instead of "\ll" already solves the > problem, but if you really want to scale them, it's most elegant to do > it this way: > > \installlanguage > [es] > [leftquotation={\scale[height=.75ex]{\leftguillemot}}, > rightquotation={\scale[height=.75ex]{\rightguillemot}}] > % .75\bodyfontsize is way too big > % or the ugly \fakeleftguillemot instead of \leftguillemot, as Taco > proposed > > \mainlanguage[es] > \starttext > \quotation{To quote or not to quote,} that's the question! > \stoptext > > (Even if you don't need to scale them, this is the way how to get > guillemots instead of "double commas".) > > The only problem is that they're scaled so that baseline remains where > it is: quotation marks are placed too low because of that. So you > probably want to do raise them a bit as well: > \raise.25ex\hbox{\scale[height=.5ex]{\rightguillemot}} > > Mojca > -- "All problems are at the interface. Each one of them has a solution." from: "The Guitar Maker: An Exploration of Wisdom, Design and Love." A novel by C. A. Soto Aguirre. http://www.TheGuitarMakerExploration.com/

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smaller symbol
by Ciro Soto 27 Dec '05

27 Dec '05

Invisible Friends: I am trying to use \ll and \gg instead of quotation marks. The problem is that they are too big for my taste. What would be the easiest way to make them, say 0.75\bodyfontsize ? thank you Ciro PS: thank you for the help with the upside down question marks...

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Passing text to Metapost functions
by David Arnold 27 Dec '05

27 Dec '05

All, I'd like to do something like this: create_axes(xmin,xmax,ymin,ymax,ux,uy)(x); Where x will be a label for my x-axis. But once in a while it might be t or u or some other thing such as "Days." I want to use it like this: beginfig(0); %initialize window parameters numeric xmin, xmax, xscl, ymin, ymax, yscl; xmin:=-5; xmax:=5; xscl:=1; ymin:=-5; ymax:=5; yscl:=1; %initialize scale numeric ux, uy; (xmax-xmin)*ux=4in; (ymax-ymin)*uy=3in; %create-axes function vardef create_axes(expr xxmin, xxmax, yymin, yymax, uux, uuy)(text xlbl)= drawdblarrow (1.05*xxmin*uux,0)--(1.05*xxmax*uux,0); label.rt(btex $xlbl$, (1.05*xxmax*uux,0)); drawdblarrow (0,1.05*yymin*uuy)--(0,1.05*yymax*uuy); enddef; create_axes(xmin,xmax,ymin,ymax,ux,uy)(x); endfig; end. Two questions: 1. How can I do this in plain metapost? 2. What would be the "Context Way?"

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