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Re: [NTG-context] beta
by Wolfgang Werners-Lucchini 25 Sep '06

25 Sep '06

> Some beta's back, the following was working. > -------------------------- > \startMPrun > \input test.mp > \stopMPrun > \starttext > \externalfigure[test.1][width=15mm] > \stoptext > -------------------------- > with > ----------test.mp--------- > beginfig(1) > draw (0,0) -- (1cm,1cm); > endfig; > end > -------------------------- > Now, I get the error > (figures : figure test.1 can not be found) > with ConTeXt ver: 2006.09.17 Can someone verify this error please or is there something wrong with my code? Wolfgang

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\textext can fail in definitions in \startMPinclusions
by Sanjoy Mahajan 25 Sep '06

25 Sep '06

Another test file for metafun. I know that textext doesn't work in loops. I don't understand how it's implemented enough to know why, but is the reason for its not working in loops the same as the reason it doesn't work in included definitions (related to static analysis of the code)? The following file gives an example of what I mean. It gives a page saying "unknown", but if one uses draw \textext{directly} directly (the commented-out line) then it works as expected. I see the same behavior with \sometxt{}. [All with context 2006.08.08] ==================== cut here ==================== \starttext \startMPinclusions def yy = draw \textext{via yy def} enddef; \stopMPinclusions \startMPcode % draw \textext{directly}; % would give "via yy def" as the text yy; % gives "unknown" as the text on the page \stopMPcode \stoptext ==================== cut here ==================== Oh maybe here's the problem. The log file says (1.tex is the test file): system(mpost -progname=metafun -mem=metafun 1-mpgraph)...executed. Doing that by hand to get PDF gives a figure containing "unknown": $ mpost -progname=metafun -mem=metafun 1-mpgraph $ mptopdf 1-mpgraph.1 But "texexec --mpgraphic 1.mp" produces the right figure. So why does \startMPcode run the wrong command? The following works fine: ==================== cut here ==================== \starttext \startMPinclusions def yy = draw \textext{via yy def}; enddef; \stopMPinclusions \startstaticMPfigure{a} yy; \stopstaticMPfigure \usestaticMPfigure[a] \stoptext ==================== cut here ==================== The log shows startstaticMPfigure running texexec: system(texmfstart --ifchanged=1a-a.mp texexec --mpgraphic 1a-a.mp)...executed. Oh I think I know why mpost is being called with \startMPcode: It gets fooled by the label hidden inside the def, so it thinks that there is no need to run the more complicated texexec comment. I tried two hacks^H^H^H^Htests to check this: 1. Added \forceMPTEXgraphictrue right after \starttext, and then the figure came out fine. Not sure whether this method will work if there is more than one figure (\ifforceMPTEXgraphic might get reset to false after each figure). 2. Added an explicit \textext{} in the figure: \startMPcode label(\textext{jj},(1in,1in)); yy; \stopMPcode and the yy produces the right text. Though I still don't know why the staticMPfigure doesn't need either hack. -Sanjoy

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metafun: verbatimtex coming too late?
by Sanjoy Mahajan 24 Sep '06

24 Sep '06

In this file, I intended that all labels would come out in 7pt: =========================== cut here ============================ \starttext \startMPenvironment \setupbodyfont[7pt] \stopMPenvironment \startMPinclusions def drawtext = label(btex In drawtext() macro. etex, origin); enddef; \stopMPinclusions \startstaticMPfigure{fig} drawtext; label(btex Inline in the figure. etex, (2in,0)); \stopstaticMPfigure hello, in 12pt, for comparison. \placefigure[force,none]{}{\usestaticMPfigure[fig]} \stoptext =========================== cut here ============================ However, only the label that is directly in the figure ("Inline in the figure.") comes out in 7pt. The other one, produced by the drawtext macro, comes out in 12pt. The resulting metapost file is file-fig.mp and the key portions are (with spacing adjusted a bit): def drawtext = label(btex In drawtext() macro. etex, origin); enddef; beginfig(1); verbatimtex \global \loadfontfileoncetrue \setupbodyfont [7pt] etex; drawtext; label(btex Inline in the figure. etex, (2in,0)); endfig; The verbatimtex..etex block inside the beginfig..endfig doesn't affect the btex..etex in the drawtext macro, I guess because drawtext is defined outside of the beginfig..endfig. This is all with context 2006.08.08. I tested it on the live context, but the transcript says "figure texweb-fig.pdf can not be found". A possible solution is to put the verbatimtex at the beginning of the mp file or after the input mp-grph, making it like this: verbatimtex \global \loadfontfileoncetrue \setupbodyfont [7pt] etex; def drawtext = label(btex In drawtext() macro. etex, origin); enddef; beginfig(1); drawtext; label(btex Inline in the figure. etex, (2in,0)); endfig; but does that break other assumptions? Another solution is textext instead of btex..etex, though I don't understand the differences between the two. The main one: textext expands the tex commands in its argument whereas btex..etex does not. But in regular metapost btex..etex does expand, so I'm confused a bit. For example, you can do "mpost file.mp" with file.mp being verbatimtex \def\M{{\rm M}} etex beginfig(1) label (btex mass $\M$ etex, origin); endfig; end -Sanjoy

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displayed formula confuses parshape around figure
by Sanjoy Mahajan 24 Sep '06

24 Sep '06

In the following small example, two squares are cut out of the long paragraph. The first is where the external figure belongs and goes, so no problem with that. But the second removed square is after the displayed equation, and it shouldn't be removed. If I comment out the formula, then the paragraph shape is fine. If I make add a \placeformula before the \startformula, then the equation number goes where it should (below the right edge of the figure), but the area below it is still whitespace. Is it a bug or is there an option to make startformula not interfere with the paragraph shape calculation? I'm using context version: 2006.08.08 21:51, and I found the same problem just now on the live ConTeXt. \starttext \placefigure[right,none]{}{\externalfigure[dummy]} \input tufte \startformula A = a^\alpha b^\beta, \stopformula \input tufte \input tufte \stoptext -Sanjoy

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trouble with \startMPinclusions[+]
by Sanjoy Mahajan 24 Sep '06

24 Sep '06

The small test file below uses \startMPinclusions[+], but it produces "TeX capacity exceeded" from what looks like an endless loop. The error msgs are below the file. This is with context 2006.08.08 21:51, and the live ConTeXt (2006.09.17) gives the same error. [I was trying to test whether I could replicate my standalong metapost programming style within metafun. I often have: u := 1cm; % a couple figures using this u:=1cm unit size; beginfig(1) fill ... endfig; etc. % now a few figures with a different unit size u := 1.5cm; beginfig(10) fill ... endfig; ... So I wanted to see whether I could use \startMPinclusions[+] midway through the source file, in between several \start(stop)reusableMPgraphic blocks, to change u between figures. But the error msgs intervened. Anyway, here's the file. The currentcolor(def) in the error msgs makes me wonder whether it's related to the new code to make there be a fixed current color before each figure?] =================== cut here ================= \starttext \startreusableMPgraphic{a} fill fullcircle scaled 1cm; \stopreusableMPgraphic \placefigure[force,none]{}{\reuseMPgraphic{a}} hello % instead, just \startMPinclusions works (i.e. without the [+]) \startMPinclusions[+] \stopMPinclusions \startreusableMPgraphic{b} fill fullcircle scaled 1cm; \stopreusableMPgraphic \placefigure[force,none]{}{\reuseMPgraphic{b}} hello2 \stoptext =================== cut here ================= And a piece of the log: floatblocks : order disturbed floatblocks : 1 placed color : currentcolor (def) is not defined ! TeX capacity exceeded, sorry [input stack size=1500]. \theMPinclusions ->\theMPinclusions \writeMPgraphic { } \theMPinclusions ->\theMPinclusions \writeMPgraphic { } \theMPinclusions ->\theMPinclusions \writeMPgraphic { } \theMPinclusions ->\theMPinclusions \writeMPgraphic { } \theMPinclusions ->\theMPinclusions \writeMPgraphic { } \theMPinclusions ->\theMPinclusions \writeMPgraphic { } ... l.19 ...cefigure[force,none]{}{\reuseMPgraphic{b}} If you really absolutely need more capacity, you can ask a wizard to enlarge me.

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flow charts
by r.ermers＠hccnet.nl 23 Sep '06

23 Sep '06

Dear Friends, I am trying to generate a simple flow chart. Does anybody have a complete working sample file, as simple as possible, that I could use as a starting point? Thanks in advance. Robert

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FLOWcharts
by Adam Duck 21 Sep '06

21 Sep '06

Hello list, I have some FLOWcharts in my presentation; due to the RawSteps module, they get rendered too many times pointlessly. Is it possible to "prerender" a FLOWchart -- or any other part of a text -- and reuse it later? \startbuffer \stopbuffer doesn't do this. cu, Adam.

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ConTeXt submissions to arxiv.org
by Sanjoy Mahajan 20 Sep '06

20 Sep '06

I'd asked arxiv.org, the wonderful open-access preprint server used in most fields of physics, which accepts most varieties of TeX in source form (and non-TeX formats in PDF): Are there plans for arxiv to support ConTeXt submissions? One could try a PDF-only submission, but it will probably be rejected as coming from TeX (for which arxiv wants the source)? For almost 20 years I've used plain TeX but got weary doing a lot of page layout by hand, so decided to skip over LaTeX to ConTeXt. With their permission, I include their response. So, encourage your colleagues! Date: Tue, 19 Sep 2006 11:36:27 -0400 From: "Angela Zoss [www-admin]" <www-admin(a)arxiv.org> To: Sanjoy Mahajan <sanjoy(a)mrao.cam.ac.uk> Subject: Re: ConTeXt submissions At this time we have not had enough requests for support for ConTeXt to warrant implementing this feature on our system. If it is too complicated to convert your ConTeXt submissions to TeX, please submit the PDF and make note of this email exchange. Thank you. - -- arXiv admin

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Re: [NTG-context] Help with mswincontext installation
by Thomas A. Schmitz 20 Sep '06

20 Sep '06

> @Thomas > > I could not find a dimension for tfm words in my texmf.cnf file. > Perhaps an entry only in the linux version ? > > It seems that you have a point, since if I use another font > family, things run smoothly. > > When you're using linux again, could you see please > what the entry looks like? > > Greetings > > Marcus, I rebooted into my linux system, and it is indeed a variable called font_mem_size. Here is the setting in my texmf.cnf: % Words of font info for TeX (total size of all TFM files, approximately). font_mem_size = 2500000 (it was 500000 before I changed the value). Sorry I can't be of more help, but I know nothing about windoze. Thomas

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beta
by Wolfgang Werners-Lucchini 20 Sep '06

20 Sep '06

Hallo! Some beta's back, the following was working. -------------------------- \startMPrun \input test.mp \stopMPrun \starttext \externalfigure[test.1][width=15mm] \stoptext -------------------------- with ----------test.mp--------- beginfig(1) draw (0,0) -- (1cm,1cm); endfig; end -------------------------- Now, I get the error (figures : figure test.1 can not be found) with ConTeXt ver: 2006.09.17 Wolfgang

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