- ntg-context - Mailing Lists

Re: [NTG-context] Metapost/Metafun Q: using variables and "building blocks"?
by Mari Voipio 08 May '12

08 May '12

On Sun, May 6, 2012 at 4:52 PM, Hans Hagen <pragma(a)wxs.nl> wrote: > You have seen this one, haven't you? Posted by Don Knuth: > > http://www.youtube.com/watch?v=YVuggGxeBVk > > So that's your next challenge. Yes, I've seen it, had to watch the whole thing, it is so fascinating. If I ever decide to invest in such a machine, it'll be an expensive one that allows me to digitize my own graphics (not just ready-made sets), preferably as vectors. In which case doing *that* isn't so much of a challenge any more. I've coveted one of those for a while, but currently cannot justifty getting one, neither for fun nor for my tiny craft business as that one is concentrated on the pre-steam era. However, I'm planning to use MetaPost to create blackwork charts, I've got the feeling that it'll give me neater results than any existing software. And I won't be stuck with one OS, either. :-) Mari

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Re: [NTG-context] References to floats
by Robert Blackstone 07 May '12

07 May '12

On Mon, May 7, 2012 at 12:00 PM, Hans Hagen <pragma(a)wxs.nl> wrote > > On 6-5-2012 23:18, Robert Blackstone wrote: >> Sometimes however the example is placed at the same page as the text discussing it. >> Is there any trick to adapt the reference to this situation, so that, instead of saying, for instance, "ex. 3.4 on page 12", it just says "ex. 3.4", or "ex. 3.4 below" or even "ex. 3.4 on this page"? >> > > you can try \atpage[ref] > Thank you, Hans, for your quick reply. Unfortunately it does not help me. The result is basically the same as when I write "on \at{page}[ref]", except that, instead of "on page 20", I get "at page 20", (with the float sitting on page 20). Frankly, I'm rather surprised that this wish of mine seems not to have come up before. Kind regards, Robert

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context to markdown/html
by Idris Samawi Hamid ادريس سماوي حامد 07 May '12

07 May '12

Dear gang, I have a paper done in ConTeXt that I would like to put online. I _could_ manually convert my input to markdown, but I was wondering if the xml/xhtml export options could be used to accomplish the same thing. Although I have done a lot of doc-to-context conversions via pandoc (doc->odt->markdown->context) I have never needed to go the other way till now. What would you guys suggest? Is there a way to convert context's xml/xhtml to markdown? (Note that I know little about html, css etc). One thing (bug?) I have noticed: bibliographic info gets lost in the backend export, so I end up with a lot of Xxxxxxxx (0000) etc in the output. Isn't there a tmp file the export backend can access to pick up this info? Any advice appreciated and Best wishes Idris

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multitone color problem
by Peter Rolf 07 May '12

07 May '12

Hi, just playing around with spot colors and run into this problem. tested with 23.04.2012 and ??.11.2011, same result. the color definition leads to an invalid pdf. % multitone.tex---- \nopdfcompression \setuppagenumber[state=stop] \definemultitonecolor[combicolor] [blue=.12,yellow=.28] [c=.1,m=.1,y=.3,k=.1] \starttext \null \stoptext %------------------ I also attached the original example (spot.tex). Best wishes, Peter

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Complexeslide module
by Romain Diss 07 May '12

07 May '12

Hi all, In some of the lasts Aditya's posts, one can understand that some work is already done on a new module: complexeslide. Is there any information about this new module: goal (beamer like?), actual state, roadmap... Thanks. -- Romain Diss <romain.diss(a)yahoo.fr>

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\systemparameter{n}
by Peter Rolf 07 May '12

07 May '12

Hi, the system parameter 'n' is not properly set on the third run. % test.tex \starttext \ifnum\systemparameter{n}=1\relax \ctxlua{print("*** 1st run")}\fi \ifnum\systemparameter{n}=2\relax \ctxlua{print("*** 2nd run")}\fi \ifnum\systemparameter{n}=3\relax \ctxlua{print("*** 3rd run")}\fi \stoptext % ------------ A fresh run (three runs) gives *** 1st run *** 2nd run *** 2nd run Peter

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References to floats.
by Robert Blackstone 07 May '12

07 May '12

Dear list, Presently I am working on a book that contains many musical examples, some of them rather large (even page-filling). It is difficult to predict where they will finally be placed, at least when I do not want to spoil the layout too much by forcing every example to be placed at the point where it occurs in the .tex-file. So when dicussing an example I always refer to it with \in{ex.}{ref} and \at{page}[ref]. Sometimes however the example is placed at the same page as the text discussing it. Is there any trick to adapt the reference to this situation, so that, instead of saying, for instance, "ex. 3.4 on page 12", it just says "ex. 3.4", or "ex. 3.4 below" or even "ex. 3.4 on this page"? (One imagines that in the last stage of typesetting the file ConTeXt "knows" that the reference and the referenced float will be on the same page, but I have no clue how I could use this knowledge.) Thanks in advance for any help. Robert Blackstone

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Before I re-invent the wheel
by Bill Meahan 07 May '12

07 May '12

Before I re-invent the wheel and write my own, has anybody written Mk IV-compatible typescripts for the Venturis ADF/VenturisSans ADF typefaces they wish to make available? -- Bill Meahan K8QN Cat: n; A purr-bearing mammal

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missing pagebreak using vim-module for typing
by Xenia 07 May '12

07 May '12

Dear context folks, since Aditya recommended I am using the vim module for including MATLAB-files in my TeX-files. But for longer code snippets there is no pagebreak, so that the code is cuttet at the end of the page. What do I have to do? current version: 2012.04.19 23:18 Thanks, Xenia

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Metapost/Metafun Q: using variables and "building blocks"?
by Mari Voipio 06 May '12

06 May '12

Hello all, any graphic experts around who can bump me past a stupid hinder on my way to understanding MPgraphics? I'm trying to create a system of describing certain type of braiding patterns (fingerloop braiding), based on what has been used in the field before me - but they did it all manually either by pen or computer, and I just do not fancy doing 40+ patterns by hand in Inkscape, especially as my pattern recipe book keeps expanding and I'm planning on that, too. I think Metapost could be the solution, because I need simple shapes and sometimes complicated but well-regulated paths/arrows to go between them; I'm just being a clueless newbie, too much in the WYSIWYG vector graphics mode to really know what to do. Mostly with the examples in the Metafun manual I've managed to get as far as to my basic building block, two circles joined by a curve: \startMPpage path p, q, r ; p := fullcircle scaled 8mm ; q := p shifted (0cm,24mm) ; r := center p .. (12mm,12mm) .. center q ; pair pr, qr ; pr := p intersectionpoint r ; qr := q intersectionpoint r ; r := r cutbefore pr cutafter qr ; r := r cutends 0.2mm ; draw r withpen pencircle scaled 0.2mm withcolor black ; draw p withpen pencircle scaled 0.2mm withcolor black ; fill p withcolor white; draw q withpen pencircle scaled 0.2mm withcolor black ; fill q withcolor black; \stopMPpage However, I don't seem to be able to find the answers to the next questions: a) I need to be able to stack four of these on top of each other and then four mirrored ones next to them (all-in-all a 2 x 4 grid/block), and probably a 1-block space between the two columns. I realize I can do that with "shift", but should I make my single 'building block' a group, a buffer or overlay or something else? Keeping in mind that I will have to be able to draw a path/arrow on top, so I need to know where they are. (At some point I need to expand to more columns, but the number of rows is still 4 as we have humans have just four aligned fingers per hand - thumbs aren't counted - but one can add hands i.e. people to work wider braids.) b) The circles p and q can be filled with the same colour or two different colours, and each of the blocks in a pattern can have different fill colour (e.g. two totally black, two totally white, two half-and-half with either black or white on top). The pen/outline colour should stay as black, which means that I can't implement the symbol example in the Metafun manual (the smiley that is totally switched from black to red). I don't mind having different blocks for monocoloured and bicoloured versions, but it would be nice to be able to say something like \usesloop[lh,blue] for 'take a single-coloured left-hand loop in blue' instead of having to dig deeper into the MP code every time. I assume the answer is "use variables", but how? I used millimeters here because it just feels more natural to me, that's what textile crafts does (when not based on inches like quilting and scrapbooking...). The measurements won't be shown anywhere - these are graphs or pictograms, not real pictures - so I can still switch to using something else. Besides, if the "building block" approach works, there isn't that much to be changed, get the first block right and the rest can be calculated from there. Any ideas on how I can achieve the ease that surely exists somewhere there? I'll take plain Metapost or a combination of Metapost and Metafun + ConTeXt as I'll use ConTeXt anyway to achieve multi-format output with a minimum of fuss. Help thankfully received, as always, Mari PS. Today's craft related metaphor: I feel just like I was staring at a messed up skein of yarn: I know that I'm now holding one of the ends, I thus can start to untangle the knot - and the more I pry loose, the less there's left to sort out. However, in the beginning the process tends to be very slow and awkward...

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