- ntg-context - NTG Mailing Lists

Re: [NTG-context] MetaPost Animations
by Jeong Dal 01 Jan '13

01 Jan '13

Dear Wolfgang, Thank you for the explanation, and your sample works nicely. I enclosed \processMPbuffer using \startframe and \stopframe as following. Then I got a 'undefined control sequence' error. If I use '\framed[]' instead of '\startframe … \stopframe', then it gave all 7 circles of different radius in two pages without error. If I add "\startanimation … \stopanimation", the only change is the appearance of menu at the bottom of the last circle.(no animation) What is wrong in the code? Best regards, Dalyoung Happy New Year to all listers!!! %%%%%%%%%%%% \startbuffer[circles] path p; numeric n, u; u := 1cm; n:=\recurselevel*u; p := fullcircle scaled n; draw p; \stopbuffer \usemodule[animation] \setupinteraction[state=start] \starttext %\startanimation[menu=yes] \dorecurse{7}{ \startframe % \framed[]%{\processMPbuffer[circles]}} \processMPbuffer[circles] \stopframe } %\stopanimation \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%% ! Undefined control sequence. system > tex > error on line 23 in file test-ani.tex: Undefined control sequence ... 13 \setupinteraction[state=start] 14 15 \starttext 16 17 %\startanimation[menu=yes] 18 \dorecurse{7}{ 19 \startframe 20 % \framed[]%{\processMPbuffer[circles]}} 21 \processMPbuffer[circles] 22 \stopframe 23 >> } 24 %\stopanimation 25 26 \stoptext 27 \12>>1 #1#2-> \startframe \processMPbuffer [circles] \stopframe \syst_helpers_recurse_indeed_yes ...curse_content \syst_helpers_recurse_indeed <to be read again> { <inserted text> 2 \syst_helpers_recurse_indeed ...the \innerrecurse }{#2} l.23 }

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Percent in mkii mathmode is rendering wrongly using lucida.
by Yue Wang 01 Jan '13

01 Jan '13

Hi Hans, can you fix the problem? thanks a lot. test document: %mkii \usetypescript[lucida][texnansi] \setupbodyfont[lucida,12pt] \starttext 5\% $5\%$ \stoptext Yue

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Re: [NTG-context] MetaPost Animations
by Jeong Dal 30 Dec '12

30 Dec '12

Dear Troy, The animations are impressive and thank you for sharing the code. In the creation of many pdf for animation, it changes the recurselevel only. I wonder if there is a way to make such kind of animation in ConTeXt using Wolfgang's animation module. Then we can include the animation in PDF output directly. Here is my trial. I modified it as following and got an animation. But it is only good for a few step animation. %%%%%%%%% \startbuffer[base] N:=64;%\N; u:=136; pair f; c:=2/(1+sqrt(5));%\c; if c<1: f:=(1+-+c,0); v:=u/2; else: f:=(0,1+-+(1/c)); v:=u/c/2; fi; % Focus f is defined path p,q; pair z; picture base; numeric L; p:=fullcircle yscaled c; % This is the ellipse L:=length p; draw p scaled (2*v) withpen pencircle scaled (v/260) dashed evenly; % Draw the ellipse dashed (will be traced later) base:= currentpicture; q:=bbox currentpicture enlarged (v/64); % Enlarge the bounding box slightly q:=(llcorner q+(-v/128,-v/128))--(lrcorner q+(v/128,-v/128))--(urcorner q+(v/128,v/128))--(urcorner q+(-v/128,v/128))--cycle; fill fullcircle scaled (v/32) shifted (f*v) withcolor red; % Focus fill fullcircle scaled (v/32) shifted (-f*v) withcolor red; % Focus base:=currentpicture; % Save this picture to draw in every frame setbounds currentpicture to q; % Set the bounding box as described before \stopbuffer \startbuffer[fig1] % \startMPpage n:=1;%\recurselevel%1; draw base; % Draw the common picture saved above draw subpath (0,(n-1)/(N-1)*L) of p scaled (2*v) withpen pencircle scaled (v/130) withcolor blue; % Trace the ellipse in blue z:=point ((n-1)/(N-1)*L) of p scaled v; % The point on the ellipse where we are thusfar fill fullcircle scaled (v/32) shifted (2*z) withcolor blue; % Draw the point draw (-f*v)--(2*z)--(f*v) withpen pencircle scaled (v/260); % Draw the string used to trace the ellipse setbounds currentpicture to q; % Set the bounding box so that it is the same for each frame % \stopMPpage \stopbuffer \startbuffer[fig2] % \startMPpage n:=2; draw base; % Draw the common picture saved above draw subpath (0,(n-1)/(N-1)*L) of p scaled (2*v) withpen pencircle scaled (v/130) withcolor blue; % Trace the ellipse in blue z:=point ((n-1)/(N-1)*L) of p scaled v; % The point on the ellipse where we are thusfar fill fullcircle scaled (v/32) shifted (2*z) withcolor blue; % Draw the point draw (-f*v)--(2*z)--(f*v) withpen pencircle scaled (v/260); % Draw the string used to trace the ellipse setbounds currentpicture to q; % Set the bounding box so that it is the same for each frame % \stopMPpage \stopbuffer \startbuffer[fig3] % \startMPpage n:=3; draw base; % Draw the common picture saved above draw subpath (0,(n-1)/(N-1)*L) of p scaled (2*v) withpen pencircle scaled (v/130) withcolor blue; % Trace the ellipse in blue z:=point ((n-1)/(N-1)*L) of p scaled v; % The point on the ellipse where we are thusfar fill fullcircle scaled (v/32) shifted (2*z) withcolor blue; % Draw the point draw (-f*v)--(2*z)--(f*v) withpen pencircle scaled (v/260); % Draw the string used to trace the ellipse setbounds currentpicture to q; % Set the bounding box so that it is the same for each frame % \stopMPpage \stopbuffer \setupinteraction[state=start] \usemodule[animation] \starttext \startanimation[menu=yes] {\processMPbuffer[base, fig1]} {\processMPbuffer[base, fig2]} {\processMPbuffer[base, fig3]} \stopanimation \stoptext %%%%%%%%%%%%% I also tried to simplify the code as following, but it just draw 10 figures not an animation. Is there a way to combine them as an animation? Thank you. Best regards, Dalyoung %%%%%%%%%%%%%%%%%%%%%%%%% \startbuffer[base] N:=64;%\N; u:=136; pair f; c:=2/(1+sqrt(5));%\c; if c<1: f:=(1+-+c,0); v:=u/2; else: f:=(0,1+-+(1/c)); v:=u/c/2; fi; % Focus f is defined path p,q; pair z; picture base; numeric L; p:=fullcircle yscaled c; % This is the ellipse L:=length p; draw p scaled (2*v) withpen pencircle scaled (v/260) dashed evenly; % Draw the ellipse dashed (will be traced later) base:= currentpicture; q:=bbox currentpicture enlarged (v/64); % Enlarge the bounding box slightly q:=(llcorner q+(-v/128,-v/128))--(lrcorner q+(v/128,-v/128))--(urcorner q+(v/128,v/128))--(urcorner q+(-v/128,v/128))--cycle; fill fullcircle scaled (v/32) shifted (f*v) withcolor red; % Focus fill fullcircle scaled (v/32) shifted (-f*v) withcolor red; % Focus base:=currentpicture; % Save this picture to draw in every frame setbounds currentpicture to q; % Set the bounding box as described before \stopbuffer \startbuffer[fig1] % \startMPpage n:=\recurselevel; draw base; % Draw the common picture saved above draw subpath (0,(n-1)/(N-1)*L) of p scaled (2*v) withpen pencircle scaled (v/130) withcolor blue; % Trace the ellipse in blue z:=point ((n-1)/(N-1)*L) of p scaled v; % The point on the ellipse where we are thusfar fill fullcircle scaled (v/32) shifted (2*z) withcolor blue; % Draw the point draw (-f*v)--(2*z)--(f*v) withpen pencircle scaled (v/260); % Draw the string used to trace the ellipse setbounds currentpicture to q; % Set the bounding box so that it is the same for each frame % \stopMPpage \stopbuffer \setupinteraction[state=start] \usemodule[animation] \starttext \startanimation[menu=yes] \dorecurse{10}{ {\processMPbuffer[base, fig1]}} %{\processMPbuffer[base, fig2]} %{\processMPbuffer[base, fig3]} \stopanimation \stoptext %%%%%%%

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MetaPost Animations
by Troy Henderson 29 Dec '12

29 Dec '12

I've created several animations using MetaPost/ConTeXt, and I have also created a webpage with these animations. The URL to the page is http://www.tlhiv.org/animations/ Feedback is appreciated, and if there is a particular animation that you would like to see included, let me know and I will attempt to code them up in MetaPost, provide the source code, and include them on the webpage. Troy Henderson

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XeTeX, ConTeXt and font/filename quote char
by Khaled Hosny 29 Dec '12

29 Dec '12

Hi all, Some people have been complaining that it is not possible to use XeTeX with filenames containing parenthesis because XeTeX treats it as filename quote char and this it gets stripped. Anyway, after some searching it turned out this was added in 2004 for ConTeXt to workaround some MetaPost quotation issue[1]. Now I'm not sure if this is still needed/used by ConTeXt and was wondering if it can be dropped now? Regards, Khaled [1] http://tug.org/pipermail/xetex/2004-October/001215.html

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References_to_footnotes in index
by Robert Blackstone 27 Dec '12

27 Dec '12

Dear List, The book that I am working on has an index of authors. On some pages of the book an author's name only occurs in a footnote. Is it possible in ConTeXt to mark, in the index, those occurrences in footnotes so that in these cases not only the page number appears in the index but also, preferably as superscript, the footnote number on that page? As for example Arnold, Franck Th. 9, 283 indicating footnote 3 on page 28 (Sorry, I cannot make a superscript in this mail editor) What I certainly don't want is separate index entries for those authors. Each author name should occur in the index only once. Thanks in advance of any help. Best regards, Robert Blackstone

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\overbar setups
by Idris Samawi Hamid ادريس سماوي حامد 27 Dec '12

27 Dec '12

Dear gang, First: Here's wishing you all the most happy holidays and an early happy new years. ============= ConTeXt ver: 2012.08.14 10:44 MKIV \starttext \overbar{test} \setupbars[color=green,offset=7] \overbar{test} \setupbars[color=red,dy=7] \overbar{test} \stoptext ============= offset and dy don't seem to do anything. Also, I don't know the difference between the two params... Please advise. Best wishes to all! Idris -- Professor Idris Samawi Hamid Department of Philosophy Colorado State University Fort Collins, CO 80523

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Natural Tables in multiple columns
by Jannik Voges 25 Dec '12

25 Dec '12

Hello ConTeXt-Users, I get a strange behavior (latest beta), when I try to typeset natural tables and normal text in multiple columns. When I type normal text into a column and add a natural table which total length is small enough to fit into the column, the table is placed into the column with the text. When the total length is too large, the table starts in the next column and leaves the rest of the column empty (of course I used split=yes). I would expect that the table starts in the column with the text and is split properly. Minimal example: small table \starttext \startcolumns[n=3] \dorecurse{10}{Test\crlf} \bTABLE[split=yes] \dorecurse{10} {\bTR \bTD a\eTD \bTD b \eTD \eTR} \eTABLE \stopcolumns \stoptext large table \starttext \startcolumns[n=3] \dorecurse{10}{Test\crlf} \bTABLE[split=yes] \dorecurse{20} {\bTR \bTD a\eTD \bTD b \eTD \eTR} \eTABLE \stopcolumns \stoptext

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to pass an argument in a macro
by Roland Thiers 25 Dec '12

25 Dec '12

Bonjour, I am new in ConTeXt. I love its features. I need some (or a lot of) help. I tried to get a macro which compute some values for a math function. With help from the wiki ConTeXt Garden and some time I could do that - write my function userdata.f - write another function to put the values in a table : userdata.tabf - put both of them in a file "/Users/rolandt/context/mesfonctionsluatex.lua" - In a file.tex, I use that macro : \def\tabf#1#2% {\startluacode dofile("/Users/rolandt/context/mesfonctionsluatex.lua") userdata.tabf(#1,#2) \stopluacode} Here are the functions: -- fonction cube -- on utilise l'espace de nom userdata userdata=userdata or {} function userdata.f(x) context(x*x*x) end -- fonction tabf -- which makes a table , compute 6 values, b=first x, c = step userdata=userdata or {} function userdata.tabf(b,c) context.starttable{"*{7}{|l}|"} local b=b local c=c context("\\HL") context("\\VL x ") for i=1,6 do context("\\NC" .. b+(i-1)*c) end context("\\VL".."\\AR") context("\\HL") context("\\VL f(x) ") for i=1,6 do context("\\NC") context(userdata.f(b+(i-1)*c)) end context("\\VL".."\\LR") context("\\HL") context.stoptable() end I am sure it could be much better but it works ! Evidently I need a third argument to be able to choose how many values compute. I failed completely (I don't understand how arguments are passed). I tried things like : context.starttable{"*{%s}{|l}|",a} but ... fatal error :) I would appreciate some help or what to read to improve understanding that kind of things. Best regards, Roland

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Help with installation
by Michal Kvasnička 25 Dec '12

25 Dec '12

Hallo. I'm sorry to bother you this time but I would really apprecitate your help. I've installed Ubuntu 12.10 64 bit on a new disk. I downloaded the last stable version of ConTeXt suite (today). The installation was all right. However, when I run texexec (e.g. texexec --help), I get the following error: /programy/context/tex/texmf-linux-64/bin/mtxrun:15228: attempt to index field 'loaders' (a nil value) The same happens with context (e.g. context --help). Can you tell me what to do? I guess I simply need to install some libraries. This is the first time I've tried 64 bit Ubuntu. Best wishes Michal

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