April 2020 - ntg-context - NTG Mailing Lists

METAPOST: How do I get this 'max' cutafter to work?
by Gerben Wierda 22 Apr '20

22 Apr '20

I have these two paths, but cutting doesn’t work because the path to be cut takes the wrong intersection regardless of how I direct the path to be cut after (reverse or not). The path to cut after is a triangle with the base horizontal and the path to cut is a vertical line. The top of the triangle is the endpoint of the line and is selected as intersection by cutafter. This happens also if I reverse the triangle path, strangely enough. I have an alternative cutting algorithm, but that cuts as long as the length of cuttings is not 0, which is the case at the top too, so it won’t cut further. I need a reliable algorithm to make a ‘maximum cutafter’. What might be a good approach? G path arrowHead; arrowHead := (542,-77.000186920166016)..controls (545.33333333333337,-77.000186920166016) and (548.66666666666663,-77.000186920166016) ..(552,-77.000186920166016)..controls (550.33333333333337,-73.666853586832687) and (548.66666666666663,-70.333520253499344) ..(547,-67.000186920166016)..controls (545.33333333333337,-70.333520253499344) and (543.66666666666663,-73.666853586832687) ..cycle; path connection; connection := (420.00004959106445,-367)..controls (420.66670256708773,-367) and (421.333355543111,-367) ..(422.00000851913427,-367)..controls (425.33333917170194,-367) and (428.6666698242696,-367) ..(432.00000047683727,-367)..controls (442.00000015894574,-367) and (451.99999984105426,-367) ..(461.99999952316273,-367)..controls (464.76142345324098,-367) and (467,-364.76142382108867) ..(467,-361.99999997656772)..controls (467,-293.99999999218926) and (467,-226.00000000781074) ..(467,-158.00000002343228)..controls (467,-155.23857623850762) and (469.23857634039018,-153) ..(472.00000014901161,-153)..controls (495.33333338300389,-153) and (518.66666661699617,-153) ..(541.99999985098839,-153)..controls (544.76142368504975,-153) and (547,-150.76142367339932) ..(547,-147.99999983662815)..controls (547,-125.99999994554271) and (547,-104.00000005445727) ..(547,-82.000000163371837)..controls (547,-78.666668047283764) and (547,-75.333335931195691) ..(547,-72.000003815107618)..controls (547,-70.333398183460417) and (547,-68.666792551813217) ..(547,-67.000186920166016); show connection cutafter arrowHead; show connection cutafter (reverse arrowHead);

4 6

accessing prd file from component file
by Alan Bowen 22 Apr '20

22 Apr '20

When my component files were in the same directory as my component files, the line %! TeX root = prd_whatever allowed processing the component file from the component file. (I use TeXShop for this.) The project structure has been changed: the component files are in a subdirectory of the directory that has the prd file. Now, %! TeX root = prd_whatever no longer works. (E.g., it cannot find the environment files called in the prd file.) Is there a way to restore processing from the component file. My experiments are near to wearing out the “error” message/page. Alan

2 1

balance=yes eats up footnote in one-line column
by Joey McCollum 22 Apr '20

22 Apr '20

I noticed some unexpected behavior while putting together a minimal working example for a different issue. In a multi-column layout with column balancing turned on, if the first column contains a single line and that line contains a footnote, then the footnote will not be typeset. A minimal example demonstrating this follows: \starttext \startcolumns[n=2] A single line of text with balancing.\footnote{Footnote dropped in column balancing.} \stopcolumns \stoptext I typeset this using ConTeXt version 2020.03.10 (from the TeXLive 2020 distribution). Clearly, the situation I described is an exceptional one, but it could happen in some real cases (e.g., if the last page of a two-column text consists of a widowed line with a footnote), and in any event, this seems like unintended behavior, so I thought I should bring it to the mailing list's attention.

1 0

TOC- removing Contents 0
by jbf 22 Apr '20

22 Apr '20

A simple question, but I have not found an answer to it as yet: \completecontent does everything it is supposed to, including providing the title 'Contents' on the ToC page, but it also gives me as the first line in the ToC: Contents 0 In fact the ToC appears on page 1, but regardless of the page it is appearing on, is there a way I can prevent that line from being produced as part of the ToC? I assume it would be something I need to do in the following setup: \setupcombinedlist [content] [list={chapter,section,title,subject,subsection}] \setuplist[chapter][style=normal,alternative=b, before=] Grateful for any help with this, Julian

3 2

Re: [NTG-context] animation using \startuseMPgraphic
by Jeong Dal 21 Apr '20

21 Apr '20

Dear Hans, Of course, it runs so fast that it is meaningless to shorten the runtime. It is my old habit to check the algorithmic efficiency. It is just my interest. Thank you for your concern. Best regards, Dalyoung

2 2

conditional not working in \setuphead
by Pablo Rodriguez 20 Apr '20

20 Apr '20

Dear list, I have the following sample: \startbuffer[demo] <doc> <section id="section-i1"> <text>first</text> </section> <section id="section-i2"> <text>second</text> </section> </doc> \stopbuffer \startxmlsetups xml:initialize \xmlsetsetup{#1}{doc|section}{xml:*} \stopxmlsetups \xmlregistersetup{xml:initialize} \startxmlsetups xml:doc \xmlflush{#1} \stopxmlsetups \startxmlsetups xml:section \startsection[title={\xmlatt{#1}{id}}, beforesection={\doif{\xmlatt{#1}{id}}{\selectedtopic} {conditional}}] \xmlflush{#1} \doif{\xmlatt{#1}{id}}{\selectedtopic}{conditional} \stopsection \stopxmlsetups \def\selectedtopic{section-i1} \starttext \xmlprocessbuffer{main}{demo}{} \stoptext How can I make the conditional in the beforesection option work? Many thanks for your help, Pablo -- http://www.ousia.tk

2 2

Passing the parameters of a frame in an environment \startMPcode ... \stopMPcode
by Fabrice Couvreur 20 Apr '20

20 Apr '20

Hi, I try to reproduce the figure as faithfully as possible. I tried for the rounded corners to put the key corner = round, but it does not work. Thanks for your help. Fabrice \usecolors[xwi] \definecolor [prune] [r=1.29,g=.20,b=.83] \starttext \setupframed[frameletter][corner=round,align=normal] \startMPcode draw outlinetext.f ("\framed[frameletter]{A}") (withcolor darkred withpen pencircle scaled 1/10) rotated 5 xsized 2cm ; draw outlinetext.f ("\framed[frameletter]{L}") (withcolor green withpen pencircle scaled 1/10) rotated -5 xsized 2cm shifted (2cm,0); draw outlinetext.f ("\framed[frameletter]{E}") (withcolor \MPcolor{blueviolet} withpen pencircle scaled 1/10) rotated 5 xsized 2cm shifted (4.5cm,0); draw outlinetext.f ("\framed[frameletter]{A}") (withcolor \MPcolor{prune} withpen pencircle scaled 1/10) rotated -5 xsized 2cm shifted (6.5cm,0); \stopMPcode \stoptext

3 5

animation using \startuseMPgraphic
by Jeong Dal 20 Apr '20

20 Apr '20

Dear all, I am trying to make an animation using the animation module. But it draws 10 figures instead of creating animation. Is there anything I have to do more? Or, is there a better way to do this? Thank you for reading. Best regards, Dalyoung \startuseMPgraphic{inversionPoint}{n} vardef findPointD(expr C, Q, r) = numeric dist, ang; pair X, Y; dist := r**2/sqrt((xpart Q - xpart C)**2 + (ypart Q - ypart C)**2); ang := angle(Q - C); Y := C + dir(ang)*dist; Y enddef; numeric radius, now, move; pair A,B,C,P,Q; path p,q; radius := 2cm; C := origin; p := fullcircle scaled (2*radius); z[1] = point 6 of p; z[2] = point .8 of p; q := (1.5*z1 - .5*z2) -- (-.5z1 + 1.5*z2); %q := fullcircle scaled radius shifted (2cm, 1cm); draw p; draw q; %for i := 0 step 0.1 until 1: move := 0.1; now := move*\MPvar{n}; P := point now along q; Q := findPointD(C, P, radius); drawdot P; drawdot Q withcolor .625red; dotlabel.lft(textext("P"),P); dotlabel.rt(textext("Q"),Q) withcolor .625red; %endfor; \stopuseMPgraphic \usemodule[animation] \setupinteraction[state=start] \starttext %\startplacefigure[] \startanimation[menu=yes] \dorecurse{10}{ \useMPgraphic{inversionPoint}{n=\recurselevel} } \stopanimation %\stopplacefigure \stoptext

4 6

Cannot build plain format
by Henri Menke 19 Apr '20

19 Apr '20

Dear list, I'm trying to build the plain format but it fails with $ mtxrun --script plain --make [...] ! I can't find file `luatex-plain.tex'. but mtxrun can find the file. $ mtxrun --find-file "luatex-plain.tex" /opt/context/tex/texmf-context/tex/generic/context/luatex/luatex-plain.tex What am I doing wrong? Also another question: Does LMTX come with a plain format? Cheers, Henri

3 5

Use a counter in a reference?
by Kevin Kenan 19 Apr '20

19 Apr '20

I have a need to tag elements in a text in a way that they are sequentially numbered and can have references to refer to them. Something like: Here is some \tag[tagref]{\bf text} that is tagged. . . . Refer to tag \tagnumber[tagref] on page \at[tagref]. What is the best way to do this in ConTeXt? I’ve got a counter for tag number, but I’m not sure how to use \reference so that it uses my tag number. For instance: \definecounter[myTagCounter] . . . \reference[tagref]{\rawcountervalue[myTagCounter]} Doesn’t work. But perhaps I’m going about this incorrectly? Thanks in advance! -kk

2 2