July 2021 - ntg-context - Mailing Lists

TrueType font styles suddenly not found anymore
by Gerben Wierda 23 Jul '21

23 Jul '21

My font setup is like this: \startmode[OPTIMANOVA] \definefontfamily [bookfont] [ss] [Optima nova LT Pro] [tf=style:Regular, bf=style:Medium, it=style:Italic, bi=style:Medium Italic] \setupbodyfont[bookfont,10pt] \stopmode \startmode[OPTIMA] \definefontfamily [bookfont] [ss] [Optima] [tf=style:Regular, bf=style:Bold, it=style:Italic, bi=style:Bold Italic] \setupbodyfont[bookfont,10pt] \stopmode Now, both worked earlier today. But I’ve lost the old Optima font somehow. If I now try —mode=OPTIMA I get: selectfont > the requested font 'Optima' has no files for the 'tf' alternative, Latin Modern is used instead. and the document is set in Latin Modern Sans Serif. Another OpenType Postscript font like Chaparral Pro works. Another TrueType like Century Gothic does not. I seem not to be able to load any TrueType font anymore. I recall there being some way to rebuild a font cache of LMTX ConTeXt but I can’t find the instructions. Can someone enlighten me? Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>) R&A Enterprise Architecture <https://ea.rna.nl/> (main site) Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/>

2 2

Math cases
by Jack Hill 23 Jul '21

23 Jul '21

Dear list, I'm using ConTeXt version 2021.07.22 19:16 and the following code typesets both columns in math mode \starttext \startformula \delta_{ij} = \startcases \NC 1 \NC if i = j \NR \NC 0 \NC otherwise \NR \stopcases \stopformula \stoptext The wiki states that the second column should be typeset in text mode. Is this a bug or does ConTeXt now typeset the second column in math mode by default? Thanks, Jack

2 2

MP boxes: boxjoin not recognized?
by Rudd, Kevin 23 Jul '21

23 Jul '21

Hi--- All of my figures that use MP boxes are now failing. It looks like "boxjoin" (from the MP "boxes" macros) is not being recognized. Also, apparently unrelated, I wonder if the comparison in "boxes.mp" is correct as it appears that lmtx loads "mp-xbox.mpiv" instead of "mp-xbox.mpxl". Here is some log output and a (mostly) MWE. Thanks for any suggestions, ---K % system > ConTeXt ver: 2021.07.16 22:03 LMTX fmt: 2021.7.21 int: english/english % metapost > initializing instance 'metafun:1' using format 'metafun' and method 'default' % metapost > loading 'metafun' as 'metafun.mpxl' using method 'default' % metapost > initializing number mode 'scaled' % metapost > trace > This is MPLIB for LuaMetaTeX, version 3.11, running in scaled mode. % metapost > trace > % metapost > trace > loading metafun for lmtx, including the plain 1.004 base definitions % metapost > trace > % metapost > trace > >> 2 % metafun > log > % metafun > log > error: Isolated expression % metafun > log > % metapost > trace > >> boxjoin % metapost > trace > <to be read again> % metapost > trace > <*> show metapostversion; boxjoin( % metafun > log > % metafun > log > I couldn't find an '=' or ':=' after the expression that is shown above this % error message, so I guess I'll just ignore it and carry on. % metafun > log > % metapost > trace > ); boxit.a("a"); boxit.bb("bb"); boxit.ccc("ccc"); drawboxed(a,bb,ccc); ; % metapost > trace > %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \startMPdefinitions input boxes \stopMPdefinitions \starttext hello \startalignment[center] \startplacefigure \startMPcode%{aaa} show metapostversion; % boxes.mp: scantokens("input mp-xbox.mp" & (if metapostversion > 2 : "xl" else : "iv" fi)) ; % => loads mp-xbox.mpiv in lmtx rather than mp-xbox.mpxl as i would have expected boxjoin(); % boxjoin(a.se<http://a.se/>=b.sw; a.ne=b.nw); boxit.a("a"); boxit.bb("bb"); boxit.ccc("ccc"); drawboxed(a,bb,ccc); \stopMPcode \stopplacefigure \stopalignment goodbye \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Kevin W. Rudd, Ph.D. CAPT, USN (Ret) Computer Architecture & Computer Engineering Advanced Computing Systems (ACS) Research Program Laboratory for Physical Sciences (LPS) 443-654-7878 kevin(a)lps.umd.edu<mailto:kevin@lps.umd.edu> Visiting Research Professor United States Naval Academy rudd(a)usna.edu<mailto:rudd@usna.edu>

3 3

Metapost Animation of Sine
by Jeroen 22 Jul '21

22 Jul '21

I use this small animation to enlarge a circle \usemodule[animation] \setupinteraction[state=start] \starttext \startanimation[menu=yes,framerate=10] \dorecurse{7}{\expanded {\startframe \startMPcode path p; numeric n, u; u := 1cm; n:=\recurselevel*u; p := fullcircle scaled n; draw p; \stopMPcode \stopframe}} \stopanimation \stoptext This I use to draw a sine \starttext \startMPcode draw(-90/360*1.5cm,-0.9cm) for i = -90 upto 630: .. (i/360*1.5cm,0.9cm*(sind(i)))endfor; \stopMPcode \stoptext When I put it together to animate the sine as following, it does not entirely create the sine animation I am looking for \usemodule[animation] \setupinteraction[state=start] \starttext \startanimation[menu=yes,framerate=10] \dorecurse{7}{\expanded {\startframe \startMPcode path p; numeric n, u; u := 1cm; n:=\recurselevel*u; p := (-90/360*1.5cm,-0.9cm) for i = -90 upto 630: .. (i/360*1.5cm,0.9cm*(sind(i))) endfor shifted (n,0); draw p; \stopMPcode \stopframe}} \stopanimation \stoptext What better way can I create a sine animation with Metapost?

3 6

another MetaPost question (this time on ConTeXt->MetaPost
by Rudd, Kevin 22 Jul '21

22 Jul '21

Hey--- There seems to be a change with color transfer from ConTeXt to MetaPost. Using string references to defined (spot?) colors seemed to work but now does not; all of my colorful figures are now rendered only in shades of gray when using defined (spot?) colors…. The figure drawn by the MWE should have a dark orange border and a transparent (thin) orange fill. However, all colors of this sort seem to end up being a single shade of gray (e.g. black), rendering a box perfect for Halloween use but not for my current purposes. Is there a change to how colors defined in ConTeXt are referenced in MetaPost that I've missed or is there an issue with transferring color (name or parameter) information to MetaPost? Defined (spot?) colors work fine in ConTeXt but not in MetaPost. Many thanks, ---K %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % system > ConTeXt ver: 2021.07.21 19:54 LMTX fmt: 2021.7.22 int: english/english \startMPdefinitions presetparameters "parameters_Test" [ ] def Test = applyparameters "parameters_Test" "do_Test" enddef; def do_Test = pushparameters "parameters_Test"; string p; p = getparameter "prefix"; show p; string c; c = getparameter "color"; show c; path s; s = unitsquare scaled 10cm; show s; fill s withpen pencircle scaled 5pt withcolor p&c; draw s withpen pencircle scaled 5pt withcolor c; enddef; \stopMPdefinitions \starttext \definespotcolor[Thin:orange][orange][p=1,a=normal,t=0.5] \color[orange]{hello} \startalignment[center] \startplacefigure \startMPcode Test [ prefix = "Thin", color = "orange" ]; \stopMPcode \stopplacefigure \stopalignment \color[Thin:orange]{goodbye} \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Kevin W. Rudd, Ph.D. CAPT, USN (Ret) Computer Architecture & Computer Engineering Advanced Computing Systems (ACS) Research Program Laboratory for Physical Sciences (LPS) 443-654-7878 kevin(a)lps.umd.edu<mailto:kevin@lps.umd.edu> Visiting Research Professor United States Naval Academy rudd(a)usna.edu<mailto:rudd@usna.edu>

2 2

How to place text before a table inside a column environment
by Michael Guravage 22 Jul '21

22 Jul '21

I have created a table and placed it inside a columns environment; which works as advertised. However, if I place any text before the column environment, the columns break. More clearly stated, only one column appears on the first table page; whereas two columns resume on subsequent pages. I have attached a mwe where you can use --mode=title to invoke the broken columns. Any advice on how to place text above the columns environment would be gratefully received. With kind regards, Michael

3 4

Getting the local float reference within a float and reuse (?) it later (\somelocalfloat?)
by Benjamin Buchmuller 22 Jul '21

22 Jul '21

Hi, Is there a more convenient way to get the current reference label (stably) from within a float? For example, I would like to make an "image credits" section at the end of a document, so I do something similar to: \defineblock[credits] \starttext \section[sec:topic]{Topic} \startplacefigure [ title={Awesome figure. Image credits in \about[sec:credits].}, reference=fig:awesome, ] \begincredits \in{Figure}[fig:awesome] in \in{Section}[sec:topic] was not created by me. \endcredits \stopplacefigure \section[sec:credits]{Appendix} \useblocks[credits] \stoptext The block mechanism comes in really handy here, especially since I have more to show at the end than just the credits. However, each time I add another figure, I have to replace the references appropriately. So, I was wondering how about exploiting some pointers: \begincredits \somelocalfloat[figure][current] in Section \someheadnumber[section][current] was not created by me. \endcredits \processblocks[credits] % expected \someheadnumber to evaluate to 1? \stopplacefigure Yet, even if asked to be processed within the first section, \someheadnumber evaluates at the end to "2" (should be "1" in my opinion)? This is independent of calling it from within the float or the main text. I guess, my understanding of "processblocks" is wrong in this respect. % \begincredits % This is the call from the text \someheadnumber[section][current] % \endcredits % % \processblocks[credits] Further, \somelocalfloat doesn't show anything. What does it do? Two probably not really urgent questions as I can live with putting the explicit names, but maybe there is an even better approach that comes in handy in more circumstances. Thanks in advance! Benjamin

1 0

drop cap (initial) and indentation
by Gerben Wierda 22 Jul '21

22 Jul '21

With the following minimal example: \definemeasure[CAindent][12pt] % Every chapter body text starts with a drop cap: \setupinitial[n=3,m=1,-\measure{CAindent}]] \setupindenting[yes,\measure{CAindent}] \starttext \placeinitial S{\bf{\kap uppose we}} have a system for the approval of loans. \input knuth \stoptext both the initial and the bold stuff after it is indented. With hoffset I can move the initial, but not what comes after. I have been experimenting but haven’t found a way to solve this. Gerben Wierda (LinkedIn <https://www.linkedin.com/in/gerbenwierda>) R&A Enterprise Architecture <https://ea.rna.nl/> (main site) Book: Chess and the Art of Enterprise Architecture <https://ea.rna.nl/the-book/> Book: Mastering ArchiMate <https://ea.rna.nl/the-book-edition-iii/> PS. switching \kap and \bf has an interesting result, the first character of the words is not in bold. This did not happen with lettrine in mkii

4 6

MP keyword function: string parameters no longer accept string variables directly
by Rudd, Kevin 21 Jul '21

21 Jul '21

Hi--- Here's another apparent change on the MP side---for keyword functions, string parameters no longer accept string variables directly. They do seem to register them (hasparameter => true) but don't capture the value (getparameter => 0). Thus: system > ConTeXt ver: 2021.07.16 22:03 LMTX fmt: 2021.7.21 int: english/english metapost > trace > This is MPLIB for LuaMetaTeX, version 3.11, running in scaled mode. metapost > trace > metapost > trace > loading metafun for lmtx, including the plain 1.004 base definitions metapost > trace > metapost > trace > >> "string constant fuschia ..." metapost > trace > >> true metapost > trace > >> "fuschia" metapost > trace > >> "string variable fuschia = fuschia ..." metapost > trace > >> true metapost > trace > >> 0 metapost > trace > >> "expression containing string variable fuschia = fuschia ..." metapost > trace > >> true metapost > trace > >> "fuschia" String constant: succeeds String variable: fails String expression with string variable: succeeds Here's the MWE: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % system > ConTeXt ver: 2021.07.16 22:03 LMTX fmt: 2021.7.21 int: english/english \startMPdefinitions presetparameters "parameters_Test" [ ] def Test = applyparameters "parameters_Test" "do_Test" enddef; def do_Test = pushparameters "parameters_Test"; show hasparameter "color"; show getparameter "color"; enddef; \stopMPdefinitions \starttext hello \startalignment[center] \startplacefigure \startMPcode string fuschia; fuschia = "fuschia"; show "string constant fuschia ..."; Test [ color = "fuschia" ]; show "string variable fuschia = " & fuschia & " ..."; Test [ color = fuschia ]; show "expression containing string variable fuschia = " & fuschia & " ..."; Test [ color = "" & fuschia ]; \stopMPcode \stopplacefigure \stopalignment goodbye \stoptext %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Kevin W. Rudd, Ph.D. CAPT, USN (Ret) Computer Architecture & Computer Engineering Advanced Computing Systems (ACS) Research Program Laboratory for Physical Sciences (LPS) 443-654-7878 kevin(a)lps.umd.edu<mailto:kevin@lps.umd.edu> Visiting Research Professor United States Naval Academy rudd(a)usna.edu<mailto:rudd@usna.edu>

2 1

Layers – when do they repeat?
by Henning Hraban Ramm 21 Jul '21

21 Jul '21

Hi, I’m struggling with layers again. According to https://wiki.contextgarden.net/Layers and my previous experience, what you typeset on layers appears only once, while you don’t set repeat=yes. But in my example (derived from a magazine layout where I use this margin layer for subtitles) the margin text is repeated on every page. Same behavior in current LMTX and MkIV. What did I wrong? Or is it a bug? (The same setup didn’t cause repeats in 2019.) Hraban \usemodule[visual] \setuplayout[ backspace=82mm, width=118mm, leftmargindistance=4mm, leftmargin=57mm, ] \definelayer[leftmargin][ x=0mm,y=3mm, width=\leftmarginwidth, height=\textheight ] \setupbackgrounds[text][leftmargin][background=leftmargin,state=start] \starttext \setlayerframed[leftmargin][ frame=off, offset=overlay, width=\leftmarginwidth, align={flushleft,verytolerant}, ]{Why is this repeated on every page? It should not.}% \dorecurse{20}{ \fakewords{20}{100}\par } \stoptext

1 1