February 2019 - ntg-context - NTG Mailing Lists

State of the reference manual contextref.pdf
by Marco Patzer 11 Feb '19

11 Feb '19

Hi! I'm wondering about the state of the reference manual contextref.pdf. The wiki states “ConTeXt reference manual. This is the most comprehensive and up-to-date general manual[…]” Date: September 27, 2013 There used to be SVN access on foundry.supelec.fr/projects/contextman, but apparently it's permanently down. Where is the manual hosted at the moment? The wiki still points to foundry.supelec.fr: https://wiki.contextgarden.net/Improving_the_manuals Some years ago there was a discussion about moving it to github. But I doubt that has ever taken place. Marco

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about vertical alignment
by Jeong Dal 10 Feb '19

10 Feb '19

Dear all, I used \itemtag in \starttabulate to make columns in itemization for some reasons. Actually, it works fine. For more detailed alignment, I’d like to ask about the fine tuning of vertical alignment. Here is an MWS. %%%%%%% \showframe \starttext \startitemize[n] \item Prove the following identity. \startitemize[n][stopper=)] \item ${\displaystyle \int \tan^n x \,dx=\frac{\tan^{n-1}x}{n-1}-\int \tan^{n-2}x \,dx}$ ($n>1$) \item ${\displaystyle \int \sec^n x \,dx=\frac{\sec^{n-2}x \tan x}{n-1}+\frac{n-2}{n-1} \int \sec^{n-2}x \,dx}$ $(n>1)$ \stopitemize \item Integration \startitemize[n][stopper=)] \starttabulate[||lw(.42\textwidth)||lw(.42\textwidth)|] \NC\itemtag\NC ${\displaystyle \int (2x+3)e^{-x} \,dx}$ \NC\itemtag\NC ${\displaystyle \int x^2e^{x} \,dx}$ \NC\NR\TB[halfline] \NC\itemtag\NC ${\displaystyle \int x \cos x ~d x }$ \NC\itemtag\NC ${\displaystyle \int x^2 \cos 2x ~d x }$ \NC\NR\TB[halfline] \stoptabulate\stopitemize \stopitemize \stoptext %%%%%%%% In the output, the second itemization number is aligned at the starting point of “Prove …”. But the second itemization number of \itemtag is not at the starting point of “Integration…” So, it looks a little bit awkward. Of course, it is because of "lw(.42\textwidth)…” things. Is there a method to make the starting point of \itemtag aligned to that of the “Integration…”? Thank you for reading. Best regards, Dalyoung

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Vertical space with "alternative=middle" for unnumbered sections
by Wolfgang Schuster 10 Feb '19

10 Feb '19

Hi, when I use \setuphead[alternative=middle] with a unnumbered header (e.g. \title) I still get the vertical space where the counter is placed, is this intended? \setuphead [chapter] [alternative=middle] \showframe[text][text] \starttext \chapter{Chapter} \title{Title} \stoptext Wolfgang

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\date behaving strange
by martin 10 Feb '19

10 Feb '19

I'm getting a bit confused. The \date function doesn't result in a formatted date. That goes for some files that are a few weeks old. What am I missing? \starttext \date[d=2,m=3,y= 2018] \stoptext results in: d=2m=3y= 2018 An optional formatting parameter has no effect \date[d=1, m=4, y=2018][weekday, {\\}, dd,{-}, mm,-, year] using: mtx-context | current version: 2019.02.07 18:46

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Automatic thousands separation in \unit
by Marco Patzer 09 Feb '19

09 Feb '19

Hi! I'm wondering if there's a way to have automatic thousands separation in the \unit command? \spaceddigits does that, but it doesn't work inside \unit. And using both would be quite verbose to write. Example: \starttext %% no thousands separation \unit{123456789 volt} %% manual thousands separation works \unit{123,456,789 volt} %% automatic thousands separation, but not using \unit \let\spaceddigitsseparator, \spaceddigits{123456789}\,V %% fails, no output \unit{\spaceddigits{123456789} volt} \stoptext Marco

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Bad names
by Marco Patzer 09 Feb '19

09 Feb '19

Hi! I was wondering what context considers a “bad” file name and what consequences that might have. From workflows-mkiv.pdf: “Bad names are reported and suitable action can be taken” Indeed, every run context tells me how many files are badly named: mkiv lua stats > graphics processing time: 0.021 seconds including tex, 14 processed images, 14 unique asked, 7 bad names A small test: \starttext \externalfigure [a] %% good \externalfigure [a.png] %% good \externalfigure [a.b.png] %% good \externalfigure [a.1.png] %% bad \externalfigure [a-1.png] %% good \externalfigure [a-.1.png] %% bad \externalfigure [a-b.1.png] %% bad \externalfigure [a-1.b.png] %% good \externalfigure [A] %% good \externalfigure [A.B] %% good \externalfigure [A.b] %% bad \externalfigure [A.B.png] %% bad \externalfigure [A.png] %% bad \externalfigure [a.c-b.b.png] %% bad %% bad names are reported in red \usemodule [s-figures-names] \stoptext I note that “A.png” and “a.1.png” are bad file names and “a-1.b.png” and “a-1.png” are good file names. What's the idea behind that logic? “A.png” and “a.1.png” seem perfectly fine file names to me. The files are included without issues, regardless of context's opinion about the name. What is a bad name for context? Does it have any consequences if badly named files are used? Just being curious. Marco

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404 error: Not found for first-setup.sh
by Marcus Vinicius Mesquita 08 Feb '19

08 Feb '19

Dear list, When I try to fetch the file first-setup.sh with wget http://minimals.contextgarden.net/setup/first-setup.sh the server answers with: 404 error: Not found. Marcus Vinicius

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Background color with \showgrid and columns
by Marcus Vinicius Mesquita 08 Feb '19

08 Feb '19

Dear list, When processing the attached mwe: \setuplayout[grid=yes] \showgrid \setupcolumns[n=2] \starttext \startcolumns \input knuth \column \input knuth \stopcolumns \stoptext in the final result there is a background color. How do I get rid of it? Marcus Vinicius

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outlined font using MetaFun
by Jeong Dal 08 Feb '19

08 Feb '19

Dear all, The following code which is borrowed from MetaFun manual is working nicely. %%%%%% \setupMPvariables[outlineT][tt="Hello"] \startuseMPgraphic{outlineT} draw outlinetext.b (\MPvar{tt}) (withcolor .5white) (withcolor .625blue withpen pencircle scaled .2pt) scaled 3 ; \stopuseMPgraphic \starttext \useMPgraphic{outlineT} \stoptext %%%%%%%% However, the next example is not working(without \setupMPvariables[]). %%%%%%% \startuseMPgraphic{outlineT}{tt} draw outlinetext.b (\MPvar{tt}) (withcolor .5white) (withcolor .625blue withpen pencircle scaled .2pt) scaled 3 ; \stopuseMPgraphic \starttext \useMPgraphic{outlineT}{tt=“Hello”} \stoptext %%%%%%%% So, the trial to use above code for chapter title as following didn’t work either. %%%%%%%% \startuseMPgraphic{outlineT}{tt} string tt; draw outlinetext.b (\MPvar{tt}) (withcolor .5white) (withcolor .625blue withpen pencircle scaled .2pt) scaled 3 ; \stopuseMPgraphic \define[1]\myTest{\useMPgraphic{outlineT}{#1}} \setuphead[chapter] [textcommand=\myTest, numbercommand=\myTest, number=yes] \starttext \startchapter[title={First chapter}] Chapter \stopchapter \stoptext %%%%%%%%%%% Is there any way to make it work? thank you. Best regards, Dalyoung

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Metapost graphic in setupbackground
by Jan U. Hasecke 08 Feb '19

08 Feb '19

Hi all, I make my first steps with Metapost. I would like to set the background of all pages to a Metapost graphic. But only the first page has the defined background. I also tried with \startuseMPgraphic with no success --- mwe --- \startreusableMPgraphic{kreis} draw fullcircle scaled 70mm withcolor red withpen pencircle scaled 6mm; \stopreusableMPgraphic \definelayer[kreisbackground][width=70mm,height=70mm] \setlayer[kreisbackground] [x=-3mm,y=-3mm] {\reuseMPgraphic{kreis}} \setupbackgrounds[paper][background=kreisbackground, state=start] \starttext \input lorem \page \input lorem \stoptext TIA juh

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