October 2016 - ntg-context - NTG Mailing Lists

modules.contextgarden.net update
by Taco Hoekwater 10 Oct '16

10 Oct '16

Hi, Some of you will know already that the module author section of https://modules.contextgarden.net is functional again, as presented at the ConTeXt meeting last month. However, nobody can log in, because module authors now have a password (no more automatic wiki-connect). For new module authors, the registration process will handle the setup of password and such, but legacy authors need manual intervention. So, if you are the current maintainer of a module on modules.cg.net, please drop me an email message so I can hand you a temporary password for logging on (the old wiki-connect code did not store e-mail addresses either, making it hard to reach everyone except via this list). It would be good if the current authors could update their module metadata(s), because the new code has support for a “works with mkii/mkiv” flag as well as some other new fields. Also, I welcome comments and feature requests, now that the website code is in a language I can easily program in. Once most of the modules have been updated to reflect their mkii/mkiv state, I can start designing a search/filter interface to improve the front-end of the site. Best wishes, Taco

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mathmatrix and grid
by Henri Menke 10 Oct '16

10 Oct '16

Dear list, I noticed that when using grid=both then the height of a mathmatrix is rounded down for no apparent reason whereas the depth is rounded up correctly. Visually it appears to me that the height should be rounded up here. In the MWE I added a \vrule to show that the determined height of the line definitely does not coincide with what one would expect. How can I fix that? MWE is below. Cheers, Henri --- \setuplayout[grid=both] \showgrid \starttext \input knuth \startformula \vrule % make lineheight and depth visible \startmathmatrix \NC A \NR \NC B \NR \NC C \NR \stopmathmatrix \stopformula \input tufte \stoptext

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frames for left/right pages
by Thomas A. Schmitz 10 Oct '16

10 Oct '16

Hi, I have a wish list for independent frames and would like to know if this is possible in ConTeXt: 1. left and right pages in a doublesided document have frames with independent text flow, i.e. the text from p. 2 continues on p. 4, from p. 3 on p. 5, etc. The frames are regular frames and can have backgrounds, borders, etc. 2. After a couple of pages, these frames end. Below them, the text flows normally, i.e. begins below frame on p. 6 and continues below frame on p. 7. 3. Since I want to take my data from xml, the content of the frames will be taken from buffers. So this would give, in pseudo-code: \starttext \startleftrightbuffers \leftframe{\getbuffer[left]} \rightframe{\getbuffer[right} \stopleftrightbuffers Here, the normal text begins, it will flow below the frames... \stoptext Is this possible? How would I code that? Thanks for any pointers Thomas

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MKIV caption separator, revisited
by Rik Kabel 10 Oct '16

10 Oct '16

Has any progress been made in the past few years implementing modifiable separators for captions under MKIV? This was raised as an issue by (at least) Mojca Miklavec in December 2010 (http://www.mail-archive.com/ntg-context%40ntg.nl/msg51542.html) and by Andy Thomas 18 months later (http://www.mail-archive.com/ntg-context%40ntg.nl/msg63937.html) (Their issues with stopper have been resolved. In MKIV it is numberstopper.) Here is an MWE demonstrating the problem. It compiles cleanly, but the separator remains the default period. With MKII, it generates a figure with a hyphen and not a period. \setupcaptions[separator=-] \setupexternalfigures[location=default] \starttext \chapter{Chaptername} \section{Sectionname} \placefigure[here][fig:1]{Caption}{\externalfigure[cow.pdf]} \in{See Figure}{.}[fig:1] \stoptext -- Rik Kabel

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Last version standalone ConTeXt issue.
by Jaroslav Hajtmar 10 Oct '16

10 Oct '16

Hello ConTeXist. In the latest version ConTeXt it stopped working my macros which contents function he once advised me Taco. It is low level lua code. Can anyone advise me what the problem is, eventually. how to replace Lua code in my function to make it work again? Macros worked at least 6 years and now crashes. Here is my function: function thirddata.handlecsv.texmacroisdefined(macroname) -- check whether macroname macro is defined in ConTeXt -- function is used to test whether the user has defined the macro \macroname. If not, it needs to define any default value if token.csname_name(token.create(macroname)) == macroname then return true else return false end end Is there any alternative (ConTeXt like), which is should be possible use in Lua code? Thanx Jaroslav Hajtmar

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Question about natural tables
by Fabrice Couvreur 09 Oct '16

09 Oct '16

Hello, I do not succeed in having two sub-columns of the same width in the third column. Thank you. Fabrice \useMPlibrary[dum] \startsetups[table:initialize] \setupTABLE[start][align={middle,lohi},offset=0.8ex] \setupTABLE[column][2][width=0.5\textwidth] \setupTABLE[column][3][width=0.4\textwidth] \setupTABLE[column][first][width=1.5cm] \setupTABLE[1][1,2,3][frame=off] \stopsetups \starttext \startlinecorrection[blank] \startmidaligned \bTABLE[setups=table:initialize] \bTR \bTD \eTD \bTD Algébriquement \eTD \bTD [nc=2] Graphiquement \eTD \eTR \bTR \bTD \eTD \bTD[nr=2] L'équation \math{ax^2+bx+c=0} \eTD \bTD[nc=2] La parabole d'équation \math{y=ax^2+bx+c} \eTD \eTR \bTR \bTD \eTD \bTD Cas où \math{a\geqslant 0} \eTD \bTD Cas où \math{a\leqslant 0} \eTD \eTR \bTR \bTD \math{\Delta >0} \eTD \bTD admet deux solutions distinctes : \startformula x_1=\frac{-b-\sqrt{\Delta}}{2a}\quad \rm{et} \quad x_2=\frac{-b+\sqrt{\Delta}}{2a} \stopformula \eTD \bTD[nc=2] coupe deux fois l'axe des abscisses \dontleavehmode\startcombination[2*1]{\externalfigure[dummy][scale=900]}{}{\externalfigure[dummy][scale=900]}{} \stopcombination \eTD \eTR \bTR \bTD \math{\Delta=0} \eTD \bTD admet une unique solution : \startformula x_0=-\frac{b}{2a} \stopformula \eTD \bTD[nc=2] coupe l'axe des abscisses en un seul point \dontleavehmode\startcombination[2*1]{\externalfigure[dummy][scale=900]}{}{\externalfigure[dummy][scale=900]}{} \stopcombination \eTD \eTR \bTR \bTD \math{\Delta<0} \eTD \bTD n'admet pas de solution \eTD \bTD [nc=2] ne coupe pas l'axe des abscisses \dontleavehmode\startcombination[2*1]{\externalfigure[dummy][scale=900]}{}{\externalfigure[dummy][scale=900]}{} \stopcombination \eTD \eTR \eTABLE \stopmidaligned \stoplinecorrection \stoptext

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Slides/material from the Context User Meeting
by Mohammad Hossein Bateni 09 Oct '16

09 Oct '16

Hello Mojca, If I recall correctly someone mentioned on the list that you typically collect the slides during the meeting. Would it be possible to share them if you have done so this year? In general, is there any material related to the meeting that unlucky non-participants can access? I mean, besides the group photo that's up on the website :) Who's in charge of the "proceedings," by the way? When will that be sent to members of the ConTeXt User Group? Thanks, ~MHB

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Access ConTeXt dimensions in Lua
by Henning Hraban Ramm 09 Oct '16

09 Oct '16

Hi all, I’m trying to write some dimensions to a file, e.g. \startluacode io.savedata("settings.txt", context("\\textwidth")) \stopluacode But that context() construct is nil. There’s probably a simple solution... ;) Greetlings, Hraban --- http://www.fiee.net http://wiki.contextgarden.net https://www.cacert.org (I'm an assurer) GPG Key ID 1C9B22FD

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How do I compile a "flat" pdf?
by Bomber K. 09 Oct '16

09 Oct '16

Hi guys, I am trying to create a pdf which contains some graphics that I created. I want to pass my PDF digitally but I don't want users to be able to right-click on a gfx and save it. I think this is called "flattening". Is there a way in CTX to create such a file or do I have to recompile the PDF with 3rd party software? Is there maybe even a way to flatten only specific objects like, only one picture of many or all, and leave form fields unflattened? Thanks, Sebastian

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Recommendations on presentations
by Jan U. Hasecke 08 Oct '16

08 Oct '16

Hi all, Keynote is the only software that ties me to MacOS X. I would like to copy some of its presentations styles to ConTeXt (MKIV). What is the best way to do this? I read about simpleslides and looked into the code but I am unsure whether I start from a simpleslides example. Is it better to simply define the layout from scratch? juh

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