[NTG-context] Lua and inject.path to make a disconnected MetaPost path?
Hello LuaMetaFun Fans,
Can I use mp.inject.path in Lua to create a disconnected path in MetaPost?
This is for my module that draws globes. I currently do something like this for
drawing the continents. (This MWE has two triangular continents.)
\startluacode
continents = {}
continents[1] = {{0,0}, {-1,-1}, {-1,0}, cycle = true }
continents[2] = {{0,1}, {1,0}, {1,-1}, cycle = true }
function mp.getglobepath(continentnum)
mp.inject.path(continents[continentnum])
end
\stopluacode
\startMPpage
path p[], q ;
p1 = (lua.mp.getglobepath(1) scaled 1cm) ;
p2 = (lua.mp.getglobepath(2) scaled 1cm) ;
q = p1 && p2 && cycle ;
draw p1 withpen pencircle scaled 2pt withcolor .7 ;
draw p2 withpen pencircle scaled 2pt withcolor .7 ;
fill q withcolor 0.9 ;
draw q withcolor red ;
\stopMPpage
The path q has both of the continents, disconnected.
I’d like to produce the two continents in Lua and pass them to MetaPost as a
single disconnected path, using something like this:
\startluacode
continents = {
{0,0}, {-1,-1}, {-1,0}, — Change this to make a disconnected path!
{0,1}, {1,0}, {1,-1},
cycle = true }
function mp.getglobepath()
mp.inject.path(continents)
end
\stopluacode
\startMPpage
path p ;
p = (lua.mp.getglobepath() scaled 1cm) ;
fill p withcolor 0.9 ;
draw p withcolor red ;
\stopMPpage
If I can make the path p disconnected, this would allow me to make exactly the
path I want in Lua, before passing it to MetaPost, rather than passing lots of
paths and connecting them in MetaPost with the mysterious (to me) && or .
Thanks!
Gavin
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[NTG-context] Re: Why the way key-value argument is called affected the document's output?
Since in the "setup-en.pdf" on p. 234, in "\setuplayout" the possible values for "grid" key is "yes", "no" (default), and "off" respectively. So what does the "yes " (with a trailing space) sets "grid" key to? Ali ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: Why the way key-value argument is called affected the document's output?
Ali Ali schrieb am 08.01.2024 um 23:33: So is "\setuplayout[grid=yes]" AND "\setuplayout[ grid=yes ]" not same? I mean, we are initializing "grid" to "yes" in both cases. No, in the first case you end the value of the grid-key with ] which results in "yes" as argument but in the second case you have a linebreak before ] which adds a space to the argument which results in "yes " (with a trailing space) as argument. Wolfgang ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: Why the way key-value argument is called affected the document's output?
So is "\setuplayout[grid=yes]" AND "\setuplayout[ grid=yes ]" not same? I mean, we are initializing "grid" to "yes" in both cases. Ali ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: Why the way key-value argument is called affected the document's output?
On 1/8/2024 11:05 PM, 1114...@gmail.com wrote:
Hi,
I was cleaning and formatting my context file and then when I compiled it, the
output I got introduced extra vertical spacings at the section headings that
weren't there in the previous compilations. I had to spend enormous amount of
time trying to fix it so to emulate my previous outputs. Turns out the problem
was how I called one of the key-value argument in the document.
I really wanna know the reason why it did influenced the output?
Provided below is the minimal source code (and it is producing different
outputs, meaning the vertical spacings are not same, on my device running the
version released in the September and also tested with the latest release.)
"""
%% differences in outputs, for how "grid=yes" is called.
%% Type 1.
%\setuplayout[grid=yes]
Here you set the grid variable to "yes".
%% Type 2.
%\setuplayout[
%grid=yes
%]
Here you set the grid variable to "yes " so a trailing space.
\setuphead[section][grid=low] %% needed to observe the output difference
\starttext
\title{Alpha}
\subsection{Beta}
\input{knuth}
\stoptext
So this is ok:
\setupfoo
[a=A,
b=B]
\setupfoo
[a=A,
b=B,
]
I'm not aware of funmdamental changes in the parse, apart from that in
many setup commands one can now do this:
\setupfoo
[A=\this[works],
B=\that[doestoo]]
as nested brackets are handled.
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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[NTG-context] Why the way key-value argument is called affected the document's output?
Hi,
I was cleaning and formatting my context file and then when I compiled it, the
output I got introduced extra vertical spacings at the section headings that
weren't there in the previous compilations. I had to spend enormous amount of
time trying to fix it so to emulate my previous outputs. Turns out the problem
was how I called one of the key-value argument in the document.
I really wanna know the reason why it did influenced the output?
Provided below is the minimal source code (and it is producing different
outputs, meaning the vertical spacings are not same, on my device running the
version released in the September and also tested with the latest release.)
"""
%% differences in outputs, for how "grid=yes" is called.
%% Type 1.
%\setuplayout[grid=yes]
%% Type 2.
%\setuplayout[
%grid=yes
%]
\setuphead[section][grid=low] %% needed to observe the output difference
\starttext
\title{Alpha}
\subsection{Beta}
\input{knuth}
\stoptext
"""
Best regards,
Ali
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[NTG-context] Re: Links
Am 08.01.24 um 14:10 schrieb Ursula Hermann:
Dear List,
Is this the right way?
I want to use linked bibliography numbers, linked Chapter, section
subsection, linked margin numbers, in the text.
\setupinteraction[state=start]
This is essential.
\starttext
Der Wert von \m{y = f(x)} ist unabhängig von der Wahl\par von
\m{x\doubleprime} ist gleichbedeutend mit \m{∃y : ∀x : f(x) = y} \par
(Beutelspacher [\hyphenatedurl {10},S.54]).
\stoptext
\hyphenatedurl only changes the hyphenation of its content, it doesn’t
create a link. In your example it makes no sense.
Generally, you need an anchor (link target) to link to, e.g.
\startchapter[title={My chapter},reference=chap:first]
or
\chapter[chap:first]{My chapter}
This works the same for other structure levels. I’m not sure about
bibliography, but I think you must use the bib entry code.
You can also set anchors manually using \textreference and \pagereference.
Then you can use \in[chap:first], \about[chap:first] or \at[chap:first].
For external links, you use \goto (it’s a bit extensive).
Please look up the syntax reference in the wiki.
Hraban
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[NTG-context] Links
Dear List,
Is this the right way?
I want to use linked bibliography numbers, linked Chapter, section subsection,
linked margin numbers, in the text.
\setupinteraction[state=start]
\starttext
Der Wert von \m{y = f(x)} ist unabhängig von der Wahl\par von \m{x\doubleprime}
ist gleichbedeutend mit \m{∃y : ∀x : f(x) = y} \par (Beutelspacher
[\hyphenatedurl {10},S.54]).
\stoptext
Many thanks
Uschi
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[NTG-context] Re: vim syntax highlighting bug?
I was in touch with the maintainer of the context.vim syntax file about
this. It turns out to be an issue with the lua.vim file that is included
in the context one. Lua.vim highlights trailing parentheses as errors,
but that’s done in a way that doesn’t work well when the file is
included by other syntax files. It somehow steals the syntax context and
makes Vim stay in Lua mode when it should go back to ConTeXt mode (I’m
not too savvy of the details).
The maintainer came up with a workaround [1] to force returning to
ConTeXt mode, although the parenthesis remains highlighted as an error.
That highlight bothers me, so my own workaround is to copy the lua.vim
file in my own .vim/syntax folder and comment out the ‘syn match
luaParenError ")"’ line (l.61 in my Vim version).
Maybe playing with the ‘contained’ keyword (in lua.vim) could lead to a
proper solution, but I’m happy enough with my workaround that I haven’t
felt the need to investigate this issue any further.
Hope that helps,
Vincent
[1] https://github.com/vim/vim/pull/13778
On 06/01/2024 12:28, Damien Thiriet via ntg-context wrote:
Hello,
Happy New Year!
I got into a bug in my Vim syntax highlighting version.
Highlight stays in lua mode after ctxlua macro is closed.
Here is a MWE, where «this should not be highlitghted as
a comment indeed is.
\starttext
Hello!
\ctxlua{context("does the parser work?")}
-- this should not be highlighted as a comment
\stoptext
Do other Vim users come into this?
Is my syntax file outdated?
I am using this Vim version on OpenBSD 7.3 -stable:
VIM - Vi IMproved 9.0 (2022 Jun 28, compiled Sep 6 2023 08:55:14)
Included patches: 1-1876
Best regards,
Damien Thiriet
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[NTG-context] Cron /var/www/aanhet.net/context/bin/cron/context-mirror
receiving incremental file list ./ ctan.lsr document-2.htm download-1.htm download-2.htm logo-ade.png logo-cts.png logo-pod.png rss.xml show-fil.pdf show-gra-1.htm show-gra-10.htm show-gra-11.htm show-gra-12.htm show-gra-13.htm show-gra-14.htm show-gra-15.htm show-gra-16.htm show-gra-17.htm show-gra-18.htm show-gra-19.htm show-gra-2.htm show-gra-20.htm show-gra-21.htm show-gra-22.htm show-gra-23.htm show-gra-24.htm show-gra-25.htm show-gra-26.htm show-gra-27.htm show-gra-28.htm show-gra-29.htm show-gra-3.htm show-gra-4.htm show-gra-5.htm show-gra-6.htm show-gra-7.htm show-gra-8.htm show-gra-9.htm show-gra.pdf context/latest/ context/latest/cont-lmt.zip context/latest/cont-mpd.zip context/latest/cont-ppc.zip context/latest/cont-sci.zip context/latest/cont-tmf.zip context/latest/cont-tst.7z context/latest/cont-tst.tar.xz context/latest/cont-tst.zip general/manuals/ general/manuals/colors-mkiv.pdf general/manuals/luametatex.pdf general/manuals/ontarget.pdf general/manuals/primitives.pdf general/manuals/sql-mkiv.pdf general/qrcs/ general/qrcs/setup-mapping-de.pdf general/qrcs/setup-mapping-en.pdf general/qrcs/setup-mapping-fr.pdf general/qrcs/setup-mapping-it.pdf general/qrcs/setup-mapping-nl.pdf sent 234,726 bytes received 76,243,717 bytes 4,635,057.15 bytes/sec total size is 577,881,441 speedup is 7.56 Running archiver: New dir: /var/www/aanhet.net/context//htdocs/archives/context-2024-01-08.12 245335154 /var/www/aanhet.net/context//htdocs/archives/context-2024-01-08.12/latest 126745317 /var/www/aanhet.net/context//htdocs/archives/context-2024-01-08.12/current 372084567 /var/www/aanhet.net/context//htdocs/archives/context-2024-01-08.12 372084567 total ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] update
Hi, With the build farm still down I now use an alternative build, that is, I run a compile script on s bunch of machines and hope for the best. In the process I decided to drop 32 bit installers (users can generate bins themselves if needed). I also drop bsd version and just use the latest. For OSX I use a retired macbook air that Hans vd Meer sent me that has an old operating system but new enough so that its xcode can make intel and arm binaries. The linux binaries have teh problem that they depend on glibc versions and I'm assuming a reasonable up to date system so I use opensuse leap (which is not even that new with it comes to glibc but we use it on servers here). texmf-win64 : laptop (linux subsystem on windows) texmf-windows-arm64 : laptop (native visual studio) texmf-linux-64 : linux-opensuse-leap (latest leap 15) texmf-linux-aarch64 : raspberrypi (latest debian) texmf-linuxmusl-64 : linux-alpine-64 (whatever) texmf-osx-64: airbook/118/hvdm(older xcode) texmf-osx-arm64 : airbook/118/hvdm(older xcode) texmf-freebsd-amd64 : openbsd-amd64-14(latest) texmf-openbsd-amd64 : openbsd-amd64-74(latest) If your platform doesn't work you can download the texmf.zip, context-texmf.zip and installation.pdf and start from there: create the tree, compile from source, move the binaries and it should just work. I have no clue if the uploaded files are working but let's see ... (some paths have been renamed) Hans - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: Metapost docs
On 1/8/2024 1:50 AM, Shiv Shankar Dayal wrote: I see many libraries for Metapost in Context source. Where are these documented? I see Metafun manual as well, but I do not find all the included libraries described. i'm not sure what you mean with library ... can you give an example? Hans - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl webpage : https://www.pragma-ade.nl / https://context.aanhet.net (mirror) archive : https://github.com/contextgarden/context wiki : https://wiki.contextgarden.net ___
[NTG-context] Re: Question to a formular
Dear Taco,
many thanks.
Uschi
-Ursprüngliche Nachricht-
Von: Taco Hoekwater
Gesendet: Freitag, 05. Jänner 2024 15:29
An: mailing list for ConTeXt users
Betreff: [NTG-context] Re: Question to a formular
> On 05/01/2024 14:27, Ursula Hermann wrote:
>
>> Can someone help me please?
>
>
> \starttyping
> 0! := 1
> (n + 1)! := (n + 1) n!
> \stoptyping
Or:
\startformula
\startalign[n=1,align={1:left}]
\NC 0! := 1\NR
\NC (n + 1)! := (n + 1) n!\NR
\stopalign
\stopformula
https://wiki.contextgarden.net/Multiline_equations
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