[NTG-context] Re: get measures as dimension in Lua
Hi Hraban,
On Sun, 2024-06-09 at 22:12 +0200, Henning Hraban Ramm wrote:
> when I define a measure on the TeX side, I used to get at the value in
> Lua with tex.getdim, like:
>
> \definemeasure[Bleed][3mm]
>
> tex.getdimen("Bleed")
>
> But now I get "incorrect dimen name".
> I need it as a dimension, since I do calculations with other dimensions
> like "topspace".
>
> How should I do this correctly?
There doesn't appear to be any official interfaces to get the value of a
measure from Lua, but the following should work okay:
\definemeasure[mymeasure][10pt]
\newdimen\mydimen \mydimen=10pt
\definemeasure[measureexpr][1in + 27.73pt]
\startluacode
-- Returns the unexpanded value of some variable in a namespace.
local function get_variable(namespace, variable)
-- -- Doesn't work since "measure" is defined as a "system
namespace".
-- namespace = interfaces.getnamespace(namespace)
namespace = tokens.getters.macro("??" .. namespace)
return tokens.getters.macro(namespace .. variable)
end
-- Gets the value of a measure and converts it to an integer in sp
units.
local function get_measure(name)
return tex.sp(get_variable("measure", name))
end
-- Gets the \dimexpr-evaluated value of a measure, in sp units.
local function get_measure_expr(name)
local namespace = tokens.getters.macro("??measure")
-- Undocumented, but seems to work as expected.
return tex.getdimensionvalue(namespace .. name)
end
-- Print the values of the lengths.
print(("="):rep(80))
print("mymeasure:" , get_measure("mymeasure") )
print("mydimen:", tex.dimen["mydimen"] )
print("measureexpr:", get_measure_expr("measureexpr"))
print(("="):rep(80))
\stopluacode
\startTEXpage
\measure{mymeasure}
\the\mydimen
\measure{measureexpr}
\stopTEXpage
Thanks,
-- Max
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[NTG-context] get measures as dimension in Lua
Hi,
when I define a measure on the TeX side, I used to get at the value in
Lua with tex.getdim, like:
\definemeasure[Bleed][3mm]
tex.getdimen("Bleed")
But now I get "incorrect dimen name".
I need it as a dimension, since I do calculations with other dimensions
like "topspace".
How should I do this correctly?
(I just assume this used to work – the code is old any maybe stuck in an
intermediate state where I switched from \newdim to \definemeasure…)
Hraban
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[NTG-context] regular online meet-up
I nearly forgot: You’re invited to our regular online meet-up, this upcoming Wednesday, June 12th, 19:00 CEST (UTC+2) at https://lecture.senfcall.de/hen-rbr-rku-oke (same, but shorter: https://u.mtxrun.eu/ctxmtg) ConTeXt users of all levels are welcome! Do you have a subject that you’d like to talk about? Looking forward to seeing you, Hraban (Same blurb as always:) [Howto] * No special software installation required; most modern browsers should work (WebRTC required). * Open the URL above, accept the privacy statement, * enter your name, * click "join" (or "start" if you’re the first), * click "with microphone", allow your browser to access it, check the audio. * Your microphone is muted if you join. Activate microphone and/or camera with the buttons at the bottom. * Minimize the default presentation with the "screen" button, bottom right. * If you’d like to share your screen or upload a file, you can make yourself the presenter: Click on your user name, change the setting, then you’ll see the "screen sharing" button beside the camera button; also there’s now "manage presentations" behind the "plus" button. Beware there is only one presenter at a time, so don’t kill someone else’s presentation. [Technical hints] * Sound is usually better if you use a headset (less noise for everyone). * Connection problems are mostly due to low bandwidth or high latency on your side, e.g. with mobile connections. * Sometimes leaving and re-entering helps. * If audio/video doesn’t work for you, you can still use the text chat. * Screen sharing needs a lot of bandwidth. * BigBlueButton documentation applies: https://bigbluebutton.org/teachers/tutorials/ [Netiquette] * Please use a name that we recognize from here. Some feel uncomfortable with anonymous lurkers. * Mute your microphone while you’re not talking. * It’s nice to show your face at least when you join. * If there are connection problems, stop camera sharing. * The room is set to “everyone’s a moderator“, I trust you... ___ 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: Bibliography: separating different kinds of literature OR Sectioning bibliography by type
Dear Alan,
Thank you very much for your reply. Unfortunately, I don’t get this working.
Also, I don’t find the documentation for flushbtxrendering.
Here’s a minimal working example I’m trying:
\startbtxrenderingdefinitions[mybib]
\definebtx
[mybib]
[default=default,
specification=mybib]
\definebtxrendering
[mybib]
[specification=mybib,
numbering=yes]
\stopbtxrenderingdefinitions
\startsetups btx:mybib:list:link
\btxdoifelse {title} {\btxflush{title}:\space} {No Title}
\btxdoifelse {url} {\btxflush{url};\space} {}
\btxdoifelse {date} {abgerufen \btxflush{date}.} {}
\removeunwantedspaces
\stopsetups
\startsetups btx:mybib:list:imagelink
\btxdoifelse {url} {\btxflush{url};\space} {}
\btxdoifelse {date} {abgerufen \btxflush{date}.} {}
\removeunwantedspaces
\stopsetups
\startbuffer[maindata]
@link{herbariumathome,
title={Herbarium At Home: A Beginner's Guide},
url={https://youtu.be/2kEbCaTe8XM},
date={04.04.2024}},
@imagelink{zooniverse_logo,
url={https://www.sciencelearn.org.nz/images/3873-zooniverse-logo},
date={04.06.2024}}
\stopbuffer
% enable tracing
\enabletrackers[publications, publications.crossref, publications.details,
publications.cite, publications.strings]
\definebtxdataset[main]
\usebtxdataset[main][maindata.buffer]
%\definebtxdataset[bilder]
%\usebtxdataset[bilder][imagedata.buffer]
\usebtxdefinitions[mybib, aps] % aps for stuff which isn’t a link or image
\setupbtx[dataset=main]
\definebtxrendering[bibrendering][mybib, aps][dataset=main]
\starttext
\cite[herbariumathome]
\cite[zooniverse_logo]
\section{Quellen: Bilder}
%\placelistofpublications[bibrendering]
\flushbtxrendering [bibrendering]
[method=dataset,
sorttype=index,
filter=match(category:imagelink)]
\section{Quellen: Webseiten}
\flushbtxrendering [bibrendering]
[method=dataset,
sorttype=index,
filter=match(category:link)]
\stoptext
I would very much appreciate more ideas.
Thank you very much and kind regards
Ben
> On 9 Jun 2024, at 14:37, Alan Braslau via ntg-context
> wrote:
>
> Try something like:
>
> \flushbtxrendering [bibrendering]
> [method=dataset,
>sorttype=index,
>filter=match(category:article)]
>
> I have used the filtering mechanism to select fields, such as
> filter=match(year:2023).
>
> Alan
>
>
>
>
> On Tue, 4 Jun 2024 15:20:14 +0200
> Ben Moon via ntg-context wrote:
>
>> Hey there,
>> I would like to place a list of bibliography according to types
>> (article, book, in proceedings) in my document. Similar like here:
>> https://tex.stackexchange.com/questions/112874/sectioning-bibliography-by-type-with-multiple-types-per-section
>> Sectioning bibliography by type (with multiple types per section)
>> tex.stackexchange.com
>>
>> and here:
>> https://www.mail-archive.com/ntg-context@ntg.nl/msg77056.html
>> The example provided by Hans doesn’t seem to properly work any more,
>> and I cannot make the suggestion work of using two different datasets
>> work as suggested in the same thread. So this is where I’m stuck:
>>
>> \definebtxdataset[main]
>> \usebtxdataset[main][maindata.buffer]
>> \definebtxdataset[images]
>> \usebtxdataset[images][imagedata.buffer]
>> \usebtxdefinitions[mycustom, aps]
>> \setupbtx[dataset=main]
>> \definebtxrendering[bibrendering][mycustom, aps][dataset=main]
>> \definebtxrendering[bibimgrendering][mycustom, aps][dataset=images]
>>
>> \placelistofpublications[bibrendering]
>> \placelistofpublications[bibimgrendering]
>>
>> It would be much appreciated if someone could provide a working
>> example?
>>
>> Thank you very much
>>
>> Ben
>
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[NTG-context] Re: Bibliography: separating different kinds of literature OR Sectioning bibliography by type
Try something like: \flushbtxrendering [bibrendering] [method=dataset, sorttype=index, filter=match(category:article)] I have used the filtering mechanism to select fields, such as filter=match(year:2023). Alan On Tue, 4 Jun 2024 15:20:14 +0200 Ben Moon via ntg-context wrote: > Hey there, > I would like to place a list of bibliography according to types > (article, book, in proceedings) in my document. Similar like here: > https://tex.stackexchange.com/questions/112874/sectioning-bibliography-by-type-with-multiple-types-per-section > Sectioning bibliography by type (with multiple types per section) > tex.stackexchange.com > > and here: > https://www.mail-archive.com/ntg-context@ntg.nl/msg77056.html > The example provided by Hans doesn’t seem to properly work any more, > and I cannot make the suggestion work of using two different datasets > work as suggested in the same thread. So this is where I’m stuck: > > \definebtxdataset[main] > \usebtxdataset[main][maindata.buffer] > \definebtxdataset[images] > \usebtxdataset[images][imagedata.buffer] > \usebtxdefinitions[mycustom, aps] > \setupbtx[dataset=main] > \definebtxrendering[bibrendering][mycustom, aps][dataset=main] > \definebtxrendering[bibimgrendering][mycustom, aps][dataset=images] > > \placelistofpublications[bibrendering] > \placelistofpublications[bibimgrendering] > > It would be much appreciated if someone could provide a working > example? > > Thank you very much > > Ben ___ 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 ___
