quack

baaa!

@Plergux ooh hi sheep person!

/rabbit sound

-.- my Python can't read in a dill (that's like pickle) blob I dumped yesterday :( (lucky me, also saved as csv as fallback)

@Skillmon hi mr. rabbit!

@PauloCereda Hi duck person! And hello mr. rabbit person @Skillmon :)

ooh

@Skillmon which chars are forbidden to be used in pxpic?

ooh a ship-shipping ship, shipping shipping ships

@Plergux ^^ there could have a sheep at the helm :)

ooh a sheep eating chips :)

This is becoming better and better

@PauloCereda :D Don't know if I'd call it a ship though. It's a bit flat. :p

@Plergux ooh

@UlrikeFischer You've given me a lot to ponder ...

@JosephWright ? what did I do?

@PauloCereda please do not make this joke with sheets

@yo' ooh

@UlrikeFischer I'll mail

@UlrikeFischer pdfrender: has a knock-on effect on color (I think)

@PauloCereda strictly speaking, only those forbidden by TeX (comment char, \outer macros, ignored chars), plus a special end marker (\pxpic@end). And one set of braces is stripped from each element during each parsing step (so a is the same as {a}, and if you only have one element in a line two braces are stripped, one for being an element of the line list, one for being an element of the pixel list in each line, so \pxpic{a} behaves like \pxpic{{a}} behaves like \pxpic{{{a}}}).

@PauloCereda oh, and spaces between elements and on both ends of each list (and sublist) are ignored.

@PauloCereda everything else should work (even #, but be aware that nesting inside a macro definition won't work with a single # and you'd have to double them).

@Skillmon ooh I have plans

@PauloCereda and nothing is expanded, every element is individually \detokenized in mode=px. In the other modes everything is forwarded as is to \color.

@Skillmon I will use letters, so my image can have at most 52 colours. :)

@PauloCereda multiple letters would work as well, plus you can use numbers.

@PauloCereda \pxpic[mode=px, colours={rr=red,oo=orange,or=red!50!orange}]{{{rr}{oo}{or}}{{or}{rr}{oo}}{{oo}{or}{rr}}} works as well.

@PauloCereda so if you decide to switch to two letters per pixel you'd get a slightly bigger colour space :)

@Skillmon OOOOOOOH

@Skillmon ...now let's see who's the first to write an "any image"->pxpic converter and integrate that into Gimp... ;-P

@Rmano half way done. :)

This bloke is efficient ↑↑

@PhelypeOleinik <3

@PauloCereda :-O

@UlrikeFischer with a correctly placed comma, too! (thumbs up!)

> UK government to ban travellers from Brazil amid new Covid variant, PM hints

GO BRAZIL

> The prime minister replied: “We are: we’re putting in extra measures to ensure that people coming from Brazil are checked: and indeed stopping people coming from Brazil.”

@DavidCarlisle @JosephWright ^^ oh no

@PauloCereda You're safe: they don't say “ducks from Brazil”.

@egreg ooh a loop

@PauloCereda well, or you stick to mode=RGB and use the normal RGB colour space. I think if you really go for 52^2 colours, mode=px might get a little bit unefficient.

@Skillmon ooh

@Skillmon nah :)

@PauloCereda (just because it defines a macro for each pixel name, so defining that colour space will take some time, and waste a bit of TeX memory)

@Skillmon ooh

@Skillmon breaklines are allowed?

{{aaaaaaa
aaaaaaa}
{bbbbbb
bbbbbbb}}

@PauloCereda yes, TeX's tokenization converts that to {{aaaaaaa aaaaaaa} {bbbbbb bbbbbbb}} and spaces are ignored. Just two consecutive line breaks are a problem. (because \par)

@Skillmon Got it.

@PauloCereda the list is read as a normal TeX argument. No fancy category changes or anything, so whatever is true for a normal macro parameter applies :)

@Skillmon I will add a % at the end. :)

@PauloCereda you could, but you don't have to.

@Skillmon <3

@Rmano next step: Write a PGF-backend using pxpic :)

@Skillmon and the snakebox <3

And bit by bit, imaging in TeX returns to what it was in the PicTeX era

@DavidCarlisle twitter.com/DudeWhoCode/status/1349626179976716289

@PhelypeOleinik resorting to pixel art might be a good option during quarantine. :)

@PauloCereda Brazilian-exclusive quarantine :D

@PhelypeOleinik ooh

@PauloCereda See Skype

@PauloCereda I already coded a \snakefill.

@Skillmon ooh

@Rmano there is nothing worse than drawing circuits with Words built-in drawing tools.

@Skillmon Ah, never even tried --- before circuitikz I used xcircuit and before that I drew that by hand.

@Rmano unfortunately, I have no choice :(

@PhelypeOleinik did that era end?

@PauloCereda I have no sympathy

@DavidCarlisle Went out of fashion, it seems, for no good reason

@PhelypeOleinik I think the drawings had a nice hand-drawn look because of the unsteady lines produced by all those dots :)

@PauloCereda I have no sympathy as well, but most likely for a different reason :)

@DavidCarlisle oh

@Skillmon Yes!

@Rmano would that have made this easier tex.stackexchange.com/a/149616/1090

xcircuit generates directly an .eps maybe you can convert it to EMF

This package is so fun!

\documentclass{standalone}

\usepackage{pxpic}

\pxpicsetup{
  mode = px,
  colours = {
    w = white,
    y = yellow,
    b = black,
    r = red!50!orange,
  },
  skip = .,
  size = 10pt
}

\begin{document}


\pxpic{
  {wwwwwwwwwwww}
  {wwwwwwyyywww}
  {wwwwwyyyyyww}
  {wwwwwyyybyww}
  {wwwwwyyyyrrw}
  {wywyyyyyywww}
  {wyyyyyyyyyww}
  {wyyyyyyyyyww}
  {wyyyyyyyyyww}
  {wwyyyyyyywww}
  {wwwyyyyywwww}
  {wwwwwrwrwwww}
  {wwwwrrwrrwww}
  {wwwwwwwwwwww}
}


\end{document}

Does anybody know a good image to pixelart converter? I tried a few, but they will usually mix the colours at the boarders.

@samcarter_says_quack I am writing one. :)

@samcarter_says_quack ooh it's a duck I just know it, I can read pixel

ooh

@PauloCereda Ohhhhh, I'm very much looking forward!

@samcarter_says_quack lunch

@DavidCarlisle oh, no!

@PauloCereda Next update will include a way to define (and reuse) a colour list.

@Skillmon ooh

(still not as efficient as using mode=RGB for many colours, but atleast a bit better if one has to reuse the same colour list a few times)

@samcarter_says_quack that's much cuter than the duck I have in the documentation :(

@samcarter_says_quack (btw. you don't need skip=. in that image)

pxpic tikzducks crossover:

\documentclass{standalone}

\usepackage{pxpic}

\pxpicsetup{
  mode = px,
  ht = 18pt,
  wd = 10pt,
  colours = {
    1 = yellow,
    h = white,
    + = orange,
    w = white,
    b = black,
  },
}

\begin{document}


\pxpic{
{wwwwwwwwwwwwwwwwwww11111111111111wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww}
{wwwwwwwwwwwwwwww11111111111111111111wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww}
{wwwwwwwwwwwwww111111111111111111111111wwwwwwwwwwwwwwwwwwwwwwwwwwwwww}
{wwwwwwwwwwwww111111111111111111111111111wwwwwwwwwwwwwwwwwwwwwwwwwwww}

@Skillmon This happens when one copies random examples from the manual :)

@samcarter_says_quack oh, non-square pixels!

@Skillmon Yes! I was very happy to see that you had this option! So I could convert the image I had originally optimised for ASCI art with letters that are taller than wide.

\documentclass{standalone}

\usepackage{pxpic}

\pxpicsetup{
  mode = px,
  colours = {
    w = white,
    b = black,
  },
}

\begin{document}


\pxpic{
{
wwwwwwwwwwwwwwwwwwwwwwwwwbbbbbbbbbbbbbbbbbbbwwwwwwwwwwwwwwwwwwwwwwwww
}{
wwwwwwwwwwwwwwwwwwwwbbbbbbbbbwwwwwwwwwwwwbbbbbbbbwwwwwwwwwwwwwwwwwwww
}{
wwwwwwwwwwwwwwwwbbbbbbwwwwbbwwwwwwwwwwwwwwwwwwwbbbbbbwwwwwwwwwwwwwwww
}{
wwwwwwwwwwwwwbbbbbwwwwwwwbbbwwwwwwwwwwwwwwwwwwwwwwwbbbbbwwwwwwwwwwwww
}{
wwwwwwwwwwwbbbbwwwwwwwwbbbbbbbbbwwwwwwwwwwwwwwwwwwwbbbbbbbwwwwwwwwwww

@UlrikeFischer Petra didn't like my update :(

Oh my, I hate the Word equation editor!

@DavidCarlisle :(

@JosephWright do this to solve the word problem: gifimage.net/wp-content/uploads/2018/06/…

@samcarter_says_quack wanna try my converter? :)

@Skillmon ^^

gist.github.com/cereda/8e07d64cb4b4af7645d9935d944ea315

@PauloCereda WOW!

$ java -jar rabbitfy.jar -i mona.jpg -r -c 10 -o mona.tex

:)

@PauloCereda yes, please!

@PauloCereda Add it to IoT ;)

@PauloCereda Will support the Secret Plan clearly!!

@JosephWright ooh

hullo

quick question to the floor, based on these two old(er) questions:

1)

2)

a quick Google didn't yield anything conclusive yet

here goes:

In a corporate environment where some ~300 "Policies and Procedures" float around

@PauloCereda IT'S ART!

@Skillmon rabbit art <3

@PauloCereda Nah, duck art, just rabbit brush!

which are based on "rough" Word templates

which is uploaded into a "Policies"-portal

and there prepended with a one-pager of "author", "date", etc and the "published" as a PDF

I'm thinking of whether this could be done in TeX instead

...

@Skillmon <3

While on the one hand "serious development" ($$$) might make this possible on the other I'm a bit disappointed that apparently no such "commercial" solution appears to exist.

Our policies just aren't "pretty" and it bugs me to have to use Word.

@DavidCarlisle what didn't she like? If you had made a repo you could blame me ;-)

Any pointers to a "commercial" document management system / platform which uses TeX "under the hood" ?

(happy to post a full question, but am hesitant as the above two questions are similar - and quite ancient...)

@nuttyaboutnatty In the very broad sense you could call Overleaf exactly that, a commercial document management platform :D On a more serious note, I don't really get what you are asking for. If you've got a platform based on Word templates, you can of course switch to LaTeX templates but the usual problems arise: how to migrate old documents, full conversion vs. incremental progress etc.

So probably you should go the extra mile and ask a full-fledged question on the main site with some more details of what you are trying to achieve.

@UlrikeFischer she's so picky: she objected to the fact that the submitted zip file had no files newer than 1996 and matched the files already on ctan even though my upload form said it was 2021 version 1.3

@DavidCarlisle ;-)

@PauloCereda did you draw that yourself? who is the lady?

@DavidCarlisle some Italian lady, it seems :)

@PauloCereda she has an enigmatic smile, did you meet her in person?

@DavidCarlisle nope :)

@PauloCereda I'm objecting that name. I think it should be "rabbitify".

@DavidCarlisle ^^

@Skillmon oh

@PauloCereda Oh, ananas pizza.

Some very cool rabbit program created this:

\documentclass{standalone}

\usepackage{pxpic}

\begin{document}

\pxpicsetup{
  mode = px,
  colours = {a=[HTML]{B5B5B5},b=[HTML]{707070},c=[HTML]{909090},d=[HTML]{CFCFCF},e=[HTML]{515151},f=[HTML]{3A3A3A},g=[HTML]{F9F9F9}},
  size = 4pt
}

\pxpic {
{ddgggggggggggggggggggggggggggdddaaaaaaaaddddddddaaaaaaddddddddddddddddddddddddddggggddddddgggggggggggggggggggggggggggg}
{ddggggggggggggggggggggggggggddddaaaaaaaaddddddddaaaaaaddddddddddddddddddddddddddggggddddgggggggggggggggggggggggggggggg}
{ddggggggggggggggggggggggggddaaaaaaaaaaaaadddddddaaaaddddddddddddddddddddddddddddddddddddddddggggggggggg…

OMG

@JosephWright ^^

@samcarter_says_quack THIS IS IMPRESSIVE

@PauloCereda rabbitfy works great!

@samcarter_says_quack <3

@TeXnician thx; will do (eventually).

@samcarter_says_quack charming picture

@samcarter_says_quack twitter.com/hyxpk/status/1349748118590394369

@PauloCereda Ohh, a time capsular!

@DavidCarlisle the main advantage is that reducing the number of colours won't be noticed :)

We are now officially in strict lockdown

@PauloCereda Oh my: what are the rules for you?

@JosephWright I am forbidden to leave the house

@PauloCereda There's 'forbidden' and 'forbidden' is what I meant; when China went for lockdown, they were not allowing people to go out even to buy food. On the other hand, here we are allowed out for various reasons, not just buying food but also going to work if it can't be done from home, etc.

@JosephWright Ah I see, sorry. :) We can go to stores, but only one per family, and the quicker the better. You are discouraged to go in person, delivery is recommended.

@PauloCereda Ah, so stricter than here

@JosephWright oh my

@PauloCereda Huh? I thought Bolsonaro says it's a hoax?

@StephanLehmke Oh this is a city lockdown, now a federal one. :)

@samcarter_says_quack this shows how slow pxpic is... :)

@PauloCereda Now just add automatic symbol selection so that the asciiart gray density is similar to the image one... ;-P (joking)

@Rmano ooh features

@PauloCereda it's still not on IoT :(

@Skillmon oh

@Skillmon duck mail

@PauloCereda since this rhymes with a specific cartoon series for kids, I got an earworm.

@Skillmon ooh

@Skillmon ooh ooh

^^ see what I did here

@PauloCereda :)

@JosephWright twitter.com/Thunderbirds65/status/1348212666314203139

OMG I MISSED THE RUBBER DUCK DAY YESTERDAY

That's a quite small boat:

@UlrikeFischer ooh

@JosephWright the xetex backend has \int_new:N \g__color_backend_stack_int and then \int_set:Nn \l__color_backend_stack_int ??

@Skillmon If one normally plays with beamer and/or tikz, everything else feels like lightning :)

@UlrikeFischer Oops: I should fix that

@JosephWright I would have done it, but it was a bit unclear which one you want (the pdftex driver has a local int).

I have several lines of code that I'd like to paste into a single slide on a beamer. Is there a way to make it fit into a single slide with some clever manipulation, so that a viewer can still copy from the slide?

Roughly 60 lines.

@StephanLehmke Thanks for the advice.

By the way, upon suddenly compiling my document in overleaf I got the following error message, despite having removed all the changes I recently implemented, that is, when it was compiling alright.

The file is output.nav, line 1

@schn File seems to be corrupted. A bunch of zeroes at the beginning????

@StephanLehmke You mean in my tex file? There are no zeros at the beginning. It is very strange. I just started on the slide with my code and using the mint package, and it worked alright. However, even if I remove the slides it is still there. I have tried to undo everything before I started with the code slide, but it doesn't seem to work.

@schn try to delete the auxiliary files.

@UlrikeFischer I have a tex and a sty file. Are any of these the aux file?

@schn the file you show is all zero bytes, ascii NULL (shown as ^^@) you see that occasionally with texstudio on windows but on overleaf??

@schn not the tex!! everything you didn't write .aux, .bbl, .log etc, Overleaf has a menu option to delete them all at once

@schn in this case the output.nav file is the one causing problems

@DavidCarlisle But then will the tex file compile if I delete all the other files?

@schn yes (and it won't if you don't)

@DavidCarlisle How do I restore the deleted files?

@schn just run latex as normal

@DavidCarlisle How do you mean? :)

Is there a button to restore them all? :)

I have a couple of images, a sty file, another tex file,...

readme.md, .bib

@schn none of the files that you crete or upload are involved here. we are talking about files that tex writes so .aux .nav, .log etc If they get corrupted simply delete them and tex will write them again next time.

Aha, getting warmer

@schn ^^^^

@DavidCarlisle Awesome! Was just about to ask. Lets see...

@DavidCarlisle Worked gallantly! Thank you! Also, @UlrikeFischer . Have a presentation tomorrow, file is huge since I'm a beginner at this, life can continue.

@schn we should charge @yo' for Overleaf tex support rates:-)

@schn I don't suppose you know what you did to trash the .nav file do you? that isn't supposed to happen, if it is repeatable there may be some issue to fix. (but do your presentation first rather than worry about that:-)

@DavidCarlisle Yes. I got the error message after I had put \only<some_number>{} before different \begin{minted} environements.

@schn as I say at some point a repeatable example might be interesting, basically the only way to fill a file with NULL is a system level filesystem corruption so you really shouldn't be able to do that in a repeatable way.

@DavidCarlisle So this is a very unique error?

@schn tex can not write a NULL the only way you can get that is to crash some application while it has the file open and trash the file itself. So something bad happened. You can delete the bad file and pretend it didn't happen and you were just unlucky and a cosmic ray was passing through overleaf's server at the time. But if it is repeatable that is somewhat unlikely....

@schn in particular if it is just the nav file it isn't an issue but if it had been your thesis and three years work that you had not backed up it would be gone with no way to recover. (texstudio seems to do this occasionally, which is why I was surprised you said it was happening on overleaf) tex.stackexchange.com/questions/495542/thesis-turned-null?

@DavidCarlisle I'll come back if it happens again :)

@DavidCarlisle I download the source file from time to time as a backup.

@schn "you" here meant generic person who has thesis corrupted, not necessarily actually you:-)

@DavidCarlisle Of course. By the way, is there a way to put \only{} before the \begin{minted} environement? I'd like to make different codes on a slide appear on different slides? Putting it before and after \begin{minted} doesn't seem to work.

@schn I know nothing:-) @samcarter_says dinner may know more. I'd expect \only<2>{\inputminted{file-to-display}} would work, doesn't it?

@DavidCarlisle it should. Otherwise, try with [fragile] option to the frame @schn

@Rmano I get Runaway argument error.

\documentclass{beamer}
\usepackage{minted}
\begin{document}

\begin{frame}[fragile]{Code}
  \begin{columns}[T]
    \begin{column}{.5\textwidth}
    \only<1>{
     \begin{minted}[fontsize=\tiny]{python}
        import numpy as np

        \end{minted}
        }
        \only<2>{
     \begin{minted}[fontsize=\tiny]{python}
        import numpy as np

        \end{minted}
        }
    \end{column}
    \begin{column}{.5\textwidth}

    \end{column}
  \end{columns}
\end{frame}

\end{document}

@schn that's why I suggested the inputminted form

@schn unrelated to beamer or minted you can not have verbatim environments (including minted) in the argument of a command.

@schn can't check now (time to sleep)... @samcarter_says_quack is the resident beamer guru here.

Alright.

@schn something like

\begin{filecontents}{py1.txt}
        import numpy as np

        \end{minted}
\end{filecontents}
\begin{filecontents}{py2.txt}
        import numpy as np
\end{filecontents}
\documentclass{beamer}
\usepackage{minted}
\begin{document}

\begin{frame}[fragile]{Code}
  \begin{columns}[T]
    \begin{column}{.5\textwidth}
    \only<1>{\inputminted[fontsize=\tiny]{python}{py1.txt}}
    \only<2>{\inputminted[fontsize=\tiny]{python}{py2.txt}}
    \end{column}
    \begin{column}{.5\textwidth}

    \end{column}

@DavidCarlisle I had this once in a project on overleaf, the aux-file got corrupted after a failed compilation and then we saw this ^^@. But it was only the auxiliary files.

@DavidCarlisle oh no!

Btw, a change in the logs UI is to be rolled out soon to Beta users. It's great (and it makes both the errors and the cache more prominent!)

@yo' chat.stackexchange.com/search?q=ooh&user=6485&room=41

@DavidCarlisle haha. If you wanted to see it, lemme know, I can drag you in Alpha :)

@yo' sort of interested but I can't promise any time, I have a large stack of tex related jobs not done (anyone mention jadetex, or longtable...) so adding more is perhaps not wise

@UlrikeFischer I tried again with pslatex

@DavidCarlisle ok :) If you wanted, just ping me ;) (this is true for any TeXperts I think, we don't realase to Beta yet because we need a release plan for that, but couple people is definitely fine :) )

@schn what @DavidCarlisle said or use onlyenv environment

% !TeX program = txs:///arara
% arara: pdflatex: {synctex: on, interaction: nonstopmode, shell: yes}


\documentclass{beamer}
\usepackage{minted}
\begin{document}

\begin{frame}[fragile]
  \frametitle{Code}
  \begin{columns}[T,onlytextwidth]
    \begin{column}{.45\textwidth}
    \begin{onlyenv}<1>
     \begin{minted}[fontsize=\tiny]{python}
        import numpy as np

        \end{minted}
    \end{onlyenv}
    \begin{onlyenv}<2>
     \begin{minted}[fontsize=\tiny]{python}
        import numpy as np

@yo' That's great news!

@DavidCarlisle never ever give up

@samcarter_says_quack unfair advantage, knowing something about beamer

@DavidCarlisle @samcarter_says_quack but @schn uses overleaf, does minted work there?

@UlrikeFischer yes (they run with shell escape always)

@DavidCarlisle interesting, I thought they disabled it.

@samcarter_says_quack Thanks for the suggestion, also @DavidCarlisle

@DavidCarlisle you saw that they corrected already the startlink bug?

@UlrikeFischer no I only follow that list on the archive (not sure why I never subscribed:-)

@UlrikeFischer so fixed in tl2021 then:-)

@UlrikeFischer I saw the commit for that on the github mirror, but I didn't get the mail (and I'm subscribed to the luatex at tug.org list)

@UlrikeFischer Is there another list?

@PhelypeOleinik that is on luatex development list <dev-luatex@ntg.nl>

@PhelypeOleinik which github mirror?

@UlrikeFischer ooh, I didn't knew that one

@UlrikeFischer github.com/TeX-Live/luatex

@DavidCarlisle I tested it now and the link in the picture behaves again ;-)

@UlrikeFischer w32 tex updated already?

@DavidCarlisle yes, at least luatex-exp, luatex and luatex-dev lag a day behind so probably don't have it yet.

@UlrikeFischer there was a time I was compiling from source every other day myself but haven't for a while now.