TeX, LaTeX and Friends

Peter Grill

12:01 AM

@DavidCarlisle Took me a while to figure it out. :-)

I have been trying to digest your answer at tex.stackexchange.com/questions/66118/…

hpesoj626

Good morning to all

David Carlisle

@PeterGrill ohh midnight race on again:-)

Peter Grill

Huh?

Oh, It is almost midnight for you....

percusse

@hpesoj626 Hi, come join me. I'm watching David and Peter racing to the rep cap.

David Carlisle

@PeterGrill 4 min past

Peter Grill

12:04 AM

@percusse :-)

percusse

1:04 here

hpesoj626

@DavidCarlisle I know you would be able to see this tex.stackexchange.com/questions/82374/tabular-multicols-noalign/…. But then again I told myself David needs a little boost in the race :)

percusse

sorry 1:04 AM :P

hpesoj626

@percusse 8:05 a.m. here

Peter Grill

Well I would have gotten a table answer from David earlier, but dammm hhline required for colortbl which I did not know about.

By the time I got it to work, David already posted...

David Carlisle

12:05 AM

@hpesoj626 :-)

hpesoj626

@PeterGrill Heh. Focus on tikz. David will definitely beat anyone in a table question. :)

percusse

@PeterGrill But he will never reach the rep cap since he has to first reach 100 and ad infinitum.

Peter Grill

@hpesoj626 Yeah, but that was what made it more thrillling, but sadly I failed this time...

@percusse Huh? Missing something there.

egreg

@PeterGrill Zeno's paradox

percusse

@PeterGrill No offense :P

hpesoj626

12:07 AM

I will look at the reps later. I have to go proctor a test.

percusse

Zeno's paradoxes

Zeno's paradoxes are a set of philosophical problems generally thought to have been devised by Greek philosopher Zeno of Elea (ca. 490–430 BC) to support Parmenides's doctrine that "all is one" and that, contrary to the evidence of one's senses, the belief in plurality and change is mistaken, and in particular that motion is nothing but an illusion. It is usually assumed, based on Plato's Parmenides 128c-d, that Zeno took on the project of creating these paradoxes because other philosophers had created paradoxes against Parmenides's view. Thus Zeno can be interpreted as saying that to...

look for the achilles and ...ehm.... peter grill

egreg

@percusse So I'm safe with them: they still have to cover half way. :)

percusse

@egreg :-) Yeah we forgot you at the top...

percusse

12:22 AM

@DavidCarlisle Is there anyway to get the column widths of a tabular with say, dcolumn, tabulary etc. ? The context is this tex.stackexchange.com/questions/78938/… (See the linked SO question) If I can do that then I can place the tabular inside a tikzpicture and draw arbitrarily.

David Carlisle

@percusse well longtable Tabularx and tabualary all measure the widths, but in general in a normal tabular, ni, th ebasic technique is to add an extra last row with a cell in every column (so you know ther eare no multicolumn) and the take it of with \lastbox then unhbox it and see how many boxes are inside by doing \lastbox until there is nothing left. but...

If you are using tikz probably an easier way is just to get tiks to remember where each column starts by sticking a tikzmark or similar there... Now I'd better look what the question was:-)

Stephan Lehmke

@DavidCarlisle To hear you say that's the easier way...

David Carlisle

@StephanLehmke It's much easier for me as I'm going to bed and don't need to do it

percusse

@DavidCarlisle Hahah, thanks though and good night

David Carlisle

@StephanLehmke Now I'm really tempted, while @percusse is coding up the tikz version to slip in a quick picture mode solutution...

percusse

12:31 AM

@DavidCarlisle Hey if the cavalary is on the way. I'll hang in there until I'm out of whiskey.

David Carlisle

@percusse nah I'm off. Night all.

percusse

@DavidCarlisle Good night.

Paulo Cereda

@DavidCarlisle Good night, David. :)

Peter Grill

@percusse I'd use collcell to automatically insert a \tikzmark in between columns. Perhaps a dummy row with a left aligned \multicolumn and a`r`ight aligned to know the start and end point of the column.

I haven't done it so not sure what complications will arise.

tex.stackexchange.com/questions/82502/… needs deleting

percusse

@PeterGrill Would you like to do it ? I'm better off without \tikzmark. In a totally wicked way I don't like compiling twice though usually the results are amazing.

Peter Grill

12:41 AM

@percusse I can't right now, so you go ahead.

percusse

It's really completely psychological

Ok I'll see what I can do :)

Stephan Lehmke

@DavidCarlisle Easiest is of course DocScape: Just declare the angle in the specification of the table cell :-)

Peter Grill

@percusse Wait, did I read that right!! A gold tkz-pgf badge member saying something is better off without \tikzmark?? That's blasphemy!!

@StephanLehmke :-)

Stephan Lehmke

@PeterGrill You can be in complete tikzmark heaven until you start doing things with tikzmark which can influence space consumption of document elements ;-)

Peter Grill

@StephanLehmke Yeah, sometimes it gets tricky.

percusse

12:51 AM

@StephanLehmke It's a beautiful piece of software.

@PeterGrill It's like a peanut allergy. There is no proper explanation :)

But I'm using it behind closed doors washing my hand before and afterwards.

Stephan Lehmke

@percusse If we only could get the object coordinates without \shipout (say, local to a box)!

One would imagine that to be a really minor modification of pdftex (or maybe LuaTeX?)

percusse

@StephanLehmke But if that was possible then tikzmark won't need two runs too. Am I right?

Stephan Lehmke

@percusse Exactly. You could build something in a box and then immediately add the tikzmark stuff on top of it (or add stuff on top of \@cclv at \output time).

@percusse In addition, the (inherently two-stage) tikzmark workflow could be much more dynamic.

percusse

@StephanLehmke Only if there was a way. It's way beyond my basic understanding of TeX. Maybe if one can force to pass once again before shipout ......

Oh image placement across pages would be fantastic if that was possible.

Stephan Lehmke

1:07 AM

@percusse With the current (pdftex) engine there is none. An addition like a "hypothetical shipout" (that is, retrieving the coordinates without actually outputting a page) was mentioned as the top-priority pdftex extension by Hans Hagen on EuroTeX 2005 IIRC. ConTeXt is also doing a lot of graphical stuff (using MetaPost) based on object coordinates, so it always depends on doing two runs. Maybe this actually got into LuaTeX...

@percusse Not sure what you mean by this.

percusse

@StephanLehmke I meant what you expressed more clearly by hypothetical shipout. That would bloat the initial run instead of the second run in terms of the required memory I guess.

Stephan Lehmke

@percusse Well the main advantage would be that you can have stuff which really takes up space without getting into convergence (in the sense of fixed-point) issues. At the moment tikzmark applications are mostly insubstantial decorations of the page so that you don't need unlimited runs for the document to stabilize.

percusse

@StephanLehmke but for an hypothetical shipout you need to keep more things in the memory like the coordinates etc.

I'm not sure but you can get into the same trouble. Though thinking again you don't need to memorize the points anymore since they would be available directly for drawing.

Stephan Lehmke

@percusse That's really insignificant isn't it? Have you ever taken a look inside pgfmath or other computationally expensive PGF stuff? In comparison to the amount of resources needed to make even the simplest drawing in TikZ, everything else you could imagine is really dwarfed.

There is a reason any "pure TeX" solution (if it exists) is hundreds of times faster than any TikZ solution.

percusse

@StephanLehmke Indeed. I tend to forget how resource greedy TikZ is.

hpesoj626

1:26 AM

@PeterGrill tight race. David up by only 15 reps

Peter Grill

@hpesoj626 Well that is just for the day. I knew I should not have let him get ahead of me int eh first place!! :-)

hpesoj626

@PeterGrill Well, there's no fun if there's no challenge

Peter Grill

@hpesoj626 Yep. Ok, I will use that as an excuse to explain how I let David get ahead. :-)

hpesoj626

@PeterGrill I will not worry too much if I were you. There are a lot more tikz questions than table questions. Although there are more tikz answerers than table answerers too ;)

Peter Grill

@hpesoj626 Yep, as long as I can continue to make him think that reading documentation is evil.

Stephan Lehmke

1:34 AM

@PeterGrill Unfortunately he can get by just answering questions about stuff he wrote himself ;-)

Peter Grill

@StephanLehmke Yeah, that is good enough reason for me to make a package. Now just have to find something useful to make a package of. :-)

hpesoj626

@StephanLehmke ...and he doesn't have to think about it much.

Stephan Lehmke

@PeterGrill You could make a package for interactive animated PDF graphics with TikZ. That could get really popular I guess :-)

Peter Grill

@StephanLehmke Yeah, but sounds like a lot of work. I need to find something as trivial as making a package that makes a table. :-)

hpesoj626

@PeterGrill I will take Stephan's advise if I were you. Garbage Collector might beat you to it.

Peter Grill

1:39 AM

@hpesoj626 Well, GarbageCollector is much better than I at animations, so can't really compete there

Stephan Lehmke

@PeterGrill This is, erm, slightly unjust towards David...

Peter Grill

@StephanLehmke I am sure David knows that I was serious. :-)

Stephan Lehmke

@PeterGrill Still I'm afraid your master plan of world (AKA TeX.SX) domination without work is fundamentally flawed ;-)

Peter Grill

@StephanLehmke Ok, back to the drawing board then... there must be a way...

Stephan Lehmke

@PeterGrill You could start making packages from all the code from David's answers here. It's CC-something license anyway, so no problem there...

Peter Grill

1:46 AM

Hmmm, but still sounds like work...

Speravir

@hpesoj626: Didn’t you get a notification for tex.stackexchange.com/questions/82336/… ?

hpesoj626

@Speravir Hi there. I did. I wonder what's happening there. But sure, post another answer. It might be of help to users with the same problem.

Speravir

@hpesoj626 But I can only go on, if the issue with \FancyHook is resolved. Nowhere in your example, in fancytooltips.sty and fancy-preview I can find a definition of it.

Stephan Lehmke

@Speravir The current dtx contains the description of an option:

%   \iitem{preview} Redefines |\ref|, |\eqref| and |\cite| commands to
%   work with tooltips extracted by |fancy-preview|, see Section
%   \ref{sec:fancy-preview} and demo files in |example/fancy-preview|
%   directory. The tooltip is inserted only if the target of the
%   reference is on different PDF page as the tooltip. This option is
%   suitable for presentations where the whole PDF page is
%   visible. Replaces former |\FancyHook| command.

So it seems with the current version you need to give the preview package option.

Speravir

2:02 AM

@StephanLehmke Thanks. And now I see it in the documentation as well. Why not earlier??? Did you read this @hpesoj626 too?

hpesoj626

@Speravir Hmmm... I have update my answer. I missed putting \begin{frame}...\end{frame} in there. Try it. :)

@Speravir I did not read the .dtx. Although the definition of \FancyHook is found in page 8 of the fancytooltips manual.

Speravir

@hpesoj626 Not here. version 1.2 2012/06/12

hpesoj626

@Speravir I am using 2010/06/10 v1.8 How can an update version have lower version number? Let me check that again.

Speravir

@hpesoj626 Ask a TeX Live user like @StephanLehmke. Which TL version do you have? Wasn't there a freeze of old versions?

user19161

@Speravir TL latest stable is 2012 of course.

Speravir

2:12 AM

@WillHunting Who asked YOU??ßß ;-)

hpesoj626

@Speravir I am using the TL 2012 stable version. Have to download the .iso as interconnectivity in my area is not that good.

user19161

@Speravir What is that beta beta?

Stephan Lehmke

@Speravir I looked on CTAN, but indeed the version in my TL is the same.

I frequently tell tlmgr to update everything.

Speravir

@StephanLehmke That’s very strange, indeed: In my TeXLive portable I have version 1.2. Last TL update was some days ago.

Stephan Lehmke

@Speravir I meant the same as yours.

hpesoj626

2:15 AM

@Speravir The updated version is 1.12 ;)

Speravir

@StephanLehmke Aah.

user19161

By the way I now like to install TL from the DVD and I don't update it at all.

percusse

@WillHunting Double Rayßans I guess.

hpesoj626

@Speravir And I verify that the definition of \fancyhook is nowhere to be found in the .dtx in the updated version. Only that cited by @Stephan

Stephan Lehmke

@percusse It's german sharp s which is below ? on the (german) keyboard.

hpesoj626

2:18 AM

@WillHunting Same thing I do. If I want the updated version, I just download it

percusse

@StephanLehmke just a teaser :)

Speravir

@hpesoj626 Then remove \FancyHook or comment it out, add the package option preview, and make a remark. Now I can turn on to the next problem, but not now.

user19161

@hpesoj626 I burn the DVD myself. =)

Stephan Lehmke

@Speravir Classical Oxymoron.

percusse

I am quite surprised that we don't get any Facebook twitter etc related questions. I still have hope in humanity.

3

user19161

2:20 AM

@StephanLehmke I never heard of "oxymoron" until I joined Eng SE.

user19161

I only know that "Oxy" is the brand of my favourite pimple cream when I was a teen.

hpesoj626

@Speravir I will test it first with version 1.12. Will work on it now.

percusse

For me this is what oxymoron is :)

Speravir

@StephanLehmke Now and now, here and here. ;-)

Stephan Lehmke

@WillHunting It's in the film "Mr. Bill" I think ;-)

user19161

2:23 AM

@percusse That looks pretty real...

percusse

@WillHunting and oxy too

Speravir

@WillHunting This comes from my German keyboard layout and these are not Greek Betas, but the special German “Eszett”, as it is mostly called:

en.wikipedia.org/wiki/%C3%9F

user19161

@Speravir Ah, the thing in Gauss's name!

Speravir

@WillHunting Exactly. And hence it it “Gauß". :-)

Stephan Lehmke

►

7:44

Speravir

2:29 AM

@WillHunting To continue: The question mark on the German keyboard layout you get with <SHIFT> + ß. And it it was a try to make fun above with this “???ßßß”. More often you will find “!!!11”.

Speravir

2:40 AM

@percusse LOL, and starred! But I guess you actually know, where it comes from!?

hpesoj626

@Speravir I can verify that the code breaks with bash fancy-preview myfile but gets compiled with perl fancy-preview myfile with version 1.12

@Speravir and there is no need for the \FileHook command that is required in version 1.8

I will modify my answer to account for these

Speravir

@hpesoj626 With \Fancyhook? That’s really strange!

hpesoj626

@Speravir yeah. \FancyHook Sorry

Speravir

@hpesoj626 So I can deal with the MiKTeX problems, then.

hpesoj626

@Speravir I think so. And as @StephanLehmke quoted from the manual earlier, preview option replaces \FancyHook.

Speravir

3:08 AM

@hpesoj626 Compilation went fine.

hpesoj626

@Speravir with bash? or with perl?

Speravir

@hpesoj626 Perl. No bash in Windows.

percusse

@Speravir :) Yep

hpesoj626

@Speravir Oh yeah. Forgot about that. I have updated my answer.

Ed Gorcenski

3:28 AM

Good evening

Anyone have a moment to help with a gnuplot in latex question?

Faheem Mitha

5:21 AM

@PeterGrill Ok, but in any case, the first image now does not correspond to the code. If I understand correctly, what you want is a version without the arrows, so what you could do is take the code, comment out the arrows code, and generate a version without the arrows. BTW, what do you use for cropping and resizing the PDFs, assuming it runs on Linux?

Peter Grill

@FaheemMitha Well it does correspond to the code snippet right above it. I use a Mac and captrue the image right off the screen.

Faheem Mitha

@PeterGrill Blimey. I didn't see you had more snippets of code there. That's only one row, though. I should have changed that too, but missed it.

Peter Grill

@FaheemMitha I'd say we leave that as is.

Faheem Mitha

@percusse So, this is a case of incorrect user syntax? I guess I don't really understand TikZ syntax (sigh). Thanks for the analysis. I'll study it, and hopefully understand things better.

@PeterGrill Ok.

hpesoj626

7:44 AM

@PeterGrill Still around?

Peter Grill

yep..

hpesoj626

tex.stackexchange.com/questions/82522/…

Peter Grill

@hpesoj626 You don't like the scale solution.

hpesoj626

@PeterGrill Nope. The OP's question is not very clear

It seems like it is a multi-part question

Peter Grill

@hpesoj626 Yeah, that sort of what I mentioned that the title is not really reflecting the question.

hpesoj626

7:47 AM

One of the questions is

"Given two nodes (a) and (b), I would like to draw an elliptical arc from (a) to (b) whose major axis is the segment connecting (a) and (b) (the minor axis can be some arbitrary length). "

It could be a separate question.

Peter Grill

@hpesoj626 that has almost nothing to do with the question -- it is not a 2d issue.

hpesoj626

Yeah. Although I tried to work at it since I had a similar problem way back 2 months ago but did not post here.

Before OP even posted the MWE

Peter Grill

@hpesoj626 Oh, perhaps you should post an answer to that part.

hpesoj626

@PeterGrill I don't think it is a good one though. I borrowed the \gettikzxy that Andrew Stacey wrote here: tex.stackexchange.com/questions/33703/…

Here is what I tried.

\documentclass[tikz]{standalone}

\usetikzlibrary{calc}

\makeatletter
\newcommand{\gettikzxy}[3]{%
\tikz@scan@one@point\pgfutil@firstofone#1\relax
\edef#2{\the\pgf@x}%
\edef#3{\the\pgf@y}%
}
\makeatother
\begin{document}
\begin{tikzpicture}
\draw (0,0) grid (3,3);
\coordinate (a) at (0,0);
\coordinate (b) at (3,3);
\coordinate (c) at ($(a)!.5!(b)$);
\coordinate (d) at ($ (c)!0.75cm!90:(b)$);
\gettikzxy{(b)}{\bx}{\by}
\gettikzxy{(c)}{\cx}{\cy}
\gettikzxy{(d)}{\dx}{\dy}
\pgfmathsetmacro{\Min}{\dx-\cx}%

egreg

@percusse The racers seem not to be so fast. By the way, I've got 230. :P

Peter Grill

7:53 AM

@hpesoj626 Seems to work pretty well. I'd remove the hard coded numbers so that one can easily change the coordinate and see that it still works -- sure seems to.

@egreg Yeah, well got busy with other things. You already have 245?? Wow!!

And the day is just beginning for you.

hpesoj626

@PeterGrill what I think is that one can just change the coordinates of a and b and the rest follows. One can set b to say (rnd,rnd) but will have to manually adjust the sign for Min and Max within a minute ;)

Peter Grill

@hpesoj626 Well, no, the grid needs adjusting as well...

hpesoj626

@PeterGrill I'll just adjust the grid to (-3,-3) grid (3,3). It was just placed there for reference. Same thing with the labels. What do you think?

Peter Grill

@hpesoj626 Sure that is fine. It does draw the ellipse as per the question, but I am not sure that is what the OP is really looking for (based on the image he posted).

hpesoj626

@PeterGrill Yeah. Looks like.

J G

8:12 AM

@JosephWright AlexG answered!

@JosephWright Is my question about the cover slide clear? Do you know if it is possible to add material like that to the cover slide?

hpesoj626

@PeterGrill I'll just try an answer based from the code I showed you. Let's see what OP says. The code doesn't look pretty though and I might write a tutorial just to explain what I did. :)

Peter Grill

@hpesoj626 That would be usefule.

hpesoj626

8:45 AM

@PeterGrill Done. Please don't laugh at it.

Peter Grill

@hpesoj626 Huh?Why would I laugh at it. Am jkust looking at it now...

@hpesoj626 Looks great, Am afraid now that I will loose a green tick and get further behind David. :-) Good work.

hpesoj626

@PeterGrill That was not my intention. But I wouldn't be able to sleep without doing it. Hehe. Anyway, looks like you are ahead now by 55 reps.

@PeterGrill Oh! You answered a table question tex.stackexchange.com/questions/82528/…

Paulo Cereda

Morning! :)

Peter Grill

9:01 AM

@hpesoj626 Yeah, that will be a nice surprise for David.

@PauloCereda Good morning to you, and good night form me...

hpesoj626

@PauloCereda What time is it there? David and Peter are at it again. Good afternoon. It is 5:01 p.m. here.

Paulo Cereda

@PeterGrill Oh my, I forgot about timezones!

@hpesoj626 7:03AM now. And a lovely breakfast. :)

I think Peter's time is even earlier, probably 1AM or so.

Peter Grill

@hpesoj626 I was just kidding, the better solution should get it.

@PauloCereda Yep, 1:00AM it is...

hpesoj626

@PauloCereda What makes a good breakfast in Brazil? In Philippines, it is tomato salad, dried fish, egg and coffee.

Paulo Cereda

@PeterGrill Oh my, I can only stand until 10:30PM. After that, I get very sleepy.

Peter Grill

9:06 AM

@PauloCereda I am a night owl. Was up to 4:00AM yesterday, but trying to get back to a bit more regular schedule...

hpesoj626

@PeterGrill Yeah. I know that you must give David a wide berth. Well, good luck to you both. I have to go now. Bye all!

Paulo Cereda

@hpesoj626 I'd go with some coffee and milk, orange juice, bread with butter, and fruits like apple or papaya. :) But I usually drink a glass of coffee and milk. :)

@hpesoj626 See ya, buddy! :)

@PeterGrill I usually try to wake up earlier. In the past, I used to wake up around 3:30AM and get ready to work. :)

Yay, @topskip! :)

topskip

@PauloCereda :) My working world is totally crazy at the moment. I have so much to do, and gladly mostly paid work.

But I am also full of energy, so that matches perfectly

Paulo Cereda

If somebody is interested to learn a few Vim tricks, this text is very good: jackkinsella.ie/2011/09/05/textmate-to-vim.html :)

topskip

@PauloCereda The best vim trick that I know is ESC :q! Return

Paulo Cereda

9:11 AM

@topskip Same here, my TODO list is a monster. :)

@topskip Oh no! <3

topskip

@PauloCereda ... It's called "leave VI hell immediately" :)

Paulo Cereda

Jul 28 '11 at 12:00, by Paulo Cereda

@egreg hehe. I love this joke: Q: How to generate a random string? A: Put a fresh student in front of vi and tell him to quit.

8

@topskip LOL

topskip

@PauloCereda That's great, really.

J G

@percusse Do you mean about LaTeXing into your twitter? Like typesetting equations into twitter! That'd be so cool

David Carlisle

@topskip are there any other commands in vi(m) ?

topskip

9:19 AM

@DavidCarlisle Yes. I have a vi-mug and there are more commands on it, but I don't know anything about them

(Actually I have used 'i', 'a','r' and 'x' in vi, but that's about it)

Paulo Cereda

@percusse I'm gonna open a feature request for biblatex to include a social bibliography, \usepackage[social=facebook]{biblatex}: i.stack.imgur.com/Cy1xr.jpg

5

@DavidCarlisle yyp I use that a lot. :P

J G

Does anybody know if it is possible to add material to edit the cover slide of beamer in anyway? By the cover slide, I mean the slide where you put the title, author, etc ...

David Carlisle

@topskip If it's anything like the way the editor works the handle will be on upside down and all the coffee will spill.

topskip

@DavidCarlisle thats why I never use vi and the mug :)

Shashank Sawant

Does anyone know how to increase the thickness of the TikZ vector?

For example `\draw [->] (0.1,0.1) -- (0.1,0.2);

*For example `\draw [->] (0.1,0.1) -- (0.1,0.2);'

*For example \draw [->] (0.1,0.1) -- (0.1,0.2);

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$TeX - LaTeX$ TeX, LaTeX and Friends