[HN Gopher] Add coffee stains to LaTeX documents (2021)
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Add coffee stains to LaTeX documents (2021)
Author : todsacerdoti
Score : 381 points
Date : 2024-02-09 16:05 UTC (6 hours ago)
(HTM) web link (ctan.org)
(TXT) w3m dump (ctan.org)
| jjgreen wrote:
| (2009) http://legacy.hanno-rein.de/hanno-rein.de/archives/349
| dpflan wrote:
| View an example here: https://ctan.math.utah.edu/ctan/tex-
| archive/graphics/pgf/con...
|
| Maybe the hue is off, or its a different roast or beans, feels
| less coffee, more science murder mystery?
| spookie wrote:
| Probably replicating when you scan the paper
| robinsonb5 wrote:
| Maybe CMYK colour with no associated profile?
| tantalor wrote:
| Thanks for linking to that. Really confused why the ctan pages
| don't.
| Tijdreiziger wrote:
| They do, it's the 'English documentation' link.
| zeekaran wrote:
| Aw, these don't look nearly as good as I hoped.
| elevaet wrote:
| > This page was intentionally left blank but we had to ruin it
| by letting you know.
|
| Brilliant!
| chanandler_bong wrote:
| This page intentionally left blank. (Well, not
| completely blank, since the above non-empty disclaimer
| appears on the page. What is meant is that this page is
| devoid of meaningful content related to the rest of the
| document. This page serves only as a separator between
| sections, chapters, or other divisions of the document.
| This page is not completely blank so that you know that
| nothing was unintentionally left out, or that the page
| is not blank because of an error in duplication, or
| that the page is not blank because of some other production
| problem. If this page were really blank, you wouldn't be
| reading anything. This page has not been left blank by
| accident, but is left non-blank on purpose. The
| statement on the page should say "This page
| was intentionally left non-blank".)
|
| http://www.tytempleton.com/rhf/jokes/93q1/nonblank.html
| JohnFen wrote:
| My favorite was with two sides of a blank page in a
| document. One side read "This page is intentionally left
| blank", and the other side read "This page isn't."
| kqr wrote:
| I always liked the self-contradictory nature of "This
| page was unintentionally left blank."
| cwillu wrote:
| Plot twist: the printer accidentally added the [non-]blank
| page.
| micromacrofoot wrote:
| yeah the color if off and you can see that it's obviously a
| vector graphic... it's kind of posterized
| wayvey wrote:
| I wonder if blurring the edges of the shapes within the stain
| might help make it look more organic
| codetrotter wrote:
| First few stains look a bit poopy. And last one a bit murdery.
| None of them look very covfefe.
| fcoury wrote:
| Agreed, I was expecting something a bit more like this:
|
| https://geekhack.org/index.php?action=dlattach;topic=102580..
| ..
| guax wrote:
| Nice keeb
| FirmwareBurner wrote:
| What keyboard is that?
| graphe wrote:
| If you're looking for the game ending keyboard you need
| this one.
| https://www.aliexpress.com/i/3256803782645256.html
|
| Any mechanical switch, on its own key mount moved on a
| split or single magnetic board. I suggest split.
| FirmwareBurner wrote:
| That looks amazeballs. What I wanted my whole life.
|
| Is it good though or is it impulse buy ewaste that just
| looks cool?
| graphe wrote:
| It is very good. USB-C as well. Here's some English
| marketing https://www.velocifiretech.com/products/dumang-
| dk6-ergo-v2
|
| The magnets are not weak and do not dislodge easily. I do
| not care about any keyboards unless it's better than this
| one. If anyone knows a better one let me know! I think
| they said they're working on a mouse or something like
| other input options a while ago, but I haven't heard of
| anything new but I haven't checked either.
| FirmwareBurner wrote:
| Thanks. Can you also tilt the halves like a tent for
| ergonomics?
| graphe wrote:
| I have them mounted to a chair I'm not by but I think so.
| Having a hot swappable keyboard I have them on the arms
| in a tilt specific to me. I was looking for an American
| clone but nobody makes anything this cool.
| https://dygma.com/pages/defy This one isn't magnetic but
| it's wireless and it has a mouse on it. I love the
| magnetic and the tactile feeling as well as the ability
| to mix and match keys and switches on the fly.
|
| I'm not sure what the next iteration would be for a
| keyboard but I hope to see more ergonomic ones mounted on
| chairs.
| entropicdrifter wrote:
| That page says the software is Windows-only. Is the
| software just for the setup? Or would this be impossible
| to use on Linux/Mac even after configuring it?
| bhasi wrote:
| Have you used the Microsoft Sculpt Ergonomic keyboard? I
| really like that, but it isn't mechanical.
| steve1977 wrote:
| That's the comment I expect on a site named Hacker News
| geph2021 wrote:
| very murdery! Never even seen coffee that color :)
| solardev wrote:
| Maybe the poor civet had bloody bowels that day :(
|
| https://en.wikipedia.org/wiki/Kopi_luwak
| for1nner wrote:
| This is the kind of discourse I seek out on HN. ty
| deleterofworlds wrote:
| hard to judge on a screen how they will look printed
| kqr wrote:
| This seems like the sort of thing that happens when one
| repeatedly tweaks while using the previous iteration as a
| reference. It might feel like most iterations improve on what
| came before, but before long one loses the connection to the
| original reference.
|
| I think Deming compared it to the telephone game.
| graphe wrote:
| The recent project of the darktable developer to ansel shows
| this happening in other open source projects too.
| wly_cdgr wrote:
| Stains need to be subtler/fainter, waterier, with grain specks
| generalizations wrote:
| Some of those are wine stains. The pkg does both.
| pavel_lishin wrote:
| > _A lot of time can be saved by printing stains directly on the
| page rather than adding them manually._
|
| Outstanding.
| cf100clunk wrote:
| Bestowing the ''golden ring of quality'' has now been
| automated.
| diego_sandoval wrote:
| When a measure becomes a target, it ceases to be a good
| measure.
| Something1234 wrote:
| Honestly if I got a resume featuring this I would immediately
| call them in for an interview it counts for massive bonus points.
| dylan604 wrote:
| would you lower the points awarded if they were not to scale?
| pahae wrote:
| I actually like their take on the vacat page [0] even more.
|
| 0: https://en.wikipedia.org/wiki/Intentionally_blank_page
| bluish29 wrote:
| Sometimes I exchange printed papers and documents with colleagues
| that have actual coffee stains. Would be interesting to have
| digital and physical stains at the same time. I will test that.
| Some will complain about the perfect shapes /s
| dheera wrote:
| Why aren't there mugs with hydrophobic coating on the bottom? It
| seems like this should be an easy problem to solve compared to
| all the petaflop GPU's and spacecraft we're building.
| jhardy54 wrote:
| How would a hydrophobic coating help?
| danbruc wrote:
| I can imagine two ways. First, on the very bottom, if you
| place the mug into a puddle of coffee, then no coffee will
| wet the bottom of the mug. Second, around the side, when
| coffee runs down the side of the mug, a hydrophobic coating
| might stop a drop in its path if it is not too heavy. Not
| sure if the second thing would actually work.
| netsharc wrote:
| The coating around the side should form a V, with the
| handle being the lowest point, and make a little
| indentation on the bottom of the inside of handle to
| collect all the liquid...
| 0x38B wrote:
| So make a GoreTex sleeve that waterproofs the bottom of
| your coffee mug?
| DannyB2 wrote:
| Because that is a hardware fix.
|
| Why fix in hardware what can be fixed in software? A simple
| Latex package could add hydrophobic coating feature to the
| document file.
|
| Next: the device driver team will be tasked with a software
| patch to correct for the burned out light bulb on the device.
| amlib wrote:
| Oh great, one more ink cartridge for printer manufactures to
| sell. And, of course, the printer will refuse to work if your
| hydrophobic coating cartridges is empty even tough all other
| cartridges are fine.
| zeekaran wrote:
| Normally, mugs are ceramic and thus the parts that had to touch
| the shelf in the kiln are unglazed.
|
| Maybe we just need to make pottery in 0G.
| nolongerthere wrote:
| Could you just suspend them on a cushion of air like indoor
| skydiving?
| sho_hn wrote:
| One of the primary motivations behind LK99 and other
| efforts to create room-temp superconductors is to fashion
| coffee mugs that harness the Meissner effect to levitate
| above journal print-outs.
| bruce343434 wrote:
| How do you "just" suspend a mug on a cushion of air?
| olddustytrail wrote:
| Maybe like indoor skydiving?
| samatman wrote:
| Obtaining the necessary laminar flow in the presence of the
| handle might be challenging.
| StableAlkyne wrote:
| Huh, TIL
|
| The bare ceramic on the bottom of the mug is of those things
| I've always noticed about coffee cups but never really
| thought about.
| pbhjpbhj wrote:
| Not all tableware is barefooted / dry-footed. You can use a
| stilt, which is a ceramic with sharp metal (eg Kanthal) pins
| on which the glazed ceramic is supported. Pieces fired this
| way have small marks on the bottom like the injection marks
| some moulded plastic has.
|
| Fully glazed ware is good for wet areas when the ceramic may
| not be entirely vitrified, as this prevents water from
| soaking into the ceramic body.
|
| Dry-footed ware that hasn't been high-fired will soak up
| moisture, eg when washing, and so cause problems - crazing,
| and getting very hot when used in a microwave oven (which can
| cause more crazing, but also burn your hand!
|
| Source: am potter.
|
| The foot ring on dry-footed mugs is a useful knife sharpener
| in a pinch.
| eric__cartman wrote:
| That's a very low tech solution. What we need is an internet
| connected mug that senses with a camera if it's about to be set
| on top of a piece of paper and starts beeping uncontrollably.
|
| With a firmware update and an additional charge to the customer
| a model for detecting polished wooden furniture could also be
| used.
| sho_hn wrote:
| It also needs a permanent internet connection, as the
| inference for the paper detection is run in the cloud, and a
| subscription to keep it working.
|
| I call it No-SaaS, No Stains as a Service.
| bee_rider wrote:
| Then how would we tell which papers have been read?
| nosrepa wrote:
| Aren't most hydrophobic coatings very toxic and wear easily?
| simcop2387 wrote:
| They tend to get destroyed when cleaning the items. It happens
| a lot with clothing that has hydrophobic coatings so I'd
| imagine a dishwasher would ruin it almost immediately, leading
| to complaints and returns.
| quijoteuniv wrote:
| What about green tea?
| DannyB2 wrote:
| Or Diet Coke.
| noud wrote:
| Or Mate?
| jokeneversoke wrote:
| or Monster?
| philomath_mn wrote:
| Some other great CTAN packages with an "amusements" tag:
| https://ctan.org/topic/amusements
| sho_hn wrote:
| realhats is pretty great.
| leemelone wrote:
| Think of all the work that was done on this package INSTEAD the
| paper the author should have been working on.
| fghorow wrote:
| I do hope they got tenure for this!
|
| :D
| soegaard wrote:
| The code didn't look as I expected. He more-or-less embedded an
| svg into the sty-file.
|
| https://framagit.org/Pathe/coffeestains/-/blob/main/coffeest...
|
| I am looking forward to a real generative AI that produces coffee
| stains.
| Dowwie wrote:
| https://framagit.org/Pathe/coffeestains
| BearOso wrote:
| I'm sure the extra cost of color printing makes it less
| economical.
| noelwelsh wrote:
| Looking forward to using this next time I'm told I have to print,
| sign, and scan a document. I already have software setup to
| slightly rotate the page and add some grain, but this will add
| extra verisimilitude.
| fuglede_ wrote:
| You and me both. Maybe someone will find this useful:
| https://photocopy.fuglede.dk/
| mck- wrote:
| Nice! If only I knew this existed last month.
|
| But they also needed a "company seal stamp" which I had to
| draw
| uhasker wrote:
| I legit had to google the word "verisimilitude"
| ebri wrote:
| Me too. What a wordsmith, I am in awe! not being sarcastic, I
| really do appreciate it
| eclipticplane wrote:
| convert \ -density 150 \ -colorspace
| gray \ +noise Gaussian \ -rotate 0.5 \
| -depth 2 \ "$1" \ "$(echo "$1" | rev |
| cut -f 2- -d '.' | rev)-scanned.pdf"
| johannes1234321 wrote:
| See falsisign: https://gitlab.com/edouardklein/falsisign
| tuatoru wrote:
| Now we just need a similar package to smudge and blot the
| signature slightly, and add a little ink spatter, for the
| fountain pen look.
| flexagoon wrote:
| And whenever you want to share a code snippet with someone,
| instead of using boring tools like Pastebin, use this instead:
|
| https://code.xxut.ru/
| ar7hur wrote:
| This is why I read HN every day.
| sho_hn wrote:
| Huh, my AI-generated newspaper also adds coffee stains to a LaTeX
| (technically LuaTeX) document: https://imgur.com/a/NoTr8XX
|
| I cobbled this myself, I didn't know it was such an expansive
| domain with prior art!
| mu_killnine wrote:
| Incredible! Thanks for sharing
| hathawsh wrote:
| Beautiful project! How long does the 1100 mAh battery last?
| sho_hn wrote:
| About 7 months in the first run. I recently switched things
| to a more efficient TPS63020-based voltage converter though,
| which has an extremely low operating quiescent current of
| only 25uA in low power mode (1/4 of the MT3608 I previously
| used). I'm hoping for more in the next!
|
| The comparison will also be apples-to-oranges though since I
| also switched it to a 3500 mAh 18650 during that revision ...
| self-drain and therefore the battery make itself now become a
| big factor ... ask me in a few years how it went? :-)
| engineer_22 wrote:
| Great project, would be a good expo for Hack-a-day
| fifticon wrote:
| I still cling to doing it manually, as a bonus you get coffee
| too!
| oorza wrote:
| What goes through someone's mind that they spend all the time and
| effort to create a visual gag and then don't put images of said
| visual gag on the documentation?
| ninju wrote:
| The supporting code repo contains a sample PDF
|
| https://framagit.org/Pathe/coffeestains/-/blob/main/coffeest...
| brbrodude wrote:
| Old-school internet vibes
| afhfah834 wrote:
| What do you mean? It is on the documentation?
|
| https://ca.mirrors.cicku.me/ctan/graphics/pgf/contrib/coffee...
| CalChris wrote:
| Maybe you can combine coffee stains and watermarks.
| throwawaaarrgh wrote:
| I'm gonna need a decaf option
| nvr219 wrote:
| Need to fork to make it bloodstains
| 0x38B wrote:
| Stains add a whole layer of history to a document - I remember a
| prof at uni once apologizing for the wine stains on our papers...
|
| In the same vein as stains, I love how non-waterproof inks react
| with water; the organic smudges and splotches add a bit of
| watercolor to an ordinary journal page (1).
|
| 1: https://nexus.armylane.com/files/Journal-Ink-splotches.jpg
| pvaldes wrote:
| Or use overpic and the coffee stain filter from Gimp.
| smitty1110 wrote:
| I'm fairly sure this is either older than stated, or is based off
| an older package. I distinctly remember a similar package
| existing when I was in high school in the 00's, I turned in a
| paper for AP CS with a faked coffee stain once as a joke.
| jrpelkonen wrote:
| Brings back memories from time when printed documents were still
| the norm. A coworker used to call it my "seal of approval" if a
| document was on top of my desk long enough to accumulate a hefty
| dose of coffee stains.
| emmanuel_1234 wrote:
| Working in France, I remember having to provide a "Scan of an
| original of Bank Account information slip" (approximate
| translation). It's just a number! That I could have copy/pasted
| in an email to make sure the secretary won't fuck it up, or I
| could download the document from my bank and email it, but no, HR
| insisted it had to be an original.
|
| I eventually downloaded one from my bank, converted it to JPEG,
| added a light coffee stain with Gimp and sent that, to pretend it
| was an actual scan of an actual document actually printed by the
| bank.
| musiciangames wrote:
| That almost made me nostalgic for the French love of paperwork.
| 'La paperasse' I seem to recall. Watching an official in action
| is like performance art.
| xanderlewis wrote:
| If you think the French love paperwork, try Japan!
| lloeki wrote:
| > I eventually downloaded one from my bank
|
| Had the same experience, but that I could not do, as my bank
| would only give out some crude Netscape era HTML laid out with
| a borderless <table>, that might just as well have been plain
| text. I literally had to fake something that looked like a
| pretty paper one, complete with the bank cooler palette and
| slapping a semi-transparent logo in the background.
|
| Another marvel: once I received some paperwork, and was asked
| to sign and scan, which I did.
|
| I had a nice scanner. It produced perfectly noise free, upright
| scans. I had a nice pen. It produced very clean scripture.
|
| Apparently too nice as the recipient lectured me that I had to
| print, physically sign, and scan, that they could not accept a
| digital signature on a digital document. The fact that I
| received the paperwork on _actual paper by snail mail and never
| could have had access to a digital version_ completely eluded
| them.
| arnley wrote:
| This is essential
| pugworthy wrote:
| This reminds me of the old Philip and Alex's Guide to Web
| Publishing* posts from the 90's and his sketcherly / back of the
| napkin diagram style.
|
| * http://philip.greenspun.com/panda/?
| markrages wrote:
| Previously: https://news.ycombinator.com/item?id=19008109
| noud wrote:
| I used this library very often when writing a new paper. When the
| paper was a draft I would put coffee stains on the pages. In this
| way, I always knew if I was looking at a draft or the final
| version.
| ok_dad wrote:
| I remember using something similar like a decade ago, maybe one I
| linked below? I added one to a paper for a math class I turned in
| and the teacher loved it so much that the next semester he used
| it on almost every handout; it was quite annoying after a while,
| hahaha.
|
| https://www.overleaf.com/latex/examples/latex-coffee-stains/...
|
| http://legacy.hanno-rein.de/hanno-rein.de/archives/349
| ashdnazg wrote:
| Package name should have been Lattex.
| maxglute wrote:
| Can we also get a decaf version. Or tears.
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(page generated 2024-02-09 23:00 UTC)