User:Slashme

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David Richfield

I am David Richfield, a South African chemical engineer / biochemist working in candy R&D at Mondelēz International in Munich. I'm also on the board of Wikimedia South Africa, the South African Wikimedia Chapter.

My username comes from IRC: "/me" is a shortcut which inserts your username.

I enjoy proofreading, playing Go and tinkering with Linux systems.

The boy's got brains, He just don't use 'em that's all
The boy's got brains, He just refuse to use 'em and that's all
He says "The more I get to thinkin', The less I tend to laugh"
The boy's got brains, He just abstains
- Paul Simon - "Oh, Marion"
Babel user information
en-N This user has a native understanding of English.
af-N Hierdie gebruiker het kennis van Afrikaans op moedertaalvlak.
de-2 Dieser Benutzer beherrscht Deutsch auf fortgeschrittenem Niveau.
ru-1 Этот участник владеет русским языком на начальном уровне.
fr-1 Cet utilisateur dispose de connaissances de base en français.
es-1 Este usuario tiene un conocimiento básico del español.
it-1 Questo utente può contribuire con un livello elementare in italiano.
xh-1 This user has basic knowledge of isiXhosa.
Users by language
Noia 64 apps karm.svg This user has been on Wikipedia for 8 years and 10 months.
Tutnum3.jpg This editor is a Most Perfect Tutnum and is entitled to display this Book of Knowledge with Coffee Cup Stain and Cigarette Burn.
Wikipedia Autopatrolled.svg This user has autopatrolled rights on the English Wikipedia. (verify)
☺ This user is a member of the
Welcoming Committee.
Edit-find-replace.svg This user is a new page patroller.
Crystal Clear app gimp.png This user is a Wikigraphist from the Graphics Lab, where you can request image improvement.
GIMP This user contributes using GIMP.

Inkscape Logo.svg This user contributes using Inkscape.
NewTux.svg This user contributes using Linux.
Openlogo-debianV2.svg This user contributes using Debian GNU/Linux.
Klickety Cuffs.png This user uses Microsoft Windows under duress.
elinks This user contributes using ELinks.
Crystal Clear app mozilla.png This user contributes using Mozilla
LaTeX logo.svg-3 This user is an advanced LaTeX user.
Vimlogo.svg This user contributes using Vim.
py This user can program in Python.
Perl This user is just another Perl hacker.
BASIC This user can program in BASIC.
C This user can program in C.
pas This user can program in Pascal.
<html> This user can write HTML.
php This user can code PHP.
re This user is a regular expression programmer.
SQL This user can program in SQL.
awk This user can program in awk.
Go board part.jpg This user is a Go player.
gk This user is a geek.
BE This user has a Bachelor of Engineering degree in chemical engineering.
MSc This user has a Master of Science degree in biochemistry.
Plato-raphael.jpg This user has published peer-reviewed articles in academic journals.
This user shaves with Occam's razor.
your/ you’re This user thinks that if your grammar is incorrect, then you’re in need of help.
to¦go This user chooses to sometimes use split infinitives.
whom This user insists upon using whom wherever it is called for, and fixes the errors of whomever he sees.

Activity[edit]

Parliament diagram tool[edit]

You can make diagrams using this CGI script!

I started work a while back on a tool to render svg diagrams for legislatures - I started out with a tool that spits out a rectangular diagram with a title and a legend. It is hosted at my Freeshell account, but it is now considered obsolete. In May 2010, I saw some very nice arch-shaped diagrams drawn with User:Habbit's ADSvote program requested for conversion to SVG on WP:GL/I. Instead of doing manual SVG conversion, I programmed a similar algorithm, which I now also host on Freeshell (link above). You can get the source code of both scripts from the links at the top of User talk:Slashme/parliament.py. If you have any suggestions, please let me know!

Use by others[edit]

Pages I started[edit]

Don't start what you can't finish.

3Beta Hydroxysteroid dehydrogenase Vital Health Foods Thearubigin
Hydrophilic-lipophilic balance Hydroxycitric acid Patch point
List of steroid abbreviations Merkenstein ruins Grindometer
Thiamine pyrophosphokinase J Willard Hershey Muira puama[1]
Template:Enzyme inhibition Elysia chlorotica Aspalathin
List of Latinised names Far-Eastern blot Trilostane
Brookfield Engineering Particle density Theaflavin
The Ultimate Alphabet Star (1982 film) Sally Cato
Ian Fleming (chemist) Riaan Cruywagen Carr index
Shazam Entertainment Pill (pharmacy) Nothofagin
Sixto Diaz Rodriguez Elysia viridis bath salts
Jean-Louis Jeanmaire Feingold Diet Ed Nather
Robert Pauli Scherer Hausner ratio Iron Hand
Trimagnesium citrate Colloid mill Clastogen
Klaer Lightende Spiegel der Verfkonst Latinisation Isibongo
Compagnia dei Bardi Claude Serre Quarg[2]
Reducing equivalent Prostho Plus HPTLC
Capsule (pharmacy) Bardi family Pain wind-up
Endovenous laser therapy Vasitis nodosa Norweto
Lycophidion capense Duberria lutrix Lycophidion
List of unofficial observances by date Temnopteryx Lycasin
Current Medical Diagnosis and Treatment Chronostasis Tai tai
Combretum caffrum Palm stearin Promin
Goldman's dilemma Salatrim Kominkan
A Retrieved Reformation Panagia Episkopi Mike Wilks (author)

Some pictures and animations I've contributed[edit]

Here are some selected files. For a more complete list, with many more pictures, see my Commons uploads (or if you have javascript enabled, you can see them in a gallery view)

Tools[edit]

Camera[edit]

I bought a Canon PowerShot A630 in April 2007, and have since started contributing photos to Wikipedia. In 2008, due to an insurance payout after a stupid accident involving seawater, it was upgraded to an A650IS, quite a nice camera, and it runs chdk quite nicely, thanks! That camera was eventually stolen in 2013, and I have replaced it with an SX270HS, which has the new Digic 6 processor, to which CHDK hasn't (yet) been ported. I've also since bought a Canon EOS 600D, but so far I only have the kit lens - I'd like to buy a macro someday, but they're expensive.

Tablet[edit]

I bought a Genius easypen serial graphics tablet for R 200 in December 2007, and found it extremely useful for graphics editing. It works fine with X-windows on my Debian Linux system, thanks to Anders Melchiorsen. It's a tolerably good entry-level tablet, but it has no pressure-sensitivity, and only one button apart from the tip, which makes it less than ideal for X-windows. Also, releasing the pressure on the tablet comes with a clicky feel, so things never end up exactly where you dragged them to, which is a bind in inkscape. So I upgraded to a Genius G-pen 560, which works well with Jan Horak's Wizardpen Driver and the linux kernel aiptek driver. Update: I now have an oldish toshiba laptop, on which I installed Ubuntu Intrepid Ibex. The relevant links to make the tablet work are the Ubuntu community wizardpen setup page and some useful settings on the Penguin's Diary blog. Another update: On Ubuntu Lucid, it needs a udev rule to be added to work correctly, and there are some small tweaks needed for Maverick. More info on the Ubuntu Aiptek page. Update 2: it "Just Works™" on Ubuntu 12.04 LTS.

GPS[edit]

I used to use Nokia phones, so I bought myself a Nokia LD-4W GPS unit which I use to log data for the OpenStreetMap project. Its price/performance ratio was so good that when it was lost or stolen (still not sure...) I bought another one. It works nicely with gpsd on my laptop, as long as you pass the -b option to keep it from getting confused when the system tries to probe it. Top tip: to reset it, don't hold in the power button, that just removes all bluetooth bindings. You hold down the off button while plugging in the power.

Laptop[edit]

In a moment of stupidity, I bought a Proline W763S laptop. Quite cheap (just R4000 new), and it can come without a Windows license with Ubuntu linux installed, but unfortunately the graphics card is made by SIS, and it was running in VESA 800×600 mode as supplied. It was easy to get it to run at 1024×768 in VESA by writing an xorg.conf file, but SIS don't supply drivers without NDAs. Fortunately, a reverse-engineered 2D driver is available, written by Thomas Winischhofer, and the patch that Terry Purchase applied to make his Asus X5DC run at 1360×768 works for me. Update: Terry now has a version which works on Ubuntu 10.04 : Lucid Lynx.

Neotel modem[edit]

Neotel provide reasonably-priced wireless internet in South Africa, and supply a wireless modem made by ZTE Corp. to allow one to use the service. The modem acts as a flashdisk when first plugged in, and contains Windows drivers. These drivers then put it into modem-mode. I managed to get it working under Debian Linux using usb-modeswitch - instructions here.

Brilliant quotes that I can't find on the internet[edit]

Don't you see yon narrow, narrow road, so thick beset with thorns and briars?
That is the road to righteousness, though after it but few enquire
Don't you see yon broad, broad road that lies across the lily leav'n?
That is the road to wickedness, though some call it the road to heav'n
Don't you see yon bonny bonny road that lies across the ferny brae?
That is the road to fair Elfland, where you and I this night must go.
- From The Ballad of Thomas the Rhymer, as performed by Steeleye Span

Some of my favourite wikitools[edit]

External references[edit]

Go, Baduk, Weiqi[edit]

Latex, ps, pdf, vim, latex-suite, ChromQuest tips[edit]

Footnotes[edit]

  1. ^ since moved to Ptychopetalum
  2. ^ Now merged into Quark (cheese)