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David Richfield

I am David Richfield, a South African chemical engineer / biochemist living in Germany. I'm also a founder member and former director of Wikimedia South Africa, the South African Wikimedia Chapter.

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

I enjoy learning languages, graphic design, 3D modeling with Blender, cartography on OpenStreetMap, computer programming, playing Go and promoting free software. In 2016, I started juggling.

Here's a Limerick:

Babel user information
en-N This user has a native understanding of English.
af-N Hierdie gebruiker het kennis van Afrikaans op moedertaalvlak.
de-3 Dieser Benutzer beherrscht Deutsch auf hohem Niveau.
nl-2 Deze gebruiker heeft basiskennis van het Nederlands.
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 14 years and 20 days.
Editor - rhodium star I.jpgThis editor is a Senior Editor
and is entitled to display this
Rhodium Editor Star.
Wikipedia Autopatrolled.svgThis user has autopatrolled rights on the English Wikipedia. (verify)
Smile.svgThis user is part of the Welcoming Committee.
Crystal Clear app gimp.pngThis user is a Wikigraphist from the Graphics Lab, where you can request image improvement.
Internet-group-chat.svgThis user is signed up for the Feedback Request Service.
GIMPThis user contributes using GIMP.

Inkscape Logo.svgThis user contributes using Inkscape.
NewTux.svgThis user contributes using Linux.
Openlogo-debianV2.svgThis user contributes using Debian GNU/Linux.
Klickety Cuffs.pngThis user uses Microsoft Windows under duress.
elinksThis user contributes using ELinks.
Crystal Clear app mozilla.pngThis user contributes using Mozilla.
LaTeX logo.svg-3This user is an advanced LaTeX user.
Vimlogo.svgThis user contributes using Vim.
Python-logo-notext.svgThis user can program in Python.
PerlThis user is just another Perl hacker.
BASICThis user can program in BASIC.
CThis user can program in C.
pasThis user can program in Pascal.
<html>This user can write HTML.
phpThis user can code PHP.
reThis user writes regular expressions.
SQLThis user can program in SQL.
awkThis user can program in awk.
Go board part.jpgThis user is a Go player.
gkThis user is a geek.
BEThis user has a Bachelor of Engineering degree in chemical engineering.
MScThis user has a Master of Science degree in biochemistry.
Plato-raphael.jpgThis user has published peer-reviewed articles in academic journals.
This user shaves with Occam's razor.
This user thinks that if your grammar is incorrect, then you’re in need of help.
to¦goThis user chooses to sometimes use split infinitives.
whomThis user insists upon using whom wherever it is called for, and fixes the errors of whomever he sees.


Parliament diagram tool[edit]

You can make diagrams using this online tool!

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 host on Wikimedia's Toolserver (link above). The source code is hosted at GitHub - Bug reports, feature requests and patches are welcome!

The arch tool is quite popular for election results on Wikipedia, but the Westminster-style tool is still under development: a standard style has not yet been clarified, so if you use it, expect criticism and/or correction. If the output is not as you expect, consider editing with Inkscape and saving the result as a "plain SVG".

Pages I started[edit]

Don't start what you can't finish.


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)



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. There is a development CHDK version for this model, but I have not tested it yet: it is still alpha software as of November 2014. I've also since bought a Canon EOS 600D. It's a very nice camera! I have had good success with macro photography using extension tubes with the stock lens, but I later also bought a combination macro/telephoto lens.

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

External links[edit]

Go, Baduk, Weiqi[edit]