A misleading title perhaps, since WebGL isn’t generally available to iOS platform developers. Hacks aside, if you’re learning WebGL and have an iPhone it is still a very educational environment. WebGL essentially wraps OpenGL ES in a modern Web browser environment. You can feed data in and out as textures associated with browser canvas areas, […]
Category Archives: Image Description
Building R’s RGL library for OSX Snow Leopard
RGL is needed for nice interactive 3d plots in R, but a pain to find out how to build on a modern OSX machine. “The rgl package is a visualization device system for R, using OpenGL as the rendering backend. An rgl device at its core is a real-time 3D engine written in C++. It provides […]
Rorschach test: hidden structure or noise?
Birth of a nation His girl friday Nosferatu Meet John Doe Killer Shews The Amazing Transparent Man Teenagers from Outer Space Last Woman on Earth Voyage to the Planet of Prehistoric Women
Video Linking: Archives and Encyclopedias
This is a quick visual teaser for some archive.org-related work I’m doing with NoTube colleagues, and a collaboration with Kingsley Idehen on navigating it. In NoTube we are trying to match people and TV content by using rich linked data representations of both. I love Archive.org and with their help have crawled an experimental subset […]
NISO/CLIR/RLG – Technical Metadata Elements for Images Workshop (18-19th April 1999)
Maybe this is a record for delayed blogging. Nine and a half years late, here’s a writeup I found (on a corpsed hard-drive) of an image metadata workshop held by NISO, in Washington. I wrote it up for the JISC JIDI project at ILRT, who funded my trip. I’m sure they won’t mind it being […]
All your photos…
Another day, another massive leak of hosted personal photos. They’re probably being crawled by fake dating sites as I type this. “Meet these girls from $geoipdb.UserLocationFromIPAddress() now!“, etc. They’ll probably end up in bittorrent too, alongside the recent Myspace leaked photos.
Waving not Drowning? groups as buddylist filters
I’ve lately started writing up and prototyping around a use-case for the “Group” construct in FOAF and for medium-sized, partially private data aggregators like SparqlPress. I think we can do something interesting to deal with the social pressure and information load people are experiencing on sites like Flickr and Twitter. Often people have rather large […]
MySpace open data oopsie
Latest megasite privacy screwup, this time from MySpace who appear to have allowed users to consider photos “private” when associated with a private profile, while (as far as I can make out) have the URLs visible of guessable. Whoopsadaisy. Predictably enough someone has crawled and shared many of the images. Wired reports that the site […]
Flickr (Yahoo) upcoming support for OpenID
According to Simon Willison, Flickr look set to support OpenID by allowing your photostream URL (eg. for me, http://www.flickr.com/photos/danbri/) to serve as an OpenID, ie. something you can type wherever you see “login using OpenID” and be bounced to Flickr/Yahoo to provide credentials instead of remembering yet another password. This is rather good news. For […]
Imagemap magic
I’ve always found HTML imagemaps to be a curiously neglected technology. They seem somehow to evoke the Web of the mid-to-late 90s, to be terribly ‘1.0’. But there’s glue in the old horse yet… A client-side HTML imagemap lets you associate links (and via Javascript, behaviour) with regions of an image. As such, they’re a […]
HTML Imagemap authoring tool for MacOSX?
I’ve searched around in vain for one. I want to annotate my FOAF spec diagram with mouseover text and links into the documentation. Most of the tools I find are a decade or more old, or pay-to-play. I remember the Gimp image editor can do imagemaps, but it crashes on startup on my MacBook. I […]
FOAF diagram (day 2)
FOAF diagram (day 2) Originally uploaded by danbri Another revision, after feedback from Ivan. The original had “Thing” in italics (a convention I tried before adding in doap: dc: and sioc: references), to indicate it was from another namespace. I’ve now made that heritage explicit (although I suspect it might confuse, the idea is pretty […]
FOAF spec diagram
experimental foafspec diagram Originally uploaded by danbri I’ve been trying to capture the core terms of FOAF in a diagram. Here’s version two. Notes: there are a few terms I’ve missed out, to avoid massive clutter: workInfoHomepage, geekcode, myersBriggs, currentProject, pastProject, dnaChecksum, membershipClass, sha1, fundedBy, theme, Online*XyzAccount, logo, phone. These are all underspecified, underused, or […]
Symbol languages and the Semantic Web
OK so I just stumbled upon this… …via Jonathan Chetwynd’s ever-inventive and SVG-happy Peepo.com. The “Car Bomb in Baghdad” story is from a site created by Widgit Software, and explains itself as follows: Symbolworld has been set up to provide a web site with material suitable for symbol readers of all ages. The internet is […]
Google Earth touring via KML
While I’m writing up old hacks, here’s one that I really enjoyed, even if it was a bit clunky. A couple of years ago Mikel Maron implemented (on my urging in irc.oftc.net #geo IRC :) a PHP-based Google Earth touring service, which interconnects a “tour guide” user with “tourists”. This site facilitates collaborative, realtime exploration […]