Sometimes a map becomes more than just a spatial representation and becomes something else.

Sometimes a data visualisation becomes more than just the underlying data and almost takes on a life of its own.

When these two things meet or collide the results can be spectacularly compelling and produce, unintentionally … art? Look at the image below … filigree lace work? Crochet for the deranged of mind? Silk for the sociopath? Macrame for the mad? Sadly none of the above.

It’s instead an image from the Geotagger’s World Atlas but it’s still unintentionally beautiful.

The maps are ordered by the number of pictures taken in the central cluster of each one. This is a little unfair to aggressively polycentric cities like Tokyo and Los Angeles, which probably get lower placement than they really deserve because there are gaps where no one took any pictures. The central cluster of each map is not necessarily in the center of each image, because the image bounds are chosen to include as many geotagged locations as possible near the central cluster. All the maps are to the same scale, chosen to be just large enough for the central New York cluster to fit. The photo locations come from the public Flickr and Picasa search APIs.

I could look and stare at the all the images in Eric’s Flickr set for hours. Correction, I have stared at the images for hours.

As a spatial coordinate system, longitude (abbreviated as φ, or phi) and latitude ( λ, or lambda) work very well in defining a point on the surface of the Earth. But to gain further meaning from a long/lat pair you either need some clever algorithmics or you need to plot the long/lat point on a map which even then will yield information only as good as that which is rendered on the map itself.

Which is why I think identifier systems, such as Yahoo’s WOEID, add so much value. A WOEID adds a linked web of rich metadata, describing not only a point with a long/lat centroid, but also reinforces the concept of a place, with neighbouring and hierarchical relationships.

Coordinates describe the where of a place, identifiers such as WOEIDs describe the how of a place but both conveniently (in a slight embarrassed, foot shuffling short of way) overlook the when of a place.

Former Flickr geo-hacker and current Stamen Design geo-hacker, Aaron Cope, posted a way around the temporality problem on his blog this evening, describing spacetimeid, a web app which encodes and decodes a 64-bit identifier combining x, y and z coordinates.

So far, so timely; a spacetimeid allows us to describe not only a point but also a time. The logical next step to this is to allow the encoding of a WOEID, that includes a long/lat centroid, with a time range. Two immediate use cases spring to mind.

Firstly, this allows us to represent places which have a small temporal range, such as festival or concert venues; this is frequently referred to as The Burning Man Problem, after the annual festival of the same name. During the duration of the festival Burning Man exists as a concrete place, outside of the festival timescales the site of the festival is empty land.

Secondly, this allows us to represent changes in places over a large temporal range, which can be used to rectify historical maps and show the change in a place over a number of years.

I pinged Aaron a mail on this, saying “Encode temporal information in range format plus WOEIDs ? … Thinking a WOEID for Burning Man or similar here“. He replied a few minutes later with “Yes, that would be easy enough to do if the (x) is the WOEID and the (y) time. I can add that later“. Followed, in the time it’s taken me to write this post, with “Ask and all that … http://spacetimeid.appspot.com/woe/encode/44418/1268854022“.

Now all we need to do is get this used in the real world and the slightly embarassing problem of temporality will have been solved once and for all. Easy isn’t it?

My photos all used to be publicly accessible and with an all rights reserved copyright on them but then I lost my Flickr innocence, which was a bad thing at the time and switched all of my photos to friends and family visibility. About a week later, when I’d calmed down a bit, I went through all of my photo sets; photos of my family and of home stayed out of the public eye and stayed all rights reserved. But everything else, I opened up and changed the license to some rights reserved using the Creative Commons Attribution Share-Alike license.

The reasoning behind this was that pretty much every slide on every deck I put together has a background from Flickr which is licensed under the Creative Commons model. Without this license and without people releasing their photos using it, my slide decks would be altogether poorer and a whole lot blander.

Opening up some of my photos under Creative Commons works both ways. In February I received a mail from someone at Schmap telling me that two of my, Creative Commons licensed, photos had been shortlisted for including in the next edition of their London guide. Instantly suspicious of this I asked the Twitter-verse for commentary; Vikki Chowney, Lorna Brown and Tim Moore were good enough to respond and tell me that this wasn’t a scam, as my cynical mind had first surmised.

It’s not much in the grand scheme of things but the people at Schmap either liked the photos I’d taken of the Royal Festival Hall and in Chinatown’s Tokyo Diner (less likely) or didn’t have any other suitable candidates and so plumped for mine (much more likely). Either way, this was a great example of Creative Commons in action and it allows me to continue to mine Flickr’s ever growing pool of photos for my slide decks with a clear conscience.

• Got a colleague who keeps wandering away from their desk and leaving their mobile phone behind, which then keeps on ringing? Maybe they need one of these signs left on their desk. Maybe.
• Fancy a challenge? How many times a day do you type the incorrect command at the shell? Once, twice, three times a day? More? Maybe you should give Suicide Linux a try; it helpfully turns any mistyped command into rm -rf / thus helpfully erasing your root file system. Concentrate now.
• The WordPress Flickr Manager is a wonderful plugin which integrates your Flickr photostream into blog posts. Alas it doesn’t work with WordPress 2.9. Until now.
• Posting the same article to multiple blogs severely impacts your search engine ranking results. How did I not know this? It’s stopped at least one person from using the Posterous autopost function.
• Sometimes, just sometimes, sub-editors trim just a little bit too much from an article prior to publishing.
• We’re used to online slippy maps being able to zoom in and out; but zooming in and out of paper maps? That’s something else indeed.
• What’s happens in Vegas stays in Vegas; but sometimes it stays on FourSquare as well.
• Photo of the year so far; the Space Shuttle Endeavour, caught in silhouette from the International Space Station. That phrase alone sounds like it’s been lifted wholesale from an Arthur. C. Clarke novel.
• ˙uʍop ǝpısdn ǝdʎʇ oʇ pǝǝu noʎ ‘sǝɯıʇǝɯos ʇsnɾ ‘sǝɯıʇǝɯos

Posted via email from Gary’s Posterous

A rather jovial looking Tom.

Posted via email from Gary’s Posterous

Posted via email from Gary’s Posterous

What? Just like that? Surely not, they obviously meant they’d added it to the list of stuff they really need to fix.

But apparently not.

And I tested it and it worked. Conditioned as I am to the UK norm, this was pretty unheard of, hence the need to write this experience up. So on the Internet, at least, you don’t always get what you pay for, but sometimes you get it for free.

Posted via email from Gary’s Posterous