In my post about the good people at Yahoo's design research group in September I suggested that some of their visualisations remind me of the movie War Games. I love the movie, but I continue to think that certain kinds of accidental visual resonance should be avoided. The 'incoming' visualisations by the good people at Dopplr have this problem too.
Today, Mike sent me the above image that Gem ffffound showing the devastation caused by the Oakland Hills firestorm in 1991. It's shocking, stunning and scary all at once to see so many homes ablaze like that. Mike pointed out that it looks like some of the work from our Trulia Hindsight project at Stamen.
Thankfully I think Mike was referring to the early prototypes I made in Processing using additive blending and a red-through-blue colour range. I've uploaded a movie of one of these prototypes to Vimeo so you can get an idea of what we're talking about:
San Francisco Property Prices, Animated from Stamen on Vimeo.
The fact that certain parts of the movie looked like San Francisco was burning, or being bombed, was definitely a problem we had to avoid for the final piece. It's something I wouldn't want to be thinking about addicentally if I was trying to find out about real-estate in the area. What we want is to make something that can illustrate the effects of real devastation if we want it to, without emotionally swindling you if you just want to think about urban growth. That's why we knocked out the red and orange hues in the colour range, added a drop shadow and ditched the additive blending. Ultimately, it was more appropriate to show data on the map than in the map.

So, if you want to you can look up some of the areas of Oakland affected by the fires in 1991, such as this example, and spot the clear rebuilding activity in 1992. With luck, the animation will illustrate some of the devastation caused by the fires, without looking like a simulated disaster.
Just a quick note to say that on Saturday March 10th I'll be appearing at SxSWi in Austin, Texas as part of a panel convened by Flickr/geoblogger's Rev Dan Catt entitled "Mapping: Where the F#*% Are We Now?". In the fancy SxSW panel picker, Dan's proposal read:
"Last year online mapping was emerging, now it's everywhere; on your mobile, in your camera, on your wearable head-up display, in your location aware clothing, even on paper and in your kids. Which of those did I totally make up? Guess it's time to check in with those people who actually make maps, merge virtual and real worlds at location flux points, and, you know, put maps online."
It sounds great! I'll be wearing both my old, trusty OpenStreetMap hat and my new, fancy Stamen hat, which should make for an interesting balancing act.
Nicholas Street, a recent MEng Computer Science graduate from Imperial College London, posted last week to the mysociety maps mailing list about his final year project work, TimeContours: Using isochrone visualisation to describe transport network travel cost.
His work includes a comparison with my own maps, which he says are "effective prototype implementations, but the unfamiliar unlabelled layout makes it difficult to relate to the underground". Touché! To his credit, Nicholas addresses almost all the deficiencies of my tube maps with his own software and goes significantly further in implementing the same kind of analysis for other transport networks (even including an example of using street data from my friends at OpenStreetMap).
His approach and background reading are covered in detail so the final paper will be a great resource for people working in this area in the future. I do hope he finds time to release the software for us all to use too. As well as the more traditional academic and print references, it's nice to see a hat tip to people putting their thoughts and experiments online such as myself, Rod and Oskar. Whilst a blog is no substitute for peer review and academic rigour, I strongly believe that the more of these ideas we share then the better all our work will become.
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