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Feb 08
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Taxi! Data Viz of 10,000 Taxi’s in Manhattan

By Posts 2 Comments

Taxi! is an analytical model that maps the trip data for 10,000 taxi rides over the course of 24 hours. Geographic location data for the origin and destination of each ride is combined with waypoint data collected from the Google Maps API in order to generate a geographically accurate representation of the trip:

Taxi! from Juan Francisco Saldarriaga on Vimeo.
The team used data from taxi rides originating or ending in the neighborhoods of Lincoln center or Bryant Park. The visualization recreates a ‘breathing’ map of Manhattan based on the migration of vehicles across the city over a period of 24 hours, displaying periods of intensity, density and decreased activity.

This project was a collaboration between Tom McKeogh, Eliza Montgomery and Juan F Saldarriaga. It was done for SEARCH class taught by Mark Collins and Toru Hasegawa (Proxy), at GSAPP, Columbia University, Fall 2011.

As part of the reseach they acknowledge the support of the CUNY High Performance Computing Center under NSF Grants No. CNS-0855217 and No. CNS-0958379.

For any additional information please contact Juan Francisco Saldarriaga at jfs2118@columbia.edu

As a side note we also like the music by Rob Viola of statikluft.com/

Feb 02
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ABM, SketchUp, ArcGIS and Lumion

By 3D GIS, 3dmax, ABM, arcGIS, CASA, CASA MRes, data visualization, Featured Game Engine, Lumion, Twitter Data, twitter maps 3 Comments

Over the past few weeks we have been exploring exploring new methods and techniques for visualising data. Developed as part our Masters course in Advanced Spatial Analysis and Visualisation we are now looking into issues of scale, realtime rendering, rapid visualisation and 3D exhibition spaces.



Regular readers will know we have been exploring Unity due its interactive nature and ability to import various file types into its game engine (see Particles, Agents and Emergent Behaviour ). Unity is still an option but for rapid visualisation Lumion also offers distinct possibilities. The movie below details our first draft example of building an exhibition space (SketchUp), retexturing and adding various crowd/delegate models (3DMax) and the Twitter map (ArcGIS) using Lumion:



If Lumion offered a stand alone viewer rather than purely movie based output then it would be our engine of choice. As such it is currently a weigh up between Lumion and Unity, our Unity example is under development, we will post it soon as we can…

Jan 25
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London Twitter Data as a Landscape

By abstract visualization, data, data visualization, landscape visualization, Lumion, soho, Twitter 5 Comments

Readers will know that as part of the MRes in Advanced Spatial Analysis and Visualisation, here in CASA, we are exploring new methods and techniques for visualising data. As part of the course we are looking at collecting data from the Twitter API and using the resulting .csv file as an input into a variety of software, including Processing and ArcMap. Data so far has been focused on displaying the output from ArcGIS as a slightly more traditional map, albeit in 3D via Lumion:


Taking a step back it is possible to take a more abstract view of the data visualisation and use the Twitter data collected to create a digital elevation model for direct landscape visualisations.



As we have mentioned in previous posts there are of course many arguments on the pro’s and con’s of visualising data in such a way, indeed the visualisation is developed to open up the debate as part of the MRes course allowing various visualisation techniques to be compared from the same data set. 


Sometimes however an abstract route to visualising data can quite liberating in a world of visualisation dominated by more traditional and academic output, the screenshot above illustrates Kingston Peak with Soho Mountain dominating the background. The movie below details the landscape as a fly-through:



In future posts we will explore issues of scale as we take the landscape and move it into an online exhibition space.


Update  – see Data Space: Agent Based Models, SketchUp, Visualisation, ArcGIS and Lumion for the exhibition space developments…
Jan 24
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When Atoms Meet Bits: Social Media, the Mobile Web and Augmented Revolution

By augmented reality; collective action; mobile phones; occupy; protest; social media; future internet No Comments

As Editor of Future Internet i am pleased to announce that Nathan Jurgenson of the University of Maryland has just published a new paper entitled ‘When Atoms Meet Bits: Social Media, the Mobile Web and Augmented Revolution’: 

The rise of mobile phones and social media may come to be historically coupled with a growing atmosphere of dissent that is enveloping much of the globe. The Arab Spring, UK Riots, Occupy and many other protests and so-called “flash-mobs” are all massive gatherings of digitally-connected individuals in physical space; and they have recently become the new normal. The primary role of technology in producing this atmosphere has, in part, been to effectively link the on and the offline. 


The trend to view these as separate spaces, what I call “digital dualism”, is faulty. Instead, I argue that the digital and physical enmesh to form an “augmented reality”. Linking the power of the digital–creating and disseminating networked information–with the power of the physical–occupying geographic space with flesh-and-blood bodies–is an important part of why we have this current flammable atmosphere of augmented revolution.


The full paper can be read over at Future Internet

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