Processing sketch for visualizing geo trails
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GeoTrails.pde
MercatorMap.pde
README.md
Trail.pde
TrailSystem.pde
Tweet.pde
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README.md

GeoTrails

(c) 2012 Dave Troy (@davetroy)

Simple Processing sketch to allow visualization of simple geo-based trails through time. Currently ingests a csv file of tweets in the format of: screen_name,timestamp,lat,lon and displays them as geo trails on a basemap.

Create a Mercator-projection basemap using TileMill (http://tilemill.com) as per: http://tillnagel.com/2011/06/tilemill-for-processing/

Trails are displayed with a persistence-of-vision effect and gradually fade out. The sketch is rendered at a target frame rate of 30fps and each frame loads a certain number of seconds worth of tweets to display (currently 287 seconds). The sketch will stop running when it runs out of tweets.