When a story is best told through a visual representation of geography, maps are often the best way of telling it. Three journalists joined Hacks/Hackers NYC to explain how they approached mapmaking for their recent projects. Slides and code from their presentations are available in this link bundle.
While New York was preparing for Hurricane Irene, John Keefe, WNYC’s senior executive producer for news, decided to create a hurricane evacuation map so people could see whether or not they needed to leave their homes.
Learn more about John’s process on his blog.
Albert has open-sourced his code and posted it to Github.
ProPublica’s Jeff Larson spoke about two interactive maps he the produced for ProPublica’s investigation into corporate influence in the redistricting process. In his maps, Larson combined census data with district maps to show how voter districts were segregated in ways that would favor certain candidates or keep ethnic groups together in a voting bloc. (Watch a video about the complicated issue.)
Each map is dynamically generated from over 2GB of data through a new mapping library ProPublica wrote in-house with C, API and Ruby.
Watch all three presentations in the video below: