// Written by David Buezas at http://bl.ocks.org/dbuezas/9572040 // Modified by Oliver O'Donnell // Please use code freely, with attribution. // MIT License for the stuff I changed, please.
This is a simple project to fill a need for a specific client on a web project.
Essentially, the client wanted a pie chart whose value changes according to a slider bar in the UI. So, for example, the pie chart might initially show data for 1995, then you can move the slider so it shows a data set for 1996, 1997, etc. This code does that.