Municipal voting results of the Massachusetts Death with Dignity Initiative.  Source of underlying data is voting results reported by the Boston Globe: Physician-assisted suicide - Question 2 - 2012 Massachusetts Election Results - Boston.com. Voting results converted to scaled colors and associated with mapped municipality elements using Python.
Support

  90%–100%  80%–90%  70%–80%  60%–70%  50%–60%
Tie

  Exact tie
Oppose

  50%–60%  60%–70%  70%–80%  80%–90%  90%–100%
Own work
MA_cities_towns.svg: Sswonk
derivative work: Emw (talk)