title: References for largest empty circle voronoi diagrams
body: <p>I need some reference in order to get this idea I have in mind:</p>
  
  <p>Given the largest empty circle problem, I want to determinate where to put new malls</p>
  
  <p>My problem: If I have a map with divided in two by a sea, my voronoi diagram goes through the points without taking in count the geographic limit (i.e. if someone lives in the left side of the map, that person would not want to cross the sea to go to the mall)</p>
  
  <p>Is there possibility or references to deal with this?</p>
  
  <p>By the way I read Fortune's algorithm before</p>