title: inverse of voronoi diagram
body: <p>I work in GIS. I have a set of polygons. I would like to make an algorithm which first check if the polygon set is a valid Voronoi diagram. If yes then returns the set of points which can generate the same voronoi diagram.</p>
  
  <p>Can anybody help me how to go for it</p>
  
  <p>Thanks</p>