Thiessen Polygon Tool

Thiessen Polygons, or Voronoi Polygons, are geometric constructs dividing a plane based on proximity to given points.

Named after Alfred Thiessen, each polygon encapsulates points closer to its origin than any other. Formed by connecting midpoints between adjacent points, these polygons establish equidistant boundaries to neighboring points. A fundamental tool in spatial analysis and geography, Thiessen Polygons efficiently delineates regions of influence around specific points. Their application extends across various fields where understanding spatial relationships and proximity zones is crucial, including meteorology for precipitation analysis, geomorphology for drainage basin studies, and facility location planning. The technique, grounded in Voronoi tessellation or Delaunay triangulation, offers a versatile means to interpret spatial data and visualize the influence zones of given point sets.