As of Version 10, all the functionality of the ComputationalGeometry package is built into the Wolfram System. >>

Computational Geometry Package

 

ReferenceReference

ConvexHull planar convex hull of a list of points

DelaunayTriangulation planar Delaunay triangulation of a list of points

VoronoiDiagram planar Voronoi diagram of a list of points

PlanarGraphPlot plot the Delaunay triangulation of specified points

DiagramPlot plot the Voronoi diagram of specified points

TriangularSurfacePlot plot a surface according to a Delaunay triangulation

DelaunayTriangulationQ whether a vertex adjacency list is a Delaunay triangulation

BoundedDiagram bounded Voronoi diagram of a list of points

TileAreas find areas of tiles established by a vertex adjacency list

Ray  ▪  ConvexHullMedian  ▪  ConvexHullArea