Interactive Voronoi Diagram and Delaunay Triangulation

This example demonstrates the generation and interactive relationship between Voronoi diagram (Thiessen polygons) and Delaunay triangulation based on a set of points. The core mathematical concepts include spatial tessellation, neighborhood relationships, and point set geometry. Construction: Using GeoGebra's Voronoi command to generate Thiessen polygons from 39 discrete points (A1-A39), and Delau