A regular tesselation of a surface where regular hexagons are used for grid tiling.

A regular tesselation of a surface where regular hexagons are used for grid tiling.

Hexagonal grids are a common alternative to square grids, they offer less distortion of distances, more directions to navigate the cells, and have a pleasant appearance. Most of the properties belonging to square grids also apply to hexagonal grids, as well as algorithms usage.