Description geometric pattern

What is the description of geometrical design?
Geometrical design (GD) is a branch of computational geometry.
It deals with the construction and representation of free-form curves, surfaces, or volumes and is closely related to geometric modeling.
Core problems are curve and surface modelling and representation..
A pattern is a regularity in the world, in human-made design, or in abstract ideas.
As such, the elements of a pattern repeat in a predictable manner.
A geometric pattern is a kind of pattern formed of geometric shapes and typically repeated like a wallpaper design.

What is the description of geometrical design?