Architectural grid structures are made up of poles or spatial lattice. In digital design they are quiet often abstracted from polyhedrons. A polyhedron is a solid in three dimensions with flat faces and straight edges. The poles of the grid structure correspond to the edges and borders of the polyhedron. Because the topology of your 2D surface can be the possible base of your grid structure it is important to be familiar with the design strategy tesseolation.
There are two different kind of basic grid structures:
1. Surface oriented grid structures
2. Space filling grid structures