Stores pointer to:
• outerComponent
linked list (looped when diagram is built)
• site
- pointer to the site
public class Cell
public init(site: Site)
var satellite: Any?
var outerComponent: HalfEdge?
var site: Site
Returns hell vertices of the cell
func hullVerticesCCW() -> [Vertex]
Returns all the neighbours of specific cell
func neighbours() -> [Cell]