The boundary consists of one or more lines which together completely bound a single, contiguous area. The lines may all join or intersect one another; alternatively, they may form an outer boundary and one or more inner boundaries.
The innerPoint is any arbitrary point which falls inside the bounded area and which does not intersect the boundary.
The concept of a BoundedArea is similar to that of Polygon or PolygonComplex. However with the latter classes, rigorous rules apply to the construction of boundaries.