[Edu-sig] Design patterns

[Arthur]

> -----Original Message-----
> From: Kirby Urner [mailto:urnerk at qwest.net]
> 
> Good point about all triangles being equivalent given projection.  In
> nailing down the angles, we've inadvertently defined a fourth vertex:  the
> point of view.  Given we're talking four vertices, we should maybe rename
> our class Tetrahedron ;-D.

Good solution - as it leaves open the question as to where is the triangle
and where is the point of view ;)

Though when we add another dimension, all tetras are projectively
equivalent. Part of why I can't adjust to a focus on a tetra that happens to
be regular in some way.

Art