Revised 28sep09
Part II Perspective
kepler Kepler’s plane
alberti Alberti’s veil
horz Thales on the horizon
recipe Recipe for cubing an edge.
MeadTutorial Peeping House tutorial by Jason Mead]
crossratio Rule of Sines, Cross ratio, Perspective Rulers
measurebox Measuring the proportions of a given box in perspective.
circles Constructing a circle in perspective.