The fourth chapter of the Linear Perspective Master Course on NMA by Erik Olson.
Diagram 34: Creating Ellipse Guide Ellipses, Cylinders, and Minor/Major Axes
Diagram 35: Restrictions of the Cone of Vision, Film Frames, and Ground Ellipses
Diagram 36: A Plan, Elevation, and Drawing of a 1 Point Room with Figures
Diagram 36: A Plan, Elevation, and Drawing of a 1 Point Room with Figures (2)
Diagram 37: A Measured Down View in 1 Point Perspective
Diagram 38: Drawing Above Eye Level, at Eye Level, and below Eye Level Figures
Diagram 40: A View Looking Up in 1 Point Perspective with Measuring
Diagram 41: Understanding Reference Planes and Points from a Plan View