A rudimentary and practical treatise on perspective for beginners : simplified for the use of juvenile students and amateurs in architecture, painting, etc., also adapted for schools and private instructors (1866)
Pyne, George · London : Virtue Brothers & Co. · leaf 139
awn inperspective by finding the positions of the points at theextremities of the lines, using the visual rays and point ofsight only as a vanishing point, we will now take a similarfigure, and point out the manner of drawing a perspectiverepresentation of it by means of the respective… … C Let A in the plan, Fig. 21, represent the triangle, b the planeof delineation, and c the position of the spectator. Find therespective vanishing points on the Representation (after draw-ing the horizontal line) for the lines a b, a c, and b c, thesides of the triangle a at D, e, and f ; * draw…
Perspective
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