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 153
that the lines 3—4 and 8—7are at right angles with it, and will, consequently havetheir vanishing point in the point of sight; that the pa-rallel lines 1—8 and 4—5, being at an angle, not a rightangle, with the plane of delineation, require a distinct vanish-ing point, as will also, for the same… … PERSPECTIVE FOR STUDENTS. 119 2—3 and 7—6. The position of these vanishing points thenmust; be found on the plane of delineation, as described inFigs. 20 and 21, carried to the ground line, and perpendicu-larly over them set on the horizontal line. Having set these points on the horizontal line,…
Perspective
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