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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 67

An illustration from 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, leaf 67 — consists in the mode offinding the points of intersection of the diagonal lines withthe curve. In placing the geometrical drawing at the sideof the line a, instead of on the line e, it is necessary forfinding these points in perspective (marked a and b in Fig. 2),to draw through them a horizontal… … PERSPECTIVE FOR STUDENTS. 43 13 and 14, and 16 and 17, are found as in Fig. 1 ; and thestudent must now find, by drawing a perpendicular linedividing the arch into its perspective halves,* the point cor-responding with the point 19 of Fig. 1, and from it draw aline to each of the points 13 and 14.…

Perspective

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