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 98
point; but it isimmaterial whether the perpendicular line D, to find the pointof the spire, be drawn up from the centre of the upper orlower square of the tower. In Fig. 2, a drawing is given ofthe outer lines of a tower with a square spire, and the per-spective squares are drawn both at the top… … PERSPECTIVE FOR STUDENTS. 65 In representing conical forms, the same rule is to be fol-lowed. Fig. 3 represents a cone in perspective. The per-spective circle being drawn as described in the precedingproblems, and the points for drawing the curve being foundby means of a square, the perspective…
Perspective
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