Complete perspective course : comprising the elementary and advanced stages of perspective, the projection of shadows and reflections, with exercises in theory and practice, also the practical application of perspective (1900)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan and co. · leaf 52
DUCTION 29 the direction of sight, and YV (a vertical line througli C.V.)the edge of the picture plane. The line EY drawn parallel toha gives at \ the heiglit of the horizontal vanisliing line ofthe upper and lower surfaces of the board A. The position ofthe vanishing line for B is found in a… … plane, we can find the position of these vanishing lines withoutmaking a separate drawing. Let each of these planes be inclined to the ground plane atan angle of 40. Draw lines at this angle, at P.D. (Fig. 30),above and below the horizon line, and produce them till theymeet a perpendicular drawn…
Perspective
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