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 121
o^ to the Y.Ps. to complete theperspective square circumscribing the base of the cone. Drawdiagonals to this square, and a line through the centre fromeach Y.P. 11 98 COMPLETE PERSPFCTIVE COURSE chap. To determiue the points where a circle would cut thediagonals of this square, set off IK equal to… … a line to Y.P. Draw perpendiculars at the points just foundto the diagonals of the upper square, and draw a fair curvethrough them, touching the sides of the square, as shown. Assume any convenient point v on H.L., and draw a linefrom it through t to meet the G.L. in G. Set up GH and HJ,equal…
Perspective
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