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 225
th D.P., and produce it to meet H.L. in P. Draw a verticalline at P for the V,L. of the plane of shade. With P as centre,and radius PS, draw an arc to meet H.L. in A. Then PA isthe distance of tlie spectator from the Y.L. Set off at A, withH.L, an angle of 37°, and produce it to meet the A^.L. in… … Let B (Fig. 144) represent a similar plane, and let the G.P.still be the plane of projection; but let the sun be in front of thepicture [97] in a vertical plane, receding to the left and inclined tothe P.P. at an angle of 40°, and at an altitude of 30° above the G.P. Draw a line making an angle of…
Perspective
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