Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 404
from the points in plan to meet bn in 2, 2, which pointsare on the elevation of the line of intersection. Repeat this construction for the planes through theother points of division of the semicircle and draw curvesthrough the points so determined, obtaining two curves forthe elevation as shown,…
