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 396
have line instead of point contact, thetangents to the circle c, giving the plan, would be drawn parallel to/?. Example.—Draw two lines including an angle of 450 ; these formthe outline of the plan of a cone which touches the ground alonga generator. Determine the projections of a cylinder… … General Examples.—1. A sphere 2\ diameter has its centre Cin AF. A point A is distant i and 2 from the vertical andhorizontal planes of projection and 3 from C. Determine asphere, centre A, which shall touch the given sphere. 2. A cone, vertex V, vertical angle 6o°, has its axis along XY. A point A…