Perspective and geometrical drawing : adapted to the use of candidates for second and third-class teachers' certificates (1887)
McGuirl, Thos. H. (Thomas H.) · Toronto, Ont. : W. Briggs · leaf 92
y determined in perspec-tive, if drawn in any but a direct view. The sphere rests on theground at a point directly beneath the centre, and it touchesP.P. at a point perpendicular to the vertical, from the centre.Example 1.—Draw a sphere, radius 2, resting on groundat a point 3 to right and 2 within… … 90 DRAWING. Here CA = AB = AD = AE = 4, EF = FM = 2, GF=Hhence K is centre at intersection of diagonals and HK = GF.(Fig. 53.) Xqte.—The sphere will not touch the P.P. unless HK =KF. Example S.—Draw a cube, edge 4, touching P.P. 4 toright, and in this place a sphere whose radius = 2. Here thesphere…
Geometrical drawing · Perspective
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