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 20
h thebase line (B.L.) or horizon (H.L.) will never vanish, butalways appear parallel. This is an important rule. To find the distance of a point within the plane. In fig. 6, let AB DC represent the face of a cube restingon the ground, and let the given face touch the picture plane.The near lower… … We have said that all lines at right angles to AB willvanish at point C.V.; and since all angles of a cube are right 18 DRAWING. angles, the line BE, if produced, will reach C.V., andso will line DF, for the same reason. But we want to findthe position of E, the extremity of the line BE. Draw a…
Geometrical drawing · Perspective
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