Freehand perspective and sketching; principles and methods of expression in the pictorial representation of common objects, interiors, buildings and landscapes (1910)
Norton, Dora Miriam · Brooklyn : D. M. Norton · leaf 185
use of thecube (see dotted lines).The length of AC isfound by the diagonal(ED) of one side of thisimaginary cube, DF beingmade equal to DG (p.165). The steps in Chap-ter XXII illustrate thismethod. The end viewshows how the triangleis related in shape to thesquare face of the cube.Its vertical… … SOLUTIONS OF PROBLEMS by the help of one face of the cube. After the triangular outline issketched, the height of one lower bar (one sixth of the height of the cube)is marked upward from C, giving point E, and the lower edge of theinner triangle is vanished through E. Where BF, drawn so as to…
Drawing
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