Freehand perspective and sketching; principles and methods of expression in the pictorial representation of common objects, interiors, buildings and landscapes (1916)
Norton, Dora Miriam · Brooklyn : The author · leaf 69
Fig. 78 … Now turn the cube slowly back to the position of Fig. 78,and with the stnngs find the converging point of A and B, Figure 80 shows the cube in this position, and the vanishing of A, B, and C by the use of three strings. The lines at right angles to them, which in Fig. 79 vanished directly in front,…
Drawing · Perspective
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