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 83
touchesthe square, and they will do the same inthe perspective. The diameters pass through the true center andone is parallel to the picture plane. It can therefore be drawnin the perspective in its actual direction, giving two points(c and d). The other diameter, being parallel with the… … ACTUAL CENTER OF CIRCLE, ETC.
Drawing · Perspective
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