Walker, William, b. 1821 · New York : C. Scribner · leaf 260
Fig. 180. … 232 On Angular Perspective. cube, and at that height draw a line across the paper.This line is known as the H. l,, and is used for placing theyanishing points on. (4.) Ascertain accurately the angles at which thelines, B F and B D, respectively retire (by comparing themwith a horizontal line), and…
Drawing -- Study and teaching
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