Geometrical drawing, projection drawing, freehand and ornamental drawing, wash work and brush drawing, elementary perspective drawing, architectural drawing (1921)
International Correspondence Schools · Scranton, PA : International Textbook Co. · leaf 145
nce, as the transition from the octagon to the circle consistssimply in rounding the corners, as shown in Fig. 16 (a).Where the corners of the octagon a be, etc. are rounded offby tangent arcs so as to produce an ellipse, which representsthe sides of the inscribed circle in perspective, and… … ng./? 66 PROJECTION DRAWING 67 on opposite sides of V^. In a similar manner, the corners ofa horizontal octagon similar to that shown in Fig. 13 may berounded off so as to produce a horizontal circle in perspec-tive, as shown in Fig 17. In a similar manner, lines drawn from a and d. Fig. 14,
