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 175
belowand one above the center guide lineand equal in length to the otherlines drawn; this will produce afigure similar to Fig. 13 {a). Nowdraw a third set of lines at rightangles to this second set and par-allel to the first set, as shown in Fig. 13 {b). These lines are thesame distance apart, and… … ZRi; (c) Fig. 12 one section, and the same operation maybe repeated, making the intersections ofthe short cross-lines take place at a pointfive times the space between the hori-zontal lines to the right. a(a) Fig. 13 20. Fig. 11 is a simple octagon, butto draw it accurately requires more careand…
