Perspective and geometrical drawing adapted to the use of candidates for second and third-class teachers' certificates . Fij?. 34. Here ED = 4^, EA = 2\ DB = 2. Describe semicircle ASD,draw AG and BM J_ to AB, and draw GSM through S, 60 DRAWING. parallel to AB; make AE = AG and AF = AB; join F MPand E MP, also A , D , B Join DG and DM,cutting curve in H and K. Draw HO and KL parallel toAG; join C and L ; complete square NABP, drawdiagonals; then on the eight points thus shown draw the curverequired. (Pig. 34.) Example 2.—Draw a circle touching M to left, stand-ing on
Perspective and geometrical drawing adapted to the use of candidates for second and third-class teachers' certificates . Fij?. 34. Here ED = 4^, EA = 2\ DB = 2. Describe semicircle ASD,draw AG and BM J_ to AB, and draw GSM through S, 60 DRAWING. parallel to AB; make AE = AG and AF = AB; join F MPand E MP, also A , D , B Join DG and DM,cutting curve in H and K. Draw HO and KL parallel toAG; join C and L ; complete square NABP, drawdiagonals; then on the eight points thus shown draw the curverequired. (Pig. 34.) Example 2.—Draw a circle touching M to left, stand-ing on and _[_ to it and ; circle to be M in = 6, = 4^ scale ^ = 1^. Fig. 85. Here take A 4 to left, bisect it in G; describe semi-circle, and complpt^ oblong APQB; join GP, GQ, cuttingcurve in P, S ; dviw RF, SH _|_ to AB ; join A Erectat A the peri^-^ndicular AC = AB, and bisect it in X; joinC C. Y., X r. 7., also F MP, G MP, H MP, B MP. At pointsof section v, L, M, E draw parallels to CA; draw diagonals THE CIRCLE. 61 CE, AD, and trace curve between the eight marked points.(Fig. 35.) Example S.—Draw a circle, diameter 4^, directly in front,lying on , centre i within H = 6^ = 4, scale
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Keywords: ., bookcentury1800, booksubjectgeometricald, booksubjectperspective
