File:Perspective and geometrical drawing adapted to the use of candidates for second and third-class teachers' certificates (1887) (14596486149).jpg

Identifier: perspectivegeome01mcgu (find matches)
Title: Perspective and geometrical drawing adapted to the use of candidates for second and third-class teachers' certificates
Year: 1887 (1880s)
Authors: McGuirl, Thomas H. (from old catalog)
Subjects: Geometrical drawing Perspective
Publisher: Toronto, W. Briggs
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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Text Appearing Before Image:
ioned in reference tothe P.P. or G.P. In thecube this is quite un-necessary, as all the sidesare equal.oi Example 1,—Draw a.fcjD plinth whose dimensions^ are 4 x 3^ x 2 (4 long,W wide and 2 thick),the side 4 x 3 rests onthe ground plane, andside 3 X 2^ is parallel toP.P. and 2from it; theplinth is 2 to the left.H = 6^L.D. = 4,scale Draw H.L., B.L. andfind C.Y.,OandMPasbefore. Take B, 2 toleft, and A, 3 to leftof B; also M, 4 toright of O. On AB THE PLINTH. 69 construct the oblong ABDC, 3^x2; join C O.V., D C.V.,A C.V., B C.V.; also O MP and M MP. Prom points K, H,where B C. V. intersects O MP and M MP, erect KN and HGparallel to BD; and through N, G draw NE and GP paral-lel to CD, Draw EL J_ ^ndPG-EN-LK-AB-3^GH-NK-DB-2, etc. Example 2,—Draw a flight of four steps, each step 4 x 1X r. The ends of the steps are coincident with the P.P., andi to right. H - 6, L.D. - i, scale ^ ^ ^*
Text Appearing After Image:
Fig. 40. Here take A, i to right of E, and B 4^ to right of A; onAB describe square ABDC, and divide it into sixteen equalsquares; join each angle, as shown in figure, with the C.Y.;join also E MP, cutting A C. V. in P; draw FG parallel toAC, GS J_ to GF, etc. Then FG - AK = 1, tmd GS = KJST= r, etc.; and AF = AE = AB = 4. (Fig. 40.) 70 DRAWING. Example S,—Draw same, with ends perpendicular to P.P.,one step being coincident with it and i to left.

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