P£ffP£^a/Ciy^A^ TO 7-H£PfCTUf?£ Fl.QNE. LINEAR^ F£RSPECT/yeScale e j/^ch = I foor EYE. (H) Fig. 25. ■5/0£S CO/vy£/=7if£^ TO A Po/nr o/v THa Hof^iZ-ON … F£RS/>£CriV£ OF Pa/^ALLLL CtfiCLES Fig. 26. It may be seen illustrated in long cylindrical forms such as boilers, tanks and pipes. i8o. With the exception of the variations stated in Sections 172 to 179 inclusive, the principles of pro-jection drawings apply equally well to perspective drawings.…
Mechanical drawing · Lettering
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