A textbook on mechanical and electrical engineering (1902)
International Correspondence Schools · Scranton : International Textbook Co. · leaf 298
e lower border of the drawing, and drawthe vertical base line (for theside elevation) 2f inches fromthe left-hand border. De-scribe the circle previouslymentioned in such a positionthat the nearest edges of theoctagon will be ^ inch fromeach base line; the figure maythen be completed in the plan.In… … 40 PRACTICAL PROJECTION § 15 through the points in that portion of the surface farthestfrom the observer; and as the eye of the observer travelsfrom points opposite to M and X, Fig. IG, in tracing thefront elevation, the foot of every line of sight would beprojected on a single line on V P. The…
