Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 128
Fig. 156. PROB. 28 —To find the shadow of a right line on V.P.and H.P: Let AB, Fig. 157, be the given line. Find the shadows … Fig. 157. U4 MECHANICAL DRAWING. of the points A and B by passing rays through each of theirprojections to make angles of 450 with G.L. The shadow ofAH on H.P. is found at AXH, and that of BH at Bf, where therays through these points intersect the H.P. The shadowoi Av on V.P. is found at^rand that…