Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 131
AL DRAWING. The shadow of EF is EVFX, of FG is Fx GXJ of GD is GXDX,of Z>^ is DXBV. The shadows of the edges AE and .4.5coincide with the lines. These shadows are found by thesame rules used for finding the shadows of a line in Prob. 28.The line of shadow is BVD,GXFXFVEVAVDV. The visible lineof… … ^ H H The line of shade of the abacus is seen to be the edgesABXH and AXHCXH. The plane of rays through edge AXHBXHis per. to V.P., and the line AXVEV is its vert. proj. or trace;its hor. trace is AXHEH. The shadow on the left side face, isvertically projected in the point Exv where the plane of…
