, it is necessary to construct the shadow of another pointof the line on either of the coordinate planes. Any point couldbe taken, but the ends being definitely projected it is more con-venient to use them. We have already found the shadow of a onH to be aj; the shadow of ^ on H is found at 5f, in… … Fig. 29 ab f C (! rf SHADOWS. 101 shadow of the whole line on H, but only that part of it, ajc,which falls below or in front of GL is actual shadow, Wehave also seen that the shadow of 6 on V is bl, the shadow of aon V is similarly found at oj, and a^hl is the shadow of thewhole line on V, but only…
Mechanical drawing
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