Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 229
etes the outline of the shadow of the plinth. It will be noted that cPc^^ is a 45^ line, which would beexpected since the edge do is perpendicular to V. 49. Considering next the prism B, we find by applying theprojections of the rays of light to the plan, that the front andleft-hand faces are in… … It is to be noted that the ray of light from the point ^ in theplinth A passes through the point r^ in the shade line of theprism B. In finding the shadow of this point at r^ we thereforehave found the shadow also of one end of the shade line n7\Since nr is vertical, its shadow will be vertical on…
Architecture · Building
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