Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 220
ane. E,^ is also the V projection of the umh^a of the point a andit will be seen that the shadow of a on Y is the intersection of itsumbra with V. 176 SHADES AND SHADOWS 20. Fio;. G shows the construction for lindino; the shadow ofa point a on H. 21. Fio;. 7 shows the construction for finding; the… … shadow of the point a, situated as in Fig. 5, that is, nearer the Vplane than the II. The actual shadow would in this case fall onV, but it is sometimes necessary to find its imaginary shadow on H.The method of determining this is similar to that explained inconnection with Fig. 5. Draw R^ until it…
Architecture · Building
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