Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 255
\B 208 SHADES AND SHADOWS 30 (1) It will be of the same form as that of the given surface. (2) It will be of the same area. If the plane surface is a circle, the shadow can be found bytinding the shadow of its center, by Problem XVII, and with thatas a center describing a circle of the same radius… … XYII. On that point of the shadow construct a similar squarewhose side equals 1^ inches, 80. Problem XXII. To construct the shadow on V of acircular plane which is parallel to H, or which lies in a profileplane. Given a^o^h, the projection of a circular plane perpendicularto Y and H, 2 inches in…
Architecture · Building · Carpentry
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