Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 260
o it. 208 SHADES AND SHADOWS 39 (1) It will be of tlie 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 cau be found bylindino- the shadow of its center, by Problem XVII, and with thatas a center describing a circle of the same… … XYII. On that point of the shadow constmct a similar squarewhose side equals 1^ inches. 89. Problem XXII. To construct the shadow on V of acircular plane which is parallel to H, or which lies in a profileplane. Given tOo^l/^ the projection of a circular plane perpendicularto Y and H, 2 inches in…
Architecture · Building
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