. The practical draughtsman's book of industrial design, and machinist's and engineer's drawing companion: forming a complete course of mechanical, engineering, and architectural drawing . tion of light and shade. It now only remains to find theshadow cast by the cube on the plane, l t. 268. When the object rests on the horizontal plane, as supposedin this case, and is at a greater distance from the vertical plane thanis equal to its height, the entire shadow cast by it will be in thehorizontal plane ; and to determine its outline here, it is merelyrequisite to draw straight lines from each co
. The practical draughtsman's book of industrial design, and machinist's and engineer's drawing companion: forming a complete course of mechanical, engineering, and architectural drawing . tion of light and shade. It now only remains to find theshadow cast by the cube on the plane, l t. 268. When the object rests on the horizontal plane, as supposedin this case, and is at a greater distance from the vertical plane thanis equal to its height, the entire shadow cast by it will be in thehorizontal plane ; and to determine its outline here, it is merelyrequisite to draw straight lines from each corner of the cube, re-presenting the rays of light, as c c, b b, d d, parallel to R, and tofind the points, c, b, d, in which these lines meet the plane. To effect this, through the points, c, and a, fig. 1 a, the pro-jections of the two first, bd, draw the rays, c c, and a b, paral-lel to r, and meeting the base line, L t, in c and b. If now,through these points, we draw perpendiculars to the base line, as c c,ib b, these will cut the first rays in c, 6, and d. The contour ofthe shadow cast is, in consequence, limited by the lines cc, cb,b d, and d D. Practical Draughtsman Hate Kio-. F.
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