Shades, Shadows And Linear Perspective for Students of Engineering Or Architecture, Professional Draughtsmen, Etc
The book Shades, Shadows And Linear Perspective for Students of Engineering Or Architecture, Professional Draughtsmen, Etc was written by author Willson, Frederick Newton, 1855-1939 Here you can read free online of Shades, Shadows And Linear Perspective for Students of Engineering Or Architecture, Professional Draughtsmen, Etc book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Shades, Shadows And Linear Perspective for Students of Engineering Or Architecture, Professional Draughtsmen, Etc a good or bad book?
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It is so placed that one of its faces — A BCD — is in the perspective plane, making that face its own perspective. Visual rays, S F, S E, S H, inter- sect the plane V at points /, e, h, which are the perspectives of the original points. Joined with A, D and Q they give — with A D OB — the perspective of that part of the block which is visible from S. To find the trace, /, of ray S F, a vertical visual plane may be taken through the ray. (? s is the horizontal trace of such a plane, and om its v...ertical trace. The ray meets the latter at /. Similarly for other rays. Other methods are given in later articles. The figure illustrates the fact that the perspective of a vertical line is always vertical; for the verti- cal visual plane through EH must cut a vertical plane V in a vertical line, part of which is the perspective eh of the original. LINEAR PERSPECTIVE.— GENERAL DEFINITIONS. 229 601. Horizon. The point of sight, S, is projected upon the picture plane at s'. A horizontal visual plane will cut the perspective plane in a horizontal line through s', called the horizon.
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