Elementary linear perspective of form and shadow ... Complete in itself ... For draftsmen, artists, and industrial drawing courses in preparatory and high schools, etc. In two parts.. (1891)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York, J. Wiley & sons · leaf 42
, ee is the point of sight, at a dis-tance equal to eb in front of the vertical plane, and at a distanceequal to e5, above the horizontal plane. From the preceding descriptions, it follows that ae is the horizon-tal projection of % visual ray from the given point aa\ and ae is 32 LINEAR… … Fig. 15. I. e. the perspective plane (58). The latter point being also in thevertical projection of the ray (57,58) is at P, the intersection of aewith ^P, a perpendicular to the ground line at p. Therefore P iathe perspective of aa, as seen from the point ee. 68. In order to find the perspective…
Perspective · Mechanical drawing
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