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 65
£_ … ^E- E Fig. 30. To complete the horizontal projection of the cone, merely drawthe tangents from V to the ellipse just drawn. The arc p^n be-tween these tangents, is invisible, being on the under side of the cone. Having now the complete projections of the cone, and the point ofsight EE, the…
Perspective · Mechanical drawing
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