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 78
h:^ Fig. 36. 68 LI^STEAE PEKSPECTIVE. This ray pierces the horizontal plane at l^ whoso vertical projectionwhich must be in the ground line (45), is L. Therefore the point … AE Fig. 37. tself is at l^ which is therefore the shadow of AA on the horizontallane.The shadow of the lower front edge, ak.-ah\ of the abacus,upon the front of the pillar, will be parallel to itself (98). Whenthe direction of a line is known, one point in it is sufficient todetermine it; hence, to…
Perspective · Mechanical drawing
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