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 133
ing thedistances of the points of the perspective plan from its horizon.Then all points in these perpendiculars which, in space, are inthe same horizontal plane can be limited at once, as the verticalsat/and^are in Fig. 49, or those at B and e are in Fig. 47. This method is very useful in… … r~4gt-> - Fio. 2.
Perspective · Mechanical drawing
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