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 43
Example 1.—To find the Perspective of a Vertical SquarePrism, situated as shown in Fig. 8. From Fig. 8 it is evident, that when the perspective plane isrevolved backward, the lines cC and dT) of the elevation (55a) willexactly fall upon the lines ch and da of the plan. Hence, in Fig. 16,ABCD and cd… … ^*^!■-^ Fig. 16. Let EE be the position of the eye. The rays from c and C,being one directly over the other, have the same horizontal projec-tion, CE. Then by (67) CE —cE is the visual ray (58^>) from thefront left hand corner, Cc, of the base, and/* is the perspectiveof that corner. CE — CE is…
Perspective · Mechanical drawing
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