Simplified mechanical perspective for the use of ... schools (1909)
Frederick, Frank Forrest, 1866-1942 · Peoria, Ill., The Manual arts press · leaf 53
new line (H) is drawnthe required distance above P. L.which is placed wherever con-venient. As A, Fig. 16, is found to bedistance X-A from Tr. V. PL, the left at 45° with the vertical plane and up or down at 45° with the hori-zontal plane is constructed as in Fig. 17. Distance V. P. L.—U. V. P.L.… … 48
Perspective
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