Kenison, Ervin, Gardner, Harry W, Lawrence, William Henry, 1868-, Everett, Herbert E. (Herbert Edward), 1863-1932, Gregg, D. A. (David A.), Von Holst, H. V. (Hermann Valentin), 1874-1955, Brown, Frank Chouteau, 1876-1947, Griffin, Charles Lewis, 1867-, Neubecker, William, 1864-, Zapf, Alfred E, American School (Lansing, Ill.) · Chicago, Ill. : [American School of Correspondence] · leaf 285
PERSPECTIVE DRAWING. 50. PROBLEM III. Fig. 16. Having given the vertical and horizontal projection of any line, to find the perspective of its vanishing point. Let the line be given by its vertical ancl horizontal projections (Av and AH), as indicated in the figure. SPV and SPH represent the… … vanishing point of any line, draw through the observer’s eye an element of the system to which the line belongs, and find where this element pierces the picture plane (§ 24 rf). Through SPH draw AXH parallel to AH, and through SPV draw Axv parallel to Av. AXH and Axv represent the two projections…
Mechanical drawing
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