Higbee, F. G · New York, John Wiley & Sons · leaf 20
A / \\11 \ r1 \\ \ \ \ \ \ \ \ \ Vv Fig. 7. ORTHOGRAPHIC PROJECTION 9 of indicating the location of an object with respect to the planesof projection. When an object is said to be in the first quadrantit means simply that it is above the H plane and in front of theV plane; therefore its plan view… … First Quadrant. Second Quadrant. Third Quadrant. Fourth Quadrant.Plan below G. L. and H and V coinciding Plan above G. L. and H and V coincidingelevation a6o!)e G. L. above G.L. There-elevation below G. L. below G. L. There-fore plan and eleva- fore both views be-tionbothaftoiieG.L. low G. L.Fig.…
Geometry, Descriptive
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