Higbee, F. G · New York, John Wiley & Sons · leaf 75
the required intersection AB. 63 64 ESSENTIALS OF DESCRIPTIVE GEOMETRY In case the traces of the given planes do not intersect con-veniently on the drawing, Fig. 53 shows a method of findingthe required intersection without using the intersection of thetraces. T and S are again the given planes, Rr… … Fig. 53. intersection may be found by passing an auxiUary plane Uthrough S and T parallel to H. B and N when joined give theplan view bn and the elevation bn of the required intersectionof the planes S and T. 55. Special Cases, i. Find the intersection of two planeswhen one pair of traces are…
Geometry, Descriptive
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