Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction (1915)
Armstrong, Henry F. (Henry Fry), 1868- · New York, J. Wiley & sons, inc.; [etc., etc.] · leaf 79
n of the point where Aand B meet, to the circumference of the semicircle, we obtain the rabattement ofA and B as seen at ^2 and Bo, and so, true lengths are now shown for these linesA and B. Next consider the case when the lines A, B and C are at different angles tothe H.P., and let A be at 25° and… … Fig. 71 plan of C will be perpendicular to this H.T. Hne. This is shown by the arrow linein the figure. The H.T. of this arrow Hne can now be found by drawing the H.T.of the plane of B and C perpendicular to the plan A, or by drawing the H.T. ofthe plane of A and C perpendicular to plan B. This…
Geometry, Descriptive
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