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 69
ng v to k. If the H.T. of this last plane, marked/F, is parallel to AT, of course the \.T.of it, passing through ? \\i\\ also be parallel to Al^. Also, if ^he bisector Pyf runs nearly parallel to H.T. 3. so that there is notroom enough to find/, then the direction of the line/// may be obtained by… … It will now be seen, that, by supposing the rabattement of the angle betweentwo planes, and working conversely to the method in Fig. 6i, it will be possibleto find the traces of a second plane at a given angle to a first one, whose tracesmay be given, and intersecting it in a line of given…
Geometry, Descriptive
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
