Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction . 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 inclination to the Fig. 63. For illustration, let the plane RST, Fig. 63, be given, and let it be required jto find the traces of another which will cut into this one in a line of 30° t
Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction . 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 inclination to the Fig. 63. For illustration, let the plane RST, Fig. 63, be given, and let it be required jto find the traces of another which will cut into this one in a line of 30° to the!, and make a dihedral angle of, say, 70° with this given plane. DIHEDRAL ANGLES-OBLIQUE INTERSECTING PLANES 61 From any point V in RS draw a line on the at 30^ to XY. With :•, theplan of V, as centre, bring the plan of this line around by an arc until its lower endis at // in ST. Then, at any convenient place, cross this plan of the intersectionline by the of plane 3, previously made use of in Figs. 60 and 61, and carrythe point c into XY so as to show from the point there obtained the inclinationof plane 3 and its intersection of the given intersection line at P. The bracketline, now measured off at cPj, will give a i)oint which when joined to a will showthe rabattement of intersection of the given plane RST with the plane 3. Applyto this rabattement the angle 70° and so obtain the rabatted inter
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisheretcetc, bookyear191
