Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 349
Fig. 144. Problem 114. To determine the traces of aplane containing a givenline AB inclined to hothlolanes of projection, theplane to he inclined atcm angle of &0° with theH.P. Pig. 145. Let ah, ah, be the pro-jections of the given line. Draw the projector aa,and produce ah till it meetsXY in… … Fi^. 145. XXVII LINES CONTAINED BY PLANES 329 it meets a projector drawn from c in c. From a draw the linead, making an angle of 60° with XY, With a as centre, andradius ad, draw an arc. From c draw a line tangential to thearc till it meets XY in e. Join ea. ec is the H.T., and ea theV.T. of the…
Geometrical drawing
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