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 350
e 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 plane required. Pkoble.m 115. To determine the traces of a plane containing tioo givenintersecting… … ET. Fig. 146. till it meets XY in e. Produce ah till it meets the projectorfrom e. This is the H.T. of line AB. Find the traces of the line AC in the same way. Linesdrawn through these traces till they meet on XY are the tracesof the plane required. Note.—The traces of a plane to contain three…
Geometrical drawing
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