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 347
aw the projectors aa and cc. Join ah and cV, either of which is the vertical projection of a line fulfilling the required conditions. Problem 110. From, a given point A to project a lineforming an angle o/ 60° ivith theH.P., and contained hy a givenplane. Fig. 142. Let H.T. and V.T. be the traces… … LINES CONTAINED BY PLANES 327 60° with XY. Draw the perpendicular Cc till it meets a linefrom a parallel to XY. With a as centre, and radius ac, drawan arc till it meets XY. This arc intersects the H.T. in d and e.Join da and ca. Draw projectors from d and e. Join da andea. da and da are the…
Geometrical drawing
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