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 364
the points e and /, dropprojectors which will intersect the plan in the lines eh and fg.afgche is the plan of the cut surface of the cube, and eacf theelevation. The sectional surface can be constructed by rotating theprojected surface of the section on either the H.T. or V.T. CHAP. XXX SECTIONS OF… … n a Fig. 155. the corresponding points on the V.T. from XY; e.g. to obtainthe point C, set off kC equal to ec, and so on with each of theother points. Join them, as shown, to complete the constructionof the sectional surface. To rotate the sectional surface on the Y.T. Draw perpen-diculars from…
Geometrical drawing
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