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 317
oject a line from this point, parallel and, equal to thegiven line, so that lohen the ends of the lines are joined theywill form a parallelogram. Frovi these projections to developthe true form of the p)ctrallelogram. Fig. 101. From c draw cd parallel to aJj, and equal to it in length.Join he and… … Fig. 101. triangles. Take one of these triangles hcd, and find the truelengths of its sides, as in the preceding problem. Then constructthe triangle BCD from these lengths, after which construct asimilar triangle DAB on the line DB, which gives the trueshape of the parallelogram. PLANES. The lines…
Geometrical drawing
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