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 259
lines, as in the case of pyramids, a fair curve isdrawn through them. Eight points of the base are found in theexamples here given : a number deemed sufficient for ordinarypurposes. Should more points be required, it is only necessaryto select a pyramid having more sides than eight to constructthe… … Fiff. 45. Carry up projectors from g and h till they meet XY; alsofrom k, and produce the same 8 above XY. Join hg and kh. Peoblem 33. To project the same solid resting on its edge, with its base inclinedat an angle o/30° ivith H.P.; its axis to he in a vertical planeparallel to the V.P. Scale ^…
Geometrical drawing
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