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 543
ngle of 60° with the equator.All the other parallels could be determined in the same way.To determine the meridians of longitude.Assume the quadrant ES to be a plan of one-quarter of thesphere, and the lines from S, d, h, and E to the centre, to be theplan of meridians. From the centre of the… … PRINCIPLES OF MAP PROJECTION 523 i and J. Set off siniilar distances on eacli side of the axis onthe parallel at a, also on the opposite side of the axis on theparallel at h. Draw the quadrant eg, and determine points onthe parallels at c and d in a similar manner. Draw fair curvesthrough these…
Geometrical drawing
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