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 515
s those in theupper half of the sphere. Draw a series of contoursto the plan to represent thedifferent levels in the elevation,as follows :— With 0 as centre, and radiiequal to half the lengths of thehorizontal lines of the sphere, inelevation^ draw circles : • e.g. withradius ah draw the circle… … Fig. 281. XXXV ITsTERPENETRATION OF SOLIDS 495 projectors from these points will determine six points on eachof the lines li, h. Determine the points at the other levels inthe same manner, and draw fair curves through them. PROBLE^r 232. 1. To determine the interpenetration of a given sphere %oitli…
Geometrical drawing
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