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 314
ace of thiscone is the locus of all lines inclined at the same angle with theH.P., i.e. it determines 0. From A set off AC on XY equal to the length of ah. FromC let fall a perpendicular till it meets the arc &B drawn fromcentre A. Join BA. The angle BAG gives ^, or the inclinationto the V.P.… … Fig. 98. angle at 6 as radius, draw an arc till it meets a perpendicularfrom a. Join ha, which is the required plan. 294 SOLID GEOMETRY Problem 77. The plan and elevaMon of an angle ach, acb being given, to findits traces and true angle. Fig. 99. Produce ca and ch till they meet XY in A and B;…
Geometrical drawing
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