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 398
jections of the given cone, and ct, a,of the given point. Draw lines from the projectionsof the vertex through act. Thesegive the H. trace of the line at e.Draw the H.T. through e, tangential tothe circle A. Draw the line ch parallel to theH.T. At h erect a perpendicular tillit meets a horizontal… … , Problem 147. To determine the traces and line of contact of a T.P. to a givenright cone, inclined to the H.P., hut with its axis parallel tothe Y.P.; the T.P. to he parcdlel to a given line. Pig. 177. Let A and A be the projections of the given cone, and ah,ah, of the given line. 37S SOLID…
Geometrical drawing
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