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 307
em 69. To project a line 8| long, inclined to the H.P. at an angle of 45°,with its lower end IV above the H.P. and 3 from the V.P., 286 SOLID GEOMETRY chap. hut in a vertibal plane inclined to the V.P. at an angle of30. Find its \.T. and H.T. Scale i fidl size. Fig. 89. Fix point c 1|- above XY;… … Fig. 88. Fig. 89. radius eh, draw the arc hd. From c draw the line cd at anangle of 30° with cL, till it meets the arc drawn from L in d.From d draw the projector del till it meets a horizontal linedrawn from L. Join dc. Produce cd till it meets XY in E. From E draw a perpen-dicular to XY till it…
Geometrical drawing
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