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 288
o the V.P. Draw the line X^Y^ at an angle of 16° with the line ac, andassume it to be a new ground line. Draw the lines aa!, hb, and CHAP. XXII ON THE ALTERATION OF THE GROUND LINE 267 dd at right angles to this ground line, and make the heights ofthese respective lines above it equal to the… … Fig. 68. and from this construct its plan inclined to the H.P. at an angleof 12i°. Draw the line XY at an angle of 12|° with the bottom ofthe dressing-case. From the various points in the elevation drawlines at right angles to XY, and make the width ca equal to thecorresponding line in the plan…
Geometrical drawing
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