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 348
line at rightangles to XY and cutting it in c, andthe V.T. in c. With c as centre, andradii ca and cd, draw arcs meeting XYin A and e. Join ec. Draw a pro-jector from A till it meets ec in A.Draw Aa parallel to XY. Prom adraw the line af making an angle of30° with XY. With c as centre, andradius… … 328 SOLID GEOMETRY Problem 113. To determine the traces of a ^j/«%e containing a given hori-zontal line AB, and inclined at an angle of 30° with theH.P. Fig. 144. Let ah, ab, be the projections of the given line. Produce ah till it meetsXY in c. Draw a projectorto c till it meets ab pro-duced in c.…
Geometrical drawing
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