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 299
ame manner with the other three points.Then BO is the required distance of B, CO of C, and DO ofD from XY. LINES.To illustrate the projection of lines, we will for the present restrict ourselves to the twoco-ordinate planes of the firstdihedral angle (Fig, 81). Take the piece of card-board we used… … Fig. 81. ORTHOGRAPHIC PROJECTION 279 the horizontal projectors, and the line ah its horizontal projection.If we draw lines Aa and B& perpendicular to the V.P. from thepoints A and B, they represent the vertical projectors, and theline ah its vertical projection. We will now place the piece of…
Geometrical drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
