Chapter 4 - Normal Surfaces in Orthographic Projections

Example 4-5

(Next look at surface (26,19,20,21,22,23,24,25))

(Go back)

To complete the drawing, look for horizontal lines which have not been considered yet. Line (9,8) is the edge view of hidden surface (28,29,44,43). Projection gives hidden line (A,B) in the side view. Line (15,16) is also the edge view of hidden surface (28,29,44,43). Projection gives line (C,D). Line (1,4) is the back of the object, hidden surface (27,30,31,32,33,40,41,42) in the front view. Projection gives line (E,F).