Three-dimensional space - Introduction to AutoCAD 2011: 2D and 3D Design - page 364

Fig. 17.44 Exercise 7 - a rendering

8. Construct suitable polylines to sizes of your own discretion in order to form the two surfaces to form

the box shape shown in Fig. 17.45 with the aid of the Rulesurf tool. Add lighting and a material and
render the surfaces so formed. Construct another three Edgesurf surfaces to form a lid for the box.
Place the surface in a position above the box, add a material and render (Fig. 17.46).

Fig. 17.45 Exercise 8 - the box

Fig. 17.46 Exercise 8 - the box and its lid

9. Fig. 17.47 shows a polyline for each of the 4 objects from which the surface shown in Fig. 17.48 was

obtained. Construct the surface and shade in Shades of Gray .

80 80 80 80

Fig. 17.47 Exercise 9 - one of the polylines from which the surface was obtained