Inside AutoCAD® 2002

Creating Primitives

AutoCAD 2002 supports six different primitives:

• Box

• Sphere

• Cylinder

• Cone

• Wedge

• Torus

These rather simple solid geometric forms are termed primitives because they can be used in various combinations to produce hundreds of other, more complex solid geometric shapes. Primitives themselves are easy to construct.

Creating a solid box, for example, is as simple as selecting the BOX command from the Solids toolbar, specifying, in turn, the two points that define the opposite corners of the box, and the height. The resulting solid box appears similar to a 3D box created with surfaces. The display of solid objects, however, is quite different in some cases. Consider, for example, a surface and a solid sphere. The surface sphere looks quite ...