Inside AutoCAD® 2002

Basic Surfacing Techniques

In the previous chapter the techniques used to create 3D lines and polylines were discussed. Objects modeled with such lines are called wireframe models. To create a true 3D object, however, surfaces must be applied across or around the edges of the wire frame. Such surfaces can then be used to hide lines and other surfaces that lie “behind” other surfaces in any particular view. Surfaces can also have hatch patterns and even materials applied to them to yield more realistic-looking objects.

In some cases, you need to create the wireframe “skeleton” of an object before you create the surfaces, using the wireframe as a starting point from which to apply the surfaces. This method employs two relatively simple 3D objects: ...