Introduction

Successful implementation of a solid modeler is a mixture of the following key factors:

• user interface and platform
• internal database and its robustness
• industry standards and compatibility with other software

Solid modeling is covered by two major representation schemata: Constructive Solid Geometry (CSG) [Hoffmann, 1989, Mortenson, 1997] and boundary representation (B-rep). In CSG a solid is represented with Boolean expression of primitive solid objects of simpler structure. B-rep describes oriented surfaces with its vertices, edges and faces. Voxelization is another solid description schemata primarily used for very complex geometry such as medical images.

 
• CSG representation.
• Boolean operations.
• Superquadrics