Solid modeling

Solid modeling is a consistent set of principles for mathematical and computer modeling of three-dimensional solids. It is a fundamental aspect of Computer-aided design (CAD) software engineering, involving the creation and manipulation of geometric models.

Overview

Solid modeling is distinguished from other areas of geometric modeling by its emphasis on physical fidelity. Together with the related field of Geometric modeling, it provides the geometric data required for the Computer-aided engineering (CAE) and Computer-aided manufacturing (CAM) that are integral to modern product development processes.

Techniques

Solid modeling techniques are classified into two main categories: Constructive Solid Geometry (CSG) and Boundary Representation (B-Rep).

Constructive Solid Geometry

Constructive Solid Geometry (CSG) is a technique used in solid modeling. Complex models are created by combining simpler objects, using operations such as union, intersection, and difference.

Boundary Representation

Boundary Representation (B-Rep) is another technique used in solid modeling. In this method, a solid is represented by its bounding surfaces. It is the most common form of representation in commercial solid modeling systems.

Applications

Solid modeling is used in various fields such as Mechanical engineering, Civil engineering, Aerospace engineering, and Architecture. It is also used in 3D printing, Virtual reality, and Video game design.

See also

• Computer-aided geometric design
• Parametric modeling
• Direct modeling
• Comparison of CAD editors for CAE