Question

In computer aided design (CAD), solid models can be constructed using:

• A. boundary representation (B-rep)
• B. Bezier curves
• C. B-splines
• D. nonuniform rational B-splines (NURBS)

Hint:

Boundary representation (B-rep) is widely used in CAD for modeling solid objects because it efficiently defines the boundary surfaces of a solid.

Answer 1

The Correct Option is A

In CAD, solid models can be constructed using different methods, but the most commonly used method for representing the boundary of a solid object is boundary representation (B-rep).

Step 1: Understanding B-rep
Boundary representation (B-rep) is a way to represent a 3D object by defining its boundary. A B-rep model consists of vertices, edges, and faces that form the boundary of the object. This method allows precise and flexible representation of complex solid objects in CAD software.

Step 2: Other Methods
Bezier curves and B-splines are primarily used in surface modeling, not solid modeling.
Nonuniform rational B-splines (NURBS) are used in both surface and solid modeling, but they are more complex and primarily used for creating smooth surfaces.

Step 3: Conclusion
Therefore, the correct answer is (A) boundary representation (B-rep), as it is specifically used for constructing solid models in CAD.