3D CAD is one of the most important technologies of the 90s for the engineering and manufacturing world. 3D CAD systems can provide a competitive edge in the development of new products. This book presents the development of a three-dimensional CAD system and its wide range of applications. It describes the concepts of solid models, and the theory of curves and surfaces and it illustrates these concepts through "reals world" applications.
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1 Outline of CAD/CAM/CAE.- 1.1 Introduction.- 1.2 CAD System.- 1.3 CAM
System.- 1.4 CAE System.- 1.5 3D CAD Systems.- 2 3D CAD Systems and Solid
Models.- 2.1 Introduction.- 2.2 How to Represent Solids.- 2.3 Advantages of a
Solid Modeler.- 2.4 Representation of Objects in a Solid Modeler.- 2.5
Comparison of CSG and Boundary Representations.- 3 Solid Modeler DESIGNBASE.-
3.1 Introduction.- 3.2 Features of DESIGNBASE.- 3.3 Software Structure of
DESIGNBASE.- 3.4 Data Structure of Boundary Representations.- 3.5 Primitive
Operations.- 3.6 An Example of Primitive Operations.- 4 Free-Form Curves.-
4.1 Introduction.- 4.2 Parametric Curves.- 4.3 Bézier Curves.- 4.4 Rational
Bézier Curves.- 4.5 B-Spline Curves.- 4.6 NURBS.- 4.7 Programs.- 5 Free-Form
Surfaces.- 5.1 Introduction.- 5.2 Quadric Surfaces.- 5.3 Parametric Patches.-
5.4 Coons Surfaces.- 5.5 Bézier Surfaces.- 5.6 Rational Bézier Surfaces.- 5.7
NURBS.- 5.8 Gregory Patches.- 5.9 Rational Boundary Gregory Patches.- 5.10
Connection of Patches.- 5.11 Interpolation of Patches.- 5.12 Transformation
of Patches.- 5.13 Programs.- 6 Intersection Calculations.- 6.1 Introduction.-
6.2 Intersection Calculations Between Curves.- 6.3 Intersection Calculations
Between a Curve and a Surface.- 6.4 Intersection Calculations Between
Surfaces.- 6.5 Intersection Calculation in DESIGNBASE.- 7 Local Operations.-
7.1 Introduction.- 7.2 Creation and Modification of Solids with Surfaces.-
7.3 Primitive Solid Generation.- 7.4 Local Modification Operations.- 7.5
Programs of Local Operations.- 8 Boolean Operations.- 8.1 Introduction.- 8.2
Boolean Operations of Solids with Free-Form Surfaces and Their Problems.- 8.3
Boolean Operation Algorithm in DESIGNBASE.- 9 Rounding Operation.- 9.1
Introduction.- 9.2 Problems with the Rounding Operation.- 9.3Rounding
Operation in DESIGNBASE.- 9.4 Example of Rounding Operation Execution.- 9.5
Algorithm of Rounding Operation.- 9.6 How to Calculate Trajectories Drawn by
Tangent Points.- 10 Functions in Aiding Design.- 10.1 Introduction.- 10.2
Parametric Design.- 10.3 UNDO · REDO Operations.- 10.4 Creation of Similar
Shapes.- 11 Rendering.- 11.1 Introduction.- 11.2 Color Components and Shading
Model.- 11.3 Z-Buffer Method.- 11.4 Scan Line Method.- 11.5 Ray Tracing
Method.- 11.6 Mapping Method.- 12 Mass Properties.- 12.1 Introduction.- 12.2
How to Obtain Surface Area.- 12.3 How to Obtain Volume, Center of Gravity,
and Moment of Inertia.- 12.4 Mass Property Calculation in DESIGNBASE.- 13
3-Dimensional Modeling Method.- 13.1 Introduction.- 13.2 Resin Model Creation
System.- 13.3 Link with Modeler.- 13.4 DESIGNBASE and Resin Model Creation
System.- 14 Solid Models and Structure Analysis.- 14.1 Introduction.- 14.2
History of Finite Element Method.- 14.3 Finite Element Method and Solid
Models.- 14.4 3-Dimensional Mesh Generation.- 14.5 KSWAD Integrated CAE
System.- References.
