3D geometric modeling has a lot of advantages in the fields of design and manufacturing. Many manufacturing process and production lines are using 3D geometric modeling and virtual products. It helps to reduce cost and time.
Macro system is widely used in cutting and welding process to improve productivity. Conventional macro input system is using 2D text. Although its simplicity and promptitude have some benefits, it can sometimes lead to wrong product. In this paper, the conventional text macro input system is improved by addition of 3D geometric modeling technique. It is easy to find the faults to be able to occur before or during the cutting operations and fix it.
The 3D geometric modeling of structural parts of a ship was carried out by scene graph method which makes very complex shape simply construct. The scene graph method is implemented by Open-Inventor which is an object-oriented, cross-platform 3D graphics toolkit for the development of industrial-strength interactive 3D graphics applications.