Computer Aided Design

Among the various use of computer, Computer Aided Design(CAD) is a powerful tool required for the engineers. Engineers use CAD to design buildings, automobiles, aircraft, watercraft, etc. For some design applications, objects are first displayed in a wireframe out-line form that shows the overall shape and internal features of objects. Software packages for CAD applications typically provide the designer with a multi-window environment. The shapes used in a design represent the different network or circuit components. Animations are often used in CAD applications. They are useful for testing performance of a vehicle or system. Animations in virtual reality environment are useful for determining how vehicles operators are affected by certain motions. Using animation allows us to know what effects are caused by various movements and environment. When object design are complete, realistic lighting models and surface rendering are applied to produce displays that will show the appearance of the final product.