A survey of Computer Graphics

The major use of computer graphics is in design processes, Particularly for engineering and architectural systems, but almost all products are now computer designed. Generally referred to as CAD, computer-aided design methods are now routinely used in the design of building, automobiles, aircraft, watercraft, space craft, computers, textiles, and many other products.
For some design applications, objects are first displayed in a wireframe outline form that shows the overall shape and internal features of objects. Wireframe display also show designers to quickly see the effects of interactive adjustments to design shapes.
Software packages for CAD applications typically provide the designer with a multi-window environment. The various displayed windows can show enlarged sections or different views of objects.
The shapes used in a design represent the different network or circuit components. Standard shapes for electrical, electronic and logic circuits are often supplied by the design package.
Animations are often used in CAD applications. Real-time animations using wireframe displays on a video monitor are useful for testing performance of a vehicle or system. When we do not display objects with rendered surfaces, the calculation for each segment of the animation can be performed quickly to produce a smooth real-time motion on the screen. Animations in virtually environment are used to determine how vehicle operators are affected by certain motions.