- Computer Aided Design
mainly for the architectural and engineering designs
also in the industries such as the textile, automobiles, aircrafts, watercrafts, computer etc
the objects are first displayed in the wireframe outline that give the deigners the overall shape and the internal structure of the object Realtime animations using the wireframe displays are used for testing the performance of the vehicles and systems. They are used to determine how the vehicle operators are affected by the certain motions.
the architects use interactive graphics methods to lay out floor plans, such positioning of the windows, doors, shelves etc...
- Presentation Graphics
commonly used to summarize financial, statistical, mathematical, economic data for research purposes,managerial reports and other consumer information bulletin and other type of reports .
Typical examples are the bar charts, pie graphs, and the other displays showing the relation between multiple parameters. The three diamensional graphs can provide a more attractive and more effective presentation of the data relationships.
Time charts and the task network layouts are used in the project management to schedule and monitor the progress of the projects.
- Computer Art
used both in the fine art and commercial art applications. The artist use a variety of software as well as hardware products such as painbrush programs, the paintpackages, the prssure sensitive pens etc.
These methods are also used in commercial arts for the creating the logos and other designs, tv advertising spots etc.
Animations are also frequently used in the advertising and the tv commercials where they are created frame by frame, where each frame is rendered and saved as an image. In each successive frame the object motion is simulated by moving the object position slightly from the previous frame. A common graphics mehtod used in many commercials is morphing where one image is transformed into another
- Entertainment
computer graphics is commonly used in the making of motion pictures, motion videos, and television shows. Sometimes they are displayed themselves and sometimes they are combined with the actors and live scenes.
Music vidoes use the graphics in several ways, the objects can be combined with live action or the methods of image processing can be used to transform the person or objects into another.
- Education and Training
computer generated models of physical, financial and econoomic systems are often used as eduacttional aids.
For training applications, special systems are designed, examples of such systems are the simulators used for training the pilots, ship captions, heavy equipment operators, air traffic controll personnel.
Here a viewing screen with multiple panels is mounted in front of the simulator. The keyboard is used to input the parameters affecting the airplance performnance or the environment.
Automobile simulators are used to investigate the behaviour of the drivers in critical situations and then optimizing the vehicle design to maximize the traffic safety.
- Visualization
the scientist, engineers are often to deal with large amount of data that cannot be intrepreted in the numerical form, so once the graphs are plotted with the density values, we can see the overall pattern of the data.
It include both scientific( scientific, engineering, medical) and business visualization
colour coding is one way to visualize a data set.
- Image processing
the difference between computer graphics and image proceesing is that when CG is used to create picture, image processing is used to 1) improving the picture quality 2) machine perception of visual information, as in robotics.
To apply the process of image processing we first digitize the image into an image file and then digital methods can be applied to rearrange the picture parts and enhance the colour separations, improve the quality of the shading etc.
Medical applications also make an extensive use of image processing of techniques for picture enhancements, in tomography and in simualtions of operations.
Image processing and computer graphics are combined in various applications
- Graphical User Interface
all the software packages provide graphical user interface. A major component of GUI is window manager that allows userd to work in many windows simultaneously
interfaces also display the menus and icons for the fast selection of the processing options and the parameter values. The advantage of the icon is that it occupies less space in the screen than the textual description and can be well understood if well designed. The menus will containt the textual description and the icons.
