topic_- introduction of computer graphics.
- 1. NAME:- ANIKET KUMAR PANDEY. ID:-18STUCDDN01005. TOPIC:- INTRODUCTION OF COMPUTER GRAPHICS.
- 2. INTRODUCTION TO COMPUTER GRAPHICS. Graphics is defined as any sketch or a drawing or a special network that pictorially represents some meaningful information. Computer Graphics is used where a set of image needs to be manipulated or the creation of the image in the form of pixels and is drawn on the computer. Computer Graphics can be used in digital photography, film,entertainment, electronic gadgets and all other core technologies which are required. It is a vast subject and area in the field of computer science. Computer Graphics can be used in UI design, rendering, geometric object, animation and many more.In most area, computer graphics is an abbreviation of CG. There are several tools used for implementation of Computer Graphics. The basic is the <graphics.h> header file in Turbo-C, Unity for advanced and even OpenGL can be used for it’s Implementation.
- 3. Computer Graphics refers to several things: ● The manipulation and the representation of the image or the data in a graphical manner. ● Various technology required for the creation and manipulation. ● Digital synthesis and its manipulation.
- 4. TYPES OF COMPUTER GRAPHICS ● Raster Graphics: ● Vector Graphics:
- 5. ● Raster Graphics: In computer graphics and digital photography, a raster graphics or bitmap image is a dot matrix data structure that represents a generally rectangular grid of pixels (points of color), viewable via a bitmapped display (monitor), paper, or other display medium. Raster images are stored in image files with varying dissemination, production, generation, and acquisition formats.
- 6. The printing and prepress industries know raster graphics as contones (from "continuous tones"). The opposite to contones is "line work", usually implemented as vector graphics in digital systems. A bitmap is a rectangular grid of pixels, with each pixel's color being specified by a number of bits. A bitmap might be created for storage in the display's video memory or as a device-independent bitmap file. A raster is technically characterized by the width and height of the image in pixels and by the number of bits per pixel.
- 7. Vector Graphics: Vector graphics are computer graphics images that are defined in terms of points on a Cartesian plane, which are connected by lines and curves to form polygons and other shapes. Vector graphics have the unique advantage over raster graphics in that the points, lines, and curves may be scaled up or down to any resolution with no aliasing. The points determine the direction of the vector path; each path may have various properties including values for stroke color, shape, curve, thickness, and fill.
- 8. Advantages: 1. High quality graphics display provide way to communicate with computer. 2. It is possible to produce animation. 3. Can be used to cantrol animation such as speed ,total scene in view etc. 4. Provides facility of update dynamic which can be used to change shape ,colour and other properties of object in view .
- 9. Application Areas. 1. Computer Aided Design(CAD) 2. Presentation Graphics 3. Computer Art 4. Education and training 5. Visualization
- 10. . 1.CAD:- Computer Graphics plays a key role in CAD/CAM to create Virtual world for digital prototyping. Graphics enables a designer to interactively synthesize various product shapes, visualize them in different settings and analyze their functional performance. 2. Presentation graphics:- used to summarize the financial, mathematical scientific and econimic data. Typical examples are bar charts ,line graphs,pie charts etc.
- 11. . 3.Computer Art:- Artist uses special purpose hardware and programs that provides facilities for designing object shapes and specifying object motion . Ex:- pixel paint,super paint etc. 4. Education and training:- Computer generated models of physical,financial and economic system are often used as educationl aids. various kinds of simulators program can be used to provide the trainings .ex:- Automobile driving simulator.
- 12. . 5.Visualization:- various techniques can be used to represent the large amount obtained from scientific ,medical or business analysis. These includes color coding ,contour plots,graphs ,charts etc.
- 13. . Thank you