Introduction to Computer Graphics Survey (Chapter 1) Graphics Systems (Chapter 2)

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Presentation transcript:

Introduction to Computer Graphics Survey (Chapter 1) Graphics Systems (Chapter 2)

Intro to Computer Graphics What is Computer Graphics? “Perhaps the best way to define computer graphics is to find out what it is not. It is not a machine. It is not a computer, nor a group of computer programs. It is not the know-how of a graphic designer, a programmer, a writer, a motion picture specialist, or a reproduction specialist. Computer graphics is all these – a consciously managed and documented technology directed toward communicating information accurately and descriptively.” Computer Graphics, by William A. Fetter, 1966

Intro to Computer Graphics What is CG used for? What can you think of?

Intro to Computer Graphics What is CG used for? Graphs and charts (visualization of data) Graphical User Interfaces (GUI) Web pages Computer Aided Design (CAD) Entertainment (games, music) Art Virtual Reality (training simulators)

Intro to Computer Graphics 2D versus 3D

Intro to Computer Graphics Display Devices Raster systems Vector Systems

Intro to Computer Graphics Video Display Systems

Intro to Computer Graphics Output Devices

Intro to Computer Graphics Raster-Scan CRT

Intro to Computer Graphics Cathode Ray Tube Deflection can be –magnetic –electrostatic

Intro to Computer Graphics Color CRT

Intro to Computer Graphics 3D Displays

Intro to Computer Graphics Input Devices How many input devices can you think of that could be useful for graphical applications?

Intro to Computer Graphics Input Devices Keyboard Mouse Tablet Joystick Digitizer Gloves

Intro to Computer Graphics Graphics Software

Intro to Computer Graphics