Computer Graphics Applications

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Computer Graphics Applications

  1. 1. 1
  2. 2. Why Computer graphics – Graphics is cool • I like to see what I’m doing • I like to show people what I’m doing – Graphics is interesting • Involves simulation, algorithms, architecture… – Almost no area in which graphical displays cannot be used 2
  3. 3. Why should we study Graphics? • Many of the leading scientists through the ages have been ‘visual thinkers’… – Leonardo da Vinci – Einstein – Clerk Maxwell 3
  4. 4. Graphics Applications – Computer Aided Design (CAD) – Presentation Graphics – Computer Art – Entertainment – Education and Training – Visualization – Image Processing – Graphical User Interfaces (GUI) 4
  5. 5. – Computer Aided Design (CAD) – Design buildings, automobiles, aircraft, watercraft, spacecraft, computers, textiles, and many other products – Wireframe & Surface Rendering – Simulation of Vehicle Performance 5
  6. 6. Wireframe & Surface Rendered Display 6
  7. 7. 7
  8. 8. Presentation Graphics – Illustrations for reports – Summarize financial, statistical, and economic data for research reports, managerial reports, consumer information bulletins, and other types of reports. – Presentation Slides • Bar charts, Line graphs, Pie charts, etc., – Project Management (Schedule & Progress) 8
  9. 9. Computer Art – Fine Art & Commercial Art – Designing object Shapes and specifying object motions – Paintbrush programs (Lumena, PixelPaint, SuperPaint) – – – – Mathematics Packages (Mathematica) Animation Packages (Anim8or, Swish,..) Graphics Tablet (Digitizer) & Stylus Moving Objects (24 frames per second) 9
  10. 10. Fractals – A fractal is "a rough or fragmented geometric shape that can be subdivided in parts, each of which is (at least approximately) a reduced/size copy of the whole". – The term was coined by Benoît Mandelbrot in 1975 and was derived from the Latin fractus meaning broken or fractured. 10
  11. 11. Fractals 11
  12. 12. Even 2000 times magnification of the Mandelbrot set uncovers fine detail resembling the full set. A fractal that models the surface of a mountain 12
  13. 13. Entertainment – Motion pictures, music videos, and television shows. – Sometimes the graphics scenes are displayed by themselves, and sometimes graphic objects are combined with the actors and live scenes. – Morphing 13
  14. 14. Motion Pictures Series of still photographs on film, projected in rapid succession onto a screen World's first motion picture film by Louis Le Prince, 1888 14
  15. 15. Morphing Morphing is a special effect in motion pictures and animations that changes (or morphs) one image into another through a seamless transition 15
  16. 16. Education and Training – Computer generated models of physical, financial, and economic systems are often used as educational aids. – It helps the trainees to understand the operation of the system. – Simulators for practice sessions or training of ship captains, aircraft pilots, heavy equipment operators, and air traffic-control personnel. 16
  17. 17. Simulation A simulation is an imitation of some real thing, state of affairs, or process. Wooden mechanical horse simulator during WWI. 17
  18. 18. Flight Simulator This 20' dome in the Netherlands has an actual cockpit inside. The simulated scenes are projected onto the dome, and the hydraulics move the unit. 18
  19. 19. Visualization – Scientists, engineers, medical personnel, business analysis, and others often need to analyze large amounts of information or to study the behavior of certain processes. – tedious & Ineffective – To overcome this, a technique which trends and patterns apparently is used called visualization. – Numerical modeling of thunderstorms, Protein modeling, Molecular structure, an air pollution study, etc., – Scientific Visualization (stored as graphics packages for scientific studies) – Business Visualization (stored as data sets for commerce applications) 19
  20. 20. Medical Visualization 20
  21. 21. Scientific Visualization 21
  22. 22. 22
  23. 23. Image Processing – Image Processing – Applies techniques to modify or interpret existing pictures – Computer Graphics – to create a picture 23
  24. 24. Graphical User Interfaces – Windows, Menus, Icons and other graphical symbols – Command User Interface & Graphical User Interface 24
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