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VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
VA2440 Class 04
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VA2440 Class 04

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Transcript

  • 1. VA2440 – Class 04
    Graphical User Interface
  • 2. Pointing device
  • 3. Mouse
  • 4. Mouse states
    Mouse idle
    move
    press
    release
    stop
    Mouse down
    Mouse move
    press
    move
    release
    stop
    Mouse drag
  • 5. Mouse states and actions
    We can assign meanings to the following states and actions.
  • Mouse actions
    By using the mouse states and actions in previous slide, can you describe the following action words?
    Approach
    Perform
    Commit
    Retreat
  • 13. GEM implementation
    We are going to use
    gemmouse
    To try out some of the experiments.
  • 14. GEM mouse
    Obtain mouse x and y positions.
    Normalize mouse x and y positions.
    Relation with the co-ordinates system.
  • 15. Co-ordinates
  • 16. Distance
  • 17. Collision

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