Interacting with Virtual

World

Interface Metaphors

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Use metaphors have become ubiquitous in the society

Representation metaphors

Manipulation

Manipulation

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1. Direct user control

2. Physical control

3. Virtual control

4. Agent Control

ManipulationClick icon to add picture

1. Direct user control

2. Physical control

3. Virtual control

4. Agent Control

ManipulationClick icon to add picture

1. Direct user control

2. Physical control

3. Virtual control

4. Agent Control

ManipulationClick icon to add picture

1. Direct user control

2. Physical control

3. Virtual control

4. Agent Control

Properties of Manipulation1. Feedback2. Ratcheting3. Constraints4. Distance5. Pointer beam scope6. Hysteresis7. Frame of reference8. Bimanual interface9. Control location10.Control visibility11.Movement formula (control order and gain)

Feedback - Haptic

Constraints – 6DOF

Distance – too far

Pointer beam scope – reach far distance

Control visibility

Movement formula (control order and gain)

Ratcheting – Continuous movement (mouse)

Bimanual Interface – More than one hand