1. CAADRIA2004
Navigating 3D information space
with 6 degree of freedom devices
Kai-Tzu Lu
Graduate Institute of Architecture, National Chiao Tung University, Hsinchu, Taiwan, R.O.C.

2. CAADRIA2004
Motivation
 The purpose of this research is to identify how to intuitively operate 6 DOF Input
Devices for interactive data storage in 3D virtual environments.
 It is under the condition that the role of the computer is to simulate the way people
sense the real space, so
 users may instinctively utilize this simple device to explore the possibility of data
recurrence and reorganization, and
 designers may receive timely inspiration in the process of architectural design.

3. CAADRIA2004
Manipulate Concept
Visual informationInternalcontrol
Control viewpoint

4. CAADRIA2004
Related work of 6DOF Input Devices
 Force feedback
 Hand-sensor
 Computer Vision

5. CAADRIA2004
Research Question
 These complex systems are for multi-functional operation. They are too intricate for
simple navigation of 3D VES information system.
Function 1
Function 2
Function 3
Function 4

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Objective
 This research studies the way people navigate 3D VES information system and the
actual spatial experience.
 I then develop a 6 DOF device for implementing basic navigational function with
easy operation and compatibility with different interfaces.

7. CAADRIA2004
The Properties of 6 DOF Devices
 To provide immediately feedback
 To manipulate 3D virtual information Directly
X
Y
Z
θ
ø
φ

8. CAADRIA2004
Methodology
 Keyboard and mouse control
 MUSE as an example
 Gesture analysis for interacting with 3D information space
 Implementing a 6 DOF device
 Demonstration of its usability

9. CAADRIA2004
Keyboard and Mouse Controls
 Navigation in MUSE :
 Toggle mouse-look mode: SHIFT-key’
rotategravitatewalk
decisionzigzig
pickjumpWalk
RollDownBackward
Shift+
Direction
[F][S]
O.K.RightBasicLeft
Mouse
Click[D][A]
selectionUpForward
Mouse
Click[R][W]

10. CAADRIA2004
Gesture analysis for interacting with 3D information
space
 The actual usage of a 6 DOF device based on the gesture analysis
RotateGravitateWalk
decisionzigzig
pickjumpWalk
RollDownBackward
Shift+
Direction
[F][S]
O.K.RightBasicLeft
Mouse
Click[D][A]
selectionUpForward
Mouse
Click[R][W]
Standgravitatewalk
decisionzigzig
pickjumpWalk
stopDownBackward
O.K.RightBasicLeft
selectionUpForward

11. CAADRIA2004
Implementing a 6 DOF device
rotategravitatewalk
decisionzigzig
pickjumpWalk
RollDownBackward
O.K.RightBasicLeft
selectionUpForward

12. CAADRIA2004
Implementing a 6 DOF device
 Building up a 3D virtual space using MUSE environment
 A device implemented based on the gesture analysis and reviews
1.
2.
3.
4.
5.
6.
7. 8.
1.
2.
3.
4.
5.
6.
7.
8.

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Navigation Demo

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Conclusion
 During the implementation testing of 6DOF input device, the hardware itself tends
to fix the posture and wear people out so they are not able to browse for extended
period of time.
 Spiral-type browsing offers a new visual experience that helps us rethink whether in
the 3D browsing environment there can be operational modes other than simulating
the way human beings walk to give users different experiences in the visualized
information-browsing space.

15. CAADRIA2004
Future Works
 A 6DOF device will provide some empirical and real data for analysis of human
navigation behaviours.
 This can be explored along dynamic interactive spatial experience.
 With the device, extended controls can be defined.

16. CAADRIA2004
The END