1. Map Information Visualization
CS5984 Information Visualization
Ying Chen, Xueqi Cheng
Zhiping Wang, Rui Yang

2. Challenge
Large scale information
-Extensive map information

3. Our Approach 3D Display Information Layer Overview & Detail
Dynamic Query
Visiting History

4. 3D Display Natural than 2D Extra space Extensive Information
Perspective Transform
Multi-Display

5. Information Layer
Multi-Layer
Zoom in/Zoom out
View-filter

6. Overview & Detail
Distribution
Comparison
Analysis

7. Dynamic Query
Real-time Retrieval
Snap-together
Efficiency

8. Visiting History
Easily retrieve old data
Comparison
Focus on interest

9. Pros & Cons Pros Cons -Natural 3D Map -Good Scaling -Single View
-Overview + Detail
Cons
-Hardware Requirement
-3D Limitation:
-Accuracy of Choosing Objects
-Selection of Multiple Objects

10. Future Work Extend to large size map
Optimize the algorithm for running on common PC
Enable multiple objects selection in 3D

11. Live Demo

12. Dr. North for instruction & Alex Kalita for providing laptop
Special Thanks To
Dr. North for instruction
&
Alex Kalita for providing laptop

13. Questions??