1. VRIXML: A User Interface Description for Virtual Environments Erwin Cuppens, Chris Raymaekers, Karin Coninx Expertise Centre for Digital Media (EDM) Limburgs Universitair Centrum (LUC)

2. Overview  Introduction  Environment  The UI Description: VRIXML  The Features  Future Work !!!  Questions??

3. Introduction  Virtual Environment Challenges  Design  Feeling of presence  Display Techniques  Interaction Techniques

4. Introduction (2)  Designing the User Interface  Code-based  XML-based description language(s)  Existing languages:  UIML: large, very abstract  SEESCOA XML: small, specific  Our approach:  VRIXML

5. The Environment  The VE Framework

6. The Environment (2)  The UI Widget Set

7. The UI Description: VRIXML tex_Properties.png Object Properties Diffuse Color 1.0 0.0 R 0.0 1.85 <Tickstyle orientation="horizontal" position="both" frequency="16"/> 1.0 1.5... 14 0.0 0.0... CANCEL 0.0 0.0 0 10.0 15.0 0.0 0.0 -20.0 <Metrics Horizontal="middle" Vertical="middle"/>

8. Features  Inter-dialog Navigation  Example:... 5. Delete selected Object 17 6. Add Object 52000... 0 0 -20 <Metrics Horizontal="middle" Vertical="middle"/>

9. Features (2)  Automatic event generation  Example: … … … … 14 …

10. Future Work Ongoing & future work:  Extensive graphical tool support  Automatic layout management (constraint based)  Extending/Adapt the VRIXML notation

11. Questions