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

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

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

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

The Environment  The VE Framework

The Environment (2)  The UI Widget Set

The UI Description: VRIXML tex_Properties.png Object Properties Diffuse Color R <Tickstyle orientation="horizontal" position="both" frequency="16"/> CANCEL <Metrics Horizontal="middle" Vertical="middle"/>

Features  Inter-dialog Navigation  Example: Delete selected Object Add Object <Metrics Horizontal="middle" Vertical="middle"/>

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

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

Questions