VRIXML: A User Interface Description for Virtual Environments

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VRIXML A User Interface Description for Virtual
Environments

• Erwin Cuppens, Chris Raymaekers, Karin Coninx
• Expertise Centre for Digital Media (EDM)
• Limburgs Universitair Centrum (LUC)

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Overview

• Introduction
• Environment
• The UI Description VRIXML
• The Features
• Future Work !!!
• Questions??

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Introduction

• Virtual Environment Challenges
• Design
• Feeling of presence
• Display Techniques
• Interaction Techniques

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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

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The Environment

• The VE Framework

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The Environment (2)

• The UI Widget Set

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The UI Description VRIXML
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Features

• Inter-dialog Navigation

Example ltUIMenugt ... ltMenuItem ID"5"gt
ltTextgt5. Delete selected Objectlt/Textgt
ltEventgt17lt/Eventgt lt/MenuItemgt ltMenuItem
ID"6"gt ltTextgt6. Add Objectlt/Textgt
ltChildUIgt52000lt/ChildUIgt lt/MenuItemgt ...
ltPositiongt ltXgt0lt/XgtltYgt0lt/YgtltZgt-20lt/Zgt
lt/Positiongt ltMetrics Horizontal"middle"
Vertical"middle"/gt lt/UIMenugt
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Features (2)

• Automatic event generation

Example ltUIDialoggt ltDialogItemgt
ltUIGroupgt ltGroupItemgt ltUISlider
paramID"10"gt lt/UISlidergt
ltPositiongtlt/Positiongt lt/GroupItemgt
ltEventgt14lt/Eventgt lt/UIGroupgt
lt/DialogItemgt ltDialogItemgtlt/DialogItemgt
lt/UIDialoggt
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Future Work

• Ongoing future work
• Extensive graphical tool support
• Automatic layout management (constraint based)
• Extending/Adapt the VRIXML notation

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Questions