Mu Qiao

Supervisor: Dr. Giuseppe Conti Prof. Raffaele de Amicis

Multiple Screens

Introduction Related Work Method and Implementation

• Rotating Cube Example• World Wind Java SDK

IntroductionIntroduction Related Work Method and Implementation

• Rotating Cube Example• World Wind Java SDK

IntroductionIntroduction

Why multiple screen?Why multiple screen?

1.1. panoramapanorama display

2. Exciting

3. Cheap

4. Virtual reality

Introduction Related WorkRelated Work Method and Implementation

• Rotating Cube Example• World Wind Java SDK

Related WorkRelated Work Studierstube VR Juggler Java3D

Studierstube Virtual Reality Group in Technical

University Vienna leaded by Prof. Dr. Dieter Schmalstieg

Augmented Reality Utilize C++ on Open Inventor Multiple Screen Feature

VR Juggler Iowa Center for Emerging

Manufacturing Technology (ICEMT) C++ based Cross platform support OpenGL and OSG based APIs Hardware support of CAVE

Java 3D Structure of Java 3D View Model

Multiple Screens

Introduction Related Work Method and Implementation

• Rotating Cube Example• World Wind Java SDK

Implementation Tools– Development tools:

• Java programming language• Eclipse IDE(version 3.3.2)

– Libraries: • Jogl (version JSR-231)• GlueGen

– Platform:• World Wind Java SDK (version 0.4.1)

Application Structure

Introduction Related Work Method and Implementation

• Rotating Cube Example• World Wind Java SDK

Rotating Cube Example “Master-Slave” Rotating Cube

Extension Network Communication through Java

Socket Multiple Screens Effect Realization by

Adjusting Viewport

Rotating Cube Example “Master-Slave” Rotating Cube

Extension Network Communication through Java

Socket Multiple Screens Effect Realization by

Adjusting Viewport

Rotating Cube Example Network Communication through Java

Socket

Rotating Cube Example Multiple Screens Effect Realization by

Adjusting Viewport

Stable Cube

Effect

Introduction Related Work Method and Implementation

• Rotating Cube Example• World Wind Java SDK

World Wind Java SDK Steps are similar to rotating cube

“Master-Slave” Rotating Cube Extension Network Communication through Java

Socket Multiple Screens Effect Realization by

Adjusting Viewport

Needs more time analyze structure of the original source code

Network Communication

Network Communication

view = wwd.getView();this.view.applyStateIterator(…povEvent.getPara());

Network Communication

Multiple Screens

Stable WWJ

Save & Load Position Parameters

Save: saves position parameters to .txt Load: loads position parameters from .txt

Performance Evaluation Connect build between master and

multiple slaves Master controls multiple slaves Multiple slaves can form one object

Future Work Class extension modification More screens involved Layer involved

Valuable practical programming & research experiences gained in

GraphiTech!

Thank you!

Grazie!