Applying constraints to enforce users' intentions in free-hand 2-D sketches
Intelligent Systems Engineering
SKETCH: an interface for sketching 3D scenes
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
The VRML 2.0 handbook: building moving worlds on the web
The VRML 2.0 handbook: building moving worlds on the web
Computer graphics and architecture: state of the art and outlook for the future
ACM SIGGRAPH Computer Graphics
Networked applications: a guide to new computing infrastructure
Networked applications: a guide to new computing infrastructure
An interactive environment for virtual manufacturing: the virtual work bench
Computers in Industry - Special issue on multimedia in manufacturing
Principles of Object-Oriented Software Development with Cdrom
Principles of Object-Oriented Software Development with Cdrom
CAD/Cam Theory and Practice
Introduction to Simulation Using SIMAN
Introduction to Simulation Using SIMAN
A Functional Framework for Web-Based Information Visualization Systems
IEEE Transactions on Visualization and Computer Graphics
Knowledge web-based system architecture for collaborative product development
Computers in Industry
Change propagation algorithm in a unified feature modeling scheme
Computers in Industry
Server-centric Web frameworks: An overview
ACM Computing Surveys (CSUR)
A three-phase integrated model for product configuration change problems
Expert Systems with Applications: An International Journal
Knowledge web-based system architecture for collaborative product development
Computers in Industry
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A web-based conceptual design prototype system is presented. The system consists of four parts which interpret on-line sketches as 2D and 3D geometry, extract 3D hierarchical configurations, allow editing of component behaviours, and produce VRML-based behavioural simulations for design verification and web-based application. In the first part, on-line freehand sketched input is interpreted as 2D and 3D geometry, which geometrically represents conceptual design. The system then infers 3D configuration by analysing 3D modelling history. The configuration is described by a parent-child hierarchical relationship and relative positions between two geometric components. The positioning information is computed with respect to the VRML97 specification. In order to verify the conceptual design of a product, the behaviours can be specified interactively on different components. Finally, the system creates VRML97 formatted files for behavioural simulation and collaborative design application over the Internet. The paper gives examples of web-based applications. This work forms a part of a research project into the design and establishing of modular machines for automation manufacture. A consortium of leading automotive companies is collaborating on the research project.