Modelling and graphics in science and technology with 12 tables ; [a Workshop on Graphics and Modelling in Science & Technology was held in Coimbra, Portugal in June 1994

Graphics and Modelling are key technologies to support visualisation and product development tasks. Based on the recent developments in the areas of (scientific) visualisation, interaction techniques, distributed systems, and product design, in­ dustrial and applied research have improved the possibilities for further approaches and issues and for exchanging experiences. A workshop on Graphics and Model­ ling in Science & Technology was held in Coimbra, Portugal in June 1994, and the programme committee selected 19 papers for presentation. The workshop had a good international participation. Due to the extensive scientific contacts between Portuguese and German researchers, the workshop included the third Luso-German Computer Graphics Meeting. This book reflects the results of the workshop. The papers were updated after the workshop presentations to reflect the discussions during the meeting. Correspond­ ing to the different topics addresses in the workshop, the book is divided into the following six sections. CAD Models and Architectures Short overviews of the Reference Architecture for CAD and the Integration Con­ cept for CAD applications are given in this section. The integration ability of the international standard STEP is analysed, as well as STEP's integration approaches for product data sharing and product data exchange. Front Matter....Pages I-XV Integration Aspects of STEP and their Expression in the CAD Reference Model....Pages 1-20 Modelling Shape Through a Cellular Representation Scheme....Pages 21-37 Consistency Management Aspects in Sinfonia ....Pages 38-61 A Geometric Reasoning Server with Applications to Geometric Constraint Satisfaction and Configurable Feature Extraction....Pages 62-76 Features and modelling Re-Design with DEKLARE....Pages 77-90 Data Fitting with B-splines Curves....Pages 91-104 SIDEPO: a System for Interactive Design of Exact Parametrized Objects....Pages 105-123 The EBP System: Example Based Programming System for Parametric Design....Pages 124-140 An Introduction to Object Design Technology with Computer Graphics to Support Concurrent Engineering....Pages 141-163 Construction of the 3D Model of an Unknown Environment using Range Data....Pages 164-172 Communication Environment for Cooperative Product Development between Manufacturers and Suppliers....Pages 173-185 KAMEDIN - Teleconferencing and Automatic Image Analysis for Medical Applications....Pages 186-196 Towards an Intuitive 3D Interaction....Pages 197-206 Virtual Environments meet Architectural Design Requirements....Pages 207-218 Efficient Spatial Data Acquisition in Temporal Geographic Information Systems....Pages 219-230 Topology Preserving Vectorization....Pages 231-243 Ray-Tracing for Stereoscopic Images....Pages 244-257 A Dynamical Quadtree Hierarchical Radiosity Algorithm in Thermal Radiation Modelling....Pages 258-265 The Sun and its Impact on Thermal Analysis in Buildings: Physical Simulation and Visualization....Pages 266-278 Back Matter....Pages 279-280 This book contains a selection of papers about a broad range of topics relating to CAD modelling and graphics. These papers present an excellent overview of the research and application work done at different R&D institutions in Europe and USA. The papers are grouped into sections. First, issues in feature-based product development (such as representation of form features, consistency management, and reasoning) are addressed from different perspectives. Next, CAD models and architectures are introduced from an application perspective. Then some design techniques are presented. The following sections deal with communication in design and analysis, input and interaction techniques, and visualization. This book contains a selection of papers about a broad range of topics relating to CAD modelling and graphics. These papers present an excellent overview of the research and application work done at different R & D institutions in Europe and USA. The papers are grouped into sections. First, issues in feature-based product development (such as representation of form features, consistency management, and reasoning) are addressed from different perspectives. Next, CAD models and architectures are introduced from an application perspective. Then some design techniques are presented. The following sections deal with communication in design and analysis, input and interaction techniques, and visualization.