Proceedings. Computer Graphics International (Cat. No.98EX149)最新文献_第7页

3D-visualization of garments 服装的3d可视化

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694291

K. Rödiger

引用次数: 2

Real time muscle deformations using mass-spring systems 使用质量-弹簧系统的实时肌肉变形

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694263

L. Nedel, D. Thalmann

引用次数: 251

Interactive visualization of particle systems 粒子系统的交互式可视化

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694254

A. Backes, A. Dahr, M. Rumpf

{"title":"Interactive visualization of particle systems","authors":"A. Backes, A. Dahr, M. Rumpf","doi":"10.1109/CGI.1998.694254","DOIUrl":"https://doi.org/10.1109/CGI.1998.694254","url":null,"abstract":"The interest in particle methods and gridless discretizations has been increasing enormously in recent times: a development which is especially boosted by the rapid progress of hardware capabilities and the design of new highly sophisticated algorithms, thanks to which nowadays systems of several millions degrees of freedom can be simulated. Consequently there is a high demand for interactive visualization tools to explore the huge amount of data. Several techniques for visualizing particle systems are presented. These methods are based on efficient algorithms and models and make frequent use of the texture mapping capabilities of modern graphics hardware to improve the efficiency of scene display and, for example, to display properly illuminated particle traces. The main stress of the discussion is put on the presentation of a multiresolutional concept that enables the visualization of systems which even consist of several millions of particles. Its basic idea is to display a density function instead of resolving regions of high particle density particlewise. Therefore we construct two adaptive hierarchical trees, one of which is to store the particle information, whereas the other one contains complete density information. For the sake of economical memory management, both trees are efficiently stored in hash tables.","PeriodicalId":434370,"journal":{"name":"Proceedings. Computer Graphics International (Cat. No.98EX149)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121195939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

A data dependent triangulation for vector fields 矢量场的数据依赖三角剖分

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694255

G. Scheuermann, H. Hagen

引用次数: 9

Graph-based surface reconstruction using structures in scattered point sets 基于散点集结构的基于图的曲面重建

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694281

R. Mencl, H. Müller

引用次数: 64

Virtual humans in CyberDance 《CyberDance》中的虚拟人

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694262

S. Carion, Gaël Sannier, N. Magnenat-Thalmann

引用次数: 5

Illumination dependent refinement of multiresolution meshes 基于光照的多分辨率网格细化

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694326

A. Schilling, R. Klein, W. Straßer

引用次数: 33

WebVizard: intelligent system for geodata visualization and CBT in the WWW WebVizard:用于WWW中地理数据可视化和CBT的智能系统

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694259

S. Göbel

{"title":"WebVizard: intelligent system for geodata visualization and CBT in the WWW","authors":"S. Göbel","doi":"10.1109/CGI.1998.694259","DOIUrl":"https://doi.org/10.1109/CGI.1998.694259","url":null,"abstract":"The aim of this paper is primarily to cover the possibilities and problems of GIS in the WWW. A second aim is to show trends in the areas of CBT and Teleteaching in general and one possible approach of using CBT in a GIS, namely WEBVIZARD. In the WWW there are many Geographic Information Systems (GIS) which use databases. But the possibilities of data access and data visualization are restricted because of the inflexibility of their default data queries and visualization techniques. WEB VIZARD is an intelligent and flexible client/server system providing access and visualization of geographic data in the World-Wide-Web. It employs a knowledge-based system to create effective visualizations that fit the data characteristics and user requirements. Furthermore WEB VIZARD takes into account peculiarities of the WWW, and special techniques like metadata concepts or generalization algorithms are used for minimizing the data volume of communication between WWW-browser/client and WWW-server. In order to improve user-friendliness, WEB VIZARD offers a comprehensive support system and also GUI's considering Software ergonomic aspects during development. Java across the Internet represents a perfect platform for CBT and Teleteaching. Due to this fact I examined the usage of several methodical/didactical concepts in the environment of the WWW. Based on the results of my examination, I developed a learning system prototype-using the concepts of the Leittextmethode-and integrated it into WebVizard.","PeriodicalId":434370,"journal":{"name":"Proceedings. Computer Graphics International (Cat. No.98EX149)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114345957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Virtual reality-new methods for improving and accelerating the development process in vehicle styling and design 虚拟现实——改进和加速汽车造型和设计开发过程的新方法

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694338

F. Purschke, M. Schulze, P. Zimmermann

{"title":"Virtual reality-new methods for improving and accelerating the development process in vehicle styling and design","authors":"F. Purschke, M. Schulze, P. Zimmermann","doi":"10.1109/CGI.1998.694338","DOIUrl":"https://doi.org/10.1109/CGI.1998.694338","url":null,"abstract":"The article describes the use of virtual reality techniques during the car development process at Volkswagen. A brief definition of virtual reality is given and it is pointed out that virtual reality has to be understood as a method and not only as a tool. There is a short introduction of the research topics that are investigated by the VR-Lab. Some of them are presented in more detail. It is shown which steps have to be taken to get a virtual reality design review model. The problems are pointed out and possible solutions are described. An interface to the 3D human model, RAMSIS, has been implemented. RAMSIS is the result of a joint venture of German car companies and two seat manufacturers. The goal of implementing RAMSIS was to generate a realistic simulation of human beings in car interiors and work places. The integration of the CAD geometry kernel, ACIS, enhances the analytical possibilities of the virtual reality system by adding the same parametric surfaces used by the original CAD system and providing a wide variety of CAD functionality (e.g. cutting planes, distance measuring, Boolean operations). A 3D interaction model for modifying colors and surface structures of car interiors provides an easy and intuitive access to the geometric models concerned. Arbitrary components can be selected freely within the virtual environment and they can be manipulated \"by a wave\" of the hand.","PeriodicalId":434370,"journal":{"name":"Proceedings. Computer Graphics International (Cat. No.98EX149)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131282052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 41

Robust tessellation of trimmed rational B-spline surface patches 裁剪有理b样条曲面补丁的鲁棒镶嵌

Proceedings. Computer Graphics International (Cat. No.98EX149) Pub Date : 1998-06-22 DOI: 10.1109/CGI.1998.694308

W. Cho, T. Maekawa, N. Patrikalakis, J. Peraire

{"title":"Robust tessellation of trimmed rational B-spline surface patches","authors":"W. Cho, T. Maekawa, N. Patrikalakis, J. Peraire","doi":"10.1109/CGI.1998.694308","DOIUrl":"https://doi.org/10.1109/CGI.1998.694308","url":null,"abstract":"We present an unstructured triangular mesh generation algorithm that approximates a set of mutually non-intersecting simple trimmed rational B-spline surface patches within a user specified geometric tolerance. The proposed method uses numerically robust interval geometric representations/computations and also addresses the problem of topological consistency (homeomorphism) between the exact geometry and its approximation. Those are among the most important outstanding issues in geometry approximation problems. Our surface tessellation algorithm is based on the unstructured Delaunay mesh approach which leads to an efficient adaptive triangulation. A robust decision criterion is utilized to prevent possible failures in the conventional Delaunay triangulation. To satisfy the prescribed geometric tolerance, an adaptive node insertion algorithm is employed. Unstructured triangular meshes for free-form surfaces frequently involve triangles with high aspect ratio and accordingly, result in ill-conditioned meshing. Our proposed algorithm constructs 2D triangulation domains which sufficiently preserve the shape of triangles when mapped into 2D space and furthermore, the algorithm provides an efficient method that explicitly controls the aspect ratio of the triangular elements.","PeriodicalId":434370,"journal":{"name":"Proceedings. Computer Graphics International (Cat. No.98EX149)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123023787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5