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SIGRAD 2008. the Annual SIGRAD Conference SIGRAD 2008 The Annual SIGRAD Conference Special Theme: Interaction November 27–28, 2008 Stockholm, Sweden Conference Proceedings Organized by SIGRAD, Swedish Chapter of Eurographics and Royal Institute of Technology Edited by Kai-Mikael Jää-Aro & Lars Kjelldahl Published for SIGRAD, Swedish Chapter of Eurographics by Linköping University Electronic Press Linköping, Sweden, 2008 The publishers will keep this document online on the Internet - or its possible replacement from the date of publication barring exceptional circumstances. The online availability of the document implies a permanent permission for anyone to read, to download, to print out single copies for your own use and to use it unchanged for any non-commercial research and educational purpose. Subsequent transfers of copyright cannot revoke this permission. All other uses of the document are conditional on the consent of the copyright owner. The publisher has taken technical and administrative measures to assure authenticity, security and accessibility. According to intellectual property law the author has the right to be mentioned when his/her work is accessed as described above and to be protected against infringement. For additional information about the Linköping University Electronic Press and its procedures for publication and for assurance of document integrity, please refer to its www home page: http://www.ep.liu.se/. Linköping Electronic Conference Proceedings, No. 34 Linköping University Electronic Press Linköping, Sweden, 2008 ISBN 978-91-7393-733-7 ISSN 1650-3686 (print) http://www.ep.liu.se/ecp/034/ ISSN 1650-3740 (online) Print: LiU-Tryck, Linköpings universitet, 2008 Cover illustrations selected from the papers. © 2008, The Authors ii Table of Contents Preface................................................................................................................................................................................iv Keynotes............................................................................................................................................................................. 1 Human-Computer Interaction for Visualisation, Yngve Sundblad......................................................................... 3 Gapminder, Unveiling the beauty of statistics for a fact based world view, Daniel Lapidus.................................. 5 Experiential qualities of interactive visualizations, Jonas Löwgren........................................................................ 7 State of the art report, Haptics............................................................................................................................................ 9 Haptic Force Feedback in Mediated Interaction, Eva-Lotta Sallnäs....................................................................... 11 Volume Haptics Technologies and Applications, Karljohan Lundin Palmerius..................................................... 15 Learning Molecular Interaction Concepts through Haptic Protein Visualization, Petter Bivall Persson................. 17 Physically Realistic Soft-Tissue Deformation in Real-Time, Umut Koçak............................................................ 21 Simulator for Operative Extraction of Wisdom Teeth, Jonas Forsslund................................................................. 23 Papers................................................................................................................................................................................. 25 Fast and Tight Fitting Bounding Spheres, Thomas Larsson................................................................................... 27 Real Time Large Scale Fluids for Games, Daniel Kallin........................................................................................ 31 Core-based morphing algorithm for triangle meshes, Martina Málková, Ivana Kolingerová, Jindřich Parus......... 39 Adaptive resolution in physics based virtual environments, M. Servin, C. Lacoursière, F. Nordfelth.................... 47 Enhanced Interactive Spiral Display, Christian Tominski, Heidrun Schumann...................................................... 53 Computation of Topologic Events in Kinetic Delaunay Triangulation …, Tomáš Vomáčka, Ivana Kolingerová.. 57 Robust Distance-Based Watermarking for Digital Video, A. S. Abdul-Ahad, et al................................................ 65 Interactive visualization of new electromagnetic quantities, Siavoush M. Mohammadi et al................................. 71 Posters................................................................................................................................................................................ 75 Real-time Global Illumination of Static Scenes with Dynamic Lights, Magnus Burénius...................................... 77 Design and Implementation of a Stereoscopic Display in a Lecture-room, Martin Ericsson, et al........................ 79 Collaborative Live Multimedia Surface Interaction, Rikard Lindell....................................................................... 81 3D Urban Landscape Visualization, Zoja Veide, Veronika Strozheva, Modris Dobelis......................................... 83 Industry session.................................................................................................................................................................. 85 Algoryx—Interactive Physics, Anders Backman................................................................................................... 87 Awareness of 3D—rapid market growth, Trond Solvold....................................................................................... 89 LISTEN Heavy Demonstrator…, Peter Becker, Peter Lundén............................................................................... 91 iii Preface We are happy to present a very interesting program for the annual SIGRAD conference, continuing the trend of international participation. The theme of the conference this year is “Interaction” and thus we are very pleased to cooperate with STIMDI, the Swedish human-computer interaction society. The Royal Institute of Technology (KTH), hosts this year’s conference 27–28 November 2008. One aim has been to raise the awareness of Eurographics in Sweden in preparation for Eurographics 2010, which will be hosted by the Norrköping Visualization and Interaction Studio. We thank the main sponsor of this event, VIC (Visualization, Interaction, and Communication), the network for visualization at KTH. We thank the international program committee for their support and their valuable review work. Finally, thanks to all the authors and the conference participants without whom this conference would not have been possible. We wish all participants a stimulating conference, and hope they take the chance to get involved in the Swedish and European graphics community. Welcome to the conference of the Swedish Chapter of Eurographics, SIGRAD 2008! Kai-Mikael Jää-Aro Lars Kjelldahl Editors Conference organizing committee Nils-Erik Gustafsson, IT-Arkitekterna Anders Hast, University of Gävle Kai-Mikael Jää-Aro, Telestream AB Lars Kjelldahl, Royal Institute of Technology Thomas Larsson, Mälardalen University International program committee Ewert Bengtsson, Uppsala University Matt Cooper, Linköping University Modris Dobelis, Riga Technical University Nils-Erik Gustafsson, IT-Arkitekterna Anders Hast, University of Gävle Kai-Mikael Jää-Aro, Telestream AB Lars Kjelldahl, Royal Institute of Technology Ivana Kolingerová, University of West Bohemia in Pilsen Ann Lantz, Royal Institute of Technology Thomas Larsson, Mälardalen University Lennart Ohlsson, Lund University Yngve Sundblad, Royal Institute of Technology Gustav Taxén, Avalanche Anders Ynnerman, Linköping University iv Keynotes Human-Computer Interaction for Visualisation Yngve Sundblad Royal Institute of Technology Abstract In many cases visualised phenomena can be better understood using interactive devices and means for navigation in space and time, highlighting, different viewpoints and representations, recalculation and revisualisation of interesting parts, etc. In the presentation some examples will be given on how HCI knowledge can be used for such situations in visualisations in the broad sense, perceptualisations with several senses (visual, audial and haptic). Initiatives for forming visualisation networks in Stockholm will also be mentioned. 3 Gapminder Unveiling the beauty of statistics for a fact based world view Flash animations bringing enormous amounts of data to life Daniel Lapidus Gapminder Abstract Google, the Gapminder Foundation maintain the same aim Gapminder is a non-profit venture promoting sustainable and uses Trendalyzer and its resources to produce videos global development and achievement of the United Nations and web services showing major global development trends Millennium Development Goals by increased use and with animated statistics. understanding of statistics and other information about social, economic and environmental development at local, The time series are made freely available in the web service national and global levels. called Gapminder World (www.gapminder.org/world/). Gapminder World enables the end users to further explore Gapminder developed the Trendalyzer software, which the underlying statistics in Trendalyzer graphics. converts boring numbers into enjoyable, animated and interactive graphics–thus unveiling the beauty of statistical This seminar will focus on: time series.
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