Interpreting Physical Sketches as Architectural Models

We present an algorithm for the automatic interpretation of a rough architectural sketch as a consistent 3D digital model. We compare our results to the designer’s intended geometry. We further validate the algorithm by studying the variations in possible

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Cristiano Ceccato · Lars Hesselgren · Mark Pauly Helmut Pottmann · Johannes Wallner Editors

Advances in Architectural Geometry 2010

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Editors Cristiano Ceccato · Zaha Hadid Architects London, UK Lars Hesselgren · PLP Architecture London, UK Mark Pauly · EPFL Lausanne, CH Helmut Pottmann · KAUST and TU Vienna, AUT Johannes Wallner · TU Graz, AUT

This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machines or similar means, and storage in data banks. Product liability: The publisher can give no guarantee for the information contained in this book. The use of registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and are therefore free for general use. © 2010 Springer-Verlag/Vienna Printed in Austria SpringerWienNewYork is a part off Springer Science+Business Media springer.at

Cover photo: Soho Galaxy project, Zaha Hadid Architects Cover Design: WMXDesign GmbH, Heidelberg, Germany Printing and binding: Holzhausen Druck GmbH, Vienna, Austria Printed on acid-free and chlorine-free bleached paper SPIN: 80013827 Library of Congress Control Number: 2010934109 With numerous colored figures ISBN 978-3-7091-0308-1 SpringerWienNewYork

Foreword

Geometry lies at the core of the architectural design process. It is omnipresent, from the initial form-finding to the final construction. Modern geometric computing provides a variety of tools for the efficient design, analysis, and manufacturing of complex shapes. On the one hand this opens up new horizons for architecture. On the other hand, the architectural context also poses new problems to geometry. Around these problems the research area of architectural geometry is emerging, situated at the border of applied geometry and architecture. The conference on Advances in Architectural Geometry which takes place from September 18 to September 21, 2010 in Vienna brings together researchers from the fields of architecture and geometry to discuss recent advances in research and practice, and to identify and address the most challenging problems. We aim at connecting researchers from architectural and engineering practices, academia, and industry. This book reflects the substantial progress in the field since the last event two years ago. For AAG 2010 we received 59 high-quality submissions out of which 15 have been selected for this volume based on the reviews of an international program committee. We would like to express our sincere gratitude to all reviewers! The interdisciplinary nature of architectural geometry is reflected in the diversity of backgrounds of the contributing authors. Renowned architects, engineers, mathematicians, and computer scientists present novel research ideas and cutting-edge solutions at the interface of geometry processing and architectural desi