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Lars Harrie

Lars Harrie

Professor

Lars Harrie

A multiple representation data structure for dynamic visualisation of generalised 3D city models

Author

  • Bo Mao
  • Yifang Ban
  • Lars Harrie

Summary, in English

In this paper, a novel multiple representation data structure for dynamic visualisation of 3D city models, called CityTree, is proposed. To create a CityTree, the ground plans of the buildings are generated and simplified. Then, the buildings are divided into clusters by the road network and one CityTree is created for each cluster. The leaf nodes of the CityTree represent the original 3D objects of each building, and the intermediate nodes represent groups of close buildings. By utilising CityTree, it is possible to have dynamic zoom functionality in real time. The CityTree methodology is implemented in a framework where the original city model is stored in CityGML and the CityTree is stored as X3D scenes. A case study confirms the applicability of the CityTree for dynamic visualisation of 3D city models. (C) 2010 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Published by Elsevier B.V. All rights reserved.

Department/s

  • Dept of Physical Geography and Ecosystem Science
  • eSSENCE: The e-Science Collaboration

Publishing year

2011

Language

English

Pages

198-208

Publication/Series

ISPRS Journal of Photogrammetry and Remote Sensing

Volume

66

Issue

2

Document type

Journal article

Publisher

Elsevier

Topic

  • Physical Geography

Keywords

  • 3D city models
  • Generalisation
  • Aggregation
  • Dynamic visualisation
  • Multiple representation data structure

Status

Published

ISBN/ISSN/Other

  • ISSN: 0924-2716