FIG Peer Review Journal


Conceptual Framework Towards Unified 3D Topological Modelling and Visualization Based on CityGML (9250)

Alias Abdul Rahman, Hairi Karim (Malaysia), Ali Jamali (Iran), Gurcan Buyuksalih and Serdar Bayburt (Türkiye)
Prof Dr. Abdul Rahman Alias
Universiti Teknologi Malaysia
Skudai, Malaysia
Johor Bahru
Corresponding author Prof Dr. Abdul Rahman Alias (email: alias.fksg[at], tel.: 60137490452)

[ abstract ] [ paper ] [ handouts ]

Published on the web 2018-03-10
Received 2017-10-01 / Accepted 2018-02-01
This paper is one of selection of papers published for the FIG Congress 2018 in Istanbul, Turkey and has undergone the FIG Peer Review Process.

FIG Congress 2018
ISBN 978-87-92853-78-3 ISSN 2308-3441


Designing a unified data model requires reliable data interoperability (module) for sharing 2D or 3D data across multiple scale models, applications and users (e.g. CityGML). Representing 3D objects (e.g. buildings) with multiple representations produce data redundancy and visualization limitations (e.g. only one LoD per viewer). This paper discusses a conceptual view of a new simplified topological structure where the connection of multiple LoDs (geometry, attribute and semantic) could be possible to embedd into a single viewer. We truly believed that an integrated or unified model should be made available for sharing information and make use of each LoDs or future spatial applications. Inevitably, this piece of research work could trigger better 3D geoinformation software and new data schema/standard development (e.g. new version of CityGML) for sharing purposes.
Keywords: GIM; 2D and 3D spatial data, topological data structure, CityGML and multiple LoDs.