Generalising 3D Buildings from LoD2 to LoD1

Conference paper (2017)

Authors

A. Labetski Urban Data Science - Architecture and the Built Environment
H. Ledoux Urban Data Science - Architecture and the Built Environment
J.E. Stoter Urban Data Science - Architecture and the Built Environment
Research Group
Urban Data Science (Architecture and the Built Environment) (TU Delft)
Copyright: © 2017 A. Labetski, H. Ledoux, J.E. Stoter
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Published Date

2017

Language

English

Reuse Rights

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Faculty

Architecture and the Built Environment

Department

Urbanism

Research Group

Urban Data Science

Abstract

The increasing popularity of 3D city models in navigation, urban planning, etc.,
necessitates application-specific and geometrically accurate and valid models. The concept of Levels of Detail (LoDs) indicate a model’s scale of adherence to its real-world counterpart. Highly detailed datasets often contain errors or require an exorbitant level of computing power. Given the high availability of LoD2 datasets, our research focuses on three considerations for generalising to LoD1: the vertical reference, extrusion vs. downtrusion and floor plan simplification. We present in this paper an initial methodology that produces geometrically accurate LoD1 models with a reduction of over 70% of the original file size.