Smart City Gnosys

Smart city article details

Title	Combining Open Source And Commercial Tools In Digital Twin For Cities Generation
ID_Doc	14847
Authors	Naserentin V.; Somanath S.; Eleftheriou O.; Logg A.
Year	2022
Published	IFAC-PapersOnLine, 55, 11
DOI	http://dx.doi.org/10.1016/j.ifacol.2022.08.070
Abstract	Evidently, Smart Cities are on the rise and there is an increasing need for digital twins of these complex environments and their corresponding 3D models. The creation and maintenance of such twins is a time consuming task, since cities are living evolving organisms. In this paper we are presenting work done within the Digital Twin Cities Centre (DTCC) in Sweden in the field of automated 3D city model generation. We showcase a novel method of combining open source and commercial software for creating digital twins of any urban context in a procedural way from raw input data and using Unreal Engine as a visualization front-end. We combine two different workflows, one based on the commercial software suite Feature Manipulation Engine and in parallel we utilize the open source code developed within the Centre, dubbed DTCC Builder. The assets created can be used in urban planning, multi-physics continuum mechanics simulations and for visualization and illustration on a 3D scale. By using, in a complementary way, established commercial software and state of the art open source C++ code we manage to utilize the quality of life features the first provides, while assigning the demanding tasks of comforming mesh generation to the former. The longer term goal is (nearly) real-time mesh digital twinning of any city and user interaction with the 3D assets provided. Copyright © 2022 The Authors.
Author Keywords	3D city models; Data pipelines; Digital Prototyping; Digital Twins; FME; Unreal Engine

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