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Dynamic Online 3D Visualization Framework for Real-Time Energy Simulation Based on 3D Tiles
Nanjing Univ Finance & Econ, Coll Informat Engn, Nanjing 210023, Peoples R China.;MNR, Key Lab Urban Land Resources Monitoring & Simulat, Shenzhen 518040, Peoples R China..
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geoinformatics.ORCID iD: 0000-0003-1369-3216
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
2020 (English)In: ISPRS International Journal of Geo-Information, ISSN 2220-9964, Vol. 9, no 3, article id 166Article in journal (Refereed) Published
Abstract [en]

Energy co-simulation can be used to analyze the dynamic energy consumption of a building or a region, which is essential for decision making in the planning and management of smart cities. To increase the accessibility of energy simulation results, a dynamic online 3D city model visualization framework based on 3D Tiles is proposed in this paper. Two types of styling methods are studied, attribute-based and ID map-based. We first perform the energy co-simulation and save the results in CityGML format with EnergyADE. Then the 3D geometry data of these city objects are combined with its simulation results as attributes or just with object ID information to generate Batched 3D Models (B3DM) in 3D Tiles. Next, styling strategies are pre-defined and can be selected by end-users to show different scenarios. Finally, during the visualization process, dynamic interactions and data sources are integrated into the styling generation to support real-time visualization. This framework is implemented with Cesium. Compared with existing dynamic online 3D visualization framework such as directly styling or Cesium Language (CZML), a JSON format for describing a time-dynamic graphical scene, primarily for display in a web browser running Cesium, the proposed framework is more flexible and has higher performance in both data transmission and rendering which is essential for real-time GIS applications.

Place, publisher, year, edition, pages
MDPI , 2020. Vol. 9, no 3, article id 166
Keywords [en]
energy simulation, online 3D visualization, real-time, 3D tiles, dynamic styling
National Category
Other Earth and Related Environmental Sciences
Identifiers
URN: urn:nbn:se:kth:diva-272776DOI: 10.3390/ijgi9030166ISI: 000523512400045Scopus ID: 2-s2.0-85081966095OAI: oai:DiVA.org:kth-272776DiVA, id: diva2:1427286
Note

QC 20200429

Available from: 2020-04-29 Created: 2020-04-29 Last updated: 2020-04-29Bibliographically approved

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Ban, YifangLaumert, Björn

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