From IFC to 3D Tiles: An Integrated Open-Source Solution for Visualising BIMs on Cesium

Chen, Yiqun; Shooraj, Erfan; Rajabifard, Abbas; Sabri, Soheil

doi:10.3390/ijgi7100393

Cited by 47 publications

(39 citation statements)

References 8 publications

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“…The SOS information service based on the KG is shown in FIGURE 9, which mainly includes three parts: a 3D scene, basic information, and the KG. The 3D scene is based on Cesium [51], which is used to display the operating scenario of space objects and other objects, and help users establish an intuitive understanding of the current SOS. The basic information includes the basic information of the selected space object, such as name, home country, purpose, orbital period, etc., and descriptions obtained from various websites using the web crawler.…”

Section: Case Studiesmentioning

confidence: 99%

Construction of Space Object Situation Information Service Based on Knowledge Graph

Lan

et al. 2020

IEEE Access

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To effectively guarantee the safety and efficiency of space activities, and to meet the needs of different levels of users for space object situation (SOS) knowledge, formalized and standardized SOS knowledge is needed to assist cognition. A knowledge graph (KG), as a suitable technology that can formally express knowledge and construct a standardized knowledge base, can provide knowledge generation, representation and intelligent service of SOS. In this paper, an SOS information service based on the KG (SOSKG) was constructed. Aimed at different scales of components in SOS, a multi-granularity knowledge structure was constructed, and a formalized expression of SOSKG was realized. To incorporate the complex relations into the SOSKG, a multi-level semantic relation parsing model and formalized representation were proposed from the three aspects of basic relations, spatial relations, and temporal relations. Additionally, a multielement knowledge construction model was constructed to address the dynamic characteristics of various relations in SOSKG under a complex spatio-temporal environment. This study constructed different cases and scenarios to test the service, and the results show that the proposed service can effectively organize and express SOS knowledge in a complex spatio-temporal environment, provide an intermediate bridge between users and SOS knowledge, and promote users' cognition of SOS knowledge.

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Section: Case Studiesmentioning

confidence: 99%

Construction of Space Object Situation Information Service Based on Knowledge Graph

Lan

et al. 2020

IEEE Access

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“…Multi-surface coordinates were converted to an array and then provided to the Cesium Primitive API for visualization. An example of the JavaScript code that provides coordinates of a building unit to Primitive API is as follows: There are several studies [29][30][31][32][33][34] that use Cesium library as a platform for visualization of 3D cadastral data, smart city applications, BIMs (Building Information Modeling) and other spatial data. Figure 4 provides an example of multi-surface geometry visualized by Cesium JavaScript library.…”

Section: Cesium Javascript Librarymentioning

confidence: 99%

Prototype of the 3D Cadastral System Based on a NoSQL Database and a JavaScript Visualization Application

Višnjevac

Mihajlović

Šoškić

et al. 2019

IJGI

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3D cadastral systems are more complex than traditional cadastral systems and they require more complex technical solutions and innovative use of developing technologies. Regarding data integrity and data consistency, 3D cadastral data should be maintained by a Database Management System (DBMS). Furthermore, there are still challenges regarding visualization of 3D cadastral data. A prototype of the 3D cadastral system based on a NoSQL database and a JavaScript application for 3D visualization is designed and tested in order to investigate the possibilities of using new technical solutions. It is assumed that this approach, with further development, could be a good basis for the development of a modern 3D cadastral system. MongoDB database is used for storing data and Cesium JavaScript library is used for 3D visualization. The system uses an LADM (Land Administration Domain Model) based data model. Additionally, script languages, libraries, application programming interfaces (APIs), software and data formats are used for the system development. The case study is based on the real cadastral data. The underground object and building units located below and above the ground level are used to test the proposed data model and the system’s functionality. The proposed system needs further development in order to provide full support to a modern 3D cadastral system. However, it allows maintenance of 3D cadastral data and basic 3D visualization with the interactive approach.

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“…Cesium is currently the only option for visualisation of geospatial 3D content on the web. It is recommended platform for visualisation of 3D GIS and BIM (Chen et al, 2018, Cesium, 2019b. Cesium is currently the only free 3D globe environment to visualise 3D objects.…”

Section: Visualisationmentioning

confidence: 99%

Systems Architecture for Management of Bim, 3d Gis and Sensors Data

Aleksandrov¹,

Diakité²,

Yan³

et al. 2019

ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci.

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Abstract. This paper presents a system architecture for structuring and manipulation of Building Information Models (BIM), three-dimensional (3D) geospatial information, point clouds and time series data obtained from sensors. The system consists of four layers including data pre-processing, data structuring and storage, system interface and front-end data manipulation. To enable the integration of different data, a unified UML model is developed. The paper explains all steps of 3D reconstruction, BIM geo-referencing, storage of spatial data and visualisation. Special attention is given to the integration of sensors data. The data model and the system architecture are tested for a university campus. The results demonstrate an approach for BIM-GIS-Sensor integration as part of Precinct Information Modelling (PIM). The system architecture allows for a flexible structuring and manipulation of different spatial data towards managing various 3D spatial and non-spatial data.

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From IFC to 3D Tiles: An Integrated Open-Source Solution for Visualising BIMs on Cesium

Cited by 47 publications

References 8 publications

Construction of Space Object Situation Information Service Based on Knowledge Graph

Construction of Space Object Situation Information Service Based on Knowledge Graph

Prototype of the 3D Cadastral System Based on a NoSQL Database and a JavaScript Visualization Application

Systems Architecture for Management of Bim, 3d Gis and Sensors Data

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