3D revision control framework

Doboš, Jozef; Steed, Anthony

doi:10.1145/2338714.2338736

Cited by 34 publications

(19 citation statements)

References 21 publications

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“…Their tests demonstrated the advantages of cloud computing over traditional approaches in terms of time, cost and performance. Dobos et al [53] employed a NoSQL database (MongoDB) to store 3D models to assist public consultation. Han and Stroulia [54] built their 3D data management system based on another NoSQL database called Hbase.…”

Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

“…MongoDB has previously been used in various applications such as building information modeling (BIM) applications. Dobos et al [53] developed a unified and integrated framework, called 3D Repo, which supports collaborative editing and the distribution of 3D assets, the results showing that MongoDB is suitable for 3D city model management. An advantage of NoSQL databases, in comparison with object-relational databases, is that they have a better capability for automatic data distribution and load balance.…”

Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

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Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

Mao

Harrie²

2016

IJGI

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Three-dimensional (3D), city models have been applied in a variety of fields. One of the main problems in 3D city model utilization, however, is the large volume of data. In this paper, a method is proposed to generalize the 3D building objects in 3D city models at different levels of detail, and to combine multiple Levels of Detail (LODs) for a progressive distribution and visualization of the city models. First, an extended structure for multiple LODs of building objects, BuildingTree, is introduced that supports both single buildings and building groups; second, constructive solid geometry (CSG) representations of buildings are created and generalized. Finally, the BuildingTree is stored in the NoSQL database MongoDB for dynamic visualization requests. The experimental results indicate that the proposed progressive method can efficiently visualize 3D city models, especially for large areas.

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Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

Mao

Harrie²

2016

IJGI

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“…Their tests demonstrated the advantages of cloud computing over traditional approaches in time, cost and performance. Dobos et al (2012) employ NoSQL database (Mongodb) to store 3D models in aid of public consultation. Han and Stroulia (2012) build their 3D data management system based on another NoSQL database called Hbase.…”

Section: Storage Methods Of 3d City Modelsmentioning

confidence: 99%

NoSQL Based 3D City Model Management System

Mao

Harrie

Cao

et al. 2014

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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Commission VI, WG VI/4KEY WORDS: 3D city model, NoSQL, data integration, multiple representation structure ABSTRACT:To manage increasingly complicated 3D city models, a framework based on NoSQL database is proposed in this paper. The framework supports import and export of 3D city model according to international standards such as CityGML, KML/COLLADA and X3D. We also suggest and implement 3D model analysis and visualization in the framework. For city model analysis, 3D geometry data and semantic information (such as name, height, area, price and so on) are stored and processed separately. We use a Map-Reduce method to deal with the 3D geometry data since it is more complex, while the semantic analysis is mainly based on database query operation. For visualization, a multiple 3D city representation structure CityTree is implemented within the framework to support dynamic LODs based on user viewpoint. Also, the proposed framework is easily extensible and supports geoindexes to speed up the querying. Our experimental results show that the proposed 3D city management system can efficiently fulfil the analysis and visualization requirements.

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“…The C++ backend is based on 3D Repo [Doboš and Steed 2012] which is an open source version control system (VCS). There, 3D models and associated metadata are stored in decomposed Binary JSON (BSON) format, see [Doboš 2015].…”

Section: System Overviewmentioning

confidence: 99%

glTF streaming from 3D repo to X3DOM

Scully

Friston

Fan

et al. 2016

Proceedings of the 21st International Conference on Web3D Technology

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Figure 1: An example of a 3D model shown with visibility culling in a web browser reducing the immediate GPU memory consumption. The view from outside (left) consumes 693 MB, whereas the view from the inside (right) with visibility culling consumes only 161 MB of the GPU memory. This is a part of a much larger scene shown in Fig. 8. Model courtesy of Canary Wharf Contractors Limited. AbstractAs Web3D technology advances, the need for delivering real-time 3D content online has gained traction in the academic as well as commercial world. Various efforts have been made in creating a suitable transmission format for streaming of 3D assets over the Internet. Despite being accustomed to waiting for long periods of time for massive scenes to load in CAD editors, end users often expect an instant rendering on a web browser. An effective streaming transmission format, coupled with progressive encoding methods, is able to create a better interactive experience for the users. Most of the existing techniques are either domain specific, tying the users in on a particular rendering engine, or they are too general; resulting in extra processing at the application level. In this paper, we demonstrate a novel method of transmitting 3D assets in glTF format for high interoperability and scalability in 3D Repo. Firstly, we extend glTF with the ability to stream binary data buffers with a progressive encoding technique to increase performance and overall client interactivity. Next, we extend X3DOM for glTF support and introduce multipart optimization into glTF as a way of grouping multiple meshes together which significantly reduces the number of network requests as well as draw calls. Finally, we investigate memory management protocols and devise a novel GraphicsMemoryManager suitable for streaming on top of X3DOM in order to render models that otherwise would not fit available video memory.

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3D revision control framework

Cited by 34 publications

References 21 publications

Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

Methodology for the Efficient Progressive Distribution and Visualization of 3D Building Objects

NoSQL Based 3D City Model Management System

glTF streaming from 3D repo to X3DOM

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