The Research of Digital City Construction Based on Virtual Reality Technology

2012 ◽  
Vol 562-564 ◽  
pp. 882-885
Author(s):  
Xiao Bin Deng ◽  
Jian Zhang
Keyword(s):  
Spatial Data ◽  
Computer Network ◽  
Three Dimensional ◽  
Geographical Information ◽  
Digital City ◽  
Virtual Reality Technology ◽  
Function Mechanism ◽  
Satellite Positioning ◽  
City Construction ◽  
Spatial Data Model

Digital City is the digital technical service system which is synthetically applying such as Geographical Information System (GIS), Remote Sensing (RS) ，Satellite Positioning System, Computer Network, Multimedia, Virtual Simulation and so on many kinds of technical methods, automatically gathers and dynamically manages City’s infrastructure, function mechanism, and at last assists Decision-making Supports. The Three-Dimensional Urban GIS (3D UGIS) is the key supporting technology of the Digital City, and also needs certain key technology to support it. Such as building 3D Spatial Data Model, huge spatial data’s storage method in spatial database, and reconstructing 3D virtual scene. And this thesis precisely centers on these key problems to launch research.

Integrated 3D Spatial Data Model of Object-Oriented Digital Landslide

2012 ◽  
Vol 204-208 ◽  
pp. 4872-4877
Author(s):  
Da Xi Ma ◽  
Xiao Hong Liu ◽  
Li Wei Ma
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Data Modeling ◽  
Object Oriented ◽  
Landslide Modeling ◽  
Space Data ◽  
Spatial Data Model ◽  
Three Dimensional Space

By analyzing the attributes of three-dimensional space data model, the integrated 3D spatial data adopts object-oriented method for digital landslide modeling. It achieves spatial data modeling for landslide geological entity. An experimental case is given to indicate the feasibility of this approach for spatial data modeling.

The Developing of Query and Analysis System for 3D Digital City

2014 ◽  
Vol 926-930 ◽  
pp. 673-676
Author(s):  
Meng Li
Keyword(s):  
Virtual Reality ◽  
Spatial Analysis ◽  
3D Visualization ◽  
Digital City ◽  
3D Gis ◽  
Gis Technology ◽  
Virtual Reality Technology ◽  
Visualization Technology ◽  
City Construction ◽  
Analysis System

With the maturity of 2D GIS technology, and the development of 3D GIS and digital city, Not only can it browse roaming system, but it is more important in spatial analysis ability. The development of digital city technology for urban planning provides an effective way, with the 3D visualization technology, virtual reality technology and the applied 3D GIS spatial analysis function of 3D digital city construction. The development of the digital city faces the opportunity in this paper under the background of this 3D digital city is put forward the development and implementation of query analysis system.

Spatial Analysis and 3D Simulation of Underground Pipe Network Based on ArcGIS

2013 ◽  
Vol 353-356 ◽  
pp. 2948-2952
Author(s):  
Zheng Zhong Wu ◽  
Jun Ping Liu ◽  
Jing Jin ◽  
Hua Wang
Keyword(s):  
Spatial Data ◽  
3D Visualization ◽  
Three Dimensional ◽  
Pipe Network ◽  
Data Types ◽  
Underground Pipe ◽  
Digital Management ◽  
New Type ◽  
Spatial Data Model ◽  
The City

To resolve the problem that underground pipe network is large, complex, and difficult to manage, the management model based on ArcGIS was used. This paper aimed to transform the traditional data types of underground pipe network to a new type based on ArcGIS and to make statistical analysis and thematic maps output to the attribute datas for all underground pipes mainly including water supply network and drainage network. Through the analysis of pipe network visualization model implementation to build the spatial data model of three-dimensional pipe network, the automatic model from 2D to 3D would be achieved, then the new ways to realize the 3D visualization of urban underground pipe network would be provided. Taking the underground pipe network of a city as an example, the management system based on ArcGIS was built. The system running results show that the system could achieve the digital management of underground pipe network for the city and improve the management efficiency of the entire system.

Discussion on Application of Digital City Construction in Wuhan

2011 ◽  
Vol 368-373 ◽  
pp. 3825-3828
Author(s):  
Nan Lin ◽  
Fei Liu
Keyword(s):  
Urban Planning ◽  
Transport System ◽  
Public Services ◽  
Community Building ◽  
Three Dimensional ◽  
Urban Transport ◽  
Digital City ◽  
Digital Map ◽  
Digital Community ◽  
City Construction

The article from the perspective of the construction of digital city, analysed the necessity of digital wuhan construction, introduced digital wuhan's construction frame, from aspects of urban planning and infrastructural facilities, urban transport system, urban management, e-government, digital tourism, have discussed the digital application of city construction in wuhan, summarized and forecasts the prospects for development of digital wuhan in three dimensional digital map, digital community building and public services fields.

Application of a Virtual Geosciences Modeling System in Digital City Construction

2010 ◽  
Vol 20-23 ◽  
pp. 1311-1314 ◽  
Author(s):  
Chun Hua Dong ◽  
Jian Ping Hu ◽  
Li Wang
Keyword(s):  
Service Systems ◽  
New Method ◽  
Three Dimension ◽  
Geological Environment ◽  
Digital City ◽  
Spatial Query ◽  
Virtual Reality Technology ◽  
Digital Map ◽  
Geological Information ◽  
City Construction

This document puts forward a new method for solving the modeling of overground and underground entities and spatial analysis provided by the virtual reality technology (VR). The new method can construct virtual urban geological environment, realize the integrated modeling of overground and underground entities, and research the interactive functions such as 2D-digital map navigation and spatial query in the virtual environment, which provides the decision making platform of three-dimension visualization for urban planning, urban construction and urban management, and is a good foundation for construction of “the management and service systems for urban geological information”.

scholarly journals Seafloor mapping and cartography for the management of marine protected areas

2013 ◽  
Vol 4 (2) ◽  
pp. 120
Author(s):  
Manuel Meidinger ◽  
Markantonatou Vasiliki ◽  
Marcello Sano ◽  
Marco Palma ◽  
Massimo Ponti
Keyword(s):  
Protected Areas ◽  
Marine Protected Areas ◽  
Spatial Data ◽  
Geographical Information Systems ◽  
Three Dimensional ◽  
Local Scale ◽  
Geographical Information ◽  
Special Focus ◽  
Seafloor Mapping ◽  
Management Approaches

Geographical information systems (GIS) and diagnostic cartography have traditionally been shown to be useful tools for the application of ecosystem-based management (EBM). To date, bionomic and diagnostic cartographic approaches have been commonly used to support decision-making in the selection, zoning and management of marine protected areas (MPAs), with a range of practical tools developed for this purpose. In addition to these, new and emerging technologies have the potential for generating better information for scientists, managers and other stakeholders alike, such as underwater survey tools, three dimensional (3D) visualisation systems and interactive web platforms. These new methodologies allow taking into account the spatial heterogeneity and temporal variability of the marine environment, to be managed for conservation. This paper reviews emerging and innovative technologies for marine mapping and marine spatial planning with a special focus on their use in MPA management. These include the generation and use of benthic cartography, scientific visualisation of ecosystem analyses, web-based GIS platforms and their final use as decision-support tools. Seafloor mapping technology has been improved and become more affordable for local scale MPA management purposes. However, the lack of coherent local scale spatial data still remains an issue, limiting the power of diagnostic cartography analyses within MPAs. The proposed framework can improve the generation and dissemination of cartographic and visual data, and allow for management approaches based on scientific knowledge and EBM principles, taking into account stakeholders needs.

Spatial Data Topology in GIS Database

2012 ◽  
Vol 433-440 ◽  
pp. 3858-3862
Author(s):  
Yun Peng Sun
Keyword(s):  
Information Systems ◽  
Spatial Data ◽  
Geographical Information Systems ◽  
Review Process ◽  
Three Dimensional ◽  
Data Models ◽  
Geographical Information ◽  
Data Topology ◽  
3D Applications ◽  
Requirements Identification

Topology and its various benefits and functionality are fairly well understood within the context of 2D Geographical Information Systems. We summarize the principle of common 2D topology and the implementation of GIS databases. Existing topological frameworks and data models as a staring point to guide the review process, three key areas were studied for the purposes of requirements identification, namely existing 2D topological systems. However requirements in 3D have yet to be defined, with factors such as lack of familiarity with the potential of such functionality of 3D systems impeding this process. In this paper, we identify and review the requirements for topology in three-dimensional (3D) applications. Requirements for topological functionality in 3D were then grouped and categorized.

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