نتایج جستجو برای: 3d gis
تعداد نتایج: 221785 فیلتر نتایج به سال:
Developing a three-dimensional (3D) data model for Geographic Information Systems (GIS) is an essential and complex issue. 3D modelling in GIS is becoming ever more important for the development of cyber cities and digital earth, which have recently become feasible. A competent 3D model forms an efficient foundation for 3D visualization, query and spatial analysis. As a development of the exist...
Currently, a variety of software is capable of handling a wide range of spatial problems, beginning with approaches for describing spatial objects to quite complex analysis and 3D visualisation. However, an increasing number of applications need more advanced tools for representing and analysing the 3D world. Among all types of systems dealing with spatial information, GIS has proven to be the ...
Two-dimensional geographical information systems are extensively used in the geosciences to create and analyse maps. However, these systems are unable to represent the Earth’s subsurface in three spatial dimensions. The objective of this thesis is to overcome this deficiency, to provide a general framework for a 3d geoscience information system (GIS), and to contribute to the public discussion ...
This paper explores the use of World Wide Web (WWW, or simply Web) as a means of designing and developing a toolkit, GeoV&A, for interactive 3D visualization and analysis of existing 2D Geographical Information System (GIS) data. The toolkit is mainly composed of two parts. One is a 3D visualization tool and the other is a 3D analysis tool, including profile creation, viewshed analysis, volumet...
Currently, variety of software is already capable of handling a wide range of spatial problems, beginning with approaches for describing spatial objects to quite complex analysis and 3D visualisation. However, increasing number of applications need more advanced tools for representing and analysing the 3D world. Among all types of systems dealing with spatial information, GIS has proven to be t...
Geographic Information Systems visual products have become a powerful resource for Infrastructure Protection and Emergency Preparedness. The utility of informed decision making processes could significantly be improved using 3D web-based GIS visual models. However, collective efforts are needed for further improvement of currently available visual models to address Infrastructure Protection and...
Two-dimensional GIS are extensively used in geology to create, analyse, and interpret geological map models. However, these systems are unable to represent the Earth’s subsurface in three spatial dimensions. The objective of this article is to overcome this deficiency and to provide a general framework for a 3d GIS. The presented approach is based on existing 3d geomodelling theory and software...
Although 3D visualisation is becoming more common in GIS, as of yet, there has been relatively little in the way of 3D editing and analysis functionality especially in the web. This research describes a first attempt at addressing this deficit, documenting a 3D Web GIS with the ability to select, edit, 3D buffer, measure and retrieve attributes. A small user evaluation was undertaken to assess ...
This paper proposes integration of different technologies, techniques and standards to improve the efficiency of 3D mobile GIS applications. The paper describes different challenges that developers face while developing a 3D mobile GIS application. It then investigates different solutions to resolve the problems. Integration of client/server architecture and web services technologies together w...
This paper presents an endeavour of integration of GIS (Geographical Information System) and BIM (Building Information Modelling) for indoor geovisual analytics. The merits of two types of technologies, GIS and BIM are firstly analysed in the context of indoor environment. GIS has well-developed capabilities of spatial analysis such as network analysis, while BIM has the advantages for indoor 3...
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