A tool called GeoVR has been designed and developed under a client/server architecture to enable the interactive creation of a 3D scene and virtual reality modeling language (VRML) model from 2D spatial data by integrating Internet geographical information system (GIS) and HTML programming. The client front-end of this tool provides an HTML form to set properties for building 3D scenes, while t...

The needs for three-dimensional (3D) visualization and navigation within 3D-GIS environment are growing and expanding rapidly in a variety of fields. In a steady shift from traditional two-dimensional (2D) GIS toward 3D-GIS, a great amount of accurate 3D data sets (e.g. city models) have become necessary to be produced in a short period of time and provided widely on the market. This requires a...

In this paper we show how to efficiently integrate traditional GIS data into terrain models in order to generate complete 3D maps with little overhead for textures. The results meet the requirements for the Web 3D Service (W3DS), a proposal for the standardization for delivering 3D web maps. Our approach is designed to create fully vectorized 3D scenes that deliver the best possible quality and...

This paper presents a Geographic Information Systems (GIS) based navigable 3D animation of project activities to visualise and review a construction project schedule as an alternative to the existing 4D CAD tools. Most of the commercial tools allow planners to build a 4D model but lack features like generation and manipulation of developed 4D model on a single platform. To facilitate the 4D mod...

We report on a preliminary study carried out for the development of a 3D-GIS, which is supposed to manage geoscientific data of the Lower Rhine Embayment. The implementation of geometric 3D-operations is fundamental for 3D-GIS. Here we present the realization of an extensible geometric library implemented within an object oriented prototype database kernel system. The spatial representation use...

Data integration is a very important strategy to obtain optimum solutions in geo-scientific analysis, 3D scene modelling and visualization. This paper mainly focuses on the integration of GIS-data, stereo aerial imagery and DSM to derive automatically wind erosion obstacles in the open landscape to enhance the Digital Soil Science Map of Lower Saxony in Germany. The extracted wind erosion obsta...

A 3D hydrodynamic/pollutant transport model was used to simulate the currents and pollutant transport in coastal areas. The bathymetric and shoreline data was provided to the model via a GIS module that operates in the ArcView GIS environment. The module is efficient and capable of generating bathymetric rectangular grids and shorelines of different resolution for open and closed boundary scena...

30 road ~odels are widely used in many computer applications such as racing games and driving simulations_ However, almost all hl~h.-fideilly 3D road models were generated manually by professional artists at the expense of intensive labor. There are ver:J few eXlsllng methods for automatically generating 30 high-fidelity road networks, especially those existing in the real world. This paper pr....

The generation and visualisation of large 3D landscape and city models have received significant attention over the last few years – both in the scientific and the commercial community. Recent progress in 3D data capturing and web-based visualisation technologies are opening up new possibilities for a wide-spread use of these 3D models as a basis for new and exciting geoinformation applications...

Many activities wait for 3D solutions in data storage, processing and analysis. Some of the most appealing ones are urban planning, environmental monitoring, telecommunications (mobile services), public rescue operations, real-estate market, utility management. The role of geo-information in all kinds of business processes is increasing as well. Most business transactions rely on information sy...