VRML For 3D GIS
نویسنده
چکیده
The three dimensional Geographic Information System (3D GIS) is an area of intensive investigations. A 3D GIS should be a system capable of maintaining and analyzing 3D spatial and thematic properties of real geographic objects. Most of the research efforts concentrate on stand-alone solutions. However, recent innovative technologies developed on the World Wide Web allow client-server alternatives of 3D GIS to be studied. The paper presents an approach to query, modify and interact with remote spatial databases, which aiming at providing functional capabilities of a 3D GIS. The approach is based on dynamically created VRML documents to portray 3D graphics (spatial data), HTML documents to formulate SQL queries, CGI scripts to access the database. The techniques proposed are examined by a prototype system. Working examples of spatial queries are described in detail and performance tests are discussed at the end.
منابع مشابه
Pii: S0098-3004(99)00073-4
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...
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