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Auteur S. Landes |
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Funktionalität des internetbasierten 3D-Campus-Informationssystems der Universität Karlsruhe (CISKA) / S. Landes (1999)
Titre : Funktionalität des internetbasierten 3D-Campus-Informationssystems der Universität Karlsruhe (CISKA) Titre original : [Fonctionnalité du système d'information 3D basé sur internet de l'université de Carlsruhe] Type de document : Thèse/HDR Auteurs : S. Landes, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 1999 Collection : DGK - C Sous-collection : Dissertationen num. 513 Importance : 89 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-9551-9 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Systèmes d'information géographique
[Termes IGN] Carlsruhe
[Termes IGN] internet
[Termes IGN] milieu urbain
[Termes IGN] réalité virtuelle
[Termes IGN] système d'information géographique
[Termes IGN] visualisation 3DRésumé : (Auteur) Spatial information systems normally allow a two-dimensional modeling and presentation of a three-dimensional world. These strategies reduce three-dimensional objects to two-dimensional models, where the reduction is related to a significant loss of information. Loss of information may be accepted for a multitude of applications but it leads to undesirable restrictions on information systems that depend on an adequate presentation and analysis of a three-dimensional world. One of these applications are urban information systems, especially where the visualization of urban elements and the propagation of their functionality is described.
This thesis deals with the development of distributed urban 3D information systems on basis of open standards derived from Internet/Web technologies. It considers the application of standards for the implementation of client/server systems and user interfaces.
The main emphasis of the thesis is the presentation of three-dimensional objects in an information system. It covers the visualization of objects in a virtual 3D world and the development of suitable human computer interfaces that make it possible to access the objects and their functionality.
For the design and modeling process of objects, concrete guidelines that consider human perception of 3D objects are devised. Problems related to the user exploring a 3D scene are discussed, as the user interface for a 3D information system is designed.
Contemporary user interfaces offer a graphical 2D user interface (GUI). In a 2D GUI, objects are represented by two-dimensional models. Using three-dimensional representations new user requirements arise relating to the navigation and interaction in a virtual 3D world. Hence the user should be supported by the introduction of metaphors. Therefore the town metaphor, which is especially important for urban information systems, is introduced and is expanded into the idea of a campus metaphor.
The other main emphasis of the thesis is the practical application of the ideas described above. Consequently the 3D campus information system of the Karlsruhe University (CISKA) has been developed and implemented in the framework of this thesis. CISKA has been developed on the basis of common Internet/Web standards and offers a real-time exploration of the university campus in 3D. With the help of a standard Web-browser the user is able to move in a three-dimensional environment and to interact with the three-dimensional objects over the Internet. Through the implementation of additional navigation resources even inexperienced users are able to use the query, analysis and simulation functionality of the system.Numéro de notice : 59880 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/INFORMATIQUE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=60655 Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 59880-01 37.30 Livre Centre de documentation Géomatique Disponible