Prof. Dr. Jürgen Döllner


Constraints as Means of Controlling Usage of Geovirtual Environments

Döllner, ; Jürgen, in Journal of Cartography and Geographic Information Science 2005 .

In this paper a concept for controlling the usage of geovirtual environments by means of constraints is developed. Constraints serve to improve the usability of geovirtual environments by guarding the navigation and interaction processes of users. In addition, they facilitate the implementation of Digital Rights Management for geovirtual environments. The presented approach distinguishes spatial constraints, structural constraints, and redistribution constraints. Several types of spatial constraints have been identified for navigation in geovirtual environments. To demonstrate their applications, this paper reports on using constraints in virtual 3D city models.
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