The Technique

The Dataprocessing and Export to VRML has been done with "Limelight" written by Martin Heller. Christian and me added all the interactive stuff manually. The Digital Elevation Model (TIN - Triangular Irregular Network) has been exported from the GIS "Arc/Info" whose vrml-export filter is a bit "quick and dirty".

The project makes extensive use of "LiveConnect" that is used as an interface between the VRML External Authoring Interface (EAI) from CosmoPlayer (VRML Viewing plugin) and Javascript with HTML. Therefore the code is unfortunately not portable to Internet Explorer or other VRML-plugins. In addition to that some of the Javascript functions (e.g. the eventCapturing of the mouse-movements) only work with Netscape 4.05 or above. Therefore viewing of these pages is limited to the combination "Netscape 4.05 or higher" and "Cosmo Player 2.1 or higher". We apologize for that.

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