Basic HTML version of Foils prepared 9 April 98

Foil 6 Collaborative 3D GIS

From 3D Collaborative GIS in CIV Project Rome Laboratory CIV Final Review -- 9 April 98. by Marek Podgorny


Terrain and other GIS data stored on HTTP server and fetched over the network via HTTP protocol
Handles multiple types of GIS data
  • satellite imagery, topographic maps, various geological characteristics (i.e., vegetation, geological resources, and water concentration) and arbitrary 3D objects are visualized (complete database for NYS).
Wavelet compression for both DEM and satellite images, reduces size of data by a factor of 32 for DEMs and 30-60 for textures.
Adaptive mesh simplification technique results in rendering time reduction by a factor of 40.
Internal caching system with pre-processing
Level-of-detail rendering



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