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Multiresolution Terrain Database Visualization

Digital terrain visualization has received increasing research interest in recent years. One main problem focus has been the large size of terrain data, which needs to be stored on secondary storage hence causing a performance slow-down in terrain visualization. This paper surveys secondary storage terrain visualization techniques with a particular focus on spatial database systems supporting terrain visualization using TIN. Problems that need further investigation in this area are discussed and the approach to improve secondarystorage terrain visualization performance is proposed.