Aasgaard R,T Sevaldrud.Distributed handling of level of detail surfaces with binary triangle trees.Proc.ScanGIS,2001,45-58.
[7]
Steve Cunningham.Lessons from scene graphs: Using scene graphs to teach hierarchical modeling.Computers& Graphics,2001,25(1).
[8]
P Lindstrom,D Koller,W Ribarsky,L F Hodges,N Faust,G A Turner.Real-time,continuous level of detail render- ing of height fields.In Proceedings SIGGRAPH 96,ACM SIGGRAPH,1996: 109-118.
[9]
M Duchaineau,M Wolinsky,D E Sigeti,M C Miller,C Aldrich,M B Mineev-Weinstein.Roaming terrain: Real- time optimally adapting meshes.In Proceedings Visualiza- lion 97,IEEE,Computer Society Press,Los Alamitos,Cal- ifornia,1997: 81-88.
[10]
Renato Pajarola.Large scale terrain visualization using the restricted quadtree triangulation.In Proceedings Visu- alization 98.IEEE Computer Society Press,1998: 19-26,515.
[11]
Stefan Rottger,Wolfgang Heidrich,Philipp Slasallek,Hans-Peter Seidel.Real-Time Generation of Continuous Levels of Detail for Height Fields.ftp://faui90.informatik.u- ni-erlangen.de/pub/Publications/1998/ub.1998,2.ps.gz,1998,
