［11］Taylor David C,Barrett William A.An algorithm for continuous resolution polygonalizations of a discrete surface[A].In:Proceedings of Graphics Interface\'94[C].Canada,Banff,1994:33～42.
[2]
［2］Peter Berger et al.Towards a virtual reality interface for landscape visualization[EB/OL].http://www.ncgia.ucsb.edu/conf/SANTA-FE-CD-ROM/sf-papers/berger/paper.htm.1994.
［6］Reddy M,Leclerc Y G,Iverson L et al.Modeling the digital earth in VRML[R].AIC Technical Report No.559.SRI International,Menlo Park,CA,9 November,1998.
[5]
［8］Robert M Edsall,Mark Harrower,Jeremy Mennis.Visualizing properties of temporal and spatial periodicity in geographic Data[EB/OL].http://www.geog.psu.edu/apoala/a-papers.htm.
[6]
［10］Floriani L De,Puppo E.Hierarchical triangulation for multiresolution surface description[J].ACM Transactions on Graphics,1995,14(4):363～411.
[7]
［1］Al Gore.The digital earth-understanding our planet in the 21st century[R].1998.
[8]
［3］Pajarola R B et al.OTAW\'94-ViRGIS(Virtual Reality based Geographic Information Systems)[EB/OL].http://iamwww.unibe.ch/～www/WWW/CHOOSE/Articles/94-11/OTAW-94.Poster.5.html.1994.
[9]
［4］Mather P M.An investigation into user requirements for advanced spatial decision support systems[EB/OL].http://www.geog.nottingham.ac.uk/～mather/vr.html.1996.
[10]
［7］Theresa Marie Rhyne,Thomas Fowler.Examining dynamically linked geographic visualization[EB/OL].http://www.epa.gov/vislab/svc/publications/awma-gisvis.html.1996.
[11]
［9］Cignoni P,Puppo E,Scopigno R.Representation and visualization of terrain surfaces at variable resolution[J].The Visual Computer,1997,13(5):199～217.
