GeomaticsandInformationScienceofWuhanUniversity Vol.37No.4 Apr.2012 : (2012) :A (1, 22,210093) :, : ; ; ;Sort :P

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1 GeomaticsandInformationScienceofWuhanUniversity Vol.37No.4 Apr.2012 : (2012) :A (1, 22,210093) : : ; ; ;Sort :P208 [3],, [3] 1 :1, ;2 LOD [1] [2] ; [1] GPU, P,G,R ,Molnar Sort- 1 Fig.1 DataParalel,FunctionParaleland IntegratedParalel : : ( )

2 first Sort-middle Sort-last 3 [4] ( 2) 1)Sort-first Sort-first GPU WireGL [5] Display Wal [6] Sort-first 2)Sort-middle ity [7] PGL [8] Chromium Sort-middle 3)Sort-last [9] Sort-last Pixel-Flow [10] Paralel-Mesa [11] Sort-last Sort-first, Sort-first PC CPU, Sort-first [12] WireGL [5] Display Wal [6] Sort-middle, Sort-first Sort-last Chromium [9] Paralel-SG [13] Sort-last, Sort-first,Sort-last Sort-middle InfiniteReal-, 3,, Chro-, mium [9] Paralel-SG [14] CPU Sort-middle Infinite Reality [7] Sort-last Pixel-Flow [10] Sort-last ParalelMesa [11] Sort-middle PGL [8],, [14-16] 2 2 Sort-first Sort-middle Sort-last Fig.2 Sort-first,Sort-middleandSort-last Architecture ,,,, [16,17] ( ) ;

3 37 4 : 465 [16-24], 3.2 [16,22,25-28] :, ; [16], ; [30] LOD, ; [31] CPU GPU , GIS CPU [29] GPU, 1) / (Client/Server), 1), [30-34] ;,, / 2) 2) CPU GPU [22,35,37-39] 3), ; : 1) Sort [25] Sort-first Sort-last [27] Sort-first [36] Sort-last, :, 2) (P2P) [22,37-39] ;

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