立体虚拟现实技术在铁路选线中的应用研究-郭良浩

223SerialNo.22320074TransportationScience&TechnologyNo.4Aug.2007:2007-03-09郭良浩(430063),,LOD1,CADAuto-CADCAD,,CAD(virtualreality),,,(DEM)(DOM),,,CAD,,,,,,,2,,,,211(DEM),DEMDEM,12DEM,,DEM,,DEM,DEM,,,,,,(),,,DEM12212(levelofdetail,LOD),[1],,,213,,,,,,;,,,,,2n,3km2,,,,3112,,2,,,512kB@512kB256kB@256kB,,,,,3.2(3),,11320074:,33.3,1GB,windows,,,Oracle,,,,Oracle,Oracle,,Oraclfe4,,,[2],,,5,,3DMAX,GIS,,,,,,,,[1],1[J]1,2002(9):22-241[2],1VC++6.0[J]1,2002(4):16-181ResearchoftheApplicationofStereo-virtualRealityTechnologytoRailwayDesignGuoLianghao(ThefourthSurveyandDesignInstituteofChinaRailways,Wuhan430063,China)Abstract:Therailwaydesignnowadaysisrealizedinplanemapsystem.ThisArticleintroducestheapplicationofvirtualrealitytechnologytorailwaydesignanddiscussestheblocksprocessingmethodofterrainandimages,usingdatabasetomanageterrainandimagedataandalsobringforwardthethoughtofmult-iprocesstechnologyaboutrea-ltimelyroamshow.Keywords:virtualreality;LOD;pyramid-image114:20074