顾及语义的地上下无缝集成多尺度建模方法

:2010-04-07:(50525414);(2006AA12Z216,2008AA121601):(1982-),,,;(1966-),,,,第31卷第9期2010年9月东北大学学报(自然科学版)JournalofNortheasternUniversity(NaturalScience)Vol31,No.9Sep.2010张元生1,吴立新1,2,郭甲腾1,杨宜舟1(1.,!110004;2.,!100875)!!!:,,;,6LOD,Geos3DV1.0,,,!!:;;;;;:P208!!!:A!!!:10053026(2010)09134104AnAgroundUndergroundSeamlesslyIntegratedMultiscaleModelingMethodConsideringSemanticsZHANGYuansheng1,WULixin1,2,GUOJiateng1,YANGYizhou1(1.SchoolofResources&CivilEngineering,NortheasternUniversity,Shenyang110004,China;2.InstituteofSpatialInformationScienceandTechnology,AcademyofDisasterReductionandEmergencyManagement,BeijingNormalUniversity,Beijing100875,China.Correspondent:WULixin,Email:[e-mail])Abstract:Themultiscalemodelingoftheagroundundergroundintegratedspaceisthekeytechnologyfordigitalmine,digitalcityanddigitalgeotechnicalengineering.Analyzingthemultiscalegeoscientificdata,theywerepartitionedtakingaccountofsemanticssoastodevelopaseriesofmultiscalemodels,inclusiveofsemanticdifferences.Integratingtheseamlessmodelingwithmultiscalemodeling,anarchitecturebasedonthe6levelLOD(levelofdetail)oftheagroundundergroundintegratedmultiscalemonolithicmodelingwasproposed,whichwasimplementedonthesoftwareplatformGeos3DV1.0.Experimentalapplicationresultsshowedthatthemethodofagroundundergroundseamlesslyintegratedmultiscalemodelingwithsemanticstakenintoaccountcantakefulladvantageofgeoscientificdatatomodeltheaground,surfaceandundergroundobjectsintegrally,thusprovidinganewtechnologicalapproachtotheseamlesslyintegratedmultiscalemodelingforgeoscience.Keywords:geoscientificdata;semantics;seamlessintegration;spacemodeling;multiscalemodeling;digitalmine,(3D),,3D,[1-3]3D[4-6],3D,(100km2)3D,[5],,1!:,,,,[7],,,,,,,,;,,,,(TIN),,,;,,,2!2.1!,,,,,,,:0,,0,;,,0,0,,,,,11!Fig.1!Principleofmultiscalepartitionofgeoscientificdatawithsemanticstakenintoaccount,,,,,,,,;,,,;,,,,;,1342东北大学学报(自然科学版)!!!!!!!!!!!第31卷2.2!,,,,,6,2,6,12!Fig.2!Seriesofmultiscalemodelsdrivenbysemantics!1!Table1!PhysicalmeaningsofmodelsondifferentscalesASUUGUBUEALOD1()CSGSLOD1:1000mDEM:1000m(spot51km,FY-21.25km)UGLOD1ALOD2CSGSLOD2:250mDEM:256m(256m,30m)UGLOD1UBLOD1!∀UBLOD2∀ALOD3CSGSLOD3:90mDEM:30m(HJ-130m,ResourceSAT-156m)UGLOD2UBLOD2ALOD4CSGSLOD4:30mDEM:5~15m(P658m,spot-44m,ResourceSat-15.8m)(Landsat-7,15m,spot-510m)UGLOD3UBLOD2UELOD1UELOD2ALOD5(BRep)SLOD5:15mDEM:2.5m(spot-51m)UGLOD4UBLOD3ALOD6SLOD6:5mDEM:0.5~1m(0.5m,QuickBird0.61m,IKNOS1m)UGLOD5UBLOD3!UELOD3UELOD4LOD1,;LOD2,,;LOD3LOD2,,;LOD4,;,,,;LOD5,,;LOD6,3!CSG+TIN+GTP[5,8],,CSG+TIN+GTP[8],,31343第9期!!!!!!张元生等:顾及语义的地上下无缝集成多尺度建模方法3!Fig.3!Typicalarchitectureofagroundundergroundseamlesslyintegratedmultiscalemodeling4!!!,Geos3DV1.0,4,35911472;30m05m;18,15,3,5,7,3,,6;,,4!Fig.4!Examplesofagroundundergroundseamlesslyintegratedmultiscalemodeling(a)∀LOD1;(b)∀LOD2;(c)∀LOD3;(d)∀LOD4;(e)∀LOD5;(f)∀LOD6,,26;65!!!,,,,,:[1]ChuCH,ChanYH,WuPH.3DstreamingbasedonmultiLODmodelsfornetworkedcollaborativedesign[J].ComputersinIndustry,2008,59(9):863-872.[2]MeleroFJ,CanoP,TorresJC.Boundingplanesoctree:anewvolumebasedLODscheme[J].Computers&Graphics,2008,32(4):385-392.[3]SchlenderD,PetersOH.Managinglevelsofdetailwithfuzzycontrol[J].Computers&Graphics,2000,24(2):245-251.[4]YangBS,LiQQ,ShiWZ.Constructingmultiresolutiontriangulatedirregularnetworkmodelforvisualization[J].Computers&Geosciences,2005,31(1):77-86.[5],,[J],2006,15(5):1-5(WuLixin,CheDefu,GuoJiateng.Thenew3DGISforseamlessintegrationofterrainovergroundandundergroundentities[J].EngineeringofSuveryingandMapping,2006,15(5):1-5.)[6],[J],2004,24(4):1-3(WangJiayao,ChengYi.Themultiplecharacterofspatialdataandautomatedgeneralization[J].HydrographicSurveyingandCharting,2004,24(4):1-3.)[7][J],2005,3(2):1-5(LiZhiling.Atheoreticaldiscussiononthescaleissueingeospatialdatahandling[J].GeomaticsWorld,2005,3(2):1-5.)[8],[J],2009,25(1):64-67(ZhangYuansheng,WuLixin.Atopologicaltriangularsetsbasedagroundundergroundspatialdataintegrationmethod[J].GeographyandGeoInformationScience,2009,25(1):64-67.)1344东北大学学报(自然科学版)!!!!!!!!!!!第31卷