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1、BuildingtheVirtualRealityGISBasedonBrowser/Service121YanZhang,WeilingLi,LiangLiu1SchoolofResourcesandEnvironmentalScienceEastChinaNormalUniversityShanghai,China2HighSchoolAffiliatedtoTianjinAcademyofFineArtsTianjin,ChinaAbstract—WiththedevelopmentofWeb2.0andtheexpansionofcombin
2、ationofVRtechnologyandWebtechnology.IntheVirtualRealitytechnology'sapplication,thetechnicalstandardofconstructionofVirtualRealitysystemwithWebGISbasedon3DVirtualGraphicsbasedontheXML(ExtensibleMarkupX3Dtechnology,needtomeetthefollowingcharacteristics:First,Language)-X3Dwaspropo
3、sedbyWeb3DAlliance.ItisproposedtheclientsoftwaremustbeeasytointegratewithcommonWebthefeasiblemodelofVirtualRealityGeographicInformationbrowser,andtheuserscanaccesstothesystemthroughaSystemwhichbasedonBrowser/Servicestructure,throughalargecommonbrowseroraplug-indirectly.Second,t
4、hereal-timenumberofresearchesonthecurrentapplication,includeperformanceofVirtualRealitySystemrequiresthegraphicsfileBrowser/Servicestructure,VirtualRealitytechnologyandGIS.assmallaspossibleinthesimulationconditions.Third,theAndthispapersuggeststheorganizationalstructureofthespa
5、tialheterogeneityofclientdeterminestheformatof3DgraphicsfilesdataanddatabaseconstructionbasedonBrowser/Service.Inthisplatform-independent.Fourthly,theclient'sdisplayshouldthesis,theauthorputforwardtothefuturedirectionofresearchminimizedelayandoptimizedatastructuresfor3Dexpressi
6、oninanddevelopmentwhichbasedontheprototypeofWebVirtualordertoreducetheloadofthebrowser.RealityGIS.ThefilesconfigurationinX3DtechnologystandardsisKeywords-Browser/Service;VirtualReality;GISmodularity.Web3DLeagueputforwardtheWebGISModelsbasedonthenewfeaturesofX3DwhichsupportforXM
7、L.WebI.INTRODUCTIONGISusesBrowser/Servicestructure,andbuildsonthebasisofWiththerapiddevelopmentofWeb2.0andextensionoftheHTML,plug-in,AppletandsoontosolvetheHTMLproblemsVirtualRealityapplications,Web3DAlliancediscoveredthesuchaspoorexpandability,poorsemantics,poorinteraction,and
8、shortcomingsofVRML1.0technicalstandards[1],suchasmonot
