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1、Proceedingsofthe2005WinterSimulationConferenceM.E.Kuhl,N.M.Steiger,F.B.Armstrong,andJ.A.Joines,eds.EXPERIMENTALINVESTIGATIONOFTHEIMPACTSOFVIRTUALREALITYONDISCRETE-EVENTSIMULATIONJusticeI.AkpanRogerJ.BrooksDepartmentofManagementScienceLancasterUniversityManagementSchoolLancast
2、er,LA14YXUNITEDKINGDOMABSTRACTThispaperpresentstheexperimentsconductedatLancas-terUniversity,UK,in2004toinvestigatetheimpactsofThispaperpresentstheresultsofexperimentalstudiesthatvisualdisplay(3D/VRand2D)onspottingerrorsinDESwereundertakentotesttheimpactsofVirtualReality(VR)m
3、odelatthetestingandvalidationstageofsimulationonDiscrete-EventSimulation(DES).Theexperimentsmodelingprocess.focusedonspottingerrorsintheDESmodel.ThemodelsThemodelsusedfortheexperimentsweredevelopedweredevelopedin2Dand3D/VRdisplaysusingin2Ddisplayand3D/VRperspective(2.5D).Henc
4、e,theWITNESS.The2Ddisplayusediconsandothervisualiza-term3D/VRmodelusedfortheexperimentsreportedintiontechniquesthatconfineitsscopetoessentiallyflat2Dthispaperactuallyreferstothe2.5Ddisplay.The2Ddis-surface.Ontheotherhand,the3Ddisplaywasrepresentedplayusesiconsandvisualization
5、techniquesthatconfineitsbymeansofathree-axisspatialposition(XYZ)plots,butscopetoessentiallyflat2Dsurface(seeFigure4).Ontheappearedonatwo-dimensionallymappings,otherwiseotherhand,the3Ddisplaywasrepresentedbymeansofaknownas2.5D.Theexperimentsinvolvedpaidpartici-three-axisspatia
6、lposition(XYZ)plots,butappearedonapantswhowererecruitedfromamongstthestaffandstu-two-dimensionallymappings.Althoughthisdisplay(seedentsofLancasterUniversity,UK.TheresultsshowedthatFigure5)providesmuchoftheoutstandingvisualizationitiseasier,andfastertospoterrorsin3D/VRmodeltha
7、nfeaturesofthe3Ddisplay,itistechnicallynotafull3Din2D.Thefindingsalsoindicatedthatuserscaneasilyun-displaybutaquasi-3Dor2.5Ddisplay(Clevelandandderstandthemodeledoperationof3D/VRdisplaycom-McGill1988,McAllister1993).Thisisbecauseitcontainsparedto2D,irrespectiveofbackgroundort
8、echnicalabil-norealbinocularstereographicdeptheffects.ity.Thereasons
