简介:Thispaperpresentsadirectmethodtofindtheinternalfaces.Itusesfoursetsofinformation:1getthecoordinatesofeachpointonthe3Dcompositeobjects;2basedonthe3Dcoordinatestocalculatealltheplaneequationoftwoobjects;3calculatealltheintersectinglinesofthetwoobjectsandexcludetheintersectinglineswhicharenotwithinthescopeoftheplane;4findingtheinternalface,theremainingintersectinglinesformedtheplaneistheinternalfaceofthetwoobjects.Weproposedanewalgorithmforfindinginternalfaces.Thisalgorithmcouldbeadaptedtoanyregularcompositeobjects.Thealgorithmworkswellforfindinginternalfaces.
简介:Thispaperdescribesanimmersivesystem,called3DIVE,forinteractivevolumedatavisualizationandexplorationinsidetheCAVEvirtualenvironment.Combininginteractivevolumerenderingandvirtualrealityprovidesanaturalimmersiveenvironmentforvolumetricdatavisualization.Moreadvanceddataexplorationoperations,suchasobjectleveldatamanipulation,simulationandanalysis,aresupportedin3DIVEbyseveralnewtechniques.Inparticular,volumeprimitivesandtextureregionsareusedfortherendering,manipulation,andcollisiondetectionofvolumetricobjects;andtheregion-basedrenderingpipelineisintegratedwith3Dimagefilterstoprovideanimage-basedmechanismforinteractivetransferfunctiondesign.ThesystemhasbeenrecentlyreleasedaspublicdomainsoftwareforCAVE/ImmersaDeskusers,andiscurrentlybeingactivelyusedbyvariousscientificandbiomedicalvisualizationprojects.