virtualglobe-orientedvisualizationmethodofmulti-scalevectordata

inordertoachievetheinte g ratedvisualizationofmulti-scalevectordata,ima g e,andterraindataonawebvirtualg lobeandfacilitatetheanal y sisandq uer yofvectors p atialdata，basedonag e-ometr y-basedmethod，weinte g ratetwo-dimensionalvectordata，multi-scaleterraindata,andag loballatitude-lon g itudediscreteg rid.wep ro p oseavirtualg lobe-orientedmulti-scalevectordatastructurewithablocked-basedconstructionandor g anizationmethodformulti-scalevectordata.furthermore，aimin gatefficientvisualizationofvectordataonavirtualg lobe,avisualization-orienteddou g las-peu-ckervectordatacomp ressional g orithmisalsop ro p osed.finall y，basedontheweb3dvirtualg lobep latform geoglobe wedevelo panex p erimentals y stemtorealizetheconstruction，or g anizationandvisualizationofg lobalmulti-scalevectordata.ourex p erimentalresultsshowthatthesemethodsarep racticalandefficient.