30878.三維場景模型的快速構建與應用技術研究

1、I分類號：密級：學號：單位代碼：10407碩士學位論文論文題目:三維場景模型的快速構建與應用技術研究三維場景模型的快速構建與應用技術研究研究方向地理信息系統地理信息系統專業(yè)名稱測繪工程測繪工程研究生姓名肖烽導師姓名、職稱劉小生劉小生教授教授2011年3月20日江西贛州III3dmodelingefficiencystillstaysinmanualmodelingstage.Itstillhasmanydifficulttorealiz

2、eautomaticmodeling.Thetechnologiesdevelopmentofthree.dimensionalspacerelationdatamodelingisarenotperfectsecondbecausetheromanceof3dspatialdatainexistinghardwareequipmentprocessingefficiencyisstillrelativelylowanotherhigh

3、.precisionlifelikescenemodelrequiresalotofhumanmaterialfinancialresourcestime.Onthepremiseofmeetapplicationrequirementhowcanimprovetheconstructionof3dscenemodelbecomeoneofthekeytechnologyofthefieldsofgeosciencesintheperi

4、od.ThisstudytakeGanZhoucitylargescaleexistingdigitalmapsfmaindatasourcestakeDEMDOMothersubjectdatafsupplementtake3dscenemodelastheresearchtargettoopenpaperdiscusses.Itfirstlyintroducesthesourceof3dspatialdatathemethodofa

5、ccessingthesourcedata.Secondlytakingterrainresidentsroadvegetationwatersystemgeographicalfactsintoaccountprobesintothetechnologythemethodoftherapidconstructionof3dgeographicsceneIn3dsurfacemodelofconstructionthebrokenpoi

6、ntwasusedtoconstructtheTINdatathentherulesgridDEMwasbuiltbyelevationinterpolatedConstructioningeophysicsmodelaccdingtodifferentfeatureselementsoftheentitystructurecodingclassificationattributestageusingdifferentmodelsour

7、cedataoutputrealizingtherapidconstructionofgeophysicsmodel.ThenaccdingtothenationalDLGdatastructurewithDWGdatastarditwasanalyzedtothestagemanagementmethodoftheexistinglargescalespatialdataattributedatadigitalmapthecontro

8、lmethodoftheprogramqualitycontrolofautomationacquisitionmodebasedonCADGIStechnologyisproposedaccdingtothesoftwareengineeringidearealizedthree.dimensionalscenemodelsourcedataprocessingsoftwarethepurposewasreachedoftheauto

9、mationoutputSHPDXFmodelsourcedata.Basedonthespecificurbanplanningapplicationexamplestherapidconstructionapplicationofprojectscenewasmakingbytheabovetheymethodachievedgoodproductionapplicationeffectverifiesthefeasibilityo