基于B+樹索引的CADASTREVCT數(shù)據(jù)轉(zhuǎn)換研究.pdf

1、南京師范大學(xué)碩士學(xué)位論文基于B樹索引的CADASTREVCT數(shù)據(jù)轉(zhuǎn)換研究姓名：張習(xí)闞申請學(xué)位級別：碩士專業(yè)：地理學(xué)地圖學(xué)與地理信息系統(tǒng)指導(dǎo)教師：沈陳華20090524IIAbstractGeographicInfmationSystem(GIS)hasbeenusedwidelyinrecentyearsespeciallyintheLPlanningEnergyTransptationEnvironmentprotectionNati

2、onaldefenseothersocialsects.Itisplayingmememajroleinsocialeconomydevelopment.ThedifferentGISplatfmstagefmatneedstocarryonthefmattransfmationtomeetthedatasharingneed.CADASTREVCTiscadastralvectdatastardtransferfmatmadebyTh

3、eMinistryofLResourcesbasedonGeospatialdatatransferfmatofChina.AsanimptantaspectofLmanagementindustrystarditrequiresthatthedomesticcadastralsoftwareshouldatleastprovideinterfacefdatareadingdatatransfer.Butfthecadastralsof

4、twarebasedonthefeignGISsoftwareplatfmwehavetomaketransfmationbyourselves.Howeverintheprocessoftransfmationinthepastthedatatransfermethodcouldnoteffectivelyassociategeometryelementsgeometryelements，aswellasgeometryelement

5、sattributes.Itisatalosstotransfmlargeamountofdata.GMLasthecodestardofGIShasaverystrongopennessgoodcompatibilitywithotherdatafmatrepresentativeofcertainsignificancetherefetheconsiderationtotransfmtheCADASTREVCTtoGMLhasani

6、mptantpracticalsignificance.ThispapertooktheconstructionofprototypesystemusedtotransfmCADASTREVCTtoGMLasthemasterstroketooksomecity’scitycadastralvectdataasthedatasampletookVisualStudio2005asthesoftwareplatfmresearchedon

7、therapidtransfmationofCADASTREVCTtoGMLbaseonBplustreeindexmechanismestablishedthedatastructureoftransfmationrealizedthealgithmdesignedrealizedindexfoundationmoduledatatransfermodulefinallyestablishedthedatatransferplatfm

8、inthedevelopmentenvironmentofVisualStudio2005.Inthispaperthemainresearchcontentisasfollows:analyzedthepresentsituationofdomesticfeigndatatransfmationanalyzedtheacteristicsdatastructuredocumentfmatofCADASTREVCTdiscussedth