浅谈DLG-DTM-DEM-DOM的建立及其关系

20053DLGDTIMDE]MDOM(450003)(DLG)(DTM)(DEM)(DOM),,,,,P231.5,,20017,(DLG)(DTM)(DEM)(DOM),,,,,,DLG,,4D,DTM,DEMDTM,11,(x,(z)DEM,DOM,,,1(DLG)DLGVirtuoZoJX4AAutoCAD2000GIS,70801:10000,,21.1,(),DOM()Microstation,Aut0CAD2000LMAGQ,1:ro000,0.1mm,0.mm,(5480),GIS(DLG)1.2,VirtuoZoJX4A54,2(DTM)DTM6721,DTM,DTM,DTM,,,,,,,DTM,DTMDTM,JX4AVirtuozo,Jx4Avi02,DTM,DTM,,,,DTM,,DTM,DTM;,,,,,,,;DTM,,(),,dxf,,DTM3(DEM)23.1DTM,DEM,DTM,(DEM)3.2DLG,,DEM3.2.1AutoCAD2000,,25cm2(6),,TIN3.2.2,ArcnfoArc/Info,,,,3.2.3TINDEMGeodem,TedkWtlntTIN,DEMDEM8300m,DEMDEMDEM,,DEM,DEM4(DOM)24.1VirtuoZoDOM,,DOMDOM,2(X)53:DLGDTMDEMDOMDEMDOM,,DOM;DOM,DEM,,DEM,DEMDOM,DOM,DOM4.2PhotomapperDEMDOM,,,,DEMDEM,DOM5DDDLGDDDLGDDDTMMMDDD0MMM(l)DLGDEM,DTMDEM,DEM()DOM;DTM,DTM,,,XY,,,(DLG)DOM,DLGGeostar1:10000DEMDOMDLG,3,6,,,,l],.M.:,1997.1DLGDTMDEMDOM:2)41101,:,,4D,,DiscussionsontheBuildingofDLG,DTM,DEM,andDOMandTheirRelationshiPsANVenmeiAbstraetDigitalLineGranhie(DLG),DigitalTerrainModel(DTM),DigitalElevationModel(DEM),dDigitalorthohieM(DoM)(alsoknownas4D)arekemelandfundamentaleomPonentsofSPatialdatabase.ThewaysoftheirProduetionarebeeongmajoreoneerns.ThisPapermainlyfoeusesonthemethodsof4DProduetionandtheirrelationshiPs:itindieatesthat4DProduetion15basicallymanualoperations,50it15somewhateoekamaeandloweffieieney.Itfinallyeoneludesthatthemosturgentehallenge15tosimPle,andtointelligentize4DProduetionandtransferenee.KeywordsDigitalMapTriangulationNetworkGeograPhleInformationDatabase