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1.
Automaticmapnameplacementisanimportanttaskamongautomationofcartography,anditisal soachallengeincartographyandGISfield .Mapisadescriptivetoolthatusesasmallspacetorep resentalargespacesocontentsofmapoftencompeteforthemapspace .Ondensemap ,fea turesareclosel…  相似文献   

2.
Suite 51 0JardineHouse ,1ConnaughtPlace ,Central,HongKongTel:( 852 ) 2 52 63 679Fax :( 852 ) 2 8684 61 2http:/ /www .hkis .org .hkTheHongKongInstituteofSurveyorsGeneralCouncil2 0 0 0 / 2 0 0 1OfficeBearersPresidentMrStephenLIULingHongSr.Vice_PresidentMrCHANHakJr.Vice_PresidentMrKennethCHAN…  相似文献   

3.
NO 1TheActualityofPhotogrammetryandItsDevelopmentininNewCenturyLEIFang gui (3 )……………………CommunicatingbetweenPalm sizePCandGPSOEMBoardunderWindowsCEGAOZhen song ,GUOJing junetal (6 )…………………………………………………………………ResearchonApplicationofSurfaceSplineFunctioninDTMLICha…  相似文献   

4.
吴宇哲 《地图》2001,(1):18-20
数据分析和演示的空间化与地图化是当前空间信息技术发展的必然趋势。Microsoft地图是MicrosoftOffice办公自动化软件中的一个辅助应用程序 ,它为广大计算机用户提供了操作简单的专题地图制作 ,使得数据分析与空间表达相结合 ,从而让数据的表达更为直观和易于理解。一、创建基础地图在MicrosoftOffice软件中通常有两种示例基础地图 ,即世界地图和中国地图 ,显然仅有这些基础地图是不够的。为了适合用户的实际需要 ,还必须有更多基础地图。比如 ,要分析杭州市的一些统计数据 ,则必须建立杭州市的基础…  相似文献   

5.
A CADASTRAL SPATIAL DATA STORAGE STRUCTURE BASED ON RELATIONAL DATABASE   总被引:3,自引:0,他引:3  
1 IntroductionCadastralmapsandcadastralattributesarethecorecontentsofcadastralinformationmanage ment .SomeofthedevelopedcadastralmanagementsystemsemployGISsoftware (i.e .Mapinfo ,Ar cvieworMaptitudeetc .)tomanagecadastralmapsanduserelationaldatabase (e .g .SQL…  相似文献   

6.
在Mapinfo系统中嵌套Access7.0的方法   总被引:3,自引:0,他引:3  
本文从应用开发的角度阐述了Access7.0在基于Mapinfo二次开发系统中的应用方法与技术,结合土地管理信息系统的开发实践,讨论了如何将Access中可视化的面向对象方法和工具引入基于Mapinfo应用系统开发的过程。  相似文献   

7.
1 IntroductionTheidentificationofforestfire_pointsinNOAAimagesisthebasisofmonitoringforestfireusingNOAAsatellitedata .Thetraditionalapproachofi dentificationisvisualinterpretation .Bythevisualinterpretation ,betterprecisionisobtainedinprac tice,butexperie…  相似文献   

8.
1 IntroductionWiththerapiddevelopmentofaerialandspaceremotesensingtechnique,thedigitalcamerahasbeenexplored ,andmappingexperimentswiththiskindofdigitalimagesarebeingprocessedastheregularmodeofareophotogrammetry .Ontheotherhand ,thetechniqueofintegrationo…  相似文献   

9.
1 IntroductionItiswellknownthatLandsatTMimagesareproba blythemostimportantremotesensingimagesforgeo logicalpurposes(Chenetal.,1 994) .Usually ,thereare7differentelectromagneticspectrumbandsinTMim ages,amongwhichthreebandscoverthevisiblerangeoftheelectromagnet…  相似文献   

10.
1 IntroductionThecombinedGPS/GLONASSoffersmanyad vantagescomparedwithGPS_onlyuseforposition ingapplicationsespeciallyinareaswherethenum berofvisiblesatellitesislimited .TheinclusionoftheGLONASSsignalscanincreasetheaccuracyofpositioningaswellastheavailab…  相似文献   

11.
1 IntroductionInmodernEarthrotationtheory ,threereferenceframesareusuallyused ,i.e .,thespatial (inertial)frameOξ1 ξ2 ξ3,theterrestrialframeOx1 x2 x3andthenutationframeOx01 x02 x03.Thenutationframedefinesacelestialephemerispole .Themotionofthiscelestialephemerispolew…  相似文献   

12.
1 IntroductionAtpresent,manycommercialdigitalphotogram metricworkstations (DPW )havebeendevelopedandappliedintopracticalproduction .Mostofthemcanautomatically generatedigitalterrainmodel(DTM)anddigitalortho_image (DOM ) ,buttherearenotanysystemswhichcanautoma…  相似文献   

13.
Title :DiscontinuousDeformationAnalysisandRecentCrustalMovementAuthor:WANGZeminSupervisor:LIUJingnanThestudyfocusesonthewait_to_be_resolvedim portantdifficult problem—howtoanalyzeandprocessthenumerousdataofcrustalmovementgainedbyrecentmeasuringmethodsoa…  相似文献   

14.
’96~’97国际测绘会义消息’96▲6月10~14日,在匈牙利布达佩斯召开1996年中欧GIS/LIS年会。(Eequiriesto:NorthAmericanSecretariat,P.O.Box5738,Bethnyds,MD20814,U.S...  相似文献   

15.
1 DataacquisitionandmanagementFrom 1 996to 2 0 0 0 ,theStateBureauofSurvey ingandMapping (SBSM )ofChinafocusedontwomainaspects :establishingChina’snationalspatialdatainfrastructure (CNSDI)and providingbasicinformationproductionforhazardpreventionandreduction .Thepr…  相似文献   

16.
APPROXIMATE REPRESENTATION OF THE p-NORM DISTRIBUTION   总被引:1,自引:0,他引:1  
1 IntroductionInsurveyingdataprocessing ,itisoftensupposedthatobservationalerrorsdistributenormally .Ifob servationscomefromthenormaldistributionalclass ,themethodofleastsquarescangivethemini_ProjectsupportedbytheSustentationPlanforOutstandingTeachersofA…  相似文献   

17.
1 IntroductionMapgeneralizationisoneoftheclassicalcartographicprob lems.Allmaps,aregeneralizedrepresentationsofthereality.Generalizationisnecessarytoimprovethedisplayqualityofsmallscalemaps,allowanalysiswithdifferentgradesofdetail;andreducedatastoragere…  相似文献   

18.
1 IntroductionTherapiddevelopmentoftheeconomyandthesocietyre quiresthesuitablethree_dimentionalrepresentationfordis tricts ,statesandtheearth .Thedigitalelevationmodel (DEM)andgeoreferencedremotesensingimageswith 1_meterresolu tionarethebase .Recently ,themo…  相似文献   

19.
1 IntroductionSpatialrelationsqueryisoneofbasicfunctionsinGIS’sapplication .MostofcurrentcommercialGISscanonlyqueryspatialrelationsforspatialob jectswithoutanyerrororuncertainty ,forexample ,tousecomputation geometryalgorithmtodeter minewhetherapointfalls…  相似文献   

20.
1 TwotypicalGISdatamodels1 .1 TopologicalrelationdatamodelCommercialGISsoftwareintheearlyagemostlyusestheda tamodelbasedon“node—arc—polygon”topologicalrelation,whichiscalledtopologicalrelationdatamodel.Onthebasisoftopologicaldatamodel,somesoftwarestoress…  相似文献   

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