简介：

简介：介绍了GlobalMapper中投影/坐标系统的定义方法,以MicroStationDGN格式数字地图坐标系统转换为例,给出了利用GlobalMapper实现数字地图坐标系统转换的方法和步骤,并对转换结果进行了分析。

简介：计算机、无线网络、定位技术和数据库技术的快速发展,为移动GIS技术在地质灾害信息野外采集创造了有利条件。从传统的地质灾害信息采集中存在问题出发,介绍了移动地理信息系统的组成和移动GIS在地灾野外数据采集中的应用优势,分析了地质灾害信息采集系统的需求,对系统架构、终端设备、通信方式、功能模块进行了设计,并提出了系统实现的方式。

简介：阐述了移动GIS的基本概念、特点及其组成;基于ArcGISRuntimeSDKforAndroid构建了城市地下管线的移动巡查系统,并重点介绍了系统主要功能设计和实现过程。

简介：介绍了一种利用手机应用程序的实时性和web应用程序的广泛性、便利性开发系统程序，共同提供服务的拼车系统该系统以web小服务为基础，实现了拼车数据在web端和手机端的实时共享，使拼车更加便捷，提倡了低碳、环保、节能的生活理念

简介：Thispaperintroducesthemostadvancedformofelectronicchartdisplayandinformationsystems(ECDIS)whichcomplieswiththePerformanceStandardsforECDISestablishedbytheInternationalMaritimeOrganization(IMO)andtheInternationalHydrographicOrganization(IHO).ItalsodescribesthekeyfeaturesandtheimportantfunctionsofECDIS.ThenthefuturedevelopmentofECDISinmarineisdiscussed.

简介：依托移动互联网技术、智能移动终端技术和移动GIS开发技术,结合RS、GIS和GPS等先进技术,设计了可实时采集、操作简便、性能高效的时空信息调查智能移动终端系统,为智慧城市、地理空间信息数据库、地理信息公共服务平台建设提供准确及时的时空信息支撑.

简介：ThebasicprincipleofintervalarithmeticandthebasicalgorithmoftheintervalNewtonmethodsareintroduced.Theprototypealgorithmcannotfindanyzeroinanintervalthathaszerosometimes,thatis,itisinstable.Sotheprototyperelaxationprocedureisimprovedinthispaper.Additionally,animmediatetestoftheexistenceofasolutionfollowingbranch-and-boundisproposed,whichavoidsunwantedcomputationsinthoseintervalsthathavenosolution.ThenumericalresultsdemonstratthattheimprovedintervalNewtonmethodissuperiortoprototypealgorithmintermsofsolutionquality,stabilityandconvergentspeed.

简介：介绍了轻便型移动测量系统的构成及工作原理,提出利用该系统及相关软件进行外业采集和内业点云处理及建筑物立面图件绘制的技术方案,通过工程实例和精度比对验证了轻便型移动测量系统运用在立面数据获取的可行性。

简介：ThispaperdiscussestheurbanlandgradingsystembasedontheselfdevelopedGISsoftware.Thesystemestablishesthesystemtemplate,therelevantdatastructureandtheempiricalformulasoftheaffectingfactorandeconomicdataoflanduse.Besides,thesystemcancalculatetheserviceradius,sumandlandgradeautomatically.Furthermore,itcandostatisticsandqueryonvariouslandinformationandshowtheresultoflandgradingwithspatialandattributedata.ThispaperillustratestheresultbygivinganexampleofthecommerciallandgradingoftheurbanareaofWuhanCitybytheurbanlandgradingsystem.

简介：Thispaperdescribesthestructure,geometricmodelandgeometriccalibrationofPhotogrammetronI-thefirsttypeofphotogrammetronwhichisdesignedtobeacoherentstereophotogrammetricsysteminwhichtwocamerasaremountedonaphysicalbasebutdrivenbyanintelligentagentarchitecture.Thesystemcalibrationisdividedintotwoparts:thein-labcalibrationdeterminesthefixedparametersinadvanceofsystemoperation,andthein-situcalibrationkeepstrackingthefreeparametersinreal-timeduringthesystemoperation.Inavideosurveillanceset-up,preparedcontrolpointsaretrackedinstereoimagesequences,sothatthefreeparametersofthesystemcanbecontinuouslyupdatedthroughiterativebundleadjustmentandKalmanfiltering.

简介：GeographicalInformationSystem(GIS)iswidelyusedinmanyfields.Withtherapiddevelopmentofcomputernetwork,GISuserscaremoreaboutdatasharinginnetworks.Intraditionalrelationaldatabase,dataconsistencywascontrolledbyconsistencycontrolmechanismwhenadataobjectislockedinasharingmode,othertransactionscanonlyreadit,butcannotupdateit.Thisisappropriateintraditionalrelationaldatabasesthatstoreattributedataandmainlydealwithshorttransactions.Inspatialdatabases,becauseofvastamountofdataandcomplextopologicalrelations,longtransactionaremetfrequently.Ifthetraditionalconsistencycontrolmethodhasbeenusedyet,thesystem'sconcurrencywillbebadlyinfluenced.SotherecomemanynewrequirementsfortheconsistencycontrolinthefieldofGIS.Therearemanyaspectsofdataconsistencyproblemsinspatial　databases,suchastheinconsistencybetweenattributeandgeometrydata;theinconsistencyoftopologicalrelationsaftergeometryobjectshasbeenmodified.Inthispaper,othertwocasesofdataconsistencyarediscussedinMulti_userGeographicalInformationSystem.　　InGIS,therearemanyformsofdata,suchasgeometrydata,attribute,imagedata,andDEMdata.Inthispaper,weonlydiscussspatialgeometrydata.

简介：Onthebasisofpreviouswork,thispaperdesignsanintelligentagentbasedonvirtualgeographicenvironment(VGE)systemthatischaracterizedbyhugedata,rapidcomputation,multi-user,multi-threadandintelligenceandissueschallengestotraditionalGISmodelsandalgorithms.Thenewadvancesinsoftwareandhardwaretechnologylayareliablebasisforsystemdesign,developmentandapplication.

简介：AtpresentE-commercesystemtendstobecomemorecomplex,andtraditionalsystemdesigningmethodscannotfufiltheneedofE-commercesystem,thusrequiringaneffectivemethodassolution.Withthisconcern,thispaperintroducessomeconceptsofcomponenttechnology,thenbringsforwardthenewconnotationandbasicfeaturesofcomponenttechnologythroughtheanalysisofitstechnologicalcharacter.ThispaperfinallydiscussestheapplicationofcomponenttechnologytoE-commercesystem.

简介：［1］NyergesTL.Cognitiveaspectsofhuman-computerinteractionforgeographicinformationsystems.KluwerAcademicPublishers,1995.287～310［2］ChurcherN,ChurcherC.GroupARC——acollaborativeapproachtoGIS.In:Proceedingsofthe8thColloquiumoftheSpatialInformationResearchCentre.UniversityofOtago,1996.156～163［3］ObermeyerNJ,PintoJK.Theroleofgeographicinformationwithinanorganization'sMIS.In:ManagingGISs.TheGuilfordPress,1994.35～51［4］SpencerB.Spatialdatawarehousing.In:ProceedingsofGISAM/FMASLA'97&Geoinformatics'97onMappingtheFutureofAsia-Pacific.China:Taipei.1997.545～553［5］ChenJ,JiangJ,YanR,etal.Integratingandmanagingheterogeneousgeographicinformationforurbanplanning&landadministration.ActaGeodaeticaetCartographicaSinica,1998,27(2):153～160［6］WuR.Towardsanenterprise-wideGISsystem:acasestudy.In:ProceedingsofGISAM/FMASIA'97&Geoinformatics'97onMappingtheFutureofAsia-Pa-cific.China:Taipei,1997.657～671［7］ChenJ,JiangJ,JinS,etal.designingacollaborativeworksystembyintegratingGISwithOA.JournalofRemoteSensing,1998,2(3):59～64［8］GoodmanJN.Albertalandrelatedinformationsystem-afederateddatabasecasestudy.In:ProceedingsofURISA,1994［9］IgrasE.Aframeworkforqueryprocessinginafederateddatabasesystem:acasestudy.In:ProceedingsofURISA,1994［10］ShethAP.Federateddatabasesystemsformappingdistributed,heterogeneous,andautonomousdatabases.ACMComputingSurveys,1990,22(3):183～235［11］NewtonPW,GippsPG,CrawfordJR.Virtualplanninganddesign:anemegingparadigm.In:Proceedingsof4thinternationalconferenceoncomputersinurbanplanningandurbanmanagement.Australia:Melbourne,1995.27～38［12］BennettWS.Visualizingsoftware—agraphicalnotationforanalysis,design,anddiscussion.NewYork:MarcelDekker,Inc.,1992［13］TeisseireM,PonceletP,Cicchetti

简介：Thispaperpresentsadatafusionmethodindistributedmulti-sensorsystemincludingGPSandINSsensors'dataprocessing.First,aresidualχ2-teststrategywiththecorrespondingalgorithmisdesigned.Thenacoefficientmatricescalculationmethodoftheinformationsharingprincipleisderived.Finally,thefederatedKalmanfilterisusedtocombinetheseindependent,parallel,real-timedata.Apseudolite(PL)simulationexampleisgiven.

简介：

简介：现在，空间数据在因特网上被卖并且播送的越来越多的digitalized。因此，在那里产生关于数字数据的版权保护的一个重要问题。解决这个问题，这份报纸设计了并且实现一种空间数据watermarking服务(SDWS)能为数据办理提供一个安全框架并且经由因特网转并且同时保护版权主人和消费者的权利的系统。

简介：土地信息系统的不停的变化问题能通过重新分解和设计模式被解决。为了在开发再使用软件的土地信息系统支持设计模式和重新分解的方法的实现，设计，适用重新分解在土地信息系统开发的模式被讨论的到抽象工厂和装饰者设计的方法。

简介：大留下来电缆线的桥的构造时期长，并且结构变丑是复杂的。任何错误将潜在地在建设期间影响伸臂排列和内部力量。为了在建设期间并且确切保证安全，决定伸臂排列，当上层建筑的构造开始时，动态变丑监视立即被需要。这篇论文瞄准变丑在Sutong桥构造期间监视的要求，并且基于监视系统的遥远的即时动态几何变丑介绍实现和GPS和georobot的观察计划，然后研究处理方法的数据并且枚举一些应用程序成就。长期的操作在Sutong桥构造期间显示系统稳定地运行，结果是可靠的。