简介：演讲为从在WGGGI的成员之中散布的问询表获得的乔治国王岛在存在测地学的数据上包含信息。

简介：有EDM的GPS和高精确的距离测量的联合网络的一个新解决方案被建议。同时，它“s不妥当的仅仅使用的GPS网络与甩开大小。三个计划：陆上的网络，GPS网络和联合网络被讨论因为鉴于精确，Xiangjiaba的平面控制网设计建水坝，可靠性，详细协调并且支付。

简介：Theconceptsof“confiningstructure”andstructurelightareilluminatedinthispaper.Alasertheodolitewiththreefreedomsofrotation,whichisaimedat“confiningstructure”,isdeveloped.Variousscanningmodesandtheirmathematicalmodelsbasedonlasertheodolitewiththreefreedomsofrotationarediscussed.Accordingtothefeaturesofahugeobject,,thestructurelightengineeringsurveyingbasedonlasertheodolitewiththreefreedomsofrotationisdeterminedasthemainmethodinanactualapplication.Theobservationoffoursoundconcretepostsandforcedcenteringplates.Subsequently,itistransformedintothehugeobjectcoordinatesystem.Thescanningmodewithplumbplaneisselectedasthemainmodeinthewholework.Andotherassistantmethods,suchascloserangephotogrammetryandthemethodofusingreflectionsheet,areappliedtotheworkof“scanningdeadangle”.Atlast,asurveyingaccuracyestimationofthismethodisdoneandasurveyingaccuracytestisfinished.Itcanbeconcludedthatthestructurelightengineeringsurveyingbasedonlasertheodolitewiththreefreedomsofrotationisconsideredtobeaneffectiveandappliedmethod,andhasmanysuperioritytosomeothersurveyingmethodsintheworkofsurveying“confiningstructure”.

简介：EngineeringexcavationGIS(E2GIS)isareal-3DGISservingforgeosciencesrelatedtogeo-engineering,civilengineeringandminingengineeringbasedongeneralizedtri-prism(GTP)model.AstwoinstancesofGTPmodel,G-GTPisusedforthereal-3Dmodelingofsubsurfacegeologicalbodies,andE-GTPisusedforthereal-3Dmodelingofsubsurfaceengineeringexcavations.InthelightofthediscussionsonthefeaturesandfunctionsofE2GIS,themodelingprinciplesofG-GTPandE-GTPareintroduced.Thetwomodelscoupletogetherseamlesslytoformanintegralmodelforsubsurfacespatialobjectsincludingbothgeologicalbodiesandexcavations.Anobject-orientedintegralreal-3Ddatamodelandintegralspatialtopologicalrelationsarediscussed.

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。

简介：排水量操作员是一重要、静止在地图归纳的一个热话题。在归纳产品，符号一定不含糊、容易察觉、容易地听说，它在特征之中做空格竞争在地图的进程的一个重要障碍反对排水量。通过繁殖过程，在目标之间的空间冲突可以被散布，更多的目标可以漂流进它。为了维持符号，在符号的对象，一些不重要的符号或部分之间的平衡和空间关系应该根据视觉图形的分辨率阀值在限制下面被弄歪在地图特征之中弄明白空格竞争。包括位置，易读性和特征的三限制为符号平衡和空间关系的维护是重要的，它在这篇论文被讨论。骨骼被介绍表示区域目标考虑特征，一个区域目标能在被分开到在构造根据他们的重要性分开教主的联盟者。然后，有限元素方法被用于地图目标的排水量和失真，为有限元素方法的参数的策略在被讨论。

简介：Spatialdata,includinggeometricaldata,attributedata,imagedataandDEMdata,arehugeinvolumeandrelationsamongthemarecomplex.HowtoeffectivelyorganizeandmanagethosedataisanimportantprobleminGIS.SeveralproblemsaboutspacedataorganizationandmanagementinGeoStarwhichisabasicGISsoftwaremadeinChinaarediscussedinthispaper.Thepaperemphasizesonobjectmodelofspatialvector,dataorganization,datamanagementandhowtorealizethegoal,andthelike.

简介：Accordingtothequalitycontrolneedsoffillingconstructionofthefacerockfilldam,bymeansoftheglobalsatellitepositioningtechnology,thewirelessdatacommunicationtechnology,thecomputertechnologyandthedataprocessingandanalysistechnology,andintegratingwiththerollercompactionmachine,theGPSreal-timesupervisorysystemisdevelopedinthispaper.Itcanbeusedtoreal-timelysupervisetheconstructionqualityoftherollercompactionforfillingengineering.ThecompositionandappliedcharacteristicsofGPSsystem,andthekeytechniqueproblemandsolutionofthedesignarediscussed.TheheightaccuracyofGPSsystemisanalyzedandthepreliminaryapplicationisintroduced.

简介：Coastallowlandshavelargeareasofhazardimpactandrelativelylowcapacityofpreventiontothewaterrelatedhazards,whichhavebeenindicatedbythewide-spreadfloodhazards,highpercentagesoflandwithhighfloodvulnerability.Increasingpopulationpressureandtheshiftofresourcesexploitationfromlandtoseawillforcemoreandmorecoastallowlandstobedevelopedinthefuture,furtherenhancingthedangerofwater-relatedhazards.Inthispaper,thecoastallowlandsinthenorthernJiangsuprovince,China,wereselectedasacasestudy.TheInterpretationStructuralModel(ISM)wasemployedtoanalyzethedirectandindirectimpactsamongtheelementswithinthesystem,andthereby,toidentifythecausalelements,middlelinkages,theirexpressions,andrelations.

简介：Aregionalgroundwatermanagementsystemhasbeenelaborated,integratingRelationalDatabaseManagementSystem(RDBMS)andvariouswebservices.Itconsistsofwebgeospatialapplicationso-calledHydrIS(HydrogeologicalInformationSystem)basedonOpenSourcecomponentsandtechnologies,leadingtoafeasibleandlow-costsolution.Therefore,HydrISpermitsdeliveryofdatafromanumberofheterogeneoussourcestostandardssupportedbytheOpenGeospatialConsortium(OGC).TheprotocolsusedforexchangingdataarealsoderivedfromOGCstandards,i.e.,WMS(WebMappingService),WFS(WebFeatureService),andWCS(WebCoverageService).Finally,ageoportalwasdeveloped,whichconsistsofclient-applicationsthatcommunicatewithdifferentWebServices(WMS,WCS,anAdWprFoSto)ttyhpreoufogrhwHeTbT-Pb-aresqeudeGstISs.applicationwasdesignedusingthedeegreeFrameworktoprovidesystematicinterfacesandfunctions.Thissystemwasdevelopedtodemonstratethevalueofmakinghydrogeologicaldatamorewidelyaccessiblethroughclient/serverarchitecture.Thisexperienceandknowledgealreadygainedinthisprojectwillbeasourcefortechnologytransferandpolicydecisions.Otherwise,thiswillenableusergroupstoimprovethemanagementoftheirground-waterresourcesandcontributetoenhanceddecisionsupportcapabilities.

简介：AnOracle8i-basedap-proachisproposedtomanagetheinte-grateddatabasesoflargeCyberCity.Thisapproachconsistsofthreeisdesignedtoacceleratespatialretrieving,inwhichtheboundingboxesoflocalregionshavenointersectionandallleafnodesoftheR+-tree(geome-tryrecords)havenorepetition;rithmsareadoptedtocompressthedigitalelevationmodels,3Dvectormodelsandimages,suchasLZ77losslesscompressionalgorithmforcompressionofvectordataandJPEGcompressionalgorithmsfortextureim-Oracle8idatabase,aCyberCityGISspatialdatabaseengine(SDE)isdesigned.OnthebasisofthisSDEpro-totypeacasestudyisdone.

简介：Thispaperintroducestheprocessofmaking3DvectorscenographofanancientbuildingwithlargequantitiesofdatawiththeaidofAutoCAD,whichdisplaystheeffectofscenerydrawings.ThevitalskillsandtechniqueinvolvedareillustratedthroughtheexampleofPagodaofThousandsofBuddhainChiLinNunneryinHongKong.Thisconstructionwasstartedin1996andfinishedin1999withtheconcretestructureinternalandwoodexternal,imitatingthestyleofbuildingsinTangDynasty.Thus,3Dvectorscenographbecomeavailabletousers.

简介：Thispaperpresentsacomponentobjectmodel(COM)basedframeworkformanaging,analyzingandvisualizingmassivemulti-scaledigitalelevationmodels(DEMs).Theframeworkconsistsofadatamanagementcomponent(DMC),whichisbasedonRDBMS/ORDBMS,adataanalysiscomponent(DAC)andadatarendercomponent(DRC).DMCcanmanagemassivemulti-scaledataexpressedatvariousreferenceframeswithinapyramiddatabaseandcansupportfastaccesstodataatvariableresolution.DACintegratesmanyusefulappliedanalyticfunctionswhoseresuitscanbeoverlaidwiththe3DscenerenderedbyDRC.DRCprovidesviewdependentdatapagingwiththesupportoftheunderlyingDMCandorganizesthepotentialvisibledataatdifferentlevelsintorendering.