基于GIS的水流信息动态可视化研究

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1、基于GIS的水流信息动态可视化研究GIS—basedResearchonDynamicVisualizationofWaterFlowY870119研导师及职称三造教援2006年5月GIS-basedResearchORDynamicVisualizationofWaterFlowAbstractSpace，Propertyandtimearethreebasicelementsofgeographyinformation．TraditionalOISpaysattentiontoinformation

2、aboutspaceandproperty，SOitisastaticGIS．TemporalOISaddstimeinfomaationintoGIS，studiestherulesofchangesfollowingtimetorepresentgeographicphenomena．Dynamicvisualizationofspatio-temporalbasedontemporalGISisveryimportantfordescribinggeographicinformationanden

3、hancingthelevelofdecisionsupports．Thisthesisappliesthetheoryofspatio—temporaldatavisualizationinwaterresourcesinformationsystemandrealizesdynamicvisualizationofwaterflow，whichsystemoffersefficientdecisionsupportsforthedeploymentofwateresourcesinSouth-to-

4、NorthwaterTransferProjectofShandongprovince．ThethesisstudiesthebasictheoriesoftemporalGISandclassifiesdynamicchangesofspatio-temporalintothreetypes：changesbasedonproperty，changesbasedonpositionandintegratedchanges．Andthethesiscomparesseveralspatio—tempor

5、aldatamodel，analyzesthecharactersofwateflows’data．Allthesestudiesprovidethefundationofdesigningandprogrammingofdynamicvisualization．Basedonaboveresearches，thethesisdesignsthesystemofdynamicvisualizationofwaterflowinformationbasedonArcObjeetsplatform，real

6、izesdynamicvisualizationofchangesaboutwatequalityanddynamicsimulationofprocessofwateflow．keywords：DynamicVisualization，TemporalGIS，Spatio-TemporalDatamodel，ArcGISII插图清单图1．1地理信息系统构成示意图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1图3．1时间片快照模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．13图3．

7、2基态修正模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．13图3．3几种改进的基态修正方式的对比⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．17图3．4动态多基态多级差文件修正模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．18图4．1ArcObjects基本结构⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21图4．2课题研究区域地形图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．22图43系统功能框架图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．23图4．4调整后的中心线图层⋯

8、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．24图4．5水流关键节点的点图层⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．25图4．6水质状态的颜色设置示意图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．27图4．7时刻1水质状态示意图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯29图4．8时刻2水质状态示意图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．29图4．9时刻3水质状态示意图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．