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1、Subject:DesignandRealizationofCityThree-dimensionalGeographicInformationSystemBasedonSkylineSpecialty:GeodesyandSurveyEngineeringName:LuoShuaiwei(Signature)Instructor:MengLumin(Signature)ABSTRACTCityisthecenterofsocio-economic,80%ofGrossDomesticProduct(GDP)isconcentratedincity，Chinaputforwardtheini
2、tiativeofruralurbanizationinrecentyears,urbanizationhasbecomeabigtrendofsocialdevelopment,thecity'spositionhasbecomeincreasinglyprominentinoursociety.Todaythecityisnotonlyahumangatheringplacebutanorganicwhole,sowehavetousetechnologytochangethecity,inthiscase,thethree-dimensionalgeographicinformatio
3、nsystemcameintobeingastheMeansofrealizationofthedigitalcities.Inrecentyears,thedigitalcityisbecomingthefocusofattention,whilethecity'sthree-dimensionalgeographicinformationsystemsasanimportantcomponentoftheDigitalCity,hasbecomethefocusoftheworkofthesurveyingandmapping.IbuiltChaoyangNewDistrictThree
4、-dimensionalgeographicinformationsystemsfromthetheoryoftheDigitalCity,thissystemcanprovideuserswithdifferentusesofthree-dimensionalgeographicinformationservices,andprovideurbanmanagementdepartmentwiththeurbandevelopmentinthisstageasareference,andprovidedecision-makingforthecityplanningandmanagement
5、department;IbuiltChaoyangNewDistrictgeospatialdatabase,userscanquerytheattributedataofeachunitconveniently;Italsocanprovideuserswithcomprehensivegeographicinformationservices,includingbrowsingtheurbanlandscape,variousthree-dimensionalanalysis,querytheinformationyouneed.InthispaperIdeterminethetechn
6、ologyandmethodsofgeographicinformationsystems,fromtheperspectiveofbuildingthecity'sthree-dimensionalGeographicInformationSystemandinaccordancewiththeprinciplesofgeographicinformationsystemsdevelopment,basedonaerialphotos、digitalelevationmodelsandreliefmap,IestablishtheChaoyangNewDistrictThree-dimen
7、sionalscene,inthispaperIuseC#.NETprogramminglanguageandthedevelopmentplatformthree-dimensionalgeographiccomponentTerraDeveloperskylinesoftwareprovides,thesystemismainlytoachievethree-dimensionalbasicoperati
