標量場可視化及其在海洋水團分析中的應(yīng)用.pdf

1、青島海洋大學碩士學位論文標量場可視化及其在海洋水團分析中的應(yīng)用姓名：耿震申請學位級別：碩士專業(yè)：計算機應(yīng)用指導(dǎo)教師：楊冠杰2000.6.1壹墨塑鱟查蘭堡主堂垡壘壅一————AbstractScientificvisualizafioniSanewfieldincomputersciencethatwasbroughtforwardanddevelopedrapidlyinthelate80’SNowithasbeenwidelyused

2、medicine，geologicalsurveymeteorologicalreport，molecularbiologycomputationalfluiddynamicsandfiniteelementanalysis，etcOceanwatermassanalysishasconsistentlybeenanimportantresearchsubjectinphysicaloceanographyButexistingtech

3、niquesforwatermassanalysishavetheproblemthattheanalysisresultsaresubjectiveandexperimentalThispapertriestointroducescientificvisualizationintophysicaloceanographySOastofindanewsolutionforwatermassanalysisthatsomeimproved

4、resultsCanbegetAtfirst，weintroducetwomodelingmethodsfortheoceanicinvestigationdata(scatteredvolumetricdata)：multiquadraticmethodandlocalvolumesplinemethodTheformerisfitformoderateorsmallsizeddatasetsandthelatterforlarged

5、atasetsThen，weusesurfacerenderingtoanalyzeoceantemperatureandsalinityfields，andUSedirectvolumerenderingtechnologyforoceanwatermassanalysisTheworkaboutsurfacerenderingincludes：1Displayingdistributionofgivenparametervalues

6、bytheisosurfacetechnology(MarchingCubeAlgorithm)；2DisplayingoveralldistributionoftheseaareabythecolorcodingtechnologyIndirectvolumerenderingweuseraycastingtechnologyforoceanwatermassanalysisAtlast，acasestudyhasbeenpresen

7、ted，whichshowsthepotentialtoapplyscientificvisualizationtowatermassanalysisaswellasotherfieldsofphysicaloceanographyKeyWords：scientificvisualization，scatteredvolumetricdata，surfacerendering，directvolumerendering，oceanogr