基于OpenGL的交互式有限元后處理可視化程序開發(fā).pdf

1、南京理工大學(xué)碩士學(xué)位論文基于OpenGL的交互式有限元后處理可視化程序開發(fā)姓名：尤志祥申請學(xué)位級別：碩士專業(yè)：導(dǎo)航、制導(dǎo)與控制指導(dǎo)教師：孫宇新20090621AbstractTheVisualizationinscientificreferstoinvolvethecomputergraphics，digitalimageprocessingandothermanykindsofdisciplinedomaintransformsthe

2、scienceandengmeenngcalculationprocessandthecomputedresultintothegraphandimagedemonstratedonthescreenandcarriesonitwithprocessingalternafelyThescientificcomputationaccordingtospecialphysicalmodelresultsinSOlargenumberofda

3、tathatmakesprocessingthesedataefficientlyandpickingupthekeyinformationneededthekeyproblemastotheunderstandingofphysicalmodelBasedontheresearchonthescientificvisualizationtedmology’thispaperappliedtheresultintotheanalysis

4、andprocessingofthefiniteelementdataForthatmostphysicalquantitiesinfiniteelementdataarescalarandsomevectorsCanbedisplayedasscalarthispaperresearchedthevisualizationofscalarfieldFirstlythebasictheoryincomputergraphicsinvol

5、vedinfinitepostprocessingvisualizationisdiscussedinthispaperincludingthemodelbuilding，projectiontransfonnationandkindsofGeometricTransformationwhichprovidethetheorybasisforthefurtherdevelopmentSecondly’forthatcontourline

6、andcloudpictureisusedtodescribetwodimensionalscalardat亂linearinterpolationAlgorithmandtriangularelementfiUalgorithmhavebeenchosenaccordingtothediscussingofthealgorithmsofcontourlineandcloudpictureTwodimensionalfinitedata

7、postprocessingsoftwareisdevelopedbyusingOpenGLandthedrawingresultsisdiscussedwiththatfromTecplotThirdlvonnlebasisofcomputergraphics，differentkindsofeliminationalgorithmshavebeendiscussedastothreedimensionalfinitedata，and

8、finallyZbuffertestingischosenasthealgcIrithmtodevelopthethreedimensionalvisualizationsoftwarebyusingtherenderingfunctioninOpenGLWiththissoftwaredeveloped，thecloudpictureeovenngonthefacesofthreedimensionalmodelisdrawnLast

9、lythesystemoffinitepostprocessingvisualizationisbuiltwithfineUSerinterfaceandfriendlyhumancomputerinteractionSOthatusertaileasilyandconvenientlyusethisvisualizationsystemTheprogramon’scientificvisualizationofpostprocessi