基于角點網(wǎng)格剖分的三維地質(zhì)建模的研究與實現(xiàn).pdf

1、西安科技大學碩士學位論文基于角點網(wǎng)格剖分的三維地質(zhì)建模的研究與實現(xiàn)姓名：蘇丹丹申請學位級別：碩士專業(yè)：計算機應(yīng)用技術(shù)指導教師：龍熙華@Subject:ResearchImplementationofThreedimensionalGeologicalModelingSystemBasedonCnerpointGridsSpecialty:ComputerApplicationTechnologyName:SuDan(Signature)

2、_Instruct:LongXihua(Signature)_ABSTRACTAsabranchofGeoVisualization3Dgeologicalmodelingisanewdomain.Throughthegeologicalboundaryacteristicdataitcansimulatethesurfacemphologicalacterstheinternalattributesofthegeologicbodyb

3、yusingcomputerreproducethetruegeologicbodyondrawingmodetomakepeopleunderstthestructureofgeologicalspacemeintuitionally.Therefeithasagreatsignificanceofthestudiesonthecrelationalgithmabout3Dgeologicalmodeling.3Dgeological

4、structuremodelingbasedonCnerpointgridsgenerationisstudiedthroughhizonmodelingfaultsmodelingstratigraphicsequencemodeling.Intermsofalgithmtheemphasisdifficultyduringtheprocessofestablishingmodelsisanalysedthecrespondingso

5、lutionsareproposedtoestablishthegeologicalmodels.FirstlythreedatastructureoftheDelaunaytriangulationalgithmincludingpointsedgestrianglesaredesignedtoachievetheDelaunaytriangulationofthemassdatarapidlythentracescontourfil

6、lscolsintoisogramstoachievetheestablishmentofhizonmodel.Secondlyaccdingtofaultdataofstickstypesthemethodofweightedaverageisusedtosetupfaultmodel.Agenerationalgithmofgriddingconstrainedbyfaultsisgivenonstudyingthecnerpoin

7、tgridsgenerationtechnologythe3Dspaceskeletonmodelisbuilt.Then3Dstratummodelisachievedthroughhizons.Atthesametimeonthebasisofthemodelingabovetheprinciplesofstratigraphicsequencefollowingthewayofstratigraphicsequencethestr

8、atumsaresubdividedtogetsequencemodel.Finallyonthebasisofstructuremodegeologicalpropertiesmodelisbuiltbyusingtheinversedistancetoapowermethodtoestimatethevalueofthegridnodecrosssectiondisplayfromanyangleisrealized.A3Dgeol