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1北京江达科技发展有限公司CATIAV5培训－逆向设计CATIAV5逆向工程ReverseEngineering北京江达科技发展有限公司BEIJINGJIANGDATECHNOLOGYCO.,LTD.2北京江达科技发展有限公司目录概述CATIA逆向设计模块介绍逆向设计流程3北京江达科技发展有限公司逆向设计流程4北京江达科技发展有限公司流程点云数据处理曲线创建及优化曲面创建及优化曲面详细设计（曲面局部设计、曲面匹配处理）曲面质量分析（与点云误差、曲面表面质量、曲面连接检查）5北京江达科技发展有限公司点云数据处理6北京江达科技发展有限公司目录点云数据测量获取点云数据读入多种文件据格式（Ascii、iges、cgo、Atos、Gom-3D、Hyscan、Kreon、Steinbichler、Stl）参数设置数据优化处理（删除、过滤、激活、数据保护）点云的网格化处理网格数据编辑（合并、对正）点云的显示和分析功能点云数据排列位置调整（坐标定位）基于CATIA装配的参数化点云位置调整方法（参数化调整点云坐标系）练习：1、点云输入；2、网格化处理；3、Dryer；4、点云定位（装配、零件移动）7北京江达科技发展有限公司点云数据输入(1/2)点云输入(1/2):InthisapplicationyouworkfromdigitizedData.ThefirstjobistoimportthisdatainsideCATIA选择文件输入:•YougetastandardWindowsDialogboxthatwillallowyoutoselectone(orseveral)file(s)•ThedisplayedfilesarecomplianttotheFormatfield(*.*todisplayallfilenames).格式:•Youhavethechoiceamongawiderangeofstandardformats.Amorebuttonshowsupaccordingtotheselectedformat,itallowsmoreparameterization•DirectionandDelimitersapplytoscans.Enterthisdatawheneveryouknowit.•MinimalPointQualityisusedtocleanAtosfilefrominvalidpoints.Thequalityvalueofapointliesbetween0and255(lowtohigh).Chooseavaluetoignorepointsbelowthatvalue.•Systemappliestotheoperatingsystem(UnixorWindowsNT)usedtogeneratethebinarydata:selectSameifyouknowyouareusingthesameoperatingsystemastheoneusedtogeneratethebinarydata,Otherfortheotherway,Unknownifyouhavenoindication.•FreeEdgesisusedtocreateornotthescansrepresentingthefreeedgesofacloudofpoints.•Facetsisusedtocreateornotthefacetsoftheimportedcloudofpoints•Iftheextensionofthefileyouhaveselectedisconsistentwiththelistproposed,theFormatfieldisupdatedautomatically.Otherwise,becarefultoenterthecorrectformatinthatfield.•Onceyouhaveperformedanimportoperation,DigitizedShapeEditorproposesthelastenteredfilepathandformatasdefault.Ifyouclickon...,thelastentereddirectoryisproposedasdefault.Ascii:Atos:Stl:Iges:8北京江达科技发展有限公司点云输入(2/2)InthisapplicationyouworkfromdigitizedData.ThefirstjobistoimportthisdatainsideCATIA选项:•Sampling：allowstoimportacertainpercentageoftheDigitizeddata,becareful,thiswillbedonesequentiallyeveryxpointswillbekept.•ScaleFactor：thescanoperationisveryoftenperformedonascaledmodel,youmaywanttoworkonrealsizemodel,applythegivenscalefactor•FileUnit：yourCATIAsessionissetupforagivenunit.Thefileyouimportcomesfromtheoutsideworldandmaybedigitizedinanotherunit.Setuptheproperunitbeforeimportingthefile预览:•Replace：willreplacethecurrentcloudofpointsbythisnewone.•Update：Willdisplaythecloudofpointsalongwithitsboundingbox.Thenusethemanipulatorsofthisboxtoclipthepartofthecloudyouimport•TheFileunitoptionisnotrelevanttotheSteinbichlerformat,northeSamplingpercentagetotheStlformat.•Anelementiscreatedinthespecificationtree,underthenameCloudImport.x.•UndoandRedoareavailable.•DigitizedShapeEditormemorizesthedataofthelastimportedfileandproposesthematthenextimportaction.clickon...,thelastentereddirectoryisproposedasdefault.•IfyouimportseveralCloudsofpointsinthesameaction,theresultwillbeasingleCloudofPointentity统计:•Thischeckboxwillallowyoutogetinformationinthestatisticswindow(numberofpoints,dimensions…)Apply:whenyouaresatisfiedwithyourimportparameters,useApplythenOKtocreatetheCloudImportentity点云数据输入(2/2)9北京江达科技发展有限公司ImportingaSetofFilesThefilestoimportmust:havethesameformatbelocatedunderthesamedirectory10北京江达科技发展有限公司数据处理－RemovePoints去除:ThisactionisusedtoremovepointsfromtheCloudofPointsSelectedPart,itcanbe:•InsideTrap:•OutsideTrap:选择:•Pick:willallowselectionbypickingelementsonscreen.TheelementtypeisfilteredbytheoptionsfromLevel•Trap:Willallowtheselectionthroughacontourtrapseeexplanationontraptype.Thetrapisdrawninaplanebuthasadepth.ThenyoumaychangethetrapbythemanipulatorsoftheTrap.•Thedeletedpointsarethosethatappearinredduringtheselection•Bydefault,asshownabove,thetrapisdisplayedintheviewplane.Itisthusa2Dtrap.•Youcanrotatethemodeltodisplayitasa3Dtrap.•Youcanmodifytheshapeofthetrapusingthegreenarrowsthatappearontheedgesofthetrap.•删除了点就不能再恢复!ActivateallandSwapapplyonlytothecurrentremovalaction.Theycannotbeusedtorecallremovedpoints,onceyouhaveclickedOKGlobal:•SelectallwillselectthewholeCloudofpoints•Swapwillswitchtheselectionbythe‘notselected’elementsLevel:IncoordinationwithPickcanbeset,dependingto:PointScan/GridCellCloudTriangle框选类型:•ItcanbedefinedbyaRectangularorPolygonalcontourorbyasplineYoucancreateasmanyareasasyouwishbyclickingApplyanddrawinganothertrap,untilyouclickOKtovalidateandexittheaction.11北京江达科技发展有限公司过滤:UsedtodecreasethenumberofpointsinaCloudofPointsHomogeneous:enterthevalueoftheSphereradius,usedtofilterthepoints.Thefilteringsphereisvisualizedbyagreensphere.Youcanchangeitspositionbyasimplemouseclickatadesiredlocation•EachtimeyouclickApply,thecloudofpointsandthestatisticsareupdated.Onceyouaresatisfiedwiththeresult,clickOKtoconfirmandexittheaction•点被隐藏了，不是被删除.•只能对最后一步过滤能Undo.•LeavingtheactionwithCancelrestoresthecloudasitwasbeforestartingthefilteringaction.•Filteringwitharadiusequalto0cancelsALLfilteringactionsperformedonthecloudofpoints:•不能过滤点云tessellated或polygon.•Whenyoufilterscansorgrids,youactuallyfilterpoints:filteredpointsareh