简介：

简介：Analgorithmforcompensatingthevaryingsectioncontourwithintheextentofeachlayerthicknessisproposedtoimprovetherapidprototypingpart’sshapeandsizeprecision.

简介：

简介：产品介绍鑫宝3000B——是一款功能强大的条码标签设计打印软件，其主要功能是进行条码标签设计输出，支持Windows系统下所有普通条码打印机、喷码机、数码印刷机，及各种输入输出设备，支持多种常用的一维、二维码，支持多种数据源格式。

简介：今年暑期的大片一定还在你脑海中，不管是功夫熊猫2还是加勒比海盗4，变形金刚3或哈利波特7——我们都能感受到3D效果带给我们的震撼，貌似如果没有在名字后面加上3D，都不好意思称自己是大片。那么3D是什么，3D将为我们带来什么样的新生活体验呢？

简介：不久前，笔者狠下心花一大笔银子订购了一台戴尔的9100台式机，总算是鸟枪换炮了，但家中原有的P2450台式机和2001年添置的联宝笔记本一直不舍得扔到车库中去，怎说也可以让家人闲来无事上网玩玩。于是，利用一个双休日去电脑公司将D-Link的DI-504宽带路由器请回家，这是一台有线路由器，但是在使用和设置过程中遇到了一些棘手的问题，使笔者这个号称大虾的人物也走了一段弯路，这是怎么一回事呢？

简介：Thispaperpresentsanefficienttechniqueforprocessingof3Dmeshedsurfacesviasphericalwavelets.Morespecifically,aninput3Dmeshisfirstlytransformedintoasphericalvectorsignalbyafastlowdistortionsphericalparameterizationapproachbasedonsymmetryanalysisof3Dmeshes.Thissignalisthensampledonthespherewiththehelpofanadaptivesamplingscheme.Finally,thesampledsignalistransformedintothewaveletdomainaccordingtosphericalwavelettransformwheremany3Dmeshprocessingoperationscanbeimplementedsuchassmoothing,enhancement,compression,andsoon.Ourmaincontributionliesinincorporatingafastlowdistortionsphericalparameterizationapproachandanadaptivesamplingschemeintotheframeforprocessing3Dmeshedsurfacesbysphericalwavelets,whichcanhandlesurfaceswithcomplexshapes.Anumberofexperimentalexamplesdemonstratethatouralgorithmisrobustandefficient.

简介：

简介：Thispaperpresentsadirectmethodtofindtheinternalfaces.Itusesfoursetsofinformation:1getthecoordinatesofeachpointonthe3Dcompositeobjects;2basedonthe3Dcoordinatestocalculatealltheplaneequationoftwoobjects;3calculatealltheintersectinglinesofthetwoobjectsandexcludetheintersectinglineswhicharenotwithinthescopeoftheplane;4findingtheinternalface,theremainingintersectinglinesformedtheplaneistheinternalfaceofthetwoobjects.Weproposedanewalgorithmforfindinginternalfaces.Thisalgorithmcouldbeadaptedtoanyregularcompositeobjects.Thealgorithmworkswellforfindinginternalfaces.

简介：要介绍Voxel3D,先得作个名词解释：Voxel是VolumeElement这两个词的缩写，我们把Voxel叫做“体元”，它就相当于二维图像中的“像素”，是三维空间中的基本小方块。

简介：

简介：Aimingatachievingthehighaccuracy3Dmodelfromsliceimages,anewmodelreconstructionmethodusingsliceimagesisproposed.Wantingtoextracttheoutermostcontoursfromsliceimages,themethodoftheimprovedGVF-Snakemodelwithoptimizedforcefieldandraymethodisemployed.Andthen,the3Dmodelisreconstructedbycontourconnectionusingtheimprovedshortestdiagonalmethodandjudgmentfunctionofcontourfracture.Theresultsshowthattheaccuracyofreconstruction3Dmodelisimproved.

简介：Afamilyofpiecewiserationalquinticinterpolationispresented.Eachinterpolationofthefamily,whichisidentifieduniquelybythevalueofaparameterαi,isofC2continuitywithoutsolvingasystemofconsistencyequationsforthederivativevaluesattheknots,andcanbeexpressedbythebasisfunctions.InterpolantisofO(hr)accuracywhenf(x)?Cr[a,b],andtheerrorshaveonlyasmallfloatingforabigchangeoftheparameterαi,itmeanstheinterpolationisstablefortheparameter.Theinterpolationcanpreservetheshapepropertiesofthegivendata,suchasmonotonicityandconvexity,andaproperchoiceofparameterαiisgiven.

简介：UE-Bézier(unifiedandextendedBézier)basisistheunifiedformofBézier-likebases,includingpolynomialBézierbasis,trigonometricpolynomialandhyperbolicpolynomialBézierbasis.SimilartotheoriginalBézier-likebases,UE-Bézierbasisfunctionsarenotorthogonal.Inthispaper,agroupoforthogonalbasisisconstructedbasedonUE-Bézierbasis.ThetransformationmatricesbetweenUE-Bézierbasisandtheproposedorthogonalbasisarealsosolved.

简介：

简介：外观B5010通体采用镁铝合金材质，色彩依旧是贯用的银灰、外壳表面经过了磨砂处理，手持时有一定摩擦力，不易造成意外滑落。B5010的屏幕扣锁采用了传统的挂钩式，使用时感觉比扣簧式的自动锁夹要习惯得多，打开B5010，其内部主要采用深色调，感觉典雅舒适，很适于移动商务使用。12.1英寸的屏幕与机身十分相配，白色的键盘与四周的灰蓝色形成鲜明对比。

简介：A3D-viewishelpfultoinstantlygraspwhatispresentedinadrawing.Thereexistavarietyofwaystopresentthesamepartwith3D-views.Tofacilitatethechoiceofanoptimumoneamongthem,theworkdividescompositesolidmodelsintothreecategories,soastoconveytheoriginalityofdesignconciselyandaccuratelybyusingtheleast'engineeringlanguage'.

简介：

简介：

简介：