简介：Inthispaper,afastalgorithmforpolygonoperationsisintroduced.Theintersectionvalidationtestingmethodisdescribed.

简介：ＡＮＥＷＣＯＮＶＥＸＨＵＬＬＡＬＧＯＲＩＴＨＭＦＯＲＡＮＹＰＯＬＹＧＯＮＨｕＺｈａｎｑｉＬｉＹｕｐｅｎｇＷａｎｇＪｕｎＱｉａｏＬｅｉＡｂｓｔｒａｃｔＡｎｅｗａｌｇｏｒｉｔｈｍｆｏｒｆｉｎｄｉｎｇｃｏｎｖｅｘｈｕｌｏｆａｐｏｌｙｇｏｎｉｓｐｒｏｐｏｓｅ...

简介：Inland-usedatageneralization,theremovalofinsignificantparcelwithsmallsizeisthemostfrequentlyusedoperator.Traditionallyforthegeneralizationmethod,thesmallparcelisassignedcompletelytooneofitsneighbors.Thisstudytriestoimprovethegeneralizationbyseparatingtheinsignificantparcelintopartsaroundtheweightedskeletonandassigningthesepartstodifferentneighbors.Thedistributionoftheweightedskeletondependsonthecompatibilitybetweentheremovedobjectanditsneighbor,whichconsidersnotonlytopologicalrelationshipbutalsodistancerelationshipandsemanticsimilarity.ThisprocessisbasedontheDelaunaytriangulationmodel.Thispapergivesthedetailedgeometricalgorithmsforthisoperation.

简介：Inthiswork,weinvestigatethemethodstoimprovetheperformanceofthesweptsourceat1.0μmbasedonapolygonscanner,includingin-cavityparametersandboosterstructuresoutofthecavity.Thethreein-cavityparametersarethecavitylength,therotatingspeedofthepolygonscanner,andthein-cavityenergy.Withthedecreaseofcavitylength,thespectrumbandwidthbecomeswiderandthedutycyclebecomeshigher.Withtheincreaseoftherotatingspeedofthepolygon,thespectrumbandwidthbecomesnarrower,andthedutycyclebecomeslowerbuttherepetitionratebecomeshigher.Withmoreenergyin-cavity,thespectrumbandwidthbecomeswiderandthedutycyclebecomeshigher.Theboosterstructuresincludethebufferedstructure,secondaryamplifier,anddual-semiconductoropticalamplifierconfiguration,whichareusedtoincreasethesweepfrequencyto86kHz,theoutputpowerto18mW,andthetuningbandwidthto131nm,respectively.

简介：连贯的多角形的粒子的二维的分离元素模型(DEM)模拟被开发了估计点来源颤动的利益在楔形的hoppers导致流动。使用的particleparticle相互作用模型基于一个多接触原则。没有颤动，学习的第一部分在严肃下面调查了粒子分泌物决定批评的孔尺寸(Bc)就作为粒子形状的功能支撑流动。多角形形状的粒子比圆形的粒子需要一个更大的孔，这被显示出。当粒子顶点的数字增加，Bc减少，这也被显示出当粒子顶点的数字增加。圆形的粒子的增加以一种线性方式支持多角形的流动。学习的第二部分证明那颤动能提高流动，有效地减少Bc。模型表明了震荡器地点(高度)的重要性，与在提高的以前的连续统模型结果，和颤动振幅一致流动。

简介：ＡＣＯＵＮＴＥＲ－ＥＸＡＭＰＬＥＴＯＡＦＡＳＴＡＬＧＯＲＩＴＨＭＦＯＲＦＩＮＤＩＮＧＴＨＥＣＯＮＶＥＸＨＵＬＬＯＦＡＳＩＭＰＬＥＰＯＬＹＧＯＮＧｏｄｆｒｉｅｄＴｏｕｓｓａｉｎｔＡＣＯＵＮＴＥＲ－ＥＸＡＭＰＬＥＴＯＡＦＡＳＴＡＬＧＯＲＩＴＨＭＦＯＲＦＩ...

简介：Inthispaper,anewmethodoftopologicalcleanupforquadrilateralmeshispresented.Themethodfirstselectsapatchofmesharoundanirregularnode.Itthenseeksthebestconnectionoftheselectedpatchaccordingtoitsirregularvalenceusinganewtopologicaloperation:smallpolygonreconnection(SPR).Byreplacingtheoriginalpatchwithanoptimalonethathaslessirregularvalence,meshqualitycanbeimproved.Threeapplicationsbasedontheproposedapproachareenumerated:(1)improvingthequalityofaquadrilateralmesh,(2)convertingatriangularmeshtoaquadrilateralone,and(3)adaptingatrianglegeneratortoaquadrilateralone.Thepresentedmethodishighlyeffectiveinallthreeapplications.

简介：Anewmethodforpoint-polygonclassificationispresentedinthepaper.Thebasicideaofthemethodisfirstadvancedandthentwopropertiesofpolygonareintroduced.Thecriterionsforpoint-polygonclassificationaregivenexplicitly.Theanalysisshowsthatthepossessesperfectfunction,extensivesuitabilityandhighefficiency.