简介:大型服务行业针对VIP客户的电话营销应用很普遍,如果引入VoIP技术来替代基于电路交换的传统模式的呼叫中心,不但可解决传统呼叫中心部署复杂、成本较高的问题,也使得VoIP技术的技术特点灵活发挥出来,为实际的生产应用提供有力支撑。
简介:AnewmethodisproposedforsurfaceconstructiononirregularquadmeshesasextensionstouniformB-splinesurfaces.Givenanumberofcontrolpoints,whichformaregularorirregularquadmesh,aweightfunctionisconstructedforeachcontrolpoint.TheweightfunctionisdefinedonalocaldomainandisC1continuous.Thenthewholesurfaceisconstructedbytheweightedcombinationofallthecontrolpoints.ThepropertyofthenewmethodisthatthesurfaceisdefinedbypiecewiseC1bi-cubicrationalparametricpolynomialwitheachquadface.ItisanextensiontouniformB-splinesurfacesinthesensethatitsdefinitionisananalogyoftheB-splinesurface,anditproducesauniformbi-cubicB-splinesurfaceifthecontrolmeshisaregularquadmesh.Examplesproducedbythenewmethodarealsoincluded.