1)B-spline surfaceB样条曲面
1.Improvement on modeling a 3-D yarn with B-spline surface;B样条曲面技术构建单纱模型的改进
2.Study on constructing the 3D yarn model by B-spline surface (part Ⅱ):inserting 3D bumping texture on the surface of the yarn;用B样条曲面构建纱线三维模型的研究(Ⅱ):纱线捻度的三维模拟
3.Interpolation for improving the subpixel spatial resolution based on bi-cubic B-spline surface;基于双三次B样条曲面亚像元图像插值方法
英文短句/例句
1.Shape Modification of B-Spline Surface--Stitch of B-Spline Surfaces Based on Isoparametric CurveB样条曲面的形状修改——基于等参线的曲面缝合
2.Interactive B-spline Surface Modeling based on Force Density Method基于力密度的交互式B样条曲面变形
3.Hole Repairing in Triangular Mesh Models and B-Spline Surface Fitting;三角网格模型的孔洞修补及B样条曲面拟合
4.Research on Smoothing and B-Splines Surfaces Fitting of Triangular Mesh Models;三角网格模型光顺与B样条曲面拟合算法研究
5.Study on the Theory and Technology of B-Spline Surface Reconstruction Based on Scattered Points;基于散乱点的B样条曲面重构理论和技术研究
6.Properties and Applications of Connecting Functions for GC~1-Connected B-Spline SurfacesB样条曲面GC~1拼接中连接函数性质及其应用
7.Solid modeling method of ZA worm-gear based on bicubic B-spline surface基于双三次B样条曲面的ZA蜗轮实体建模方法
8.Study of Fairing Free Curve and Surface Base on B-spline;基于B样条的自由曲线曲面光顺研究
9.B Spline Curve and Surface Reconstruction Based on Genetic Algorithm;基于遗传算法的B样条曲线曲面重建
10.Research on NUAT B-spline Curve and Surface Interpolation;NUAT B样条曲线曲面的插值研究
11.B-spline Curve and Surface Reconstruction under Geometric Constraint;几何约束条件下的B样条曲线曲面重构
12.Research on Modeling Minimal Surfaces Based on Weighted B-spline;基于加权B-样条的极小曲面造型研究
13.Mesh Editing with Hierarchical B-Splines;基于层次B-样条的网格曲面编辑技术
14.B-spline Surface Fitting Based on Quasi-interpolation基于拟插值的B-样条曲面拟合方法
15.Rotation Surface Modeling Technique by Cubic B-spline Free DrawingCubic B样条旋转曲面的自由绘制技术
16.Research on the Theory and the Application in Modeling of C-B-Spline Curves & Surfaces;C-B样条曲线曲面理论及其在造型中的应用
17.Adaptive Cubic B-Spline Approximation on Curve and Surface Reconstruction;曲线曲面重建中的三次B样条自适应逼近算法
18.α-B Spline Interpolation Curves and Surface with Shape Parameters;带形状参数的α-B样条插值曲线及曲面
相关短句/例句
B spline surfaceB样条曲面
1.Properties of bi quadratic B spline surface are investigated by the subdivision approach, and the control mesh of bi quadratic B spline surface is constructed by employing Doo Sabin subdivision to derive the parametric representation of interpolation surface.文中利用子分曲面理论研究双二次 B样条曲面的性质 ,在此基础上利用 Doo- Sabin子分模式构造插值顶点位置和法向的双二次 B样条曲面控制网格 ,得到插值曲面的参数表示 。
2.Based on B Rep topology model, B Spline surface is used to represent each surface in the model.基于 B-Rep重建物体模型表示 ,用 B样条曲面表示其中每个曲面 ,对曲面间的连续性条件进行了研究 。
3.According to double cube B spline surface, a mathematical model of the airfoil blade is constructed by given point.应用双三次均匀B样条曲面 ,建立了对给定型值点的发动机叶片叶身进行曲面构造的数学模型。
3)B-spline surfacesB样条曲面
1.A new method of rapid evaluation of B-spline surfaces was proposed with GPU fragment program.提出了一个基于GPU片元程序计算B样条曲面的加速算法。
2.At the same time, we need to transform triangular mesh model to parameterized smooth B-Spline surfaces in order to redesign the part or other consequent application.同时,为了便于零件的改型设计及其他的后续应用,需将三角网格模型转化为参数化的光滑B样条曲面模型。
4)B-spline surfaceB-样条曲面
1.The surface of the paddle blade is non-uniform rational B-spline surface,the surface has met precision requirements for paddle blade.桨叶曲面为非均匀有理B-样条曲面,达到了桨叶曲面的精度要求。
2.For each feature region,different method was applied for quadratic surfaces and B-spline surfaces separately.基于原始曲面的信息,对变形后的网格进行区域分割,针对分割后的每个特征区域,分别对二次曲面和B-样条曲面采用了不同的重构方法。
5)B-spline curve and surfaceB样条曲线曲面
6)b-spline curve surfaceB-样条曲线曲面
延伸阅读
B样条曲面B样条曲面B-spline surface B yangtiao qumianB样条曲面(Bsp一ine surface)用分段B样条多项式函数及控制点网格定义的面。基于B样条曲线,可以得到B样条曲面的表示式。给定(m+1)(n十l)个空间点列凡(i=0,1,…,m,]=0,1,…,n),则s(二,w)一艺艺尸。从,*(。)凡,,(w),该二0少=O u,功任[0,1」定义了kXz次B样条曲面。式中从,*(u)和凡,,(w)分别是k次和l次的B样条基函数,由凡组成 的空间网格称为B样条曲面的控制点网格。上式 也可写成如下的矩阵式称(u,二)二认呱几M王w王,y任[l,。+2一划 z任[l,n+2一z〕,u,wC〔O,1」式中y,z—表示在u,w参数方向上曲面片的 个数。 Uk=[。‘一‘,uk一2,…,u,1〕, 钱二仁砂一’,砂一2,…,w,1〕, 凡,二氏,i任[y一1,y+k一2〕, ,任仁z一1,z+z一2] 凡是某一个B样条面片的控制点编号。最常用的 是二、三次均匀B样条曲面的构造。 (1)均匀双二次B样条曲面 已知曲面的控制点巧(i,]=o,1,2),参数u、 二,且O镇u,w簇1,k=l=2,构造步骤是: ①沿w(或u)向构造均匀二次B样条曲线,即 有 ,「‘一“P0(w,一L矿“」[一::侃同哪 WMs经转置后尸。(w)=「尸oo尸。,尸。2〕磷wT;同上可得P,(二)=[尸,。尸,,尸,2」M五WT pZ(二)=[pZ。p21 p22]M百wT ②再沿u(或w)向构造均匀二次B样条曲线,即可得到均匀双二次B样条曲面。 ,L 11﹁.!一|到泊恤、、/)pp(w嘿的嘿编s(u,w)二UM日(w T W TB M翻川州护P PP=UM白 匕PZo P21简记为s(u,二)二〔侧砂呵百wl (2)均匀双三次B样条曲面 已知曲面的控制点八(£,j=o,1,2,3),参数u,二且“,w任【0,1],构造双三次B样条曲面的步骤同上述,其矩阵形式是 S(u,w)=L时正声吸至百wT, 门几创川川旧洲翻叼--302 1222犯尸尸尸P尸尸尸尸尸冲尸峥 一一 P月J月j 3一6,l八、︶n”4.内J,1卜|匡IL 1一6 一一 姚双三次B样条曲面如图1所示。图1双三次B样条曲面
