cross curve net fly

Method based on subdivision and optimization for curve approximation;

一种基于细分与优化技术的曲线逼近算法

The results show that the method can reflect the hydraulic machinery characteristics,and improve the calculation precision compared with holistic curve approximation method.

针对现有曲线逼近方法的不足,给出了一种基于元胞自动机原理的曲线逼近方法,并对应用这种方法逼近水力机械特性的计算过程进行了研究。

A curve approximation method based on Cellular Automata was produced,and was applied to digital approximation of hydraulic turbine performance data.

给出一种基于元胞自动机的曲线逼近方法,并将这种方法应用于对水轮机的特性数据进行数值逼近。

This paper discussed some other characteristics of asymptotic curve through careful analysis, such as the characteristics of asymptotic curve on the surface of translation, the parallel surface and other surface and draw a conclusion that normal line surface of the asympt.

三维欧氏空间中的渐近曲线是局部微分几何中的一种重要的曲线 ,它有许多重要的性质和应用 ,这些在一般的教科书上都有介绍。

In Minkowski space R~(3,1) by employing the method of moving frames to describe construcions and to make local calculations,the equations about asymptotic direction and asymptotic curve of spacelike surface are obtained,and some corresponding results obtained before are extended and improved.

考虑Minkowski空间R3,1中类空曲面的渐近方向与渐近曲线,采用活动标架的方法进行局部计算和整体结构的刻画,得到了渐近方向与渐近曲线的一般方程,推广并改进了已有的结果,并通过具体例子加以阐述。

In this paper,we discuss parallel surfaces of a surface and obtain the sufficient and necessary condition for geodesic (asymptotic curve) of the surface whose corresponding curve is geodesic(asymptotic one) of the parallel surface.

给出平行曲面上对应曲线同时为测地线（ 渐近曲线） 的一个充要条件。

Research on Curve Approximation and Surface Reconstruction in CAD;

CAD中曲线逼近和曲面重建问题的研究

Approximation of Circles by Curvature Continuous Be′zier Curves;

利用三次Be′zier曲线逼近圆的一种方法

hyperbolic approximation

双曲线近似法[逼近法]

The Rational Approximation of Planar Bézier Offset Curve;

平面Bézier曲线的等距曲线有理逼近

Rational Approximation of Offset Curves of Rational Bézier Curves

有理Bézier曲线的等距曲线有理逼近

Approximation of the Offset Curves of Bézier Curves by Bézier Curves of the Same Degree

Bézier曲线的等距曲线的同次多项式逼近

Research on Geometric Approximation Problems in Curves and Surfaces Modeling;

曲线曲面造型中几何逼近问题的研究

Degree Reduction of the Said-Ball Curves and Surfaces;

Said-Ball曲线曲面的降阶逼近

Research on Approximate Degree Reduction for Interval Rational Bezier Curves and Surfaces;

区间有理Bezier曲线、曲面的降阶逼近研究

The Study of Degree Reduction Approximation Algorithm for Wang-ball Curves and Surfaces

Wang-ball曲线、曲面的降阶逼近算法的研究

The Research on Approximation Algorithm for NURBS Curves with Line and Circular Arc in NC;

NURBS曲线的直线与圆弧数逼近算法研究

Curve-intersecting Poly-line Approximation and Compression of General Curves;

一般曲线的相交折线逼近与数据压缩

It is based on the principle of uniform approximation, adopting the method of approximating nonlinear curve with noncontinuous bent line uniformly.

它基于一致逼近的原理,采用不连续折线一致逼近非线性曲线。

Multidegree Reduction of Bézier Curves with Conditions of Endpoint Interpolations

带端点插值条件的Bézier曲线降多阶逼近

Study on Interpolation Algorithm of Angle Approach about Taper Curve

圆锥曲线的角度逼近插补方法研究

Research and Application of Whole Fairing and Approximation Algorithm of NURBS Curve;

NURBS曲线整体光顺逼近算法研究与应用

Least Squares Degree Reduction Approximation of Bézier Curves with Shape Parameter;

带形状参数Bézier曲线最小平方降阶逼近

A circularity approach to the numerical control of the complex curvilinear machining;

圆弧逼近法实现复杂曲线的数控加工