曲线

A kind of subdivision algorithm based on the way of bisection is put forward.This algorithm can subdivide curve evenly,and can get to approach better result by less subdividing.

提出一种基于对分方式的细分算法，能均匀地细分曲线，并用较少的细分次数得到对曲线较好的逼近效果。

We gave algorithm of boundary curve, and excellent results of blending surfaces were shown by examples.

还给出了建立渐变序列的边界曲线算法，通过实例说明了造型和编辑边界曲线能得到良好的拼接效果。

In proposed algorithm, the deformation of the image remains continuous and local by building the same outer boundary for test feature curve and reference feature curve.

该算法对测试特征曲线和参考特征曲线建立共同的外部边界，可以保证配准变换的连续性与局部性。

Finally, using cross section method, the equationof product crash boundary curve of back peak zigzag pulse is deduced.

这种方法有两个明显的缺点：不仅费时费工，而且不便分析产品破损边界曲线的物理意义和把握这条曲线的几何特征。

The curve of surface boundary is generated according to these points.

4对于线扫描激光传感器无法测得的边界信息，提出根据三目视觉获得的物体三维边界运用B样条曲线延拓技术使得激光线条中含有准确的边界信息；同时利用B样条曲线插值技术完成在延拓区间内的数据添加，从而提高建模的精度。

Based on the analysis of the characteristics of the compensation directions for boundary curve s in rapid prototyping direct slicing, a new method, which can determinate the compensation direction by converting the boundary curve to beeline polygon,is proposed.

在分析快速成型制造中直接切片真实边界曲线补偿方向特点的基础上，提出了一种将曲线边界转化为直线多边形进行补偿方向判定的方法，并阐述了该判定方法的几何意义。

According to the boundary curve features of the object, all kinds of boundaries sign patterns of the object are setup and used to train the second RBFNN, so as to tangent points, inflection points with low curvature and boundary types.

根据工件边缘曲线的特征，建立了各种边缘的曲率符号模型，用该模型训练第二个RBFNN，从而识别具有低曲率的切点和拐点及边缘曲线的类型。

Based on the analysis of the characteristics of the compensation directions for boundary curves in rapid prototyping direct slicing, a new method, which can determinate the compensation direction by converting the boundary curve to beeline polygon, is proposed. The geometric signification of the polygonal method is demonstrated.

在分析快速成型制造中直接切片真实边界曲线补偿方向特点的基础上，提出了一种将曲线边界转化为直线多边形进行补偿方向判定的方法，幷阐述了该判定方法的几何意义。

The boundary of interval Ball curves of degree n is discussed and two algorithms for the degree reduction of interval Ball curves are given by means of linear programming and best approximation respectively.

讨论了n次区间Ball曲线的边界的构成；同时通过讨论区间多项式的降阶，利用线性规划法及最佳一致逼近法，给出了区间Ball曲线的的降阶算法。

2Algorithm of approximating to the domain bounded by multiple curves anddistinguishing different material regions is programmed.

研究了对多种曲线组成区域的网格逼近、不同材料区域的识别算法，提出并改进多条曲线交界处网格逼近的算法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。