The approximating method of NURBS curve is in detail discussed based on the section contour data.
基于截面轮廓数据,详细探讨了NURBS曲线的拟合方法。
The shape of streamlined train head is made of the 3-dimensional space free form surface, whose shape outline curve USES NURBS curve and complex shape surface USES 3-d NURBS surface.
基于流线型的列车头部外形由三维空间自由曲面构成,提出采用NURBS曲线设计外形型线和用三维nurbs曲面描述复杂三维曲面的车头外形设计方法。
Based on NURBS curve interpolation technique, a new CAE optimization method is proposed.
提出了一种基于NU RBS曲线插值技术的CAE优化方法。
By calculating and comparing the minimum distances between a point and these curve segments, the minimum distance between a point and NURBS curve can be found.
计算点到各曲线段的最小距离,通过比较这些最小距离值,找出点到平面NURBS曲线的最小距离。
The NURBS curve direct interpolator was investigated in detail aimed at the demand of complex profile parts'high speed and high accuracy CNC machining.
针对复杂型面零件的高速高精度加工需要,深入研究了NURBS曲线直接插补方法。
In this paper, the theoretical and technical bases of NURBS curve and surface are mainly discussed. Its engineering application and practice in the field of CAD are also researched.
本文论述了自由曲面(NURBS曲线和曲面)的理论和技术基础,并对其在CAD领域的工程实际应用进行了研究和探索。
The algorithm automatically identifies the point at which the NURBS curve has to be faired. Modifying locally the control polygon, the algorithm yields a NURBS curve with improved fairness.
此算法自动找出NURBS曲线需要修改的那一点,局部修改控制多边形,使生成的新曲线更加光顺。
NURBS curve equation has three kinds of the equivalence form, i. e. rational fraction, rational base function and homogeneous coordinate.
NURBS曲线方程具有三种等价形式:有理分式表示、有理基函数表示和齐次坐标表示。
Based on analyzing the NURBS curve interpolation Algorithm, this paper emphasizes on the three NURBS curve real-time interpolation technology.
在分析NURBS曲线现有插补算法的基础上,着重研究了三次NURBS曲线实时插补技术。
The projection method of control points for calculating the minimum distance between a point and a planar NURBS curve is proposed.
提出了一种利用控制顶点投影法计算点到平面NURBS曲线最小距离的算法。
The paper studies the tessellating algorithm of NURBS curve and surface, then puts forward the tessellating method of NURBS tri-parametric solids.
随后论文研究了NURBS曲线曲面的分割算法,进而推导出NURBS三参数实体的离散方法。
NURBS curve has been widely used in CAD/CAM. This paper discusses NURBS curve, its interpolation method and application in hull line design for twin stern ships.
NURBS曲线技术已经广泛使用在CAD/CAM等各个领域里。本文讨论NURBS曲线及其NURBS插值方法,并利用该插值方法设计双艉船的型线。