NURBS curve has been widely used in curve and surface design.
NURBS广泛地应用在曲线和曲面设计中。
By extending the normal based subdivision scheme for curve and surface design, a new algorithm for image interpolation is proposed in this paper.
将基于法向的曲线细分技术应用到图像插值中，提出一种基于细分的图像插值算法。
The optimization design of the CAM curve is very important in the design of a zoom system because it will eventually affect the stability of image surface and flexibility during zoom operation.
由于变焦系统的凸轮曲线对变焦过程中像面的稳定、操作的灵活性都有重要影响，因此变焦曲线的优化设计有着重要的意义。
In the design of plow bottom surface formed by horizontal straight-line elements, it is important to determine the shape and parameters of guiding curve.
在设计水平直元线犁体曲面时，确定其导曲线的形状和参数是重要的一环。
It can carry out curve and surface modelling conveniently. An effective tool is provided for product modelling, all kinds of drawing and the design and manufacturing of moulds.
利用该系统可方便地进行曲线、曲面造型，从而为工业产品造型，各种图案设计，模具设计及制造提供有效的工具。
Constructing triangle surface which interpolates the boundary curve and cross-boundary slopes on a triangle is the basic problem in computer aided geometric design, computer graphics and so on.
在三角形域上构造对边界曲线和跨界导数插值的三角曲面是计算机辅助几何设计和计算机图形学等领域中的基本问题。
The result show that the application of NURBS technology can improve the efficiency and accuracy of computer design for complicate curve and surface model.
实践结果表明：应用NURBS技术将大大提高利用计算机设计复杂曲线曲面模型的精度和效率。
The data structure design of free curve and surface reconstruction is one of the key technologies of developing reverse engineering software.
自由曲线曲面重构的数据结构设计是开发逆向工程软件的关键技术之一。
The three dimensional design theory of the grooved drum trench curved surface includes: 1)the indirect and direct design of the bottom datum curve;
槽筒沟槽曲面三维设计理论包括：1）槽底基准曲线的间接设计与直接设计；
The three dimensional design theory of the grooved drum trench curved surface includes: 1)the indirect and direct design of the bottom datum curve;
槽筒沟槽曲面三维设计理论包括：1）槽底基准曲线的间接设计与直接设计；
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