曲面建模法精确定义了要建模对象的外部结构。
Surface modeling defines precisely the outside of the object being modeled.
四边形网格划分是组合曲面建模技术的首要条件。
Quadrilateral partition on triangular meshes data is the primary process of composite surface modeling.
人体曲面建模与自由变形方法是实现人体数字化的关键技术。
Body modeling and FFD (Free form Deformation) methods are key techniques in the field of body digitalization.
三维建模有三种方法：线框建模法、曲面建模法及实体建模法。
There are three methods of modeling in three dimensions: wireframe modeling, surface modeling, and solid modeling.
几何约束是提高复杂曲面建模精度的重要手段，其中点与曲线是最有效的几何约束。
Geometric constraints are important means to improve the precision of complex surface modeling. Points and curves are the most effective ones among geometric constraints.
针对人体模型在服装行业的应用，提出了一种基于曲面建模与多边形建模的混合人体建模方法。
In this paper, a virtual human modeling method based on curved-surface modeling and polygon modeling is presented for garment industry.
三维轮廓测量技术是实现反求工程的重要手段，复杂曲面建模技术是反求工程研究的重点内容。
The 3D profile measuring technology is an important approach, and composite surface modeling is the main content for researching in reverse engineering.
空间曲面建模可以使焊接机器人在有限示教的条件下自动建立焊接模型并精确完成焊接和磨削操作。
Model of spatial surface can make robot automatically build model of welding and finish the manipulation of welding and grinding in condition of being taught by people limitedly.
样条曲面具有灵活性，概念简单，易于通过操作控制点控制形状，所以对于自由曲面建模十分重要。
Spline surfaces are very important for the modelling of free form surfaces, because of their flexibility, simple concept and easy shape manipulation by the control points.
以生产准备中磨叶片工具的计算为例，使用三维CAD系统的自由曲面建模技术，精确计算出叶片工具设计中所需叶片通道数据。
In computation on blade grounding tool design in technical preparation, accurate blade passage data necessary for tool design has been obtained using free camber modeling technique of 3d CAD.
将卷积曲面应用于人脸建模，提出了在个性化人脸模型上生成皱纹的新方法。
A new method to simulate wrinkles on individual face model was presented, which applied convolution surface to face modeling.
主题包括使用实验设计和响应曲面造型，了解制造过程的物理，以及缺陷和产量建模和参数优化。
Topics include the use of experimental design and response surface modeling to understand manufacturing process physics, as well as defect and parametric yield modeling and optimization.
讨论曲面零件信息建模方法，通过建立信息处理、转换模块以连接CAD/CAM 。
The information modeling of sculptured surface is discussed. An information processing and converting module are developed in order to integrate CAD and CAM.
本文以蜗杆、蜗轮及分度凸轮等具有空间曲面轮廓的蜗杆类零件为研究对象，探讨了该类零件的实体建模问题。
This dissertation focuses on the solid modeling of the Worm-Type Parts, such as the worm, worm wheel, indexing CAM, and so on, which has spacial surface.
文中最后选取了一个比较有代表性的模型，通过对其进行建模和编程，验证本文的复杂曲面仿真算法和误差分析方法。
At last, a representative model is selected in this paper, using the program of this model, validated the simulating method of complex surface and the error analysis method.
重点对反向工程中自由曲面重构和CAD建模进行了描述和分析。
The function of each model is analyzed and the construction of freedom surface and the CAD model are especially described and analyzed.
函数曲面可由解析函数表达式来表达，建模方便。
The function surface can be expressed by analytic expression and constructed easily.
介绍了以反求工程为技术支撑的自由曲面数控加工的基本原理和全过程，并对其中的数字化扫描、CAD建模及刀具轨迹生成等关键技术作了进一步的分析。
Basic theory and procedure of NC machining for free-form surface based on reverse engineering were introduced. Digital measure and CAD modeling as well as tool path generating were analyzed.
样条曲面的局部设计是完全根据反求工程CAD建模的实际需求而提出的一种局部区域曲面设计方案。
Local B-spline surface designing strategy, a surface coincided technology, is proposed entirely originated from practical requirements in reverse engineering CAD modeling.
基于自由曲面方程，由矩阵运算得出刃线运动包络面，对球头铣刀加工的表面形貌进行了建模和仿真。
Based on the models and the free-form surface formula, the moving envelope surface of ball-end mill is obtained by means of matrix calculating, the topography is modeled and simulated.
车身RE技术通常涉及三维测量（表面数字化）、数据处理、曲面重构、三维建模及快速制造等相关技术。
The automotive body RE generally composed of 3D surface digitalization, data processing, surface reconstruction, CAD 3D modeling and rapid manufacture, etc.
提出了一种处理水轮机综合特性曲线的三维曲面可视化建模方法。
This paper presents a 3d visualized surface modeling method that deals with synthetic characteristic curve for turbine.
研究曲面边界建模过程中的曲面求交问题。
This paper focuses on the surface-surface intersection problem in surface border modeling.
首先，我们运用流体力学的原理，分析推导出流曲线曲面的参数方程，实现了挤压型腔的数学建模。
First, we realize the mathematic model through getting the parameterized equation by analyzing the fluid mechanics and make use of Bezier curve to approximate stream curve.
讨论了混合建模方法的主要研究内容，并研究了二次曲面特征和过渡曲面特征提取。
Main contents in relation to the hybrid modeling method are discussed, and some key techniques such as quadric surface feature extraction and blend surface feature extraction are addressed in details.
熟练掌握CAD制图、识图，对三维建模、曲面有一定的基础；
Master CAD drawing, knowledge chart, the 3 d modeling, curved surface has the certain basis;
为了用较少的参数反映人肢体皮肤的变形，该文提出以旋转圆锥曲面进行弹性连接体（人体）三维建模。
This paper presents a new method of elastic articulated objects(human bodies) modeling based on a new revolving conic surface.
为了用较少的参数反映人肢体皮肤的变形，该文提出以旋转圆锥曲面进行弹性连接体（人体）三维建模。
This paper presents a new method of elastic articulated objects(human bodies) modeling based on a new revolving conic surface.
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