There are three methods of modeling in three dimensions: wireframe modeling, surface modeling, and solid modeling.
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。
Geometric constraints are important means to improve the precision of complex surface modeling. Points and curves are the most effective ones among geometric constraints.
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。
Obviously, this research mainly focused on the scope of locomotive 3-d surface modeling.
显然，这项研究的范围主要集中在列车三维表面建模上。
The surface modeling method is improved; a new subdivision surface modeling method is endless.
原有的细分曲面造型方法不断改进，新的细分曲面造型方法层出不穷。
Quadrilateral partition on triangular meshes data is the primary process of composite surface modeling.
四边形网格划分是组合曲面建模技术的首要条件。
Interpolation to vertex positions and normals is one of important contents in parametric surface modeling.
顶点位置和法向插值是参数曲面造型的重要内容。
This paper presents a 3d visualized surface modeling method that deals with synthetic characteristic curve for turbine.
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。
In product design and development, surface modeling of product based on measured data often is finished by some commercial software.
在产品设计与开发中，测量数据的表面建模主要采用一些商品化软件来完成。
In this paper, a virtual human modeling method based on curved-surface modeling and polygon modeling is presented for garment industry.
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。
Therefore, the surface modeling is an important element in the CAD, CG, it has a wide applications in the field of industrial technology.
因此，曲面造型是CAD、CG中的一项重要内容，在工业技术领域中有广泛的应用。
Triangulations from 3d scattered point sets play an important role in surface modeling. The applied criterion determines the final triangulation.
由3D散乱点集构造三角剖分在曲面造型中有着十分重要的作用，而剖分所采用的优化准则决定了最终的剖分结构。
The 3D profile measuring technology is an important approach, and composite surface modeling is the main content for researching in reverse engineering.
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。
Physics based modeling is one of the keen free form surface modeling method at present, and it should be a practical surface modeling method in the future.
基于物理的造型方法是当今曲面造型研究的热点之一，并可望成为今后曲面造型的实用工具。
This paper mainly consists of the theoretical methods of complex surface modeling, the research of improved moving surface fitting and analysis of example.
本文主要由复杂曲面造型方法、改进的移动曲面拟合法研究和实例应用三部分组成。
This article introduces the MATLAB curve fitting toolbox, and provides a special application method through the test data processing of Automobile surface modeling.
介绍了MATLAB曲线拟合工具箱，并通过汽车覆盖件的曲面造型测试数据的处理，给出了具体的应用方法；
Subdivision is a new method of discrete modeling. By defining the refinement rules of control meshes, subdivision surface can be considered as a method of surface modeling.
细分方法是一种新的离散造型技术，细分曲面通过定义控制网格的细分规则来表示造型曲面。
The aim of this dissertation is to perform complex free form surface modeling by choosing appropriate methods, then it can satisfy the requirements of numerical control machining.
本文的出发点是通过选用适合方法对复杂自由曲面进行造型，满足曲面数控加工的需要。
Conducted in-depth exploration and research of reverse engineering for the reconstruction of complex surfaces, provides a good idea for the similar parts of complex surface modeling.
通过实验对逆向工程技术应用于复杂型面的三维数模重构进行了深入的探索和研究，为类似复杂型面零件的造型提供了很好的思路。
The 3d ore body surface modeling technique mainly contains contouring the mineral profiles within prospecting line, triangulating the neighbouring contours, triangulating inside single contours.
三维矿体表面建模技术主要包括勘探线剖面矿体边界线的圈定、相邻边界线之间三角剖分和单个边界线内部三角剖分等内容。
The 2D curve and 3D surface modeling of iris′s deformation morphology were build at the different pressure difference with crystal non-rising and at the same pressure difference with crystal rising.
建立了不同压强差下无晶体抬升时虹膜膨隆形态二维曲线及三维曲面模型；以及相同压强差下晶体抬升高度不同时虹膜膨隆形态的二维曲线及三维曲面模型。
UML technology-based augertype functional design method of"core to edge"and"trunk to refined"was adopted to make every function of the surface modeling system a comparatively well-defined arrangement.
使用UML技术，采用核心→边缘、主干→细化的螺旋式功能设计方式，使得所设计的曲面造型系统的各种功能拥有比较清晰的层次性。
Surface modeling defines precisely the outside of the object being modeled.
曲面建模法精确定义了要建模对象的外部结构。
As an important part of Surface Modeling, mesh Subdivision used to smooth an initial control mesh several times using some method, until up to the specified degree of smoothness.
作为曲面造型的重要分支，网格细分是以计算机为工具，对一个初始控制网格，采用某种方法对网格进行多次细化，直到满足指定的光滑度和细腻度。
Pillar Modeling Method, Surface Modeling Method, Single outline Section Modeling Method and Multi-outline Section Modeling Method are developed for building these four kinds of structure elements.
利用柱体构模、表面构模、单轮廓断面构模、多轮廓断面构模技术分别进行这四种类型岩体的三维构模。
Pillar Modeling Method, Surface Modeling Method, Single outline Section Modeling Method and Multi-outline Section Modeling Method are developed for building these four kinds of structure elements.
利用柱体构模、表面构模、单轮廓断面构模、多轮廓断面构模技术分别进行这四种类型岩体的三维构模。
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