本文求出了一些曲面集的亏格分布的显式表达式。
In this paper, expressions of the genus distribution for certain sets of surfaces are provided.
该方法通过二次曲面求管线表面轮廓方程进而求得管线的型值点集。
With this method, shape points were calculated by surface outline equation got from quadratic surface.
ACIS是一种三维几何造型引擎，它集线框、曲面和实体造型于一体，为各种3d造型应用的开发提供了几何造型平台。
ACIS is a prominent 3d modeling engine, which integrating wireframe, surface, and solid modeling in itself, supplies a geometric modeling platform for different 3d modeling applications.
基于散乱数据点集构造三角插值曲面的方法，在CAD/CAM、科学计算可视化、图像处理等领域有着广泛的应用。
The triangular interpolating surface construction based on scattered data points has extensive applications in CAD/CAM, scientific visualization, image processing.
在定位的基础上拟合脊柱中心线并建立测点集，应用MC算法输出三角网格模型，重建出脊柱中心曲面。
On the basis of the spine and fitting the centerline of spine, MC algorithm is used to output triangular mesh model to reconstruct the spine center surface.
在汽车覆盖件冲压工艺设计过程中，采用投影点集表示曲面的局部形状；
The local shape of a vehicle cover panel surface is very important in the course of its stamping designing process.
测量点集网格拓扑重建是曲面重建的关键技术之一。
Mesh topology reconstruction is one of the key technologies of surface reconstruction.
该方法通过在遥感图像上选取局部极值点来构成平面散乱数据点集，并在此基础上进行三角剖分、优化和三角插值曲面构造。
It gets the plane scattered data points through selecting the local extremum points on the remote image, and then triangulates, constructs the triangular interpolating surface on it.
提出了一种基于曲面局平特性的，以散乱点集及其密度指标作为输入，以三角形分片线性曲面作为输出的拓扑重建算法。
An algorithm for topology reconstruction is promoted that takes as input an unorganized set of points with known density and carries out as output simplicial surfaces.
笔者总结了从三维散乱数据点集重建物体曲面的技术，重点介绍了其中的一些典型方法。
This paper summarizes the technology of surface reconstruction from three-dimensional scattered data points. Some typical methods are introduced in detail.
首先分析了分形布朗曲面及其水平集的特征。
The properties of Fractal Brown Surface and its horizontal are analyzed first.
受经典物理学中极性场模型及扩展点集思想的启发，提出一种称为“场拟合”的隐曲面重建方法。
Motivated by the concept of classic physical polar field model and off-set points strategy, we present a new approach, called field fitting.
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。
Triangulations from 3d scattered point sets play an important role in surface modeling. The applied criterion determines the final triangulation.
水平集方法应用于图象分割的曲线或曲面进化问题，是一种稳定有效的数值计算方法。
Level Set methods are robust and efficient numerical tools for resolving curve evolution in image segmentation.
主要说明AC IS几何技术是一个面向对象软件技术，它集线框、曲面和实体造型于一体，并允许这3种表示共存于统一的数据结构中。
Targeted at objects this paper introduces ACIS software technology, which combines wireframe model, surface model and solid model. It allows three presentations in the integral system.
为了精确评价车身曲面品质，在综合考虑曲面精度和光顺性的基础上，确定了汽车车身曲面品质的评价因素集。
To evaluate the quality of automobile surfaces precisely, on the basis of considering both of precision and smoothness, a factor set of evaluation was determined.
将三维离散数据点集拟合为空间参数曲面，在此参数曲面上规划五轴激光加工的等距轨迹。
A parameterized spatial surface has been constructed from3 dimensional scattered data, and upon it the5 axis trace for laser processing can be laid out.
根据三维散乱点集构造曲面剖分在CAGD/CAD、反求工程等方面有着十分广泛的应用。
Surface triangulations based-on 3D arbitrary point-sets are widely applied in CAGD/CAD and reverse-engineering, etc.
根据三维散乱点集构造曲面剖分在CAGD/CAD、反求工程等方面有着十分广泛的应用。
Surface triangulations based-on 3D arbitrary point-sets are widely applied in CAGD/CAD and reverse-engineering, etc.
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