多面体模型

针对经过预处理后的测点数据，研究了基于测点数据的粗加工刀具路径生成方法，包括基于多面体模型的粗加工算法和基于Z-Map模型的粗加工算法。

Two rough tool-path generation approaches based on measuring point data , which include the rough machining algorithm based on polyhedron model and the rough machining algorithm based on Z-Map model , are recommended .

本文的理论假设是：在多元治理主体互动机制运转良好并且具备足够资金支持的情况下，全球环境治理的立体多面体模型才能够实现良性运转。

And the theoretical assumption of this thesis is : only the interaction regimes of the multiple governance subjects run smoothly and the fund support is enough , the three-dimensional polyhedron model of GEG would have a good operation .

基于OpenGL的复杂多面体模型间距离计算及碰撞检测

Distance computation and collision detection between complex polyhedra using OpenGL

基于LMI多面体模型的非线性预测控制研究

Research of LMI Nonlinear Model Predictive Control Based on Polynomial Mode

为了充分发挥GPU体系结构在存储带宽方面的优势，本文提出了基于多面体模型的存储优化方法。

In order to exerting the advantages of memory bandwidth of GPU architectures , this paper proposes memory optimization methods by means of polyhedral model . Polyhedral representation of a source program is built to optimize and allocate GPU memory system .

基于一般多面体模型的分割拼装成型

Dividing and Assembling-up Fabrication Based on Models of General Polyhedron

反求工程中复杂多面体模型的网格简化算法

3D Complex Polyhedral Model Simplification Method in Reverse Engineering

多面体模型的新型空间结构快速建模方法研究

Quick modeling method development for polyhedron-based space structures

基于顶点聚类的多面体模型简化方法

Mesh simplification method based on vertex clustering

本文针对这些问题提出直接使用多面体模型对块状地质体进行表达，同时给出了模型的交互编辑方法。

This paper presents a method that uses polyhedrons directly to model the blocky geological bodies .

该算法能从已知光照条件下的三幅光度立体图像中恢复任意没有遮挡面物体表面的三维结构，形成以单个像素为网格精度的物体表面的多面体模型。

The algorithm can reconstruct 3D surface from photometric stereo image given the direction of illumination .

提出一种新的基于顶点删除准则的多面体模型简化算法。

This paper presents a new method of polyhedral model simplification based on vertex removal criterion .

然后，提出了一种针对简单多面体模型的连续域中轴变换算法。

After that , a new algorithm in continuous domain for Medial Axis Transform of polyhedra is presented .

提出了基于特征边识别的实用的非光滑封闭多面体模型的简化方法。

Based on feature edge identification , a practical simplification method is proposed for closed and non-smooth polyhedral model .

提出并分析了适合于多面体模型的边界几何求交方法，并进一步给出了融入模型重构的综合算法。

Then it analyzed the boundary geometrical intersection method suitable for a polyhedral model , and further presented a hybrid algorithm that integrates model reconstruction .

该模型能充分表达框架结构的特点，与以往的多面体模型相比有较少的冗余信息、较低的模型数据量，有利于提高后续避障运算的效率。

Features of frame can be adequately expressed by this model which has fewer redundancy and lower model data completed to the past polyhedral model .

本文基于机械零件的三维多面体模型（三角面片），研究并提出了它的最小体积的包围盒生成算法。

In this paper , an algorithm for generating the mini-volume encasing box , based on three-dimension polyhedral model of mechanical part ( triangular facet ), is investigated and hence put forward .

实验表明，该算法可以简化具有复杂拓扑结构的网格模型，适用于在反求工程中获得的以重构精度为主要目标的多面体模型的简化。

Some experimental results demonstrate that the method can not only simplify any complex triangular meshes with arbitrary topological type , but also it is very suitable to simplify the polyhedral model gained in reverse engineering .

由模式识别方法所得超多面体模型可用于描述多维空间中三元金属间化合物形成区的边界，且能预报三元金属间化合物的形成与否。

A hyperpolyhedron model obtained by pattern recognition methods can be used to describe the boundaries of the zone of ternary compound formation in the multi-dimensional space , with good ability of computerized prediction for ternary intermetallic compound formation .

本文在充分考虑机械零件工程图表达特点的基础上，提出了机械零件实体模型的工程图表达中涉及到的工程图隐线消除、剖切表达和多面体模型的曲面化处理等算法。

This paper proposes three methods for the removal of hidden lines and stepped cross-section as well as accurate B-REP evaluation using polyhedral approximation . These methods are related to the engineering drawing expression for solid model of machine parts .

本文介绍一种基于顶点聚类的多面体模型简化方法，该方法主要由三部分组成：（1）把多面体模型划分成若干个小单元；

In this paper we describe a method of mesh simplification based on vertex clustering . This method consists of three parts : ( 1 ) Based on geometric proximity , the vertices of polyhedral model are grouped into clusters ;

应用射线追踪技术考虑了多面体模型中阴影测试法、多面体面模型及其电特性、射线追踪可视化技术等。

For the implementation of simulation , the ray-tracing technique is employed by considering the shadow testing of surface model of polyhedron , the surface model of polyhedron and its electric characteristic , the viewgraph of the ray-tracing technique , etc.

在这样的系统中虚拟物体大多是多面体模型且是三角形模型，采用层次包围盒法判断物体是否相交，如果相交，采用本文提出的二级检测算法快速计算出物体的接触位置。

Because the model of these systems is most polygon model , the collision detection algorithm of hierarchy bounding box was taken to determine whether two objects contact or intersect , if intersected , the two-step algorithm was taken to detect the contact position .

我们通过构筑DNA多面体链环模型，利用数学拓扑等方法，得出DNA多面体链环中存在的一种数量关系。

We study the DNA polyhedron link model with the mathematical topology , draw the DNA the polyhedral links in a number of relationship .

在生成三维随机球形骨料模型的基础上，研究了形成随机凸多面体骨料模型的方法，并利用FORTRAN语言编制凸多面体骨料生成程序和细观有限元网格剖分程序。

A FORTRAN program to generate random convex polyhedron aggregate based on the topology of spherical aggregates and the codes of the meso-scale structured finite element grids of concrete is developed .

雕塑实体模型与多面体实体模型映射的研究

Research of Mapping Between Sculpture and Polyhedral Solid Models

混凝土随机凸多面体骨料模型生成及细观有限元剖分

Approach to generation of random convex polyhedral aggregate model and plotting for concrete meso-mechanics

然后，笔者使用立体多面体分析模型对刚刚举行的哥本哈根世界气候大会做了初步分析。

Then , the author analyzes Copenhagen Climate Change Conference with the structural model of three-dimensional polyhedron .

并在随机球骨料模型的基础上，形成随机凸多面体骨料模型。

Based on this model , a3 - D random convex polyhedron aggregate model considering the actual aggregate content , gradation and shape of aggregate is established .

基于退化多边形求交的多面体虚拟壳模型重构

Polyhedral Visual Hull s Reconstruction Based on Degenerated-Polygon-Intersection