几何基础

It describes the color characteristic of device accurately through constructing the geometric model and builds gamut mapping model in the section plane of gamut by dissecting. The improvement of image characteristic obtaining at real time satisfies the application and supports the adaptive gamut mapping. The sampling and visualization of sample set in different color space show the optic difference and give the error analysis of the color conversion between them. Based on the study of the color relation among the color spaces, the visualizing color can be created automatically with conversion formulas.

该工具在获取彩色输入／输出设备彩色特性的基础上，通过构建几何模型对设备色域进行了精确描述；利用对色域的剖分操作，构造基于剖面的色域匹配模型；通过改善图象彩色特性获取的实时性，使其能有效获取图象源的特征并满足色彩管理的应用需求，支持了自适应色域匹配；对不同色彩空间样本的采集和对比显示有效体现了色彩的视觉差别，并提供了它们之间转换的误差分析；在探究不同色彩空间的颜色对应关系的基础上，实现了可视化的真彩颜色的自动生成，使可视化颜色更加逼真。

By way of the reverse design on the standard tooth with Surfacer, it has realized rebuilding the three-dimensional model for the complicated surface of standard tooth, which is the base of the proceeding CAD design and development.

通过在Surfacer中对标准牙齿反求设计，实现了标准牙复杂曲面3D几何模型的重建，为后续的CAD设计及在此基础上的二次开发奠定了基础。

Secondly, the author has set up the Factor Set, Factor Weight Set, Evaluation Set and Evaluation Matrix based on the Fuzzy Mathematics, therefore the quantification of expert's experiences is solved. Following the example of product design procedure consisting of designing, collating and checking, the Two-stage Fuzzy Synthetic Evaluation has been established in order to supply the evaluating method of design quality for drawing die-face. After two times of eligible analysis above, the synthetic optimizing design of geometry, material and process can be done with simulation.

以模糊数学为基础，通过确定影响覆盖件拉延模型面设计的因素集、因素权重集、备择集和评判矩阵，解决了专家设计经验知识的量化问题，并建立二级模糊综合评判方法，据此设计、校对、审核等技术人员可以共同对拉延模型面设计质量进行优劣评判和修改；在前面二次分析合格的基础上，利用有限元仿真技术进行几何、材料、工艺多因素综合的优化设计。

Main Curriculums: Higher Mathematics, Engineering Mathematics, College Physics, English, Descriptive Geometry and Building Cartography, Program Design and Arithmetic, Introduction to Java, Network Database, Numerical Analysis, Tensor Analysis, Specialty English, Document Retrieval and Utilization, Introduction to Mechanics, Theoretical Mechanics,Mechanics of Materials,Structural Mechanics,Computational Mechanics and Engineering Software, Theory of Plate and Shell, Theory of Elasticity, Composite Mechanics, Advanced Structural Mechanics,Plastic Mechanics of Structural Engineering, Fluid Mechanics, Experimental Mechanics, Vibration Theory, Soil Mechanics and Foundation, Steel Structures, Concrete Structures, Engineering Construction and Engineering Estimate, Engineering Signal Analysis and Processing, CAD of Structure, Design of Structural Optimization, Modern Testing Technologies.

专业课：高等数学、工程数学、普通物理、英语、政治、画法几何及建筑制图、程序设计与算法语言、Java基础、网络数据库、数值分析、张量分析、专业英语、科技文献检索、力学概论、理论力学、材料力学、结构力学、计算力学与工程软件、板壳理论、弹性力学、复合材料力学、高等结构力学、结构工程塑性力学、流体力学、实验力学、振动理论、土力学与地基基础、钢结构、混凝土结构、工程施工与概预算、工程信号分析与处理、结构CAD、结构优化设计、现代测试技术等。

Taking the important equipment on an automobile wilding line,wilding jig as example,the work piece similarity model is presented based on work piece type,geometric and location information,and then a case database about wilding jig design is established.

以汽车焊接生产线上的关键工艺设备焊接夹具为例，提出以工件类型、几何及定位信息为基础的相似性评价模型，在此基础上建立了夹具设计事例库。

On the basis of analyzing the characteristics of geological plane maps, the notion of the wire frame model illustrated by outline of geological blocks is proposed to describe the geometrical form of complex faults and the relationships among them.

在分析平面地质图数据特点的基础上，为准确表达复杂断层的空间几何形态和相互之间的关系，引入了由地质形体的轮廓线构建而成的线框架模型概念；修正了边界表示法模型有效构建的基本条件；从地层与断层之间的关系角度详细阐述了有效构建线框架模型的方法；提出了以线框架模型为基础的断层面整体构建技术思路，解决了复杂断层面三维构建问题。

The paper reviews the development in the analytical theory of mechanical behavior of composites, pointing out the problems existed, presenting creatively the concept of yarn state, solving the descriptive problem of perform structure of any woven composites and laying the foundation for predetermining the elastic behavior of 3-d woven composites with computer. On the basis of yarn state, the relative cross section deformation theory is introduced, the yarn cross section deformation is studied, and the experiential formula is described in the paper on the basis of experiment. The crimping state of yarn is studied, the classical "straight warp view"is modified, and the crimp height value of crimped yarn is studied. At the same time, with shrinkage rate sine method, the paper proposes the idea which imitate the shape of crimped yarn. With the third power template curve, the paper describes the microgeometry structure of fabric, finding a brief and precise approach for the calculation of mechanical behavior of composites.

本文回顾了复合材料力学性能分析理论的发展，指出了存在的问题，创造性地提出了纱态概念，解决了任意结构机织复合材料预制件结构表征问题，进而为用计算机预报三维机织复合材料的弹性性能打下了基础；基于纱态概念，提出了相对截面变形理论，研究了纱线截面变形情况，在实验的基础上给出了纱线截变经验公式；研究了纱线屈曲状态，修正了传统的&地经纱直线论&，提出了以纱线缩率研究屈曲峰谷值的思想，同时以三次样条曲线拟合了纱线的卷曲形状，较好地描述了织物的细观几何结构，为复合材料力学性能的计算找到了一条既比较简便又比较精确的途径。

The theory and method is researched in this course for protracting mechanical engineering drawing with projection and seeking the space geometry problem. It is a compulsory technology foundation course for engineering undergraduate student , and also is the advance class of computer plotting base.

本课程是一门研究用投影法绘制机械工程图样和求解空间几何问题的理论和方法的课程，是工程类本科生的必修的技术基础课程，是《计算机绘图基础》的先修课。

On the basis of the theory of stretch distortion,according to the reality facts,with the geometrical figuration method,this paper affords the mathematical modules about the structural parameters,the dynamic parameters,the positional parameters,the mechanical parameters and the technical parameters of coil box,and programs a design software system .

本文在弹塑性弯曲变形理论的基础上，从实际情况入手，借助几何成形的方法，提出了计算热卷箱结构参数、运动参数、位置参数、力能参数和工艺参数的数学模型，并在此基础上编制了一套完整的热卷箱设计的计算机软件系统。

In fact, Computer Graphics indicate the developmental level of the Computer software and hardware, This is because Graphics have become the most important medium to transfer all kinds of information. Computer Graphics?research object is graphics, and the point , line and surface make up of the graphics ,In addition, During the real application, every graphics is made up of millions of the lines and curves, the speed and quality of the line and curve affected the implement of the whole graphics.

计算机图形学的研究对象是图形，而构成图形的几何要素就是刻画形状的点、线、面、体等，并且在具体应用中，每一幅图形都由成百上千条直线和曲线构成，这样对于每一条直线或曲线的处理速度和质量极大地影响着整幅图形的处理速度和质量，因此，对于计算机图形学基础算法的研究就具有重要意义，本文就是对计算机图形学的基础算法进行研究，包括直线和曲线的生成和裁剪算法以及基本象素的图形变换。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。