查询词典 regular polygon

Cross section is a set of polygons and for this reason some relative algorithms for polygon are studied firstly. New algorithms for orientation and inclusion test for simple polygon are proposed. And Ghosh's convex hull algorithms for simple polygon and convex polygons, Subramanian's triangulation algorithm for arbitrary planar domain and O'Rourke's intersection algorithm for convex polygons are modified to make them more robust.

断层轮廓为简单多边形，首先对多边形的一些相关算法进行了研究，提出了一种判断简单多边形方向及点在多边形内外的新方法，改进了Subramanian的平面多连通域的三角划分方法、Ghosh的多边形的凸包及多个多边形的凸包算法和O'Rourke的凸多边形的求交算法。

Coordinate sequence method is made up of the instruct information of polygon boundary x, y coordinate. It is the easiest polygon vector encoding method. The file structure of this method is easy, but because of the polygon boundary has stored two times, it will produce data redundancy, moreover, short of neighbor threshold information; Tree index encoding method make all the boundary points digitizing, store the coordinate sequence, connect the point index to boundary line, and then connect the line index to other polygons, so as to the tree index structure has came into being. It eliminates neighbor polygons boundary data redundancy problems; Topology structure encoding method is a method which by setting up a complete topology relationship structure, resolve the neighbor threshold and island information process problem. However, it makes arithmetic more complicated and makes database bigger.

坐标序列法是由多边形边界的x，y坐标对集合及说明信息组成，是最简单的一种多边形矢量编码法，文件结构简单，但多边形边界被存储两次产生数据冗余，而且缺少邻域信息；树状索引编码法是将所有边界点进行数字化，顺序存储坐标对，由点索引与边界线号相联系，以线索引与各多边形相联系，形成树状索引结构，消除了相邻多边形边界数据冗余问题；拓扑结构编码法是通过建立一个完整的拓扑关系结构，彻底解决邻域和岛状信息处理问题的方法，但增加了算法的复杂性和数据库的大小。

In this paper, a lot of research works of algorithms of mining CAD has been done. Many important mine specialty graph operation algorithms have been put forward. The main results are as follows: polygons cut out algorithm, two close polygons mutual, merge and subtract algorithm, polygon vector fill, any vector polygons area calculating and sequence polygons or multifold which has the direction and region area calculating, curve smoothing, graph element search for any region, graph element attrib collect in any region, parallel polygon or vector intersection-point push out or pull in, ore reserves and grade calculating for any type polygon, mine spatial data searching and boundary line tracking and automatic link algorithm etc.

论文在矿山图形算法研究方面做了大量的工作，提出了许多有价值的矿山专业图形运算算法，主要算法有：多边形裁剪算法、闭多边形的加、减、并算法、多边形的矢量填充算法、任意有向多边形、有向多连域、有向多边形序列面积算法、多种曲线光滑算法、任意区域的图元搜索算法、任意区域图元属性提取算法、多边形平行外推/内缩算法、任意多边形储量品位计算、矿山空间数据搜索算法、界线的自动追踪和连接等。

The sixth part: Studies on the dynamic changes of soil retention function value of ecosystem in YUYANG District. Utilized ERDAS8. 5 to interpret the remote sensing image and get LUCC data and vegetation information of YUYANG District. Utilized R2V5. 5 to digitize administrative map, topographic map, vegetation picture, soil distribution map and meteorological website map. Utilized ARCINFOR8. 3 to change every digitization layer to the same projection, to generate Tyson polygon, to structure DEM and do vector polygon overlay. Utilized ARC VIE W3. 3 to obtain the grid data topographic slope and slope length from DEM data of YUYANG District, and then, turned every coverage layer into grid layer and do grid polygon overlay to gain data about dynamic changes of value of soil retention of ecosystem in YUYANG District, at last, the author analyzed the features of the spatial-temporal changes and its reason.The seventh part: Studies on the dynamic changes of fixing drifting sand against wind function value of ecosystem in YUYANG District.

第六部分：榆阳区生态系统土壤保持功能价值动态变化研究；利用ERDAS8.5对遥感数据进行解译获得榆阳区土地利用数据和植被信息，利用R2V5.5数字化榆阳区政区图、地形图、植被图、土壤分布图及气象站点分布图，利用ARCINFOR8.3对各数字化图层进行投影转换、泰森多边形生成、DEM构建和叠加分析，利用ARCVIEW3.3从DEM数据中获取榆阳区的坡度、坡长面域数据，并将上述各图层格网化，然后通过栅格图层叠加分析和代数运算获取榆阳区生态系统土壤保持功能物质量和价值量时空动态变化数据，最后分析了其变化的时空特点及形成原因。

NParticle to polygon mesh conversion: Static and emitted Blobby Surface nParticles can be converted to polygon meshes. nParticle output meshes can be edited and manipulated like any other polygon.

n粒子转换为多边形网格：静止和发射的blobby surface n粒子都可以转换为多边形网格。n粒子输出的网格可以想任何其他多边形一样被编辑和操作。

A method of polygon simplification based on Strip-Tree in scaleless GIS is presented in this paper through an all-sided analysis of this problem. Maintaining the correctness of the polygon layer's topoloty, it simplifies the polygon layer according to the output scale.

在对此问题进行全面分析的基础上，提出了一种基于Strip-Tree的多边形图层化简策略，在保持输出数据拓扑结构正确的前提下化简多边形图层，且保持了较高的时空效率。

Based on the existed theory of mareoids and fuzzy matroids, this thesis studies the closed regular fuzzy matroid and its fundamental sequence, the fuzzy base and its algorithm of closed fuzzy matroids, the fuzzy circuit and its algorithm of closed fuzzy matroids and so on. The main contributions of this thesis are as follows: 1 The necessary and sufficient condition of closed regular fuzzy matroid and a property of its fuzzy dual matroid are found by studying some properties of closed regular fuzzy matroid. 2 By studying some properties of fuzzt bases of closed fuzzy matroid, the necessary and sufficient condition of judging fuzzy bases of closed fuzzy matroids and some corollaries are found. In the end, an algorithm of obtaining a fuzzy base is given. 3 By studying some properties of fuzzt circuits of closed fuzzy matroid, some necessary and sufficient conditions of using its fundamental sequence to express fuzzy circuits are found. An algorithm of obtaining a fuzzy circuit is given. 4 By studying the fundamental sequence of closed regular fuzzy matroid, some necessary and sufficient conditions of fundamental sequence of closed regular fuzzy matroid are found.

本文在现有拟阵和模糊拟阵理论的基础上，研究了闭正规模糊拟阵及其基本序列，闭模糊拟阵的模糊基及算法、模糊圈及算法等内容，现分述如下： 1研究了闭正规模糊拟阵的一些性质，得到了闭正规模糊拟阵的充要条件及其模糊对偶拟阵的一个性质； 2研究了闭模糊拟阵模糊基的性质，找到了闭模糊拟阵模糊基的充要条件和几个推论，最后还给出了求模糊基的算法； 3研究了闭模糊拟阵模糊圈的性质，找到了用基本序列来表达模糊圈的几个充要条件，并给出了求模糊圈的算法； 4研究了闭正规模糊拟阵的基本序列，找到了闭正规模糊拟阵的基本序列的几个充要条件。

After regular to faintness library matrix ω undertakes bizarre value is decomposed, the basis is given threshold value abandons bizarre value appropriately, express u σ what get matrix ω approximatelyv(kt, undertake to u and v the standard is mixed processing, use protruding to wrap a technology to undertake is not enjoying a sex and normal state sex processing, use the u after processing,σ and v generate new regular library before after subject function is mixed matrix, library of new and tectonic regulation, the function of new regular library and former regular library are approximate, but regular number decreases significantly.

本篇论文剩余部分，请联系九旭论文代写www.991lw.com网站客服qq：论文写作：1210196822 论文发表： 739878127 论文咨询：1210196822②qq.com，联系电话：013155803009。关键词：——模糊规则库；奇异值分解；凸包；约简；梗概：对模糊规则库后件矩阵ω进行奇异值分解，根据给定的阈值适当舍弃奇异值，得到矩阵ω的近似表示uσv(kt，对u和v进行标准和处理，并利用凸包技术进行非负性和正态性处理，利用处理后的u，σ和v生成新规则库的前件隶属函数和后件矩阵，重新构造规则库，新规则库的功能和原规则库近似，但规则总数显著减少。

Running hand has been one kind of chirography between upright cursive script and regular script , its characteristic has been to have wielded certain grass law , the part field has facilitated the regular script stroke of a Chinese character , has changed the regular script pen shape , grass having spent the regular script structure.

内容摘要：行书是介乎草书和楷书之间的一种书体，它的特点是运用了一定草法，部分地简化了楷书的笔画，改变了楷书笔形，草化了楷书的结构。

One of the epicycle of economic globalization and early economic globalization most important differences, is builds up a set to the global market open international economics and trade regular system: Including the WTO multilateral economics and trade regular system, IMF and the World Bank leadership's financial opening and the aid development's global regular system, the interstate system regular system which as well as the regional economies integration organization establishes.

本轮经济全球化与早期的经济全球化最重要的区别之一，就是建起一套对全球市场开放的国际经贸规则体系：包括WTO的多边经贸规则体系，IMF和世界银行主导的金融开放与援助发展的全球规则体系，以及区域经济一体化组织建立的跨境制度规则体系。

We have something to do in the new stage.

在这段崭新的时期中，我们有一些要做的。

The difference between tourism decision-making under uncertainty and risky tourism decision-making is indistinctive.

其中不确定性旅游决策和风险旅游决策的界线比较模糊，两者的区分是相对的。