简化

Has a proposal during two durations receives the attention, is actually that should restore the traditional character, I thought that now the fait accomplice is so, I acknowledged in the past simplified character time has some wants its alphabetization this kind of intention, but we cannot neglect to other question, it really has other goal is its popularization, indeed this simplified character also complied with simplification of Chinese characters this kind of tidal current, is the folk folk simplification, the people are must simplify it, must universalize, popularization.

恢复繁体字的风波还能持续多久？在两会期间有一个提案是备受关注，那就是究竟该不该恢复繁体字，我觉得现在既成事实是如此，我承认当年简体字的时候是有一些想把它拼音化的这样一个意图，但是我们不能忽略到另外一个问题，它的确有另外一个目的是把它通俗化，的确这个简体字也顺应了汉字简化的这种潮流，就是民间的民间简化，人们就是要把它简化，要普及化，通俗化。

This thesis contributes to geometry compression in the following aspects: Proposes a method of progressive spherical mesh parameterization based on local parameterization by directly projecting the deleted vertices to its neighborhood. Based on spherical mesh paramterization, an adaptive subdivision remeshing method by progressivly redistributing of sampling points is proposed, by this means, the main geometry information of the original mesh can be captured with only a small amount of samples, it can also be used in mesh simplification. By regarding attributes binded on mesh vertices as geometry signals and transferring them onto a uint sphere by means of spherical mesh parameterization, meshes with different attributes are compressed with spherical wavelet successfully with high compression rate. As a kind of lossy geometry compression technique, two mesh simplification algorthimes are also presented in this thesis.

归纳起来，本文的主要贡献有：提出了以直接投影局部参数化方法为基础的网格累进球面参数化方法；在网格球面参数化方法的基础之上，提出了一种基于累进优化布点方案的网格细分采样方法，该方法可以用很少的采样点就可以捕获到网格的主要特征，因此我们也将其用于后面的网格简化工作当中；通过将网格顶点上定义的各种属性看成几何信号，并以网格球面参数化为手段将几何信号迁移到单位球面上，从而成功地实现了用球面小波对各种几何信号的压缩；作为一种有损压缩方法，本文还提出了基于统一距离的网格简化算法和基于重采样的网格简化算法。

You can wander across prairie country that has the desolating immensity of the ocean:这句话简化一些就相当于说prairie country that is as desolating and immense as the ocean.

英语经常用抽象名词；而汉语正好相反。翻译的时候，按照简化的句子翻译就行了："平原像荒凉寂寞的大洋"。不管句子多么复杂，都可以这样处理。

At first, it analyses the visibility processing of complex scene, including: spatial partition technology BSP, quadtree, octree and equational octree which can optimize scene, category of quick visibility estimation algorithm in the 3D scene, portal which can accelerate rendering, level of detail and mesh simplification based on quadric error metrics used to simply models in 3D scene.

首先分析了复杂场景的可视化处理，包括优化场景渲染的空间剖分技术：BSP树、四叉树、八叉树、均分八叉树；其次是三维场景快速可见性判断算法的分类，可加速渲染的入口技术；最后是用于三维场景中模型简化的两个算法：层次细节模型简化技术和基于视点的二次误差度量网格简化。

Although detail removal can be carried out in the process of filleting operation and its inverse operation, entities such as vertices, edges and faces with which the simplification operations handle directly lack engineering features, so that the simplification fails to satisfy all the needs of engineering applications.

通过"弧化-还原"，虽然可以实现几何形体的简化，但是这种几何简化是在点、线和面低层次的几何元素上进行的，几何简化的工程意义不明显，难以保证实际应用中的分析几何模型简化的有效性。

Now the triangular mesh model simplification algorithm based on edge collapse is very complex.Combining Garland's quadric error metrics algorithm and Hoppe's progressive mesh algorithm,a new algorithm for triangular mesh dynamic model simplification based on cost function is proposed in this paper.

目前基于边折叠的三角网格模型简化算法边折叠计算复杂，没有有效进行动态简化，结合Garland的二次误差度量算法和Hoppe的累进网格算法，提出了基于代价函数的三角网格模型动态简化算法。

According to the features and analysis of a howitzer ,some components are considered as rigid bodies and some as springs.

根据某火炮的结构特点和分析要求，把一些工程元件简化成刚体，另一些工程元件简化成弹簧，用有限多个质量、转动惯量、弹簧和阻尼形成一个离散的参数系统，从而得到火炮系统的简化模型。

The main research contents are stated asfollow: 1. Simplified analysis method of space grids structuresDouble-layer space grids have been assumed as sandwich plate, and are analyzed bythe nontraditional theory of plate with consideration of shear deformation and threegeneralized displacements. Using the theory of energy variation, simplified methodsfor bending, stability and vibration analysis of double-layer space grids have been putforward based upon the idea of split rigidity. The formulas for calculating internalforces, displacements, critical load and natural frequency have been given out. Set thestable cables and bearing cables in hyperbolic paraboloid cable nets are all replaced bytruss-cable to form truss-cable nets structures. Natural vibration analysis method fortruss-cable nets structures has been put forward using the energy variation method andRayleigh method.

主要内容包括： 1、空间网格结构静动力简化分析方法把网架结构简化为夹层板，采用考虑剪切变形的具有三个广义位移的平板弯曲理论进行分析，基于分解刚度思想利用能量变分原理提出了网架结构弯曲、稳定与振动分析的简化计算方法，给出了位移、内力、屈曲临界荷载和固有频率的计算公式；将双曲抛物面索网中的稳定索与承重索均用劲性索代替形成劲性索网结构，基于能量变分法和Rayleigh法给出了劲性索网结构固有振动分析的简化计算公式。

Moreover, the prototype provides multi-levels simplification to create LOD models according to users' conditions, such as hardware, system configuration, for scarifying their requirements. It facilitates creating LOD models of complex building in Virtual Geographic Environments.

通过提供多种参数选择，该原型系统不仅能够按照用户指定的感知简化策略执行各种不同等级的模型简化，创建出满足用户需要的简化模型，而且可以按照用户指定的简化阈值进行简化，为虚拟地理环境建设中的复杂建筑物LOD建模提供了一种新工具。

In order to satisfy the user cognitive demands,the simplification map are used to provide the whole route information which includes only simplification route and the landmarks on the way,and the map display contents are visualized depending on the placename"s ranking;the paper also studies the different simplify principles from traditional map synthesis,that is ,releases the veracities of route geometry elements such as length and angle for the sake that the relative user"s task cognitive informations are displayed with clarity and legible on the limited screen;researches on the route simplify algorithms that preserving the topology-coherence.the paper exploits the application software for LBS navigation service.

在满足用户当前认知需求前提下，提出用简化路线图提供整个路线信息，简化图中包含已简化过的路线和路线两边的地标，而且地图内容可视化依据于地名等级；研究不同于传统制图综合原则的路线认知简化原则，即放松路线中几何元素的准确度，以确保与用户任务相关的道路认知信息最大清晰度地展现在有限屏幕上；研究保持拓扑一致性的快速路线简化算法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。