查询词典 texture mapping

For regular topology surface, intermediate surface local texture mapping are used; for irregular topology surface, subdivision surface local texture mapping are used. So different topology surface using different texture mapping methods can solve the contradiction between texture effect and processing speed when they are dealt with by single method. The three judge conditions of texture distortion in the process of mapping onto the sphere surface are discussed and the exiting algorithms of mapping are analyzed, the new algorithms of mapping onto the sphere surface are presented. In order to enhance the realistic of graphics, a new function of wood texture is presented. OpenGL is also introduced in this papers and some realization examples of texture mapping based on OpenGL under the environment of VC++ and POV-RAY are presented in some chapters.

对于简单拓扑表面，利用改进的两步纹理映射，对于复杂拓扑表面利用新的面片分割算法，初步解决了颜色纹理中速度与走样之间的矛盾；通过对球面纹理时纹理不变形的三个判断条件的研究，分析了现在各种球面纹理映射算法，并在此基础上提出了一种基于等面积的半球面纹理映射算法，明显减少了球面纹理的纹理变形；针对现有的木纹纹理中，两种表示木纹的颜色差距表现出的颜色突变问题进行研究，提出对这两种颜色进行线性插值或二次插值，使生成的木纹纹理颜色更加连续，更加逼真；在VC++环境下，通过调用Open GL的图形库及在Pov-Ray软件环境下，实现了参数化纹理、球面纹理、凹凸纹理及木纹纹理等各种算法。

Based on the summarizing of the exiting algorithms of the texture mapping and antialiasing, this paper goes deeply into the basic theory and processing of texture mapping. The texture compress algorithm which can satisfy the need of the memory and time is given for the stochastic sampling in the inverse texture mapping; the geometry transformation in the texture mapping are discussed and the concepts of the unitary parametrization and the patch parametrization is proposed, some kinds of the unitary parametrization methods of parametric surfaces and the geometry transformation in the patch parametrization are also presented; in order to solve the aliasing in the parametrization of intermediate surface-sphere in two-part texture mapping, an area-preserving transformation is presented also; to improve the quality of the graph the aliasing in the texture mapping is analyzed from the aspect of signal process, and the modified summed-area tables algorithms is proposed; the distortion of the scanline conversion algorithms under perspective transformation is analyzed and the proper interpolation algorithm is presented so the aliasing problem of the polyhedral object after the unitary parametrization is efficiently solved.

本文在总结现有的纹理映射和反走样算法的基础上，深入研究了纹理映射的基本原理与过程，根据反向纹理映射对纹理随机采样的特殊要求，提出了一种可满足存储空间和寻址时间的纹理压缩存储算法；通过对纹理映射中几何变换理论的进一步深入探讨，提出了整体参数化和面片参数化的概念，并给出了参数化曲面的各种整体参数化方法和面片参数化的几何变换形式；针对现有的两步映射算法所存在的中间曲面—球面的参数化问题，提出一种等积映射方法，较好地实现了由非参数化面片拼接而成的多面体表面的纹理映射；从信号采样的角度深入分析了纹理映射中走样产生的原因，提出了改进的区域求和表算法，使图形生成的效果有所提高；还分析了一般的扫描线算法在透视变换中所存在的问题，提出了一种正确的插值算法，从而解决了整体参数化后多面体表面纹理映射的几何变形问题。

At noon, the State Bureau of Surveying and Mapping party secretary TSUI Tak Ming and other Board members and the entire team of Chen Junyong Academy of Sciences Chinese Academy of Sciences, and the State Bureau of Surveying and Mapping agencies all cadres of workers and pre-entry into the Chinese National Innovation Base Surveying and Mapping Surveying and Mapping Bureau of Management Information Center, National Mapping Agency map Technical Review Center, the State Bureau of Surveying and Mapping Development Research Center of Surveying and Mapping, the National Bureau of Surveying and Mapping headquarters service center, as well as the base for all the cadres and workers in new construction units on behalf of Surveying and Mapping innovation base in China to celebrate the completion of China's innovation base mapping stationed celebrate the 60 anniversary of New China , to celebrate the Mid-Autumn Festival.

中午，国家测绘局党组书记、局长徐德明等局班子全体成员及中科院陈俊勇院士，与国家测绘局机关全体干部职工和先期进驻中国测绘创新基地的国家测绘局管理信息中心、国家测绘局地图技术审查中心、国家测绘局测绘发展研究中心、国家测绘局机关服务中心全体干部职工以及基地建设单位代表在新落成的中国测绘创新基地内，欢庆中国测绘创新基地落成进驻，喜迎新中国60华诞，共庆中秋佳节。

Two-dimensional texture mappings are summarized in this paper including Catmull algorithm and Blinn algorithm, two-step texture mapping, environment mapping and bump mapping. Moreover, a new method of regional texture mapping based on intermediate surface is presented and a new algorithm is promoted to reduce texture distortion in the process of mapping onto the sphere surface.

在二维纹理方面，本文讨论了适用于参数曲面的Catmull算法与Blinn算法，适用于一般曲面的两步纹理映射技术，现已广为应用的环境纹理映射技术及凸包纹理映射技术，还分析了纹理映射的几种快速反走样技术。

the digitized mapping technique is to combine the field data collection system with the computer assisted mapping system in surveys by computer technology.it aims to realize the information collected and processed digitally and automaticaity.the digitized mapping technique can cut short the working time,lighten the labor intensity and enhance the precision of the productions.the system consists of three parts,such as data input,data processing and data output.the survey-record digitized mapping technique is widely used in the digitized mapping working pattern.for its superiority over traditional plane-table mapping in accuracy and efficiency,the large scale digital mapping is becoming more and more popular.compared with traditional analogue mapping,digital mapping has more quality control pivotai points,and its contents and methods are more complex.with the appearance of new technology gps ,the coordinate of different levels controlling points may be surveyed in high precision and it has been applied widely in topographic survey.the operation process of gps electronic tachometer is introduced and its application in topographic survey is br

计算机应用论文，计算机论文， rtk ，全站仪，数字测图，地形测量， gps论文摘要：数字测图是在测量工作中利用电子计算机技术将野外数据采集系统与内业机助制图系统相结合，其目标是实现信息采集处理的数字化、自动化、信息化。数字测图可以缩短作业时间，减轻劳动强度，提高成果精度。数字测图系统主要由数据输入、数据处理和数据输出3部分组成，数字测图作业模式中测记式数字测图应用最为广泛。大比例尺数字测图正以其测图精度高，成图速度快等优势逐步的取代传统的，以平板仪为主的模拟测图。与传统的模拟测图相比，数字测图的质量控制关键点更多、内容与方法更为复杂。gps 新技术的出现，可以高精度并快速地测定各级控制点的坐标，在地形测量中已得到广泛地应用。本文介绍了gps 配合全站仪的作业流程，简要阐明了其在地形测量中的应用。在利用实测数据成图的过程中，解决一些常见的问题，并给出解决的办法及依据，同时给出一些有益的结论，以适应实际使用的需要。

Athena series boast natural and graceful styles represented by the combination of solid-color tiles of different colors and luster, like a concise and avant-garde abstract painting; Galaxy Stone series are endowed with artistic quality according to their natural patterns and gorgeous colors, and they are also safe and environmental friendly; Diamond series enjoy super hardness and diamond quality, crystal-clear and natural texture, excellent abrasion resistance and extremely low water absorption; Emerald Stone series are the perfect combination of outside beauty and inside merits thanks to their rock-style natural texture; Magic Crystal Jade series are as lucid as jade, show attractive texture and transparent crystal phase as high as 90%; Fuji White series are made with original two-in-one production technology, and enjoy smooth surface texture, for the construction of an artistic space; Lava Stone series comprise multiple raw materials, show special charm and exclusive styles; Snow Crystal Stone series show the newest ceramic styles and cater for the taste of the masses; Sky River Stone series present diversified noble and elegant texture, free flowing as clouds; Lucky Star series enjoys fine and flowing texture and glittering surface due to the scattering of numerous micro-crystals; Rainbow Stone series present us fine texture and soft color and luster, being hard and stain resistant; New Generation series are made with multi-layer material distribution technique, enjoying lively and smooth texture and distinct layers.

利家居不断设计出新颖的产品，以尊贵品位、卓越超群为理念，推出雅典娜系列雍容大器张显贵族气派不同色泽纯色砖搭配铺贴有如一幅简约而前卫的抽象画、银河石系列艺术手法造就陶瓷艺术感观其图案自然色彩绚丽安全环保、金刚石系列金刚硬度钻石风范其晶莹剔透纹理丰富自然坚韧耐磨吸水性极低、翡翠石系列外观美感与内在特性的完美结合其产品提炼岩石纹理效果清晰随意、幻晶玉系列如玉晶透张显纹理动人合成透明晶相高达90%、富士白系列独创合二为一的生产工艺专体纹路流畅构筑艺术空间、熔岩石系列多种原料融为一体极具韵味展现与众不同的风格之美、雪晶石系列全新的陶瓷特色迎合大众品味其产品融洽淡雅融合如写意山水、天河石系列玉脉纵横华贵端庄纹理自由随意似云影飘逸潇洒飘扬美伦美焕、幸运星系列流动细腻晶莹灵动其面层微晶颗粒晶莹圆润变化万千、彩虹石系列形式之美完美体现其纹理细腻色泽柔和采用顶尖工艺坚硬防污、风生水起系列采用多层布料技术纹理生动流畅层次分明，等多系列多款式完全玻化砖。

In 2010, Hebei Province Survey and Mapping Bureau of the overall work requirements are: to further strengthen the surveying and mapping work, and continue to carry out special rectification geographic information market, establish and improve long-term mechanism; the completion of "Eleventh Five-Year" plan provincial base mapping to achieve the basic topography of 1:1 million, map covering the whole province; do a good job,"Homeland environment and disaster monitoring State Key Laboratory of Surveying and Mapping Agency," the construction and development, promoting surveying and mapping scientific and technological progress; raise the "Integrated Service in Hebei satellite positioning system," the promotion and application; the preparation of good levels " Shier Wu "basic surveying and mapping plan, focus on promoting the" digital Hebei "," Digital City "geo-spatial framework of the building, do a good job in Shijiazhuang" National Digital City Construction pilot "demonstration project construction, improve the level of public services, surveying and mapping for economic development to provide timely Effective mapping support.

2010年，河北省测绘局总体工作要求是：进一步加强测绘工作，继续开展地理信息市场专项整治，建立健全长效机制；完成"十一五"省级基础测绘规划，实现1：1万基本地形图全省覆盖；抓好"国土环境与灾害监测国家测绘局重点实验室"的建设与发展，推进测绘科技进步；加大"河北省卫星定位综合服务系统"的推广应用；编制好各级"十二五"基础测绘规划，着力推进"数字河北"、"数字城市"地理空间框架建设，抓好石家庄"全国数字城市建设试点"的示范工程建设，提高测绘公共服务水平，为经济发展提供及时有效的测绘保障。

Over the past few years, we have adhered to the margins pilot, while summing up the experience in the dark improve, and we invite the four mapping units, according to the "phased implementation of the subregional mapping and cadastral mapping project, a map, several related databases" for the pilot, and gradually establish and perfect the mapping system : First, develop Fuzhou mapping management, Fuzhou administrative districts in operational and management activities in the real estate mapping units and individuals, thus greatly enhancing the management of our real estate mapping, mapping for the development of the cause.

为加强房地产产权产籍管理走出了一条新路。我市房产测绘体制改革是伴随着社会主义市场经济的建立和发展逐步铺开的。80年代中期，我市房屋产权登记开始恢复时，尚未建立专业的测绘队伍，在房屋产权确认中作为重要依据的图、档以及房屋面积都是由产权登记人员用皮尺到现场手工丈量确定。1985年房屋普查结束后，原普查人员组建成市测绘处，负责全市房产测绘工作，人员经简单培训后上岗，测量停留在手工皮尺操作上，技术没有规范，人员缺乏专业知识。

Firstly, we introduce the technology of seismic geometric attribute for fault identification detailedly at home and abroad. Secondly we study the coherence, texture,curvature attribute and tricolor display technology of RGB to identify fault; In the part of coherence,we compare the traditional algorithms with model and actual data,mainly study the geometric structural tensor and wavelet multi-scale sub-frequency coherent algorithm; In the part of texture attribute, we introduce texture energy, texture contrast, texture entropy and texture homogeneity attribute.By merging texture attributes of different directions,the effect are more clear; In the part of curvature attribute,we study and analyze fractional-order curvature attribute's extraction and its application in fault identification; The RGB display technology mainly introduces how to merge multi-attributes in order to getting more richer and more clearer information.

首先具体先容了地震几何属性识别断层技术的国内外研究现状；然后分别研究了相干属性、纹理属性、曲率属性和RGB三原色显示技术来识别断层；其中相干属性通过模型和实际资料对传统相干体算法进行了对比，重点研究了几何结构张量相干体算法和小波多标准分频相干体算法；纹理属性主要先容了纹理能量、纹理对比、纹理熵和纹理一致性属性，通过对不同方向的纹理属性进行融合，效果更清楚；曲率属性重点分析了分波数曲率属性提取及其在断层识别中的应用；RGB三原色显示技术则主要先容了如何进行多属性融合来或得更丰富、清楚的信息，在此基础上开发了基于。

It has six kinds of texture: felt-like cryptocrystallineballistic texture, fascicules ballistic texture, radiated ballistic texture, porphyritic texture,gyrated ballistic texture, replacement remnant ballistic texture.

通过镜下分析，栾川软玉的主要矿物成分为透闪石，一般含量在 95%以上，结构可分为毛毡状显微交织变晶结构、纤维束状变晶结构、放射状变晶结构、似斑状结构、旋转结构、交代残余结构。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。