漫游中

Lewis Carroll, author of Alice in Wonderland and Through the Looking Glass, was a great inventor of nonsense words.

爱丽丝漫游奇境》和《爱丽丝漫游镜中世界》的作者刘易斯·卡罗尔，是无实际意义词的伟大的发明家。

There are three problems to be solved:panorama generation,navigable room editing and browser design.

全景漫游技术中需要解决三个问题：全景图的生成、漫游空间的编辑和浏览器的设计。

Carroll's fairy tale "Ailisi Roams Wonder world To record", narrated girl Ailisi follows one to put on formal clothes' pinkeye rabbit roaming fairyland story, has run into many strange people and the matter, is first falls down from a rabbit hole, drinks can make one changes the small liquid medicines, also ate has been able to cause the human becomes the very big biscuit, did not stop changes between the giant and the pocket-sized person changes, about the stature size, was Ailisi continuously the very puzzled matter, was also she meets frequently in the fairyland, behind also had rabbit gentleman in family's liquid medicines and the small dessert,Right side the larva aculeata colonel's left side increased changes the small mushroom, Lisi said that she did not know who she was, one kind of height could not maintain 10 minutes, therefore who her indefinite oneself were.

卡罗尔的童话《爱丽丝漫游奇境记》，讲述了一个小姑娘爱丽丝跟随一只穿礼服的红眼兔子漫游仙境的故事，遇到了许多奇奇怪怪的人和事，先是从一个兔子洞里掉下去，喝能使人变小的药水，又吃了能使人变得很大的饼干，不停地在巨人和袖珍人之间变来变去，关于身材的大小，是爱丽丝一直很困惑的事情，也是她在仙境中经常遇到的，后边还有兔子先生家里的药水和小点心，毛虫上校的左边变大右边变小的蘑菇，艾丽丝说，她不知道自己是谁，一种身高不能保持10分钟，所以她不确定自己是谁。

In this article, mainly on the virtual reality 3-D technology in the area of roaming.

在本文中，主要介绍的是虚拟现实技术在小区三维漫游中的应用。

I had so much wisdom as to sail under false colours in this foolish jount of mine.

我在这次愚蠢的漫游中，却能机智地更名换姓。

It analysed the technology used in roaming engine and the method to modeling.It also designed a kind of work flow for geometry modeling and applied some of banausic technology for three-dimensional modeling;It also designed the engine by loading the virtual robot.Depending on the technology of collision detection,it developed a detection arithmetic for roaming;At last,it build the current roaming engine based on the model of virtual robot in the development environment of VC++ supported by MFC and WorldToolKit.

通过对虚拟现实相关技术进行研究，并分析了现有的主流漫游引擎和建模方法，设计了一种几何建模流程，并对多种三维建模优化技术进行应用；提出在虚拟场景中引入了虚拟机器人模型来设计漫游引擎，结合碰撞检测技术，提出了漫游检测流程算法；最后，运用VC++开发平台，基于MFC开发类库和WorldToolKit虚拟现实支持类库的支撑，实现了基于虚拟机器人模型的漫游引擎。

The application of virt ual reality in architecture is a very hot topi c. In a walkthrough system, a user can observe the architecture in different vie w interactively. This paper discusses the characteristics and requirements of a real time walkthrough system.

虚拟现实技术在建筑环境实时漫游中的应用一直是人们关注的热点，建筑师一般采用效果图来表达自己的设计思想，以前效果图都是手绘完成，花费时间长，不易修改。

Main works in this paper include:(1) Studies on pipelines network underground" spacial data model and data structure;(2) Analysing and extracting the data of cities" pipelines network underground;(3) Methods of development with OpenGL in VC++;(4) Measures of pipelines network undergrounds realizition, such as division of map layer, foundation of coordinate system, real-time roaming about and so on;Finally, works that has been done in this paper is summarized, and prospect of the problems should be gone deep into in future is made, integrated with the experience and deficiency in this paper.

论文所做的工作主要有：(1)地下管网空间数据模型与数据结构的研究；(2)管线源数据的分析与提取；(3)地下管线可视化的方法，例如图层划分、坐标系的建立、地图投影的定义、漫游中的实时处理技术以及地下管线的3D几何造型技术等；(4)VC++中OpenGL开发和运用的方法；最后对本课题所完成的实际工作和所取得的结论性成果进行了概括和总结，结合在研究过程中的体会和不足，对以后的研究中需要进一步深入研究的几个方面做了一个简单的展望。

Perhaps, in his previous days' wanderings, he had edged away too far to the left.

也许，在前些天的漫游中，他走得过分偏左了。

The revenue of international roaming business is not as high as other sectors of telecommunications business; however, we found that the international roaming business meets the curve of Long Tail. After analyzing the three forces of forming a long-tail market, we discovered that international roaming itself is a virtual e-commerce to provide pure digital products for users and its marginal cost of inventory and marketing is nearly zero. In addition, the outbound or inbound roamers can easily use the roaming services through recommendation and searching machines under the structure of international interconnection and bilateral agreements.

国际漫游业务因性质上的缘故，在整体电信服务营收占比并不高，本非属热门商品之范畴，但透过「长尾理论」中形成长尾市场三股力量的分析，发现行动通信业务本身具有虚拟电子商务型态，得以提供纯粹数位商品，使得库存和配销的边际成本趋近於零，应证了「配销工具大众化」的条件；另藉由国际电信间的网路互连以及漫游商业协议下，使得出境或入境漫游者皆得透过推荐与搜寻方式使用原有之电信服务，亦应证「连结供给和需求」条件的存在。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。