GML和SVG技术在便携式电子导游系统中的应用——以南岳电子导游系统为例

信息技术、移动计算设备以及WebGIS的发展为电子导游系统的设计与实现带来了新的思路和方法。但是WebGIS在数据组织、数据共享和矢量图形显示等方面还存在问题,在WebGIS中应用SVG和GML技术和规范在一定程度可以解决这些问题。基于GML和SVG的南岳便携式电子导游系统采用包含终端层、应用服务层和数据服务层的B／S结构,GML负责地理数据的组织,SVG控制地理数据的显示。通过对系统评价发现基于GML和SVG的电子导游系统具有运行效率高、交互性强、开发定制灵活等优点。     

基于OGC Web服务规范的Web GIS研究与实现

目的:利用网络上已建立的空间数据资源和GIS应用,构建自己的Web GIS系统.方法:GML作为数据交换标准和OGC GIS Web服务实现GIS互操作.结果:利用deegree服务器,建立了一个基于WMS和WFS的Web GIS系统.结论:基于GML和GIS Web服务的Web GIS实现了空间数据的无缝集成和GIS功能上的互操作.     

基于 GML 的多源异构数据交换技术研究

以滇池（湖泊）流域生态建设与生态文化数字化信息系统开发为背景,在研究多源异构数据交换关键技术的基础上,利用标准的 GML 数据格式对 SHP 和 MIF 两种不同格式的空间数据进行集成应用,解决了传统地理信息系统存在交互性差的问题,从而实现对空间数据的互操作。实验验证表明,GML 空间数据格式能准确表达两种异构数据的集成结果,从而确定 MIF 和 SHP 两种数据格式成功集成到 GML 框架。     

查询网页与网页发布

Visual FoxPro 6.0提供的实用工具“WWW搜索页”能帮助用户在Web浏览器中实现对VFP中数据的查询,也可以从指定的表中检索记录,并创建一个结果页,显示查询检索的记录;“Web发布”可以方便地将数据发布在Web页面上,通过在网上随时显示数据库中的记录数据。     

基于MATLAB Web Server的远程仿真系统开发

在介绍Matlab Web Server的工作原理的基础上，结合通信原理远程仿真程序的开发实例，详细说明了基于Matlab Web Server的远程仿真系统的关键方法和技巧。仿真系统用户通过Web浏览器在远程输入数据，提交给MATLAB Web Server上的MATLAB运行，最后将计算结果和图形直观地显示在浏览器上。     

动态可伸缩向量图的设计与实现

在对XML及SVG技术进行了研究和总结的基础上,设计了一个基于后台数据库进行动态SVG管理的应用.该应用通过程序在后台数据库数据和SVG的文本数据(XML数据)之间建立联系,实现了SVG图像基于后台数据库数据变化的动态管理.设计和实现结果表明:基于数据库实现Web上SVG图像的动态管理是可行的.     

SVG——基于XML的图形设计

SVG是一种基于XML的用来描述二维矢量图形的规范.使用SVG可以在网页上显示出各种各样的高质量的矢量图形,并支持交互和动画.     

关于使用ASP．NET设计网站的初步研究

初步研究了如何使用ASP．NET设计网站。ASP．NET作为一种全新的动态网站开发技术，通过大量使用组件技术，将Web浏览器与Web服务器之间的网络通信完全的包装起来。在ASP．NET中，动态网站开发技术已经变为利用组件搭建“基于Web的应用程序”了。     

利用控制台语句实现JavaScript代码单元测试研究

运行和调试JavaScript代码的主要工具是Web浏览器,现代Web浏览器一般包含调试JavaScript代码的控制台。JavaScript代码运行中的错误信息、Ajax调用、性能分析结果、命令行执行结果都会显示在控制台界面上。Firefox浏览器的Firebug提供了很多手段,可以将JavaScript代码运行中的信息输出到Firebug控制台。通过灵活使用控制台语句,可以方便地实现对JavaScript代码的单元测试。     

浅析Authorware 6.0制作Web浏览器

介绍了利用Authorware6．0制作Web浏览器的功能、流程和意义，并对该编辑软件制作多媒体课件的优势进行了探讨。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.