Gml ( geographic markup language ) is proposed by opengis consortium to facilitate the interoperation of webgis system , which is an xml specification for the expression of spatial geography information 地理标记语言gml ( geographymarkuplanguage )是opengis组织为解决webgis系统的互操作性而提出的,它是一个基于xml的用于表示空间地理信息的规范。
Map server , viewer & editor partially implementing the w3 standards for gml & svg with some extensions to aid in designing and maintaining the pstn cable networks ( and other networks ) in city scale 这是个实现了w3标准( gml和svg )的地图服务器、查看器和编辑器,并对上述标准进行了扩展,用于帮助设计和维护城区范围中的pstn电缆网络(即其他网络) 。
A map server , viewer & editor partially implementing the w3 standards for gml & svg with some extensions to aid in designing and maintaining the pstn cable networks ( and other networks ) in city scale 这是个实现了w3标准( gml和svg )的地图服务器、查看器和编辑器,并对上述标准进行了扩展,用于帮助设计和维护城区范围中的pstn电缆网络(即其他网络) 。
According to the criterions ( wms , wfs , gml ) of ogc , this paper studies the system structure of the distributed heterogeneous geography information exchange system and provides its working principle and implemeatation methods 摘要参照ogc的有关规范标准,对分布式多源地理信息交换系统体系结构模型进行了初步研究,给出了多源地理信息交换系统的工作原理和实现方法。
Through this paper , i discussed the gml - based webgis modle , and did some research in applicate the gml model in sea - affair relate system , and implemented the model in one software engineer . during the research , i integrated the application of the xml and java 本论文对基于gml的webgis模型做了理论探讨,对基于gml的水上航务应用模型进行了研究,并在工程开发中对其进行了应用。
Then gives a webgis browser / server distributed computing policy based on gml and step by step serving model ; 4 ) use gml and web application server technology , designs a webgis system structure based on the j2ee multilayer network structure 4 )以gml作为空间数据的描述和传输方式,结合应用服务器技术,基于j2ee多层网络应用体系设计一种符合开放式gis标准的分布式webgis系统结构。
Xml / gml - based webgis now is a new field , the research and development on it will not only bring forth great impact on traditional conception and traditional technology , but also greatly affect the industries of webgis 基于xml gml的地理信息系统是一个崭新的研究领域,其研究与发展不仅传统的webgis技术带来极大的冲击,而且对传统webgis方方面面的应用,及相关的产业将产生深远的影响。
In the research , we provide the cnsdtf as the original format , then build a gml schema to describe the structure of the cnsdtf . thus a xml which base on this schema can storage the data in a cnsdtf file 具体以cnsdtf (国家空间数据标准)为源空间数据格式,建立一个用gmlschema中的元素和属性来描述cnsdtf文件结构和格式的schema (大纲)文件,继而使用这个schema的xml文档就可以存储cnsdtf文件中的内容。
After analysed some data exchange formats , a new format for geodetic data exchange base on geographic markup language is given . user may put his various imfornation into a data sheet , which could be operated for his demand . 3 - 本文在分析了当前几种数据交换格式的基础上,提出了基于gml为大地测量数据交换格式,把各种信息都集成在一个表单里,用户根据自己的实际需求对得到的表单进行相关操作。
In the implement , use sax parser and xslt transformer in jaxp of sun java , to realize a wrapper which wrap cnsdtf to xml . finally , implement a archetypal system on the interoperability of spatial data which based on gml / jaxp 在具体的转换实现中,使用sunjava中的jaxp接口中的sax解析器和xslt转换器实现了从cnsdtf文件到相应的xml文件的包装,从而实现了一个基于gml / jaxp的空间数据互操作的原型系统。