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地图符号服务与地图服务的耦合

焦东来,张海涛,闾国年,姜杰(南京邮电大学地理与生物信息学院, 南京 210046;苏州市数字城市工程研究中心, 苏州 215021;南京师范大学虚拟地理环境教育部重点实验室, 南京 210046)

摘 要
为了实现地图符号在地图服务(WMS)中的应用,达到灵活定制WMS可视化效果的目的,从支持WMS的图层样式描述规范(SLD)入手,通过对SLD和WMS的分析,研究网络地图符号的发布方法,设计地图符号服务框架,提出了基于SLD,地图符号服务与WMS的耦合方法,以解决基于WMS的WebGIS应用中无法通过符号改变地图可视化效果的问题,实验结果表明该方法可以有效地关联地图符号服务与WMS,实现了WMS可视化效果的灵活定制。
关键词
Coupling of map symbol web service and web map service

Jiao Donglai,Zhang Haitao,Lv Guonian,Jiang Jie(School of Geography and Biological Information, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;Suzhou Digital City Engineering Research Center, SuZhou 215021, China;Key Laboratory of Virtual Geographic Environment of Ministry of Education, Nanjing Normal University, Nanjing 210046, China)

Abstract
We want to apply map symbols in the web map service(WMS), and allow a flexible customization of the WMS visualization. To achieve this, we studied the Styled Layer Descriptor implementation specification(SLD), which support WMS, work on the publishing method for map symbols for the web, and worked on the analysis of WMS and SLD. We designed the structure of the web map symbol service, and put forward the coupling method between web map symbol service and WMS based on SLD, in order to solve the problem of not being able to change map style by WMS on WebGIS. We validated our metkodby a prototype system. The experiments show that this method can effectively associated map symbol service with WMS, allowing a flexible and customizable WMS visualization.
Keywords
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