面向海图信息发布的点符号模型设计与实现  

The Model Design and Implementation of Point Symbol for Chart Information Dissemination

作　　者：王志展 万晓霞[1] 

机构地区：[1]武汉大学图像传播实验室,湖北武汉430079

出　　处：《交通科技与经济》2015年第3期119-123,共5页Technology & Economy in Areas of Communications

基　　金：国家科技支撑计划项目(2013BAD13B01)

摘　　要：海图符号在GIS上的显示与在纸质载体信息发布所呈现的方式不同,导致符号在信息发布时不能及时准确地转换。针对此问题,提出一种符号信息发布的通用样式规范,采用中间件的方式,使用XML对需要转换的符号进行规范化描述,并对描述进行解析,使其能够通过PDF发布或出版,实现数据模型的解析输出,使海图符号信息能够自动准确并及时地更新发布。此转换模型有助于海图符号的传递和共享,保证数据的及时性和一致性。The different of Chart symbols displayed between Geographic Information System and the paper for information dissemination leads to the consequenceswhich the symbols cannot accurate conversion.This paper presents a generic style symbol information published specification that using the middleware approach by standardized description of symbols through XML and it can be parsed and then published by PDF.Analytical data model to achieve this output can make chart symbols accurate and timely information to automatically update release.This chart symbols model was proposed in this paper to help transfer and sharing of chart symbols and ensuring the timeliness and consistency of the data.

关 键 词：海图符号 XML 符号转换 符号共享 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P285.7[天文地球—测绘科学与技术]