Constraints of Progressive Transmission of Vector Data over Web

摘要：

The progressive transmission of map data over World Wide Web provides the user with a self-adaptive strategy to access remote data. It not only speeds up the web transfer but also offers an efficient navigation guide in information acquisition. The key technology in this transmission is the efficient multiple representation of spatial data and pre-organization on server site. This paper aims at progressive transmission investigating some constraints from three aspects: data organization in server site, data control in the transmission process and data restore after reached to the client. Two strategies, namely on-line map generalization and off-line map generalization, are examined respectively for this kind of progressive transmission.

关键词： progressive transmission map generalization spatial resolution

作者: Tinghua Ai

作者单位: School of Resource and Environment Sciences, Wuhan University, China

会议类型: 国际会议

会议名称: 北京国际地理信息系统学术讨论会第七届会议（7th International Workshop Geographical Information System

会议地点: 北京

会议语种:英文

页码: 321-328

在线出版日期: 2007-09-14（万方平台首次上网日期，不代表论文的发表时间）