摘要
对现有移动终端现状及空间矢量信息渐进传输的多种内在因素进行分析后,确定将矢量图层的分层次渐进传输方式改为分区域的渐进传输方式,用于解决大数据集浏览效果不佳的问题。采用分区域压缩的方法进行渐进传输,中心区域保持原尺度数据,而非中心区域均显示压缩数据;采用下一代网络图形标准SVG,结合Java Web、HTML5等技术实现渐进传输体系结构,并进行相关的渐进传输实验。实验表明,该方案在处理移动终端大数据集传输与提高移动终端用户体验方面均获得了较好的效果,体现其可行性及有效性。
Based on the analysis of the current situation of the existing mobile terminals and the variety of internal factors of progressive transmission of spatial vector information,we determined to change the hierarchical progressive transmission method of vector maps into the sub-regional progressive transmission method to solve the problem that the browse effects of large data sets are not very desirable.We adopted the sub-regional compression method to transmit,keeping the original dimension data in the center area and showing the compress data in others.We adopted the next generation network graphic standards SVG,combined with the Java Web,HTML5 technologies to implement progressive transmission system,and carried out a plenty of related experiments.These experiments show that the scheme is of feasibility and effectiveness in dealing with the transmission of large data sets on mobile terminals and improvement of the user experiences.
出处
《计算机与现代化》
2013年第9期143-147,共5页
Computer and Modernization
关键词
渐进传输
移动终端
矢量
SVG
压缩
progressive transmission
mobile terminal
vector
SVG
compression
