摘要
对地理特征进行标注是GIS的重要功能,地图标注可以提高地图的可理解性,因而地图标注一直是制图和GIS的研究热点。随着地理信息的指数增长,海量数据快速符号化成为了地图信息有效传输亟待解决的问题。本文提出了一种基于分类的地图符号快速标注算法,将全局的环境要素变换成分组标注序列,将标注过程分解为等价分组标注过程。试验分析结果表明,与常规方法相比,有效提高了地图的标注速度。该算法为海量数据快速符号化的研究提供了基础,为大数据量地图信息有效传输的实现提供了支撑。
The important function of GIS is to label the geography feature,which can improve the intelligibility of the map.Consequently,the map labeling problem has been a fundamental question for GIS.With the exponential growth of geographic information,huge amounts of data fast symbol problem need to be solved for effective transfer of map information.This paper presents a rapid arithmetic,based on category.The algorithm stated in this paper transfers geography element to grouped Sequence Labeling,and disassembles the labeling process into equivalent group mark process.The test results show that,compared with conventional methods,to effectively improve the speed of the map marked.The algorithm for the huge amounts of data fast symbolic provides the foundation provided support for the effective transmission of large amount of data map information.
出处
《软件》
2012年第2期108-110,共3页
Software
基金
国家自然基金重大专项(91130035)
国家自然科学基金资助项目(60974085)
国家公益性行业科研专项(200905030)
海洋沉积与环境地质国家海洋局重点实验室开放基金资助项目(MASEG200812)
关键词
分类
GIS
快速标注算法
Classification
GIS
Fast LabelingAlgorithm
