天地图福建电子地图注记逐级递增显示方法研究

摘要

With the development of geographic information technology , attention and applications of electronic maps get more and more widely .The display effect of the electronic map affect the application field of electronic map .This paper is mainly aimed at analysising the more attention points of Map annotation increasing step by step to find the algorithm on realizing Map annotation increasing with the scale increasing step by step and the expressing effect of appropriative porosities display according to a certain distance , to improve the quality of electronic map .%随着地理信息技术的发展，电子地图的关注度和应用领域越来越广。电子地图的图面效果直接影响了电子地图的关注度和应用领域。本文主要对兴趣点逐级递增和注记合理分布的算法进行研究和实验。通过实验本文提出了实现电子地图注记的合理分布及随着电子地图比例尺的增大实现逐级递增，增强了电子地图的图面表达效果，提高电子地图质量。