摘要
在开发基于多图模式的ECDIS时,提出了图库匹配检测方法,设计了图幅搜索算法,并改进了绘制过程中的冗余元素判断方法。图库匹配检测减少了系统初始化的工作量;对于一个给定的区域,采用了冗余图幅检测技术的搜索算法能返回覆盖绘制区域面积最大、而数目最少的图幅信息;改进的冗余元素判断方法能有效的避免重叠区域的元素重绘。
To improve system＇s efficiency when designing a multi-chart based ECDIS, some kinds of algorithms are designed or improved, Firstly, a method that checkout whether the charts＇ info file matches the chart library in ECDIS is proposed, improving the way in which the ECDIS manages its library. Secondly, a chart searching algorithm with redundant chart checking technique is designed to find out charts that could cover the biggest area to draw, yet uses least number of charts.
出处
《船海工程》
北大核心
2008年第2期110-113,共4页
Ship & Ocean Engineering
关键词
电子海图
搜索算法
多图模式
冗余检测
electronic chart
searching algorithm
multi-chart mode
redundancy check
