摘要
GIS路径分析结果的汉语描述是指用人们日常生活中的语言和思维方式来描述路径分析结果,可以为用户提供描述清晰、便于理解的自然语言路径信息。提出了基于连续极坐标的GIS路径汉语描述法。该算法对GIS初始路径分析结果首先进行冗余节点的剔除处理,然后逐步建立连续极坐标系,求取节点极坐标、获取相关方向和距离信息,调用路径描述知识库的相关描述词汇和控制规则构建完整的汉语GIS路径描述语句。实现了基于路径图显示与汉语描述相结合的GIS路径表示原型系统。
The description of GIS path based on natural language is a way to describe path using the languages and thoughts in people＇s daily life. It can supply clear and comprehended-easily information of path to users. The Chinese description algorithm of GIS path based on continuous polar coordinates was designed and realized. Firstly, the algorithm got rid of the redundant road nodes of the results of initial path. Secondly, it constructed the system of polar coordinates to work out the polar coordinate of next node of path. Thirdly, it gen- erated whole Chinese description sentence of path using descriptive lexicon and manipulative rules in knowledge base of GIS path description. Finally, the prototype describing system was realized with path chart and Chinese using the part roads and residential area in Zhengzhou city.
出处
《测绘科学技术学报》
北大核心
2011年第4期307-312,共6页
Journal of Geomatics Science and Technology
基金
信息工程大学测绘学院自立科研课题资助项目(Y1004)
