摘要
针对从单一层面对地理实体增量信息表达方法的不足,提出了一种基于空间变化类型、动态更新操作和图形数据差的居民地要素增量信息表达模型。通过对居民地空间变化进行分类,建立了空间变化类型、动态更新操作和图形数据差之间的关联,最终建立了居民地增量信息表达模型,并利用实验验证了该模型的可行性和有效性。
A new expression model for settlement incremental information based on spatial change type, dynamic update operation and graphic data delta is proposed for making up the deficiency of the current expression models, which are based on a single level feature. The relationships among spatial change type, dynamic updating operation and graphic data delta are extracted through the classification of spatial changes. The expression model of settle- ment incremental information is constructed. The experimental results show that this model is valid and effective.
出处
《武汉大学学报(信息科学版)》
EI
CSCD
北大核心
2013年第7期857-861,共5页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(41171354
41171305
41101362)
国家863计划资助项目(2007AA12Z211
2009AA12Z305)
河南省创新性科技人才队伍建设工程资助项目(104200510016)
关键词
居民地
空间变化
更新操作
数据差
增量信息
settlement
spatial change
updating operation
data delta
incremental information