摘要
模型综合是数字环境下地理信息的概念层次上的综合,是地图综合的前提和基础,它通过改变地图内部目标的空间关系和语义关系,使地图的表达更简单;同时处理空间语义关系,保证小比例尺下的语义表达,进而使综合更方便.详细探讨了模型综合的概念和内涵,并着重从空间关系和语义关系方面探讨了模型综合的具体内容.
Model generalization is the foundation of map generalization, which is conceptual generalization of spatial information in digital environment. Model generalization modifies spatial relations and semantics relations of map objects to reduce spatial information, makes it simpler and convenient to represent geographic information in smaller scale. The paper discusses the concept and meaning through the contrast of model generalization and cartographic generalization, then illustrates the model generalization in topological and semantic aspect, generalization decision.
出处
《华中师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2004年第4期524-527,共4页
Journal of Central China Normal University：Natural Sciences
基金
国家"863"计划资助项目(1469990424232-3)
国家基础测绘基金资助项目(1469990324231).
关键词
模型综合
制图综合
空间关系
几何属性
语义信息
综合决策
model generalization
cartographic generalization
spatial relationships
metrics
semantics
generalization decision
