GIS中模糊区域的形式化描述方法探讨On Formalization Methods of Describing Fuzzy Region in GIS
邓敏,李成名,林宗坚
摘要(Abstract):
连续区域是环境科学、土壤科学等领域中广泛存在的一类地理实体。目前 ,在 GIS中表达这类实体的空间数据不可避免地带有模糊性。为此 ,首先分析和总结了 GIS空间目标数据获取的模式及其模糊性来源 ;然后 ,基于模糊集合论探讨了模糊区域目标的内部结构组成 ,分析并指出了已有研究中存在的不足。最后 ,建立了模糊区域目标形式化描述的一般模型 ,提出了 GIS图上模糊区域目标形式化描述的方法
关键词(KeyWords): 模糊区域;形式化描述;不确定性;空间关系
基金项目(Foundation): 国家自然科学基金资助项目 (4 980 10 16 )
作者(Author): 邓敏,李成名,林宗坚
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