Maintaining the area consistency of land parcel based on change types(基于变化类型的地类图斑面积一致性维护)
维护数据更新前后的空间拓扑一致性与属性逻辑一致性是数据更新过程中必须考虑的问题.由于地类图斑的属性面积与图形面积在数据库存储的精度不同,四舍五入后造成数据更新前后属性面积统计值存在差异.本文在分析地理实体变化类型后提出了数据更新过程中地类图斑的6种变化类型,针对分割与综合变化2种具有代表性的变化类型,设计与实现了不同的维护面积一致性的方法,并在实际应用系统中得到有效验证....
Main Authors: | TANGYuan-bin(唐远彬), LIURen-yi(刘仁义), LIULi-xiang(刘理想), LIUNan(刘南) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2012-01-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/10.3785/j.issn.1008-9497.2012.01.020 |
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