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Publication Detail
Detection of spatial conflicts between rivers and contours in digital map updating
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Article
  • Authors:
    Chen J, Liu W, Li Z, Zhao R, Cheng T
  • Publisher:
    TAYLOR & FRANCIS LTD
  • Publication date:
    2007
  • Pagination:
    1093, 1114
  • Journal:
    INT J GEOGR INF SCI
  • Volume:
    21
  • Issue:
    10
  • Status:
    Published
  • Print ISSN:
    1365-8816
  • Language:
    EN
  • Keywords:
    map updating, spatial conflict, spatial relation, plane sweep algorithm
  • Addresses:
    Natl Genomat Ctr China
    Beijing
    Peoples R China

    China Univ Mining & Technol
    Xuzhou
    Jiangsu
    Peoples R China

    Hong Kong Polytech Univ
    Dept Land Surveying & Geoinformat
    Hong Kong
    Hong Kong
    Peoples R China

    UCL
    Dept Geomat Engn
    London
    WC1E 6BT
    England
Abstract
In the process of topographic map updating, spatial conflicts ( inconsistency) between rivers and contours may be created. This project studies the particularity and complexity of the relationships between rivers and contours, and develops a method for automatic detection of the spatial conflicts between them. This method consists of a refined descriptive spatial model ( called a topological chain), an algorithm for the computation of spatial relations, and a set of rules for the determination of spatial conflicts. In the spatial relation model, the topological relationships, order relationships, and metric relationships are integrated to describe the line-line spatial relationships. The rules are derived from the natural relations between rivers and contours in the real world. The effectiveness of this method has been verified by using the national 1: 50 000 topographic map databases. An accuracy of 91% has been achieved.
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