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Line Simplification in the Presence of Non-Planar Topological Relationships

  • Padraig Corcoran
  • Peter Mooney
  • Michela Bertolotto
Chapter
Part of the Lecture Notes in Geoinformation and Cartography book series (LNGC)

Abstract

A main objective of many line simplification methods is to progressively reduce the scale of shape properties and, in turn, provide a more explicit representation of global shape properties. However, current simplification methods which attempt to achieve this objective, while also maintaining non-planar topological relationships, are restricted and cannot always achieve an optimal result. In this paper, we present a line simplification method which removes these restrictions. This is achieved through the use of a computable set of topological invariants, which is complete and allows the topological consistency of an arbitrary simplification to be determined.

Keywords

Line simplification Map generalisation Topology 

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Notes

Acknowledgments

Research presented in this paper was funded by the Irish Research Council for Science Engineering and Technology (IRCSET) EMPOWER program, the Irish Environmental Protection Agency (EPA) STRIVE programme (Grant 2008-FS-DM-14-S4) and a Strategic Research Cluster Grant (07/SRC/I1168) from Science Foundation Ireland under the National Development Plan.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Padraig Corcoran
    • 1
  • Peter Mooney
    • 2
  • Michela Bertolotto
    • 1
  1. 1.School of Computer Science and InformaticsUniversity College DublinDublinIreland
  2. 2.Department of Computer ScienceNational University of Ireland MaynoothMaynoothIreland

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