An Approach for Mixed Upward Planarization

  • Authors:
  • Markus Eiglsperger;Michael Kaufmann

  • Affiliations:
  • -;-

  • Venue:
  • WADS '01 Proceedings of the 7th International Workshop on Algorithms and Data Structures
  • Year:
  • 2001

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Abstract

In this paper, we consider the problem of finding a mixed upward planarization of a mixed graph, i.e., a graph with directed and undirected edges. The problem is a generalization of the planarization problem for undirected graphs and is motivated by several applications in graph drawing. We present a heuristical approach for this problem which provides good quality and reasonable running time in practice, even for large graphs. This planarization method combined with a graph drawing algorithm for upward planar graphs can be seen as a real alternative to the wellknown Sugiyama algorithm.