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[Author] Akane SETO(1hit)

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  • Acute Constraints in Straight-Line Drawings of Planar Graphs

    Akane SETO  Aleksandar SHURBEVSKI  Hiroshi NAGAMOCHI  Peter EADES  

     
    PAPER-Graph algorithms

      Vol:
    E102-A No:9
      Page(s):
    994-1001

    Recent research on graph drawing focuses on Right-Angle-Crossing (RAC) drawings of 1-plane graphs, where each edge is drawn as a straight line and two crossing edges only intersect at right angles. We give a transformation from a restricted case of the RAC drawing problem to a problem of finding a straight-line drawing of a maximal plane graph where some angles are required to be acute. For a restricted version of the latter problem, we show necessary and sufficient conditions for such a drawing to exist, and design an O(n2)-time algorithm that given an n-vertex plane graph produces a desired drawing of the graph or reports that none exists.