The approximate rectangle of influence drawability problem

  • Authors:
  • Emilio Di Giacomo;Giuseppe Liotta;Henk Meijer

  • Affiliations:
  • Dip. di Ingegneria Elettronica e dell'Informazione, Università degli Studi di Perugia, Italy;Dip. di Ingegneria Elettronica e dell'Informazione, Università degli Studi di Perugia, Italy;Roosevelt Academy, The Netherlands

  • Venue:
  • GD'12 Proceedings of the 20th international conference on Graph Drawing
  • Year:
  • 2012

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Abstract

We prove that all planar graphs have an open/closed (ε1,ε2)-rectangle of influence drawing for ε10 and ε20, while there are planar graphs which do not admit an open/closed (ε1,0)-rectangle of influence drawing and planar graphs which do not admit a (0,ε2)-rectangle of influence drawing. We then show that all outerplanar graphs have an open/closed (0,ε2)-rectangle of influence drawing for any ε2≥0. We also prove that if ε22 an open/closed (0, ε2)-rectangle of influence drawing of an outerplanar graph can be computed in polynomial area. For values of ε2 such that ε2≤2, we describe a drawing algorithm that computes (0,ε2)-rectangle of influence drawings of binary trees in area $O(n^{2 + f(\varepsilon _2)})$, where f(ε2) is a logarithmic function that tends to infinity as ε2 tends to zero, and n is the number of vertices of the input tree.