Succinct greedy drawings do not always exist

  • Authors:
  • Patrizio Angelini;Giuseppe Di Battista;Fabrizio Frati

  • Affiliations:
  • Dipartimento di Informatica e Automazione, Università Roma Tre, Rome, Italy;Dipartimento di Informatica e Automazione, Università Roma Tre, Rome, Italy;Dipartimento di Informatica e Automazione, Università Roma Tre, Rome, Italy

  • Venue:
  • Networks
  • Year:
  • 2012

Quantified Score

Hi-index 0.00

Visualization

Abstract

A greedy drawing is a graph drawing containing a distance-decreasing path for every pair of nodes. A path (v0,v1,…,vm) is distance-decreasing if d(vi,vm) d(vi-1,vm), for i = 1,…,m. Greedy drawings easily support geographic greedy routing. Hence, a natural and practical problem is the one of constructing greedy drawings in the plane using few bits for representing vertex Cartesian coordinates and using the Euclidean distance as a metric. We show that there exist greedy-drawable graphs that do not admit any greedy drawing in which the Cartesian coordinates have less than a polynomial number of bits. © 2012 Wiley Periodicals, Inc. NETWORKS, 2012 (A preliminary version of this article appeared at the International Symposium on Graph Drawing (GD '09).)