TY - GEN
T1 - On vertex- and empty-ply proximity drawings
AU - Angelini, Patrizio
AU - Chaplick, Steven
AU - De Luca, Felice
AU - Fiala, Jiří
AU - Hančl, Jaroslav
AU - Heinsohn, Niklas
AU - Kaufmann, Michael
AU - Kobourov, Stephen
AU - Kratochvíl, Jan
AU - Valtr, Pavel
N1 - Publisher Copyright:
© Springer International Publishing AG 2018.
PY - 2018
Y1 - 2018
N2 - We initiate the study of the vertex-ply of straight-line drawings, as a relaxation of the recently introduced ply number. Consider the disks centered at each vertex with radius equal to half the length of the longest edge incident to the vertex. The vertex-ply of a drawing is determined by the vertex covered by the maximum number of disks. The main motivation for considering this relaxation is to relate the concept of ply to proximity drawings. In fact, if we interpret the set of disks as proximity regions, a drawing with vertex-ply number 1 can be seen as a weak proximity drawing, which we call empty-ply drawing. We show non-trivial relationships between the ply number and the vertex-ply number. Then, we focus on empty-ply drawings, proving some properties and studying what classes of graphs admit such drawings. Finally, we prove a lower bound on the ply and the vertex-ply of planar drawings.
AB - We initiate the study of the vertex-ply of straight-line drawings, as a relaxation of the recently introduced ply number. Consider the disks centered at each vertex with radius equal to half the length of the longest edge incident to the vertex. The vertex-ply of a drawing is determined by the vertex covered by the maximum number of disks. The main motivation for considering this relaxation is to relate the concept of ply to proximity drawings. In fact, if we interpret the set of disks as proximity regions, a drawing with vertex-ply number 1 can be seen as a weak proximity drawing, which we call empty-ply drawing. We show non-trivial relationships between the ply number and the vertex-ply number. Then, we focus on empty-ply drawings, proving some properties and studying what classes of graphs admit such drawings. Finally, we prove a lower bound on the ply and the vertex-ply of planar drawings.
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U2 - 10.1007/978-3-319-73915-1_3
DO - 10.1007/978-3-319-73915-1_3
M3 - Conference contribution
AN - SCOPUS:85041863745
SN - 9783319739144
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 24
EP - 37
BT - Graph Drawing and Network Visualization - 25th International Symposium, GD 2017, Revised Selected Papers
A2 - Ma, Kwan-Liu
A2 - Frati, Fabrizio
PB - Springer-Verlag
T2 - 25th International Symposium on Graph Drawing and Network Visualization, GD 2017
Y2 - 25 September 2017 through 27 September 2017
ER -