6 papers
Beyond Degree Four: Near-Orthogonal Planar Drawings
Patrizio Angelini, Sabine Cornelsen, Giordano Da Lozzo +2
Orthogonal planar drawings constitute a classical and mainstream research topic in graph drawing due to their clarity and wide applicability. In an orthogonal planar drawing of a g…
Upward-Planar Drawings with Bounded Span
Patrizio Angelini, Sabine Cornelsen, Giordano Da Lozzo +4
We consider upward-planar layered drawings of directed graphs, i.e., crossing-free drawings in which each edge is drawn as a y-monotone curve going upward from its tail to its head…
On Planar Straight-Line Dominance Drawings
Patrizio Angelini, Michael A. Bekos, Giuseppe Di Battista +3
We study the following question, which has been considered since the 90's: Does every -planar graph admit a planar straight-line dominance drawing? We show concrete evidence fo…
The Price of Upwardness
Patrizio Angelini, Therese Biedl, Markus Chimani +8
Not every directed acyclic graph (DAG) whose underlying undirected graph is planar admits an upward planar drawing. We are interested in pushing the notion of upward drawings beyon…
Geometric realizations of dichotomous ordinal graphs
Patrizio Angelini, Sabine Cornelsen, Carolina Haase +5
A dichotomous ordinal graph consists of an undirected graph with a partition of the edges into short and long edges. A geometric realization of a dichotomous ordinal graph in a…
Unit Edge-Length Rectilinear Drawings with Crossings and Rectangular Faces
Patrizio Angelini, Carla Binucci, Giuseppe Di Battista +5
Unit edge-length drawings, rectilinear drawings (where each edge is either a horizontal or a vertical segment), and rectangular face drawings are among the most studied subjects in…