@kindermann

Drawing Planar Graphs with Few Geometric Primitives

, , , и . Proceedings of the 43rd International Workshop on Graph-Theoretic Concepts in Computer Science (WG'17), том 10520 из Lecture Notes in Computer Science, стр. 316--329. Springer-Verlag, (июня 2017)
DOI: 10.1007/978-3-319-68705-6_24

Аннотация

We define the visual complexity of a plane graph drawing to be the number of geometric objects needed to represent all its edges. In particular, one object may represent multiple edges (e.g. you need only one line segment to draw two collinear edges of the same vertex). We show that trees can be drawn with $3n/4$ straight-line segments on a polynomial grid, and with $n/2$ straight-line segments on a quasi-polynomial grid. We also study the problem of drawing maximal triangulations with circular arcs and provide an algorithm to draw such graphs using only $(5n - 11)/3$ arcs. This provides a significant improvement over the lower bound of $2n$ for line segments for a nontrivial graph class.

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