边、开关、隧道与桥梁
数据结构与算法
2009-07-09 v1 计算几何
摘要
边套管(Edge casing)是一种提高非平面图绘图可读性的常用方法。套管绘图对每条边交叉处的边进行排序,并在交叉点的适当邻域内中断下层边。某些排序方式会比其他方式产生更具可读性的绘图。我们提出了若干优化准则,试图捕捉“良好”套管绘图的概念。此外,我们探讨了如何将给定绘图转化为最优套管绘图的算法问题。对于许多由此产生的优化问题,我们要么找到了多项式时间算法,要么证明了其 NP 难性。
引用
@article{arxiv.0705.0413,
title = {Edges and Switches, Tunnels and Bridges},
author = {David Eppstein and Marc van Kreveld and Elena Mumford and Bettina Speckmann},
journal= {arXiv preprint arXiv:0705.0413},
year = {2009}
}
备注
15 pages, 11 figures. To appear in 10th Worksh. Algorithms and Data Structures, Halifax, Nova Scotia, 2007. This version includes three pages of appendices that will not be included in the conference proceedings version