在有界点集上嵌入平衡二叉树
Embedding a balanced binary tree on a bounded point set
摘要:
给定一个具有n个顶点的无向平面图G和一个位于简单多边形P内的n个点的集合S,G在S上的点集嵌入是G的一个平面图,使得每个顶点映射到S的一个不同点,并且边是由P包围的多边形链。本文给出了一个新的算法,它在O(m^2 + n(log n)^2 + mn)时间内把一个n点平衡二叉树BBT嵌入到一个由m边形P围成的n点集S上,每条边最多有O(m)次弯曲.
英文摘要:
Given an undirected planar graph G with n vertices and a set S of n points inside a simple polygon P, a point-set embedding of G on S is a planar drawing of G such that each vertex is mapped to a distinct point of S and the edges are polygonal chains surrounded by P. A special case of the embedding problem is that in which G is a balanced binary tree. In this paper, we present a new algorithm for embedding an n-vertex balanced binary tree BBT on a set S of n points bounded by a simple m-gon P in O(m^2 + n(log n)^2 + mn) time with at most O(m) bends per edge.
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