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Force embedding of a planar graph

机译:力嵌入平面图

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摘要

The planar embedding of a planar graph with the simultaneous minimization of an objective function of graph edge lengths is considered. It is shown that the so-called force embedding of a planar graph dictates a distinctive placement of the graph vertices and edges. This placement is a rectilinear edge embedding in which there are no edge intersections and the quadratic objective function of the edge lengths equals its global minimum. The, effectively O(mn), algorithm for finding the force embedding of a planar graph, where m and n are the number of the graph edges and the number of the graph vertices respectively, is presented.
机译:考虑了具有同时最小化图形边缘长度的目标函数的平面图的平面嵌入。结果表明,平面图的所谓的力嵌入决定了图形顶点和边缘的独特放置。该位置是直线边缘嵌入,其中没有边缘交叉口,边缘长度的二次目标函数等于其全局最小值。介绍了用于找到平面图的力嵌入的力嵌入的o(Mn),其中m和n分别是图形边缘的数量和图形顶点的数量。

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