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How to Draw a Planarization

机译:如何绘制平面图

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摘要

We study the problem of computing straight-line drawings of non-planar graphs with few crossings. We assume that a crossing-minimization algorithm is applied first, yielding a planarization, i.e., a planar graph with a dummy vertex for each crossing, that fixes the topology of the resulting drawing. We present and evaluate two different approaches for drawing a planarization in such a way that the edges of the input graph are as straight as possible. The first approach is based on the planarity-preserving force-directed algorithm ImPrEd [18], the second approach, which we call Geometric Planarization Drawing, itera-tively moves vertices to their locally optimal positions in the given initial drawing.
机译:我们研究了计算具有很少交叉的非平面图的直线图的问题。我们假设首先应用交叉最小化算法,从而产生一个平面化,即每个交叉具有虚拟顶点的平面图,该图形固定了结果图形的拓扑。我们提出并评估两种不同的绘制平面化方法,以使输入图的边缘尽可能笔直。第一种方法基于保持平面性的力导向算法ImPrEd [18],第二种方法称为几何平面化图形,它在给定的初始图形中迭代地将顶点移动到其局部最优位置。

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