Upward Planarization Layout
Chimani, Markus and Gutwenger, Carsten and Mutzel, Petra and Wong, Hoi-Ming (2010) Upward Planarization Layout. In: Graph Drawing 17th International Symposium, GD 2009, September 22-25, 2009, Chicago, IL, USA , pp. 94-106 (Official URL: http://dx.doi.org/10.1007/978-3-642-11805-0_11).
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Recently, we presented a new practical method for upward crossing minimization , which clearly outperformed existing approaches for drawing hierarchical graphs in that respect. The outcome of this method is an upward planar representation (UPR), a planarly embedded graph in which crossings are represented by dummy vertices. However, straight-forward approaches for drawing such UPRs lead to quite unsatisfactory results. In this paper, we present a new algorithm for drawing UPRs that greatly improves the layout quality, leading to good hierarchal drawings with few crossings. We analyze its performance on well-known benchmark graphs and compare it with alternative approaches.
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