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Confluent Hasse Diagramsn this case, we construct a confluent upward drawing with .(..) features, in an .(.) ×.(.) grid in .(..) time. For the digraphs representing series-parallel partial orders we show how to construct a drawing with .(.) features in an .(.) ×.(.) grid in .(.) time from a series-parallel decomposition of

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Proportional Contact Representations of Planar Graphs-contacts between the corresponding polygons. Specifically, we consider proportional contact representations, where pre-specified vertex weights must be represented by the areas of the corresponding polygons. Several natural optimization goals for such representations include minimizing the complexi

EWER

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Orthogeodesic Point-Set Embedding of Treeswn as a point of . and each edge is an orthogonal chain with bends on grid points whose length is equal to the Manhattan distance. We study the following problem. Given a family of trees . what is the minimum value .(.) such that every .-vertex tree in . admits an orthogeodesic point-set embedding o

Foreknowledge

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