20^{th} International Symposium on
Graph Drawing
Sept 19~21, 2012  Redmond, Washington


Topic 1: Restricted Area In all categories, nodes must be placed on grid points. The area of grids is restricted. Layouts that exceed that area are not permitted. Edges must be routed within the restricted area, but there is no restriction concerning the shape of edges. Edge crossings are allowed. The graphs are evaluated according to aesthetic appearance and how well the area is used. Submissions that exceed the given area or where nodes are not placed on grid points are not accepted. Category A This graph is a simple directed tree. The allowed area is 30 x 30 grid points.
Category B This graph is a directed, planar DAG. In fact, it is a seriesparallel graph. The allowed area is 22 x 30 grid points.
Category C This graph is undirected and disconnected. The allowed area is 22 x 22 grid points.
File Format The graphs are given in a simple Ascii file format.
Sample file. Below is a simple example with 5 nodes and 8 edges.

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