underlying visual processing in dim light is well conserved. Individual rod photoreceptors, themselves capable of reliably signaling the absorption of individual photons (6, 9), are pooled in a specialized circuitry referred to as the rod bipolar pathway (17, 49). Following a series of convergent connections in this pathway, the ganglion cells, which are the output cells of the retina, send sig...

We address the problem of drawing hypergraphs. We propose and evaluate a family of algorithms that transform a hypergraph drawing problem into a graph drawing problem. Each algorithm in the family relies on a different encoding of a hyperedge into a set of edges. The algorithms can then use any graph drawing algorithms. However, we here focus on the force-directed algorithms. We propose and dis...

We consider the recently introduced model of low ply graph drawing, a straight-line drawing in which the ply-disks of the vertices do not have many common overlaps, which results in a good distribution of the vertices in the plane. The ply-disk of a vertex is the disk centered at it whose radius is half the length of its longest incident edge. We focus our attention on low-ply drawings of trees...