A graphviz layout algorithm for data-flow-diagrams that meets these requirements: The boxes/nodes/vertices need to be large enough that they can contain readabl

A graphviz layout algorithm for data-flow-diagrams that meets these requirements: The boxes/nodes/vertices need to be large enough that they can contain readable text. The lines/arcs/edges should group together into bundles/runs/buses to minimise the space that they occupy; to permit them squeeze through limited gaps between boxes, and to show where similar data flows travel in the same direction.