title: Graphviz: arranging nodes
body: <p>Is it possible to tell GraphViz (Dot) to try arranging nodes of the graph without stretching either of the dimensions?
  For example, if I create a graph with 25 nodes and no edges, GraphViz visualizes it with all nodes in a single row. What I want is to get a 5 x 5 "field" of nodes.</p>