title: Constrained d3.js Force display
body: <p>I'd like to do something a little bit out of the ordinary with force layouts (for visualizing graphs). Constellations and all are fun to look at, but for timeseries data, it's not that helpful. I'd like to be able to constrain the layout by some axis, for example, by laying out the nodes according to the time they appear in a dataset, while still retaining the "bouncyness" of the visualization. Is this possible using d3?</p>