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From: Mike Bostock <mbost...@gmail.com>
Subject: Re: d3.geom.voronoi - trimming edge polygons
Date: Sat, 12 May 2012 17:50:23 -0700
To: "d3-js@googlegroups.com" <d3-js@googlegroups.com>

Try d3.geom.polygon's clip method.

Mike