On Mon, 10 Oct 2005, Bill Hibbard wrote: > This is the approach I would take. I'd use a straight line, > possibly as a Gridded2DSet, displayed with a DefaultRenderer, > and a set of RealTuples for a series of evenly spaced points > along the line, each displayed with a D_M_R_. If you only want the user to be able to move the points along circles, then each could be a Real, whose RealType is ScalarMap'ed to Longitude, with a ConstantMap fixing the Radius (a different radius for each Real point).
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