The Collaborative International Dictionary of English v.0.48:

Plot \Plot\, v. t. [imp. & p. p. Plotted; p. pr. & vb. n.
   Plotting.]
   To make a plot, map, pr plan, of; to mark the position of on
   a plan; to delineate.
   [1913 Webster]

         This treatise plotteth down Cornwall as it now
         standeth.                                --Carew.
   [1913 Webster]

WordNet (r) 3.0 (2006):

plotted
    adj 1: planned in advance; "with malice aforethought" [syn:
           aforethought(ip), planned, plotted]

Moby Thesaurus II by Grady Ward, 1.0:

89 Moby Thesaurus words for "plotted":
   admeasured, appraised, approaching, arranged, assessed,
   blueprinted, calculated, charted, coming, contrived, cooked-up,
   cut out, cut-and-dried, cut-and-dry, designed, desired, destinal,
   destined, determined, devised, emergent, eventual, extrapolated,
   fatal, fated, fatidic, figured, fixed, forthcoming, future,
   futuristic, gauged, hereafter, hoped-for, imminent, in the bag,
   in the works, known by measurement, later, mapped, measured,
   metered, methodized, nearing, on ice, on the agenda, on the anvil,
   on the calendar, on the carpet, on the docket, on the tapis,
   organized, packed, planned, prearranged, preconcerted,
   precontrived, predicted, premeditated, preordered, probable,
   projected, prophesied, prospective, put-up, quantified, quantized,
   rationalized, rigged, scheduled, schematized, schemed, set, set-up,
   shaped, stacked, strategetic, strategic, sur le tapis, surveyed,
   systematized, tactical, to come, to-be, triangulated, ultimate,
   valuated, valued, worked out