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...earest point" approach. An example is shown here: http://www.deepcreekanswers.com/samples/sampledata.png. I've tried a closest perpendicular distance to the shoreline polygon elements approach. But it's worse. Does anyone have an approach that might work? Thank you a priori. Pete Versteegen -- View this message in context: http://r.789695.n4.nabble.com/Creating-a-polygon-from-an-unordered-set-of-points-tp4647181.html Sent from the R help mailing list archive at Nabble.com.