//Create two polygon to test with.
var poly = new Polygon2<EEK>(points);
//One polygon needs to be the shape for the sum.
//A simple circle is best.
var shape = PolygonFactory<EEK>.CreateCircle(0.5, 16);
//Get the instance object.
var instance = PolygonMinkowski<EEK>.Instance;
//If you know the input is good then checking 
//can be disabled which can increase perform.
//instance.CheckInput = false;
//Create the Minkowski sum polygon.
var sum =  instance.Sum(poly, shape);

var decom = MINKOWSKI_DECOMPOSITION.TRIANGULATION;
var sum =  instance.Sum(decom, poly, shape);