public void SnapToOriginInPlace(IList <C2DPoint> input)
{
var minXy = MinMax(input);
for (var i = 0; i < input.Count; ++i)
{
input[i] = new C2DPoint(input[i].X - minXy.Item1, input[i].Y - minXy.Item2);
}
var poly = new C2DPolygon(input.ToList(), true);
poly.RandomPerturb();
var pointsCopy = new C2DPointSet();
poly.GetPointsCopy(pointsCopy);
for (var i = 0; i < pointsCopy.Count; ++i)
{
input[i] = pointsCopy[i];
}
}
public List <C2DHoledPolygon> GetIntersectingPolygons(IList <C2DPoint> pointsA, IList <C2DPoint> pointsB, IntersectionType whichPolygons)
{
var leftPoly = new C2DPolygon(pointsA.ToList(), true);
var rightPoly = new C2DPolygon(pointsB.ToList(), true);
rightPoly.RandomPerturb();
var someGrid = new CGrid();
var smallPolygons = new List <C2DHoledPolygon>();
switch (whichPolygons)
{
case IntersectionType.Overlapping:
leftPoly.GetOverlaps(rightPoly, smallPolygons, someGrid);
break;
case IntersectionType.NonOverlapping:
leftPoly.GetNonOverlaps(rightPoly, smallPolygons, someGrid);
break;
default:
throw new ArgumentException(nameof(whichPolygons));
}
return(smallPolygons);
}
