/// <summary>
/// Get the line segments consisting of all the edges of this polygon.
/// </summary>
/// <returns></returns>
private List <LineSegment2> GetEdges()
{
List <LineSegment2> retlist = new List <LineSegment2>();
if ((null == Points) || (2 > Points.Count))
{
return(retlist);
}
Point2 firstpoint = Points[0];
Point2 lastpoint = Points[Points.Count - 1];
Point2 curpoint = firstpoint;
for (int i = 1; i < Points.Count; i++)
{
Point2 nextpoint = Points[i];
LineSegment2 seg = new LineSegment2(curpoint, nextpoint);
retlist.Add(seg);
curpoint = nextpoint;
}
retlist.Add(new LineSegment2(lastpoint, firstpoint));
return(retlist);
}
public bool IntersectsWith(LineSegment2 otherSegment)
{
return(Intersection(otherSegment) != null);
}
public static Point2 Intersection(LineSegment2 segment1, LineSegment2 segment2)
{
return(Intersection(segment1.PointA.X, segment1.PointA.Y, segment1.PointB.X, segment1.PointB.Y, segment2.PointA.X, segment2.PointA.Y, segment2.PointB.X, segment2.PointB.Y));
}
public Point2 Intersection(LineSegment2 otherSegment)
{
return(Intersection(this, otherSegment));
}