/// <summary>
/// Will insert a point in the polygon after given point
/// </summary>
public void insertPointAfter(PolygonPoint a, PolygonPoint newPoint)
{
// Validate that
int index = _points.IndexOf(a);
if (index != -1)
{
newPoint.setNext(a.getNext());
newPoint.setPrevious(a);
a.getNext().setPrevious(newPoint);
a.setNext(newPoint);
_points.Insert(index + 1, newPoint);
}
else
{
throw new Exception("Tried to insert a point into a Polygon after a point not belonging to the Polygon");
}
}
public void removePoint(PolygonPoint p)
{
PolygonPoint next, prev;
next = p.getNext();
prev = p.getPrevious();
prev.setNext(next);
next.setPrevious(prev);
_points.Remove(p);
}
public void addPoints(List <PolygonPoint> list)
{
PolygonPoint first;
foreach (PolygonPoint p in list)
{
p.setPrevious(_last);
if (_last != null)
{
p.setNext(_last.getNext());
_last.setNext(p);
}
_last = p;
_points.Add(p);
}
first = (PolygonPoint)_points[0];
_last.setNext(first);
first.setPrevious(_last);
}