private void button3_Click(object sender, EventArgs e)
{
GrahamScan ch = new GrahamScan();
IPositionSet ps = ch.ConvexHull(getPoints2((Bitmap)pictureBox1.Image));
Graphics g = Graphics.FromImage(pictureBox1.Image);
IPosition p1 = ps.GetPosition();
IPosition p2 = ps.GetPosition();
while (p2 != null)
{
g.DrawLine(new Pen(Color.Green), new PointF(p1.GetX(), p1.GetY()), new PointF(p2.GetX(), p2.GetY()));
p1 = p2;
p2 = ps.GetPosition();
}
ps.InitToTraverseSet();
p2 = ps.GetPosition();
g.DrawLine(new Pen(Color.Green), new PointF(p1.GetX(), p1.GetY()), new PointF(p2.GetX(), p2.GetY()));
pictureBox1.Refresh();
}
void GSCH(double n, Object o)
{
GrahamScan GS = new GrahamScan();
GS.ConvexHull((IPositionSet)o);
}