public List <Triangule> Triangulate()
{
res.Clear();
Triangule root = new Triangule();
Pair pair;
List <Point2D> leftOverPointsTemp = new List <Point2D>(leftOverPoints);
List <Point2D> leftOverPoints2 = new List <Point2D>(leftOverPoints);
foreach (Point2D[] p in GetRandomPoints())
{
if (!HasPointsInside(p[0], p[1], p[2]))
{
root = new Triangule(p[0], p[1], p[2]);
res.Add(root);
leftOverPointsTemp.Remove(p[0]);
leftOverPointsTemp.Remove(p[1]);
leftOverPointsTemp.Remove(p[2]);
pair = Triangulate(leftOverPointsTemp, res);
if (pair.ok)
{
return(pair.res);
}
else
{
res.RemoveAt(0);
leftOverPointsTemp = leftOverPoints2;
}
}
}
return(null);
}
private bool HasPointsInside(Point2D point2D, Point2D point2D_2, Point2D point2D_3)
{
List <Triangule> list = new List <Triangule>();
Triangule t = new Triangule(point2D, point2D_2, point2D_3);
list.Add(t);
Dictionary <Triangule, Circle> dict = GetCircumcicles(list);
foreach (Point2D p in points)
{
if (!p.Equals(point2D) && !p.Equals(point2D_2) && !p.Equals(point2D_3))
{
if (Math.Pow(p.x - dict[t].center.x, 2) + Math.Pow(p.y - dict[t].center.y, 2) <= Math.Pow(dict[t].radius, 2))
{
return(true);
}
}
}
return(false);
//float[,] matrix = new float[3, 3];
//Triangule t = new Triangule(point2D, point2D_2, point2D_3);
//foreach (Point2D p in points)
//{
// //if (res.Find(t => t.a.Equals(p) || t.b.Equals(p) || t.c.Equals(p)) == null && !p.Equals(point2D) && !p.Equals(point2D_2) && !p.Equals(point2D_3))
// if (!p.Equals(point2D) && !p.Equals(point2D_2) && !p.Equals(point2D_3))
// {
// matrix = new float[3, 3];
// matrix[0, 0] = t.a.x - p.x;
// matrix[0, 1] = t.a.y - p.y;
// matrix[0, 2] = (float)(Math.Pow(matrix[0, 0], 2) + Math.Pow(matrix[0, 1], 2));
// matrix[1, 0] = t.b.x - p.x;
// matrix[1, 1] = t.b.y - p.y;
// matrix[1, 2] = (float)(Math.Pow(matrix[1, 0], 2) + Math.Pow(matrix[1, 1], 2));
// matrix[2, 0] = t.c.x - p.x;
// matrix[2, 1] = t.c.y - p.y;
// matrix[2, 2] = (float)(Math.Pow(matrix[2, 0], 2) + Math.Pow(matrix[2, 1], 2));
// if (CalculateDeterminant(matrix) > 0)
// return true;
// }
//}
//return false;
}
public override bool Equals(object obj)
{
Triangule other = obj as Triangule;
return(other.a.Equals(a) && other.b.Equals(b) && other.c.Equals(c));
}