public double Distance(Vertex2D vert)
{
double l = this.Length();
double dx0 = V2.X - V1.X;
double dy0 = V2.Y - V1.Y;
double dx = vert.X - V1.X;
double dy = vert.Y - V1.Y;
double p = dx * dx0 + dy * dy0;
p /= l;
if (p < 0.0)
{
return(Math.Sqrt(dx * dx + dy * dy));
}
if (p > l)
{
double dx1 = vert.X - V2.X;
double dy1 = vert.Y - V2.Y;
return(Math.Sqrt(dx1 * dx1 + dy1 * dy1));
}
double L = Math.Sqrt(dx * dx + dy * dy);
return(Math.Sqrt(L * L - p * p));
}
public override object Clone()
{
Vertex2D v = new Vertex2D();
v.X = X;
v.Y = Y;
v.extID = extID;
return(v);
}
public override object Clone()
{
Vertex2D v1 = (Vertex2D)V1.Clone();
Vertex2D v2 = (Vertex2D)V2.Clone();
Edge2D e = new Edge2D(v1, v2);
e.extID = extID;
return(e);
}
public Vertex2D Verteces2LinCut(double t)
{
double x = V1.X + t * (V2.X - V1.X);
double y = V1.Y + t * (V2.Y - V1.Y);
Vertex2D v = new Vertex2D();
v.X = x;
v.Y = y;
return(v);
}
public override object Clone()
{
Vertex2D v1 = (Vertex2D)V1.Clone();
Vertex2D v2 = (Vertex2D)V2.Clone();
Vertex2D v3 = (Vertex2D)V3.Clone();
Triangle2D tr = new Triangle2D(v1, v2, v3);
tr.extID = extID;
tr.E1 = (Edge2D)E1.Clone();
tr.E2 = (Edge2D)E2.Clone();
tr.E3 = (Edge2D)E3.Clone();
return(tr);
}
public Edge2D(Vertex2D v1, Vertex2D v2) : base(v1, v2)
{
}
public Triangle2D(Vertex2D v1, Vertex2D v2, Vertex2D v3)
: base(v1, v2, v3)
{
}