public static MyVector Multiply(this MyVector v, double c)
{
v.x *= c;
v.y *= c;
v.z *= c;
return(v);
}
public static MyVector Normalize(this MyVector v)
{
double div = Math.Sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
if (div != 0)
{
v.x /= div;
v.y /= div;
v.z /= div;
}
else
{
v.z = 1;
}
return(v);
}
public static MyVector Add(this MyVector N, MyVector D, bool normalize = true)
{
N.x += D.x;
N.y += D.y;
N.z += D.z;
if (normalize)
{
double div = Math.Sqrt(N.x * N.x + N.y * N.y + N.z * N.z);
if (div != 0)
{
N.x /= div;
N.y /= div;
N.z /= div;
}
else
{
N.z = 1;
}
}
return(N);
}
public static double Cos(this MyVector N, MyVector L)
{
return(Math.Abs(N.x * L.x + N.y * L.y + N.z * L.z));
}
