/// <summary>
/// Returns a copy of the Vector3k scaled to unit length.
/// </summary>
public Vector3k Normalized()
{
Vector3k v = this;
v.Normalize();
return(v);
}
public static Vector3k CalculateSurfaceNormal(Vertex [] verts)
{
Vector3k normal = new Vector3k(Accum.Zero, Accum.Zero, Accum.Zero);
Vertex cur, next;
int vCount = verts.Length;
for (int i = 0; i < vCount; i++)
{
cur = verts [i];
next = verts [(i + 1) % vCount];
normal.X += (cur.Y - next.Y) * (cur.Z + next.Z);
normal.Y += (cur.Z - next.Z) * (cur.X + next.X);
normal.Z += (cur.X - next.X) * (cur.Y + next.Y);
}
normal.Normalize();
return(normal);
}
/// <summary>
/// Converts a Vector3k to OpenTK's Vector3d type
/// </summary>
/// <param name="vec"></param>
/// <returns></returns>
public static Vector3d ToVec3d(this Vector3k vec)
{
return(new Vector3d((double)vec.X, (double)vec.Y, (double)vec.Z));
}
public Vector3k(Vector3k vec) : this(vec.x, vec.y, vec.z)
{
}
/// <summary>
/// Converts a Vector3k to OpenTK's Vector3 type
/// </summary>
/// <param name="vec"></param>
/// <returns></returns>
public static Vector3 ToVec3(this Vector3k vec)
{
return(new Vector3((float)vec.X, (float)vec.Y, (float)vec.Z));
}
