/// <summary>
/// Constructor (default tightness and no predefined bernstein polynomial)
/// </summary>
/// <param name="rawPoints">List of control point vectors</param>
/// <param name="b">Predefined Bernstein polynomial (good for reusing)</param>
/// <param name="tightness">Default curve tightness used for the interpolated vertices</param>
public Spline3D(List <Coord3d> rawPoints, BernsteinPolynomial b, double tightness)
{
this.Tightness = tightness;
mpointList = new List <Coord3d>();
mpointList.AddRange(rawPoints);
bernstein = b;
}
public List <Coord3d> ComputeVertices(int resolution)
{
UpdateCoefficients();
resolution += 1;
if (bernstein == null || bernstein.resolution != resolution)
{
bernstein = new BernsteinPolynomial(resolution);
}
if (vertices == null)
{
vertices = new List <Coord3d>();
}
else
{
vertices.Clear();
}
findCPoints();
Coord3d deltaP = default(Coord3d);
Coord3d deltaQ = default(Coord3d);
resolution -= 1;
for (int i = 0; i <= numP - 2; i++)
{
Coord3d p = points[i];
Coord3d q = points[i + 1];
deltaP = delta[i].@add(p);
deltaQ = q.substract(delta[i + 1]);
for (int k = 0; k <= resolution - 1; k++)
{
double x = p.x * bernstein.b0[k] + deltaP.x * bernstein.b1[k] + deltaQ.x * bernstein.b2[k] + q.x * bernstein.b3[k];
double y = p.y * bernstein.b0[k] + deltaP.y * bernstein.b1[k] + deltaQ.y * bernstein.b2[k] + q.y * bernstein.b3[k];
double z = p.z * bernstein.b0[k] + deltaP.z * bernstein.b1[k] + deltaQ.z * bernstein.b2[k] + q.z * bernstein.b3[k];
vertices.Add(new Coord3d(x, y, z));
}
}
vertices.Add(points[points.Length - 1]);
return(vertices);
}
/// <summary>
/// Constructor (default tightness and no predefined bernstein polynomial)
/// </summary>
/// <param name="rawPoints">Array of control point vectors</param>
/// <param name="b">Predefined Bernstein polynomial (good for reusing)</param>
/// <param name="tightness">Default curve tightness used for the interpolated vertices</param>
public Spline3D(Coord3d[] rawPoints, BernsteinPolynomial b, double tightness) : this(new List <Coord3d>(rawPoints), b, DEFAULT_TIGHTNESS)
{
}
