private void Approximate(int index1, int index2, KeyFunction keyFunction, int numberOfPoints)
{
int index0;
int index3;
approximation.Clear();
if (keyFunction == KeyFunction.Spline)
{
index0 = index1 < 1 ? 0 : index1 - 1;
index3 = index2 >= points.Count - 1 ? points.Count - 1 : index2 + 1;
}
else if (keyFunction == KeyFunction.ClosedSpline)
{
index0 = index1 < 1 ? points.Count - 1 : index1 - 1;
index3 = index2 >= points.Count - 1 ? 0 : index2 + 1;
}
else
{
approximation.Add(points[index1]);
approximation.Add(points[index2]);
return;
}
approximation.Add(points[index1]);
for (int i = 1; i < numberOfPoints - 1; ++i)
{
approximation.Add(
Mathf.CatmullRomSpline(
(float)i / numberOfPoints,
points[index0],
points[index1],
points[index2],
points[index3]
)
);
}
approximation.Add(points[index2]);
}
