private float ClosestGuessToPoint(Vector3 point, int intervals,
out HermiteNode hermiteA, out HermiteNode hermiteB)
{
var bestSqrDist = Mathf.Infinity;
float bestFraction = 0f;
hermiteA = _hermiteNodes[0];
hermiteB = _hermiteNodes[_hermiteNodes.Length - 1];
var stepSize = 1f / intervals;
for (int j = 0; j < _hermiteNodes.Length - 1; j++)
{
if (j == _hermiteNodes.Length - 2)
{
// last point of last segment should reach p1
stepSize = 1f / (intervals - 1f);
}
for (int i = 0; i < intervals; i++)
{
var hA = HermitePointN(j);
var hB = HermitePointN(j + 1);
var fraction = stepSize * i;
var currPoint = PointAtFraction(hA, hB, fraction);
var currSqrDist = (currPoint - point).sqrMagnitude;
if (currSqrDist < bestSqrDist)
{
bestSqrDist = currSqrDist;
hermiteA = hA;
hermiteB = hB;
bestFraction = fraction;
}
}
}
return(bestFraction);
}
private Vector3 TangentAtFraction(HermiteNode hermiteNodeA, HermiteNode hermiteNodeB, float fraction)
{
return(TangentAtFraction(hermiteNodeA.Point, hermiteNodeA.ControlPoint,
hermiteNodeB.Point, hermiteNodeB.ControlPoint,
fraction));
}
private Vector3 TangentAtFraction(HermiteNode hermiteNodeA, HermiteNode hermiteNodeB, float fraction)
{
return TangentAtFraction(hermiteNodeA.Point, hermiteNodeA.ControlPoint,
hermiteNodeB.Point, hermiteNodeB.ControlPoint,
fraction);
}
private float ClosestGuessToPoint(Vector3 point, int intervals,
out HermiteNode hermiteA, out HermiteNode hermiteB)
{
var bestSqrDist = Mathf.Infinity;
float bestFraction = 0f;
hermiteA = _hermiteNodes[0];
hermiteB = _hermiteNodes[_hermiteNodes.Length - 1];
var stepSize = 1f/intervals;
for (int j = 0; j < _hermiteNodes.Length - 1; j++) {
if (j == _hermiteNodes.Length - 2) {
// last point of last segment should reach p1
stepSize = 1f/(intervals - 1f);
}
for (int i = 0; i < intervals; i++) {
var hA = HermitePointN(j);
var hB = HermitePointN(j+1);
var fraction = stepSize * i;
var currPoint = PointAtFraction(hA, hB, fraction);
var currSqrDist = (currPoint - point).sqrMagnitude;
if (currSqrDist < bestSqrDist) {
bestSqrDist = currSqrDist;
hermiteA = hA;
hermiteB = hB;
bestFraction = fraction;
}
}
}
return bestFraction;
}
