/// Update the bounding box of the path
void UpdateBounds()
{
if (boundsUpToDate)
{
return;
}
// Loop through all segments and keep track of the minmax points of all their bounding boxes
MinMax3D minMax = new MinMax3D();
for (int i = 0; i < NumSegments; i++)
{
Vector3[] p = GetPointsInSegment(i);
minMax.AddValue(p[0]);
minMax.AddValue(p[3]);
List <float> extremePointTimes = CubicBezierUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(CubicBezierUtility.EvaluateCurve(p, t));
}
}
boundsUpToDate = true;
bounds = new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min);
}
/// Update the bounding box of the path
public Bounds CalculateBoundsWithTransform(Transform transform)
{
// Loop through all segments and keep track of the minmax points of all their bounding boxes
MinMax3D minMax = new MinMax3D();
for (int i = 0; i < NumSegments; i++)
{
Vector3[] p = GetPointsInSegment(i);
for (int j = 0; j < p.Length; j++)
{
p[j] = MathUtility.TransformPoint(p[j], transform, space);
}
minMax.AddValue(p[0]);
minMax.AddValue(p[3]);
List <float> extremePointTimes = CubicBezierUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(CubicBezierUtility.EvaluateCurve(p, t));
}
}
return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
}
