/// 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 = PathUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(MathUtility.CubicBezier(p, t));
}
}
boundsUpToDate = true;
bounds = new Bounds((minMax.Min + minMax.Max) * .5f, 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 = PathUtility.ExtremePointTimes(p[0], p[1], p[2], p[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(MathUtility.CubicBezier(p, t));
}
}
return(new Bounds((minMax.Min + minMax.Max) * .5f, minMax.Max - minMax.Min));
}
public static Bounds CalculateSegmentBounds (Vector3 p0, Vector3 p1, Vector3 p2, Vector3 p3) {
MinMax3D minMax = new MinMax3D ();
minMax.AddValue (p0);
minMax.AddValue (p3);
List<float> extremePointTimes = ExtremePointTimes (p0,p1,p2,p3);
foreach (float t in extremePointTimes) {
minMax.AddValue (CubicBezierUtility.EvaluateCurve (p0, p1, p2, p3, t));
}
return new Bounds ((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min);
}
public static Bounds CalculateBounds(Vector3[] points)
{
MinMax3D minMax = new MinMax3D();
minMax.AddValue(points[0]);
minMax.AddValue(points[3]);
List <float> extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(CubicBezierUtility.EvaluateCurve(points, t));
}
return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
}
public static Bounds CalculateBounds(Vector3[] points)
{
Debug.Assert(points.Length == 4, "Incorrect number of points supplied to cubic bezier function (expected 4)");
MinMax3D minMax = new MinMax3D();
if (points.Length >= 4)
{
minMax.AddValue(points[0]);
minMax.AddValue(points[3]);
List <float> extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
foreach (float t in extremePointTimes)
{
minMax.AddValue(CubicBezierUtility.EvaluateCurve(points, t));
}
}
return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
}
public static Bounds CalculateBounds(Vector3[] points)
{
Debug.Assert(
points.Length == 4,
"Incorrect number of points supplied to cubic bezier function. Expected 4, but received " + points.Length);
var minMax = new MinMax3D();
if (points.Length >= 4)
{
minMax.AddValue(points[0]);
minMax.AddValue(points[3]);
var extremePointTimes = ExtremePointTimes(points[0], points[1], points[2], points[3]);
foreach (var t in extremePointTimes)
{
minMax.AddValue(EvaluateCurve(points, t));
}
}
return(new Bounds((minMax.Min + minMax.Max) / 2, minMax.Max - minMax.Min));
}