public void Parametrize(int fromSegmentIndex, int toSegmentIndex)
{
if (this.knots.Count < 4)
{
return;
}
int num = Math.Min(toSegmentIndex + 1, this.NbSegments);
fromSegmentIndex = Math.Max(0, fromSegmentIndex);
float num2 = 0f;
if (fromSegmentIndex > 0)
{
num2 = this.GetSegmentDistanceFromStart(fromSegmentIndex - 1);
}
for (int i = fromSegmentIndex; i < num; i++)
{
CatmullRomSpline.SubKnot[] segmentSubKnots = this.GetSegmentSubKnots(i);
for (int j = 0; j < segmentSubKnots.Length; j++)
{
CatmullRomSpline.SubKnot subKnot = default(CatmullRomSpline.SubKnot);
num2 = (subKnot.distanceFromStart = num2 + this.ComputeLengthOfSegment(i, (float)(j - 1) * this.Epsilon, (float)j * this.Epsilon));
subKnot.position = this.GetPositionOnSegment(i, (float)j * this.Epsilon);
subKnot.tangent = this.GetTangentOnSegment(i, (float)j * this.Epsilon);
segmentSubKnots[j] = subKnot;
}
this.knots[2 + i].distanceFromStart = num2;
}
}
public bool PlaceMarker(CatmullRomSpline.Marker result, float distance, CatmullRomSpline.Marker from = null)
{
int nbSegments = this.NbSegments;
if (nbSegments == 0)
{
return(false);
}
if (distance <= 0f)
{
result.segmentIndex = 0;
result.subKnotAIndex = 0;
result.subKnotBIndex = 1;
result.lerpRatio = 0f;
return(true);
}
if (distance >= this.Length())
{
CatmullRomSpline.SubKnot[] segmentSubKnots = this.GetSegmentSubKnots(nbSegments - 1);
result.segmentIndex = nbSegments - 1;
result.subKnotAIndex = segmentSubKnots.Length - 2;
result.subKnotBIndex = segmentSubKnots.Length - 1;
result.lerpRatio = 1f;
return(true);
}
int num = 0;
int num2 = 1;
if (from != null)
{
num = from.segmentIndex;
}
for (int i = num; i < nbSegments; i++)
{
if (distance <= this.GetSegmentDistanceFromStart(i))
{
CatmullRomSpline.SubKnot[] segmentSubKnots = this.GetSegmentSubKnots(i);
for (int j = num2; j < segmentSubKnots.Length; j++)
{
CatmullRomSpline.SubKnot subKnot = segmentSubKnots[j];
if (distance <= subKnot.distanceFromStart)
{
result.segmentIndex = i;
result.subKnotAIndex = j - 1;
result.subKnotBIndex = j;
result.lerpRatio = 1f - (subKnot.distanceFromStart - distance) / (subKnot.distanceFromStart - segmentSubKnots[j - 1].distanceFromStart);
break;
}
}
break;
}
}
return(true);
}